National Multi-Scenario Simulation of Low-Carbon Land Use to Achieve the Carbon-Neutrality Target in China
Abstract
1. Introduction
2. Data Sources and Processing
3. Methods
3.1. Research Framework
3.2. Land Use Simulation Based on the PLUS Model
3.2.1. PLUS Model
3.2.2. Parameter Settings
3.3. GeoSOS-FLUS Model
3.4. Extrapolation of Trends in Influencing Factors from 2030 to 2060
3.5. Scenario Settings
3.6. Model Simulation Accuracy Evaluation
3.7. Carbon Emission Calculation
3.7.1. Direct Carbon Emission Accounting Model for Land Use
3.7.2. Indirect Carbon Emission Accounting Model for Land Use
3.7.3. Land Use Net Carbon Emission Accounting
4. Results
4.1. Accuracy Evaluation
4.2. Analysis of the Spatiotemporal Evolution Characteristics of Land Use from 2030 to 2060
4.3. Analysis of the Spatiotemporal Evolution Characteristics of Land Use Carbon Emissions in China from 2000 to 2060
4.3.1. Dynamics of Land Use Carbon Emissions in China from 2000 to 2020
4.3.2. Dynamics of Land Use Carbon Emissions in China from 2030 to 2060
4.3.3. Analysis of the Spatiotemporal Characteristics of Land Use Carbon Emissions in China from 2030 to 2060
5. Discussion
5.1. Analysis of Carbon Emission Peaks in Multiple Scenarios in China from 2030 to 2060
5.2. Policy Suggestions
5.3. Advantages, Disadvantages and Prospects
6. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Data Type | Data Subcategory | Data Description | Data Sources |
---|---|---|---|
Land use | Land use data | Three epochs in 2010, 2015, and 2020 with 30 m resolution | https://earthengine.google.com/ (accessed on 24 October 2024) |
Natural environmental factors | Distance to water | Distance to water bodies such as rivers, lakes, reservoirs, etc. | Taken from 2020 land use data |
DEM | 1 km resolution raster data | https://www.resdc.cn/ (accessed on 30 October 2024) | |
Slope | Derived from DEM | ||
Soil type | 1 km resolution raster data | ||
Average annual temperature | Average temperature from 2010 to 2020 | ||
Average annual precipitation | Average precipitation from 2010 to 2020 | ||
Socio-economic factors | Population | Spatialized expression of population density from 2000 to 2020 | |
GDP | Spatialized expression of GDP value from 2000 to 2020 | ||
Distance to railway | Distance to railway | OpenStreetMap | |
Distance to highway | Distance to highway | ||
Distance to primary roads | Distance to primary roads in 2022 | ||
Distance to secondary roads | Distance to secondary roads in Z2022 | ||
limiting factors | Nature reserve data | vector data in 2022 | |
Statistical data | Energy consumption data | Provincial consumption of major energy sources | China National Bureau of Statistics |
Development Scenario | Restricted Conversion Area | Demand Forecast Adjustment | Cost Matrix Setup | Relevant Policies |
---|---|---|---|---|
Natural development | / | / | / | / |
Economic growth | / | The probability of conversion from cultivated land, forest, and grassland to construction land increases by 30%. The probability of conversion from construction land to land types other than cultivated land decreases by 30%. | Restrict the conversion of construction land to other land types. | Restrict the conversion of cultivated land and forest to construction land. |
Contraction control | / | The probability of conversion from construction land to land types other than barren land increases by 30%. | Restrict the conversion of cultivated land and forest to construction land. | Measures such as downsizing development. |
Cultivated land protection | Cultivated land protection zones | The probability of conversion from cultivated land to other land types decreases by 50%. | Restrict the conversion of cultivated land to other land types. | Relevant documents such as the delineation of permanent basic cultivated Land. |
Ecological protection | Ecological conservation zones | The probability of conversion from forest and grassland to construction land decreases by 20%. The probability of conversion from water bodies and cultivated land to construction land decreases by 30%. The probability of conversion from cultivated land and construction land to forest increases by 10%. | Restrict the conversion of forest and water bodies to other land types. Only allow grassland to convert to forest and water bodies. | Relevant documents such as the ecological protection red line. |
