Construction and Application of the Evaluation System of Natural Resources Asset Accountability Audit of Ofﬁcials: A Case Study of Jiangxi, China

: At the Third Plenary Session of the 18th Central Committee of the Communist Party of China, the Central Committee ﬁrst proposed the establishment of the Natural Resources Asset Accountability Audit of Ofﬁcials, which not only marked a new stage in China’s ecological construction, but also triggered many scholars’ discussion on the accountability audit evaluation indicator system of natural resources assets. In this paper, the combination of entropy weight method and TOPSIS method is introduced into the natural resource asset accountability audit evaluation system for the ﬁrst time, and a system based on energy subsystem, economy subsystem and environment subsystem is constructed. The system is used to evaluate the performance of leading ofﬁcials of Jiangxi Province, one of the ﬁrst batch of national pilot zones for ecological conservation in China, in the responsibility of natural resource asset management from 2015 to 2019. The evaluation result indicates that the overall situation of natural resource assets in Jiangxi Province shows a steady upward trend, and the overall performance should be afﬁrmed. The practical application of this evaluation system in the national pilot zone for ecological conservation will enlighten other provinces in China to improve the leading ofﬁcials’ accountability audit of natural resource assets. the environmental subsystem of Jiangxi Province have undergone substantial changes. In the evaluation system, the weighted top ﬁve indicators are forest area, nature reserve area, wastewater treatment facility capacity, raw coal production, and waste gas treatment facility capacity. The nature reserve area, wastewater treatment facility capacity and waste gas treatment capacity belong to the environmental subsystem. The indicators’ values in the environmental subsystem have changed a lot within ﬁve years, leading to a higher comprehensive weight, which reveals that Jiangxi Province has achieved signiﬁcant improvement in environmental governance during 2015–2019.


Introduction
Since the reform and opening up, China has achieved many miracles in economic growth. In 2020, China's GDP has reached 14.72 trillion U.S. dollars, accounting for 17.4% of global GDP [1] and the annual GDP growth rate has been maintained at 2.3% [2]. However, after more than 40 years of extensive development, China is also facing a series of problems such as serious environmental pollution and rapid degradation of species diversity. In 2020, China's fossil fuel carbon dioxide emissions accounted for 30.64% of global emissions [3], and China has become the world's largest carbon emitter [4].
Wackernagel proposed the ecological footprint theory in 1996. It measures the sustainable development of the region by estimating the ecological space required to maintain human natural resource consumption and assimilate human generated waste and comparing it with the ecological carrying capacity of a given area [5,6]. Ecological footprint has become one of the most important indicators to measure sustainability [7][8][9][10] and has attracted the attention of policy makers. The theoretical research on China's ecological footprint such as Galli, pointed out that China's ecological footprint has been increasing in recent years and has exceeded the world's average biocapacity [11]. This demand growth has exceeded the regeneration and absorption capacity of natural resources and led to unsustainability, such as high carbon emissions, land degradation and deforestation [12][13][14]. and led to unsustainability, such as high carbon emissions, land degradation and defor estation [12][13][14]. According to the Global Footprint Network [15] (Figure 1), during 1961 2017, China's ecological footprint increased from 635 billion gha to 5353 billion gha (when the calculation of ecological footprint is not based on a specific location, but based on th total average productivity around the world, the area unit is defined as "global hectare (gha) [16]). It far exceeds the ecological carrying capacity. This reflects the growing im portance of studying how to achieve a balance between economic growth and sustainabl development of natural resources in China [17].  [15].
For this reason, the Chinese government has implemented a series of ecological civi lization construction policies, hoping to alleviate environmental pressure from the roo and change the current situation between the local GDP and environmental resource. Th Third Plenary Session of the Eighteenth Central Committee of the Communist Party o China proposed the establishment of the Natural Resources Asset Accountability Audi of Officials [18] on the "Decisions of the Central Committee of the Communist Party o China on Several Major Issues of Comprehensively Deepening Reform", so that GDP i no longer the only criterion for evaluating the performance of officials. Jiangxi Province Hunan Province, Zhejiang Province, Guizhou Province and many other provinces hav successively begun to deploy the preparation of natural resource balance sheets to "rec ord" ecological resources such as land, trees and water and "price" green water and mountains. Besides, China has made a commitment to the "3060" goal, which strives t achieve carbon peak in 2030 and carbon neutrality in 2060, reflecting the continuous trans formation of China's economy towards green and sustainable development.  [15].
For this reason, the Chinese government has implemented a series of ecological civilization construction policies, hoping to alleviate environmental pressure from the root and change the current situation between the local GDP and environmental resource. The Third Plenary Session of the Eighteenth Central Committee of the Communist Party of China proposed the establishment of the Natural Resources Asset Accountability Audit of Officials [18] on the "Decisions of the Central Committee of the Communist Party of China on Several Major Issues of Comprehensively Deepening Reform", so that GDP is no longer the only criterion for evaluating the performance of officials. Jiangxi Province, Hunan Province, Zhejiang Province, Guizhou Province and many other provinces have successively begun to deploy the preparation of natural resource balance sheets to "record" ecological resources such as land, trees and water and "price" green water and mountains. Besides, China has made a commitment to the "3060" goal, which strives to achieve carbon peak in 2030 and carbon neutrality in 2060, reflecting the continuous transformation of China's economy towards green and sustainable development. The research on natural resources has increasingly shown a cross-departmental, crossdisciplinary trend [19]. The Natural Resources Asset Accountability Audit of Officials involves multiple disciplines, such as resource science and accounting [20]. It aims to quantify ecological performance assessment and accountability and urge local leading officials to comply with regulations and carry out responsibilities in resource management. This policy conforms to the future wave of China's economic development. The implementation of the Natural Resources Asset Accountability Audit of Officials will exert positive effects on the macro and micro levels. On the macro level, this system can significantly improve regional energy efficiency [21] and is conducive to promoting high-quality economic development [22]. It has a positive environmental governance effect, significantly improving the environmental governance of pilot cities [23]. On the micro level, this policy has significantly promoted the fulfillment of environmental responsibilities by enterprises [24] and will cause heavily polluting enterprises to face higher equity costs [25] and exert a positive influence in the implementation of green mergers and acquisitions by heavily polluting enterprises [26]; In addition, the Natural Resources Asset Accountability Audit of Officials also has a supervisory effect on corporate tax avoidance [27].