Sustainable development | Integrating Cultivated land and ecological conservation zones | The probability of conversion from cultivated land to other land types, excluding forest and construction land, decreases by 30%. The probability of conversion from forest, grassland, and water bodies to construction land decreases by 10%. The probability of conversion from water bodies and grassland to forest increases by 20%. The probability of conversion from construction land to other land types, excluding cultivated land and forest, decreases by 30%. | Restrict the conversion of cultivated land and forest to construction land. | Relevant documents such as low-carbon development, the achievement of the “dual carbon” goals, and sustainable development. |
Land Use Type | Carbon Emission Coefficient t/(hm2·a) |
---|---|
Cultivated land | 0.4595 |
Forest | −0.6125 |
Grassland | −0.0205 |
Water Bodies | −0.0253 |
Barren land | −0.0005 |
Energy Types | Standard Coal Conversion Coefficient | Carbon Emission Coefficient |
---|---|---|
Coal | 0.7143 | 0.7559 |
Coke | 0.9714 | 0.8550 |
Crude oil | 1.4286 | 0.6185 |
Gasoline | 1.4714 | 0.5538 |
Kerosene | 1.4714 | 0.5714 |
Diesel oil | 1.4571 | 0.4483 |
Liquefied Petroleum Gas | 1.7143 | 0.5042 |
Natural gas | 1.2143 | 0.5921 |
PLUS model | Accuracy Indicators | Natural Development (Fixed Effects) | Natural Development | Economic Growth | Contraction Control | Cultivated Land Protection | Ecological Protection | Sustainable Development |
Kappa | 0.8205 | 0.9025 | 0.9042 | 0.8803 | 0.8938 | 0.9058 | 0.9101 | |
OA (%) | 88.39 | 92.57 | 92.70 | 90.28 | 91.91 | 92.82 | 93.15 | |
FoM | 0.3084 | 0.3717 | 0.3739 | 0.3519 | 0.3538 | 0.3811 | 0.3895 | |
GeoSOS- FLUS model | Kappa | 0.8014 | 0.8802 | 0.9089 | 0.8631 | 0.8731 | 0.8967 | 0.9028 |
OA (%) | 86.27 | 91.63 | 91.63 | 83.67 | 90.56 | 90.65 | 91.70 | |
FoM | 0.2864 | 0.3324 | 0.3421 | 0.3124 | 0.3245 | 0.3502 | 0.3564 |
Carbon Emissions (Gt) | 2000 | 2010 | 2020 | |
---|---|---|---|---|
Carbon Source | Cultivated land | 910.08 | 884.47 | 882.51 |
Construction land | 18,364.45 | 31,458.41 | 38,951.63 | |
Total | 19,274.53 | 32,342.87 | 39,834.14 | |
Carbon Sink | Forest | −1493.73 | −1512.71 | −1519.73 |
Grassland | −62.07 | −62.18 | −61.16 | |
Water | −3.55 | −3.88 | −3.95 | |
Barren land | −1.11 | −1.09 | −1.08 | |
Total | −1560.46 | −1579.87 | −1585.92 | |
Net Carbon Emissions | 17,714.06 | 30,763.01 | 38,248.21 |
Development Scenario | 2020 | 2030 | 2040 | 2050 | 2060 |
---|---|---|---|---|---|
Natural development | 38,248.21 | 44,865.38 | 45,272.08 | 46,359.65 | 40,176.34 |
Economic growth | 47,743.51 | 49,129.03 | 48,262.58 | 43,118.40 | |
Contraction control | 44,618.97 | 44,035.37 | 36,441.22 | 28,674.83 | |
Cultivated land protection | 39,347.88 | 37,414.11 | 33,915.83 | 26,757.12 | |
Ecological protection | 36,876.28 | 36,780.85 | 33,800.58 | 26,568.24 | |
Sustainable development | 41,859.07 | 41,526.03 | 38,813.88 | 32,755.43 |
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Zhi, J.; Han, C.; Yan, Q.; Liu, W.; Zhang, L.; Wang, Z.; Fu, X.; Zhao, H. National Multi-Scenario Simulation of Low-Carbon Land Use to Achieve the Carbon-Neutrality Target in China. Earth 2025, 6, 85. https://doi.org/10.3390/earth6030085
Zhi J, Han C, Yan Q, Liu W, Zhang L, Wang Z, Fu X, Zhao H. National Multi-Scenario Simulation of Low-Carbon Land Use to Achieve the Carbon-Neutrality Target in China. Earth. 2025; 6(3):85. https://doi.org/10.3390/earth6030085
Chicago/Turabian StyleZhi, Junjun, Chenxu Han, Qiuchen Yan, Wangbing Liu, Likang Zhang, Zuyuan Wang, Xinwu Fu, and Haoshan Zhao. 2025. "National Multi-Scenario Simulation of Low-Carbon Land Use to Achieve the Carbon-Neutrality Target in China" Earth 6, no. 3: 85. https://doi.org/10.3390/earth6030085
APA StyleZhi, J., Han, C., Yan, Q., Liu, W., Zhang, L., Wang, Z., Fu, X., & Zhao, H. (2025). National Multi-Scenario Simulation of Low-Carbon Land Use to Achieve the Carbon-Neutrality Target in China. Earth, 6(3), 85. https://doi.org/10.3390/earth6030085