Selection of Evaluation Indicators
For the construction of the environmental audit evaluation system, related theoretical systems developed earlier are relatively complete [28][29][30]. The World Bank proposed the "Sustainable Development Indicator System" [31], which includes four levels of multidimensional indicators. The "System of Integrated Environmental and Economic Accounting (SEEA) 1993, 2003, 2012" [32][33][34] issued by the United Nations Statistics Division laid the basic framework of green accounting. The Global Reporting Initiative (GRI) has released the Sustainability Reporting Guide [35], which has been updated four times so far. The indicators proposed by different industries have been constructed from the primary and secondary dimensions to build a multiple indicator system. The World Economic Forum, in collaboration with Yale University and Columbia University, developed a multidimensional indicator system "Sustainability Index" [36], which has more than 20 primary indicators and 76 secondary indicators, including a total of five dimensional levels. The Cooperative Development Organization also carried out a comprehensive performance evaluation of the Canadian ecological environment [37], including the impact of transportation and electricity energy consumption on the environment, and the process of centralized treatment of urban waste. In addition, there are four other dimensions for comprehensive evaluation of Canada's overall environmental conditions.
China's natural resource asset audit evaluation system was gradually established after the trial implementation of the "Decision of the Central Committee of the Communist Party of China on Several Major Issues of Comprehensively Deepening Reform". For the selection of evaluation indicators, Xu Hong proposed that the design should be based on policies, funds, natural environment development and utilization of the natural resource [38]; Liu Baocai believes that the evaluation system should be constructed from the aspects of finance, implementation of policies and regulations [39]; Lin Zhonghua proposed to conduct audits from three dimensions of the implementation of natural resource asset laws policies, major decision-making matters, and natural resource asset management [40].

Selection of Evaluation Area
Since China has not yet established a mature natural resource asset audit system, and the natural resource endowments of each province are different. So the current application areas of the Natural Resources Asset Accountability Audit of Officials evaluation indicator system are often limited to certain provinces. Chen Chaobao, based in Jiaozhou City, took "policies, funds, projects, and supervision" as the entry point for the audit, and formulated 80 sub-items in seven categories in terms of the completion of the target accountability system [41]; Pan Wangming conducted audits on land resources, water resources, and forest resources based on Shaoxing City [42]; Ma Pin started from the quantity and quality of resources, policy formulation and implementation, resource protection management, resource development and utilization, and fund use, and based on these five aspects, con- structed an evaluation indicator system in Yunnan [43]; scholars such as Huang Rongbing analyzed the environmental problems faced by different main functional areas and believed that we should select the indicators which can reflect the pressure reduction to build a performance-oriented evaluation indicator system [44].

Selection of Evaluation Method
Some scholars believe that whether a region can achieve sustainable development is restricted by the characteristics of local natural resource endowments and the basic conditions of the ecological environment. Therefore, the Natural Resources Asset Accountability Audit of Officials should be carried out by constructing a regional environmental carrying capacity evaluation indicator system [45][46][47]; Qin Xiaoli based on the pressurestate-response model designed an evaluation system and the analytic hierarchy process method was used for comprehensive evaluation [48]; Li Suying also adopted the analytic hierarchy process method to compare the importance of each indicator in the evaluation system and determine the weight of the indicators, and then uses the fuzzy comprehensive evaluation method to evaluate each indicator, which intuitively shows the problems existing in the resource and environmental management of the audited area [49]; Zhang Lida uses the DeepLap neural network algorithm to extract satellite image feature information and combines with natural resource management planning maps for comparison and analysis [50].
Overall, for the selection of evaluation indicators, many scholars mainly concentrate on the following four categories: the first category is indicators from the legal and regulatory level, such as the Land Law of China; the second category is the indicators set by the authorities and local governments; the third category is indicators set by international organizations and social organizations, such as ISO; the fourth category is auditing standards and guidelines [51]. Regarding the choice of evaluation area, most scholars choose provinces with good natural resources conditions. Few scholars have made evaluations from the perspective of the national pilot zone for ecological conservation. Regarding the choice of evaluation method, most scholars use the expert scoring method to weight the indicators by comparing the relative importance of each indicator, and then use the analytic hierarchy process method for comprehensive scoring. However, considering that the results of the expert's scoring will have individual differences due to the different opinions of the experts, the subjectivity of this process will have an impact on the final scoring results.
The main marginal contribution of this paper lies in: First, this paper conducts an all-round evaluation of natural resource assets from three dimensions of energy subsystem, economic subsystem and environmental subsystem. Analogous to the definition of assets, this paper believes that natural resource assets in one area mainly refer to the collection of natural resources that can bring future economic benefits to the local people. From the three subsystems to evaluate the natural resource assets of a certain region, comprehensively consider the stock of natural resources, the economic benefits the natural resource can bring, which covers the two basic characteristics of the asset definition. Second, this paper introduces the entropy method into the Natural Resource Asset Accountability Audit of Officials evaluation system, which reduces the impact of subjectivity of the evaluation results and combined with the TOPSIS method for comprehensive evaluation. Third, this paper applies the evaluation system to Jiangxi Province, one of the national pilot zones for ecological conservation in China. As the first batch of national ecological civilization experimental zone, Jiangxi Province adheres to the strategic positioning of building a "Jiangxi model" of China, and unswervingly follows the path of ecological priority and green development. In recent years, it has achieved a series of remarkable achievements in natural resource protection and ecological governance. Applying the Natural Resources Asset Accountability Audit of Officials evaluation indicator system to Jiangxi Province can help to deeply analyze the driving factors of its ecological performance improvement and play a demonstrative role for other provinces in China to reach the sustainable development model of natural resource assets, which also reflects the original intention of establishing a national ecological civilization experimental zone in China.

Entropy Weight Method
The weighting method of a comprehensive evaluation model can be mainly divided into subjective weighting method and objective weighting method. The subjective weighting method mainly includes comparative weighting method, analytic hierarchy process and expert scoring method, but its evaluation result will be disturbed by individual subjectivity and lacks objectivity. Objective weighting method mainly includes principal component analysis method, entropy weight method and mean square deviation method. It mainly calculates the weight according to the nature of the evaluation indicator data, which can deeply reflect the discrimination ability of the indicator.
Entropy weight method mainly calculates the information entropy according to the variation degree of each indicator, and then weights each evaluation indicator. The concept of entropy was first introduced into information theory from thermodynamics by C.E. Shannon. The amount of information entropy represents the dispersion of data. The smaller the dispersion, the less information it contains, and the lower the weight is given to the indicator [52]. If an indicator is the same value for all samples, the weight of this indicator should be 0, because this indicator cannot reflect the difference of each evaluation sample.

Standardized Data
For efficiency-based indicators, use the Formular (1) to standardize; for cost-based indicators, use the Formular (2) to standardize. The formula is as follows: In Formulars (1) and (2), x ij is the original value of the jth indicator in year i, and x ij is the standardized value. i = 1, 2, . . . , m ( m is the number of evaluation years); j = 1, 2, . . . , n ( n is the number of evaluation indicators).

Normalization of Indicators
Normalization is to eliminate the influence of the different dimensions of each indicator, so that all the data fall within the [0,1] interval, which is convenient for comparison between different indicators. The matrix after normalization is X, the elements of which are X ij :

Calculate Information Entropy e j
The information entropy e j reflects the amount of information contained in the evaluation indicators. The larger the information entropy, the more the amount of information displayed by the indicator. 0 ≤ e j ≤ 1 (If X ij = 0, define X ij × ln X ij = 0).

Technique for Order Preference by Similarity to an Ideal Solution
TOPSIS method is a common comprehensive evaluation method, which first constructs the optimal and inferior solutions of the evaluation system, and then calculates the relative proximity of each evaluation object to the ideal solution (optimal and inferior solutions), then judge the performance of each evaluation object.

Construct Entropy Weight Decision-Making Matrix V
The entropy weight decision-making matrix V is constructed using the weights of each indicator determined by the entropy weight method, where the element is V ij :

Calculate the Ideal Solution and Proximity
The larger the value of the element V ij in the decision matrix V, the better the solution. Define the ideal solution (maximum value) V + and the negative ideal solution (minimum value) V − : The distance S + i between the ith (i = 1, 2, . . . , n) evaluation object and the ideal solution (maximum value), and the ith (= 1, . . . , n) evaluation object and the negative ideal solution, the (minimum) distance S − i .
Calculate the proximity C i of the ith (i = 1, 2, . . . , n) evaluation object. 0 ≤ C i ≤ 1. The larger C i is, the smaller S + i is, that is, the closer it is to the ideal solution.

Indicator Selection
The concept of natural resource assets is different from the natural resources in the traditional sense, which can be broadly defined as the set of all resources in an administrative area. First, they are owned or controlled by the state, second, they are expected to bring an inflow of future economic benefits to the state and the people, and third, they are a general term for various elements of material wealth in nature that can be measured in money [53]. SEEA 2012 accounting for natural resources covers mineral resources, water resources, forest resources, land resources, and other biological resources [54].
In order to conduct an overall audit of the natural resource assets of leading officials, the evaluation system constructed in this paper will cover natural resources such as land, forest, mineral, and water resources. This paper will establish a 3E model to assess the status of natural resource assets in three dimensions: energy subsystem, economic subsystem, and environmental subsystem. The energy subsystem mainly assesses the stock of natural resources assets, including 22 indicators such as total water resources, forest area, forest Sustainability 2022, 14, 528 7 of 20 accumulation, arable land area and mineral resources stock; the economic subsystem mainly assesses the economic benefits generated by each natural resource, including 12 indicators such as water consumption per 10,000 Yuan GDP, hydroelectric power generation, forestry output value and mining output value; the environment subsystem mainly assesses local environmental management, environmental quality, ecological protection, green living and other aspects. The environmental subsystem mainly assesses the local environmental governance, environmental quality, ecological protection and other aspects, including sewage discharge, forest coverage, industrial sulfur dioxide emissions, industrial nitrogen oxide emissions, PM2.5 (particulate matter in the atmosphere with a diameter of 2.5 microns or less) concentration and other 18 indicators, and the evaluation indicators system is shown in Figure 2, and the detail information such as the unit of the indicator is shown in the Appendix A Table A1. resources, forest resources, land resources, and other biological resources [54].
In order to conduct an overall audit of the natural resource assets of leading officials, the evaluation system constructed in this paper will cover natural resources such as land, forest, mineral, and water resources. This paper will establish a 3E model to assess the status of natural resource assets in three dimensions: energy subsystem, economic subsystem, and environmental subsystem. The energy subsystem mainly assesses the stock of natural resources assets, including 22 indicators such as total water resources, forest area, forest accumulation, arable land area and mineral resources stock; the economic subsystem mainly assesses the economic benefits generated by each natural resource, including 12 indicators such as water consumption per 10,000 Yuan GDP, hydroelectric power generation, forestry output value and mining output value; the environment subsystem mainly assesses local environmental management, environmental quality, ecological protection, green living and other aspects. The environmental subsystem mainly assesses the local environmental governance, environmental quality, ecological protection and other aspects, including sewage discharge, forest coverage, industrial sulfur dioxide emissions, industrial nitrogen oxide emissions, PM2.5 (particulate matter in the atmosphere with a diameter of 2.5 microns or less) concentration and other 18 indicators, and the evaluation indicators system is shown in Figure 2, and the detail information such as the unit of the indicator is shown in the Appendix A Table A1.  The main indicators of the natural resources accountability audit of officials are denoted by C = (C 1 , C 2 , . . . , C m ), and each main-level indicator Cm has n sub-indicators, denoted by C mn = (C m1 , C m2 , . . . , C mn ), where C mn denotes the nth sub-indicator under the mth main indicator. Firstly, the entropy weighting method is used to assign weights to each indicator based on the information entropy of different indicators, and then the TOPSIS method is used to comprehensively evaluate the status of natural resource assets each year.

Study Area
Jiangxi Province is located between 24 • 29 14" to 30 • 04 41" north latitude and 113 • 34 36" to 118 • 28 58" east longitude ( Figure 3). It is located in southeastern China with a total area of 166,900 square kilometers in 2019. It is dominated by mountainous hills, narrow in the north and wide in the south.

Study Area
Jiangxi Province is located between 24°29′14″ to 30°04′41″ north latitude and 113°34′36″ to 118°28′58″ east longitude ( Figure 3). It is located in southeastern China with a total area of 166,900 square kilometers in 2019. It is dominated by mountainous hills, narrow in the north and wide in the south. Since the China's Central Committee passed the "Pilot Plan for the Development of Natural Resources Accountability Audit of Officials" [55] in July 2015, various parts of the country have carried out the natural resources accountability audit of officials policy based on their own conditions. Jiangxi Province has successively deployed natural resources accountability audit of officials. Taking into account that since the construction of the first batch of national pilot zones for ecological conservation in China, the quality of Jiangxi's ecological environment has been continuously improved on a high-level basis, taking the lead in realizing the "National Forest City" and "National Garden City", and 35 ecological civilization pilot reforms results are included in the national promotion list. Therefore, this article chooses Jiangxi Province as the blueprint, scores the natural resource assets management performance of the leading officials in Jiangxi Province.

Data Source
Taking into account the availability of data, this article mainly evaluates the management of natural resource assets by leading officials in Jiangxi Province from 2015 to 2019 from the three dimensions of energy subsystem, economic subsystem, and environmental subsystem based on 32 indicators. The following data mainly come from the China National Bureau of Statistics and the Jiangxi Provincial Statistical Yearbook.

Natural Resources Overview
Land resource situation: The total land area of the province is 16 million square meter, of which arable land is 3.7 billion square meters, accounting for 18.52%; garden land is 4,764,300 mu, accounting for 1.90%; woodland is 154.5257 million mu, accounting for 61.71%; grassland is 4.0306 million mu, accounting for 1.61% of urban, village and industrial and mining land 14.19 million acres, accounting for 5.96%; 3.769 million acres of land Since the China's Central Committee passed the "Pilot Plan for the Development of Natural Resources Accountability Audit of Officials" [55] in July 2015, various parts of the country have carried out the natural resources accountability audit of officials policy based on their own conditions. Jiangxi Province has successively deployed natural resources accountability audit of officials. Taking into account that since the construction of the first batch of national pilot zones for ecological conservation in China, the quality of Jiangxi's ecological environment has been continuously improved on a high-level basis, taking the lead in realizing the "National Forest City" and "National Garden City", and 35 ecological civilization pilot reforms results are included in the national promotion list. Therefore, this article chooses Jiangxi Province as the blueprint, scores the natural resource assets management performance of the leading officials in Jiangxi Province.

Data Source
Taking into account the availability of data, this article mainly evaluates the management of natural resource assets by leading officials in Jiangxi Province from 2015 to 2019 from the three dimensions of energy subsystem, economic subsystem, and environmental subsystem based on 32 indicators. The following data mainly come from the China National Bureau of Statistics and the Jiangxi Provincial Statistical Yearbook.

Natural Resources Overview
Land resource situation: The total land area of the province is 16 million square meter, of which arable land is 3.7 billion square meters, accounting for 18.52%; garden land is 4,764,300 mu, accounting for 1.90%; woodland is 154.5257 million mu, accounting for 61.71%; grassland is 4.0306 million mu, accounting for 1.61% of urban, village and industrial and mining land 14.19 million acres, accounting for 5.96%; 3.769 million acres of land for transportation, accounting for 1.51%; 18,749,400 acres of land for water and water conservancy facilities, accounting for 7.49%; and 3.263 million acres of other land, accounting for 1.30%. Figure 4 shows main types of land resources in Jiangxi Province. for transportation, accounting for 1.51%; 18,749,400 acres of land for water and w servancy facilities, accounting for 7.49%; and 3.263 million acres of other land, acc for 1.30%. Figure 4 shows main types of land resources in Jiangxi Province. Overview of water resources: The total amount of water resource in Jiangxi P is 114.09 billion cubic meters, the total runoff of surface water resources is 112.98 cubic meters, and the total rechargeable groundwater resources is 29.854 billion c ters. It has the largest freshwater lake in the country and more than 160 rivers wi throughout the year. The volume of water resources is relatively abundant.
Overview of forest resources: The total land area of Jiangxi Province is 16.695 square kilometers, of which 10.720 million square kilometers are used for forest province, accounting for 64.2%; the forest coverage rate is 63.1%. Among the f sources, the area of forest land is 9.185 million square kilometers, the area of spar land is 112,000 square kilometers, the area of uncultivated forest land is 230,00 kilometers, and the nursery land is 3 thousand square kilometers. In recent years Province has issued the "Government Work Report" to continuously promote the of hills for afforestation and the conversion of farmland to forests, and the provin est coverage rate has continued to stabilize at around 63%-64%.

Economy Overview
The permanent population of Jiangxi Province in 2019 was 46.661 million, an of 186,000 over the end of the previous year. Among them, the urban permanent tion was 26.793 million, accounting for 57.4% of the total population, and the ru manent population was 19.868 million, accounting for 42.6% of the total populat total GDP was 2475.75 billion yuan, at a growth rate of 8.98%.
In 2019, the total budget expenditure of Jiangxi Province was 640.26 billion increase of 13%; taxation accounted for 81.5% of fiscal revenue and 70.3% of gener budget revenue. The comparison of economic development in the past five ye Figure 5 shows:  Overview of water resources: The total amount of water resource in Jiangxi Province is 114.09 billion cubic meters, the total runoff of surface water resources is 112.985 billion cubic meters, and the total rechargeable groundwater resources is 29.854 billion cubic meters. It has the largest freshwater lake in the country and more than 160 rivers with water throughout the year. The volume of water resources is relatively abundant.
Overview of forest resources: The total land area of Jiangxi Province is 16.695 million square kilometers, of which 10.720 million square kilometers are used for forestry in the province, accounting for 64.2%; the forest coverage rate is 63.1%. Among the forest resources, the area of forest land is 9.185 million square kilometers, the area of sparse forest land is 112,000 square kilometers, the area of uncultivated forest land is 230,000 square kilometers, and the nursery land is 3 thousand square kilometers. In recent years, Jiangxi Province has issued the "Government Work Report" to continuously promote the closure of hills for afforestation and the conversion of farmland to forests, and the province's forest coverage rate has continued to stabilize at around 63-64%.

Economy Overview
The permanent population of Jiangxi Province in 2019 was 46.661 million, an increase of 186,000 over the end of the previous year. Among them, the urban permanent population was 26.793 million, accounting for 57.4% of the total population, and the rural permanent population was 19.868 million, accounting for 42.6% of the total population. The total GDP was 2475.75 billion yuan, at a growth rate of 8.98%.
In 2019, the total budget expenditure of Jiangxi Province was 640.26 billion yuan, an increase of 13%; taxation accounted for 81.5% of fiscal revenue and 70.3% of general public budget revenue. The comparison of economic development in the past five years is as Figure 5 shows:

Land Resources
The Jiangxi Government has continued to promote land reform and planning revisions. At the beginning of 2019, the State Council's approval of major project construction land applications has dropped by 59% year-on-year, and more than 10 major project demonstrations have been accelerated, which improves the efficiency of construction land use and strengthens land protection management. The application base of land resource evaluation indicators as the Table 1 shows: Note. The units of Cultivated land area, Urban construction land area, Urban garden green area, Soil erosion control area, Area of nature reserve are ten thousand mu, ten thousand square kilometers, hectares, thousand hectares and ten thousand hectares.

Forest Resources
The national land greening resources bulletin of Jiangxi Province shows that the quality of forest resources in Jiangxi Province is still steadily improving. In recent years, Jiangxi Province has made great progress in the construction of ecological civilization. The success of the construction of ecological civilization cities has further increased the amount of urban forest resources in Jiangxi Province. Great progress has been made in forest ecological poverty alleviation, and forest coverage has been further stabilized. The application base of forest resource evaluation indicators as the Table 2 shows:

Water Resources
Since Jiangxi Government set up the "Three Red Lines" control indicators, all the districts and cities in the province have reached the red line indicators. The water consumption per 10,000 yuan of GDP in Jiangxi Province in 2019 is 114 cubic meters, a decrease of 26.0% from 2015; the effective coefficient of agricultural irrigation is 0.509, Higher than the annual planning target. In addition, the water quality compliance rate of the 178 important national rivers and lakes water function areas included in the assessment was 97.7%, far exceeding the annual red line indicator. The application base of water resource evaluation indicators as the Table 3 shows: Note. The units of the indicators above are 100 million cubic meters, cubic meters/person, 100 million cubic meters, 100 million cubic meters, cubic meters/yuan, 100 million cubic meters, 100 million kilowatt hours, ten thousand cubic meters, ten thousand cubic meters, 10,000 tons.

Mineral Resources
By 2019, there were a total of 10 national-level integrated exploration areas in the province, which hold the world's largest reserves of wollastonite and fluorite mines so far. The total number of mines in Jiangxi Province is 3582, of which 95 are large-scale mines, 66 are medium-sized mines, and 3421 are small-scale mines. From 2018 to 2019, the province's mining volume was 355 million tons, the total mining output value was 34.699 billion yuan, and the total profit was 3.334 billion yuan. In 2019, the ratio of 10,000 yuan of GDP to minerals was 0.13%, which was a large decline compared to previous years. This also shows that Jiangxi Province's industrial structure reform has achieved great results.

Atmospheric Conditions
In 2019, the emissions of sulfur dioxide and nitrogen oxides in Jiangxi Province were reduced by 10.17% and 9.63% over 2015, and carbon dioxide emissions per unit of GDP fell by more than 2.5%. The environmental condition is still at the forefront of the country, and the ecological environment air quality is generally excellent. The application base of atmospheric environmental evaluation indicators as the Table 4 shows: In order to eliminate the impact of the different types of indicators on the evaluation results, the indicators are first standardized using Formulars (1) and (2). Then calculate the information entropy e j and difference coefficient of each indicator g j and indicators weight w j , and finally get the weight of each indicator as shown in Table 5. This paper applies the Natural Resources Asset Accountability Audit of Officials evaluation system based on the Entropy-TOPSIS method to Jiangxi Province, one of the first batch of national ecological civilization experimental areas in China. The evaluation results (Table 6) show that during 2015-2019, the closeness between the status of natural resources assets in Jiangxi Province and the optimal solution increased from 0.453 to 0.583, and constantly approached 1. This result indicates that in response to the "Pilot Plan for the Implementation of the Natural Resources Asset Accountability Audit of Officials" adopted by the Central Committee for Comprehensively Deepening Reform in 2015, after Jiangxi Province began to deploy a Natural Resources Asset Accountability Audit of Officials, in the period from 2015 to 2019, Jiangxi government has performed well in fulfilling their natural resource asset management responsibilities, and has achieved good results in ecological environment construction, and the overall natural resource situation has shown a steady upward trend. Although there is still room for improvement in the management process, the overall performance should be affirmed. By comparing the distance S+ between the state of natural resource assets in Jiangxi Province and the optimal solution and the distance S− between the worst solution in 2015-2019 ( Figure 6), it can be seen that the distance between the state of natural resource assets in Jiangxi Province and the optimal solution is decreasing year by year. The overall distance from the worst solution shows an increasing trend, which indicates that the state of natural resource assets in Jiangxi Province is constantly approaching the optimal solution and far away from the worst solution.
the Implementation of the Natural Resources Asset Accountability Aud adopted by the Central Committee for Comprehensively Deepening Reform Jiangxi Province began to deploy a Natural Resources Asset Accountabilit ficials, in the period from 2015 to 2019, Jiangxi government has performed w their natural resource asset management responsibilities, and has achieve in ecological environment construction, and the overall natural resource shown a steady upward trend. Although there is still room for improveme agement process, the overall performance should be affirmed. By comparing the distance S+ between the state of natural resource a Province and the optimal solution and the distance S-between the worst so 2019 (Figure 6), it can be seen that the distance between the state of natural in Jiangxi Province and the optimal solution is decreasing year by year. T tance from the worst solution shows an increasing trend, which indicates t natural resource assets in Jiangxi Province is constantly approaching the op and far away from the worst solution.

Analysis of Weight
In order to further analyze the reasons for the improvement of natural in Jiangxi Province, the main driving system that changes the evaluation s alyzed based on the weight of the indicators. Considering that the principle method is to reflect the amount of information contained in the evaluation cording to the degree of variation of the evaluation indicators, the more in

Analysis of Weight
In order to further analyze the reasons for the improvement of natural resource assets in Jiangxi Province, the main driving system that changes the evaluation score can be analyzed based on the weight of the indicators. Considering that the principle of the entropy method is to reflect the amount of information contained in the evaluation indicators according to the degree of variation of the evaluation indicators, the more information the indicators is given the higher the weight. In the process of using the entropy method to evaluate natural resource assets in Jiangxi Province from 2015 to 2019, the comprehensive weight (Figure 7) assigned to the environmental subsystem is 0.458, while the respective weights of the energy subsystem and the economic subsystem are 0.253 and 0.289. This reflects that during the period 2015-2019, the indicators' values in the environmental subsystem of Jiangxi Province have undergone substantial changes. In the evaluation system, the weighted top five indicators are forest area, nature reserve area, wastewater treatment facility capacity, raw coal production, and waste gas treatment facility capacity. The nature reserve area, wastewater treatment facility capacity and waste gas treatment capacity belong to the environmental subsystem. The indicators' values in the environmental subsystem have changed a lot within five years, leading to a higher comprehensive weight, which reveals that Jiangxi Province has achieved significant improvement in environmental governance during 2015-2019. weight (Figure 7) assigned to the environmental subsystem is 0.458, w weights of the energy subsystem and the economic subsystem are 0 reflects that during the period 2015-2019, the indicators' values in the system of Jiangxi Province have undergone substantial changes. In the the weighted top five indicators are forest area, nature reserve area, w facility capacity, raw coal production, and waste gas treatment facili ture reserve area, wastewater treatment facility capacity and waste gas belong to the environmental subsystem. The indicators' values in the system have changed a lot within five years, leading to a higher com which reveals that Jiangxi Province has achieved significant improvem tal governance during 2015-2019.

Analysis of Three Subsystems
By analyzing the scores of the three major subsystems of energy vironment during 2015-2019 (Figure 8), it can be seen that the score o subsystem has increased year by year, from 0.30 in 2015 to 0.73 in 2 140%. The score of the economic subsystem shows a downward tren to 0.39 in 2019. The resource subsystem fluctuates in different trend understanding the overall performance of each of the three subsystem conduct a specific analysis of the indicators in each system to find th for the improvement of the natural resource asset situation in Jiangxi weights of the energy subsystem and the economic subsystem are 0.253 and reflects that during the period 2015-2019, the indicators' values in the environm system of Jiangxi Province have undergone substantial changes. In the evaluat the weighted top five indicators are forest area, nature reserve area, wastewate facility capacity, raw coal production, and waste gas treatment facility capac ture reserve area, wastewater treatment facility capacity and waste gas treatme belong to the environmental subsystem. The indicators' values in the environm system have changed a lot within five years, leading to a higher comprehens which reveals that Jiangxi Province has achieved significant improvement in en tal governance during 2015-2019.

Analysis of Three Subsystems
By analyzing the scores of the three major subsystems of energy, econom vironment during 2015-2019 (Figure 8), it can be seen that the score of the env subsystem has increased year by year, from 0.30 in 2015 to 0.73 in 2019, an 140%. The score of the economic subsystem shows a downward trend, from 0 to 0.39 in 2019. The resource subsystem fluctuates in different trends every understanding the overall performance of each of the three subsystems, it is n conduct a specific analysis of the indicators in each system to find the driving for the improvement of the natural resource asset situation in Jiangxi Province  The main reason for the continuous increase in the score of the environmental subsystem is the overall increase in the treatment capacity of wastewater facilities, forest pest control rates, urban green coverage and waste gas treatment facilities capacity in Jiangxi Province in the past five years, as well as industrial wastewater discharge and soil erosion control. The industrial sulfur dioxide emissions, industrial nitrogen oxide emissions, industrial smoke (dust) emissions and PM2.5 concentration show a downward trend. In particular, indicators related to air pollutant emissions have improved significantly. Compared with 2015, Jiangxi's industrial sulfur dioxide emissions decreased by 71% in 2019, industrial nitrogen oxide emissions decreased by 30%, and industrial smoke (dust) emissions decreased by 53%. The PM 2.5 concentration dropped by 19%, reflecting the remarkable results achieved in the atmospheric governance of Jiangxi Province. This is mainly attributable to Jiangxi Province's solid promotion of desulfurization, stock removal, and dust removal transformation in key industries. Jiangxi Province has implemented classified policies for key factors affecting air quality, and vigorously promoted dust removal, coal control, emission reduction, and emission compliance. In addition, it has strengthened scientific and technological support, created an air pollution intelligent management platform, real-time dispatch and command the province's air pollution control work, and continuously improve the level of scientific and precise pollution control. In addition, the Jiangxi Provincial Department of Ecology and Environment insists on publishing daily air quality rankings of cities with districts, preparing weekly briefings on pollution prevention and control, monthly reporting on air quality conditions across the province, and holding quarterly air pollution prevention and control work scheduling meetings. Special teams keep an eye on the hourly data of national-controlled air quality stations, and broadcast hourly during the sprint, forming a set of happy working mechanisms, making Jiangxi Province the first in the central provinces in terms of ambient air quality.
The reason for the decline in the performance of the economic subsystem lies in the continuous decline in hydroelectric power generation, raw coal production, coke production and water consumption per 10,000 yuan of GDP, as well as the increase in the total output value of forestry. Compared with 2015, the water consumption per 10,000 yuan of GDP in Jiangxi Province in 2019 has dropped by about 31%, which reflects the improvement in economic benefits brought by water resources in Jiangxi Province. However, Jiangxi Province's raw coal production, coke production, and hydroelectric power generation have declined, resulting in a decline in the score of the economic subsystem. However, considering that China adheres to the new development concept of "innovation, coordination, green, openness, and sharing" and promotes the continuous transformation of the economy towards high-quality development and low-carbon development, the reason for this change is likely to be caused by the change in the energy structure of Jiangxi Province. The increase in the use of clean energy, such as natural gas, has led to a decline in the demand for raw coal and coke, which in turn led to a decline in its production.
The main reason for the continuous fluctuation of the energy subsystem is that the stock of water resources in Jiangxi Province has fluctuated during the five years. The stock of water resources has increased during 2015-2016, but it has been declining during 2016-2018, and has rebounded in 2019. Per capita water resources are similar to the changes in the stock of surface water resources. In addition to water resources, the situation in Jiangxi Province is optimistic in other respects. The area of forest and arable land, as well as the area of urban gardens and green areas, is showing an upward trend.

Conclusions
The actual application of the Natural Resources Asset Accountability Audit of Officials evaluation system not only has enlightenment for the Jiangxi Province, but also contributes ideas to the natural resource asset audit system for leading officials in other provinces across the country. On the one hand, this paper starts with the scientific and comprehensive indicators and builds an evaluation system based on the three subsystems of Energy, Environment, and Economy, which not only takes into account the attributes of natural resources themselves, but also takes into account their economic effect and the ability of leading officials to govern the environment. On the other hand, in order to enhance the objectivity of the evaluation system, this paper introduces the combination of entropy method and TOPSIS method into the Natural Resources Asset Accountability Audit of Officials evaluation system to help improve the objectivity and fairness of audit results.
By applying this evaluation system to Jiangxi Province, one of the national ecological civilization experimental areas, it has revealed that the natural resource asset situation of Jiangxi Province has been continuously improving during the period 2015-2019. After conducting a specific analysis of the three major subsystems, it is found that the environmental subsystem drives the improvement of the overall score. The continuous improvement of atmospheric conditions in the environmental subsystem has become the core driving factor. The main shortcoming of Jiangxi Province is that the resource subsystem and economic subsystem have not yet reached a stable state. In the future economic development of Jiangxi Province, it should stick to the resource-saving economic route and focus on the efficiency of the use of natural resource assets and pay attention to the increase in GDP while at the same time. Improve the efficiency of resource use to achieve a high-quality development pattern.
Other provinces can also use similar ideas to evaluate the natural resources and resource conditions of the province and reveal the driving factors and shortcomings of the coordinated development of economy and environment by constructing the three major subsystems of energy, economy, and environment and adjusting the focus of work in a targeted way to quickly make up for shortcomings and promote the formation of a coordinated economic and environmental development. In addition, local leading officials can take into account local natural resource endowments in accordance with local conditions and formulate an evaluation system with local characteristics.

Use Modern Technology to Improve the Natural Resource Database
In the process of applying the evaluation system of this article to Jiangxi Province, some natural resource assets in Jiangxi Province have problems such as incomplete registration and lagging access to resources. The resource management cycles have a strong lag relative to the term of office, such as mineral resources. The statistics of Jiangxi's coal reserves, iron ore reserves, copper reserves and other data have only been updated to 2016. The imperfection of statistical data will lead to the lack of some quantitative indicators and undermine the comprehensiveness of the evaluation system.

Develop a System of Audit Indicators with Local Condition
The application of the evaluation of the provincial-level Natural Resources Asset Accountability Audit of Officials evaluation system can also provide some suggestions for other provinces, and provide authentic reference for the provincial leaders, as well as, better adapt to the needs of local governments at all levels. In respect to practice, it is recommended that relevant professionals can make appropriate additions, deletions, deletions and modifications to the evaluation indicators based on local geographic characteristics.

Make the Correlation between the Balance Sheet of Natural Resources and the Audit Evaluation System
With the comprehensive implementation of the natural resource balance sheet policy in many provinces across the country, the era of normalization of Natural Resources Asset Accountability Audit of Officials is coming. It is believed that in the future, many provinces will release balance sheets covering water resources, land resources, and forest resources, and each province can audit the management of natural resources assets of leading cadres based on the new perspective of natural resources balance sheets.

Fully Implement the Accountability System for Ecological Environment and Strive for "Look Back" of Natural Resource Asset Audit
Natural resource asset auditing is not the end of natural resource protection. Through the establishment of a sound ecological and environmental accountability system, local leading officials are responsible for the ecological effects during their term of office, so as to encourage the next leading officials to fulfill their ecological governance obligations and strive for a sustainable development.

Conflicts of Interest:
The authors declare no conflict of interest.
Appendix A Table A1. Natural resources asset accountability audit of officials' evaluation indicators.

Main Indicators Sub-Indicators
Energy subsystem C 1 Total water resources C 11 Amount of water resources per capita C 12 Amount of surface water resources C 13 Amount of underground water C 14 Forest area C 15 Forest stock C 16 Total standing wood accumulationC 17 Arable land area C 18 Urban construction land area C 19 Area of urban landscaped areas C 110 Forestry

Main Indicators Sub-Indicators
Economic Subsystem C 2 Water Consumption of 10,000 GDP C 21 Water supply C 22 Hydroelectric power generation C 23 Effective utilization coefficient of water C 24 Total forestry output value C 25 Land for construction of 10,000 GDP C 26 Mining output value C 27 Growth rate of mining output value C 28 Mineral ratio of 10,000 Yuan GDP C 29 Total city gas supply C 210 Production of raw coal C 211 Coke Production Volume C 212 Environmental Subsystem C 3 Sewage Discharge Volume C 31 Total Wastewater Treatment C 32 Treatment capacity of wastewater facilities C 33 Industrial wastewater emissions C 34 Forest coverage rate C 35 Forest pest control rate C 36 Urban greening coverage area C 37 Soil erosion control area C 38 Area of Nature Reserve C 39 Utilization Rate of Mineral Resources Reserves C 310 Mineral resources recovery rate C 311 Land reclamation rate of mining areas C 312 Total industrial waste gas emissions C 313 Treatment capacity of exhaust gas facilities C 314 Industrial sulfur dioxide emissions C 315 Industrial nitrogen oxide emissions C 316 Industrial smoke (dust) emissions C 317 PM 2.5 concentration C 318