Dynamic and Static Analysis of Carbon Emission Efficiency in China’s Transportation Sector
Round 1
Reviewer 1 Report
The presented article is devoted to the analysis of the efficiency of carbon emissions in the transport sector of China. This problem is relevant.
The presented material is devoted to the analysis of statistical data of the transport industry in China.
As a rule, the effectiveness of scientific research is evaluated by the contribution to fundamental science or obtaining the practical significance of research.
In conclusion, the authors vaguely cited the conclusions that are related to the purpose of the study. Namely, the results of the analysis. What are they like? It is not clear from the presented text. In this regard, in the opinion of the reviewer, the authors need to finalize the article in the part that allows them to draw concrete conclusions on identifying factors that affect transport efficiency, indicating the degree of their influence, preferably with a numerical assessment.
As areas of improvement, the automotive industry can be considered, broken down into freight or passenger transportation, rail transport, river transport, and so on.
Author Response
Thanks for your comments. In the conclusion part, we have modified according to the suggestions. First of all, according to the data results and the actual meaning of the parameters obtained in this paper, the corresponding conclusions are obtained, and the data results and conclusions are linked more clearly. We also explain and analyze the specific factors that affect the transportation efficiency, and according to the data results, we get the different degrees of influence of each factor, such as low production efficiency, dynamic change of management efficiency, technological progress and other aspects of a more detailed analysis. As for the final improvement measures, we have also put forward corresponding suggestions in various subsectors of the transport system, including passenger, rail and water.
Reviewer 2 Report
In the era of increasing pollution of the natural environment, and as a consequence of the observed climate changes, any attempts to determine the impact of human activities on the environment should be considered important. Since transport belongs to those areas of the economy where the impact on the environment seems to be the greatest, this assessment is crucial. Therefore, the topic taken up by the authors should be considered important.
For greater readability of the presented data, it would be worthwhile for the authors to compare the data contained in Table 6 on the map. I am aware that it is impossible to introduce everyone. Nevertheless, a comparison of, for example, two maps of data from the first and last year covered by the study would make it easier to observe the changes taking place.
Author Response
Thanks for your comments. According to suggestions, we have adjusted Table 6. Considering the large number of provinces, it is difficult to accurately express the GM index and its decomposition index on a single chart, which may cause the chaotic expression of various indexes on a single chart, and which is not conducive to our comparative analysis. We compared the data of the first year and the last year in the form of a table, and also obtained the characteristics of dynamic changes in the carbon emission productivity of the transportation system. Through the specific analysis of the two years, we find that the change of GM index is obvious and experiences a process from efficiency reduction to increase, which is in line with our actual development situation. We observed the dynamic changes and causes of the dynamic changes, and combined with China's development status for a simple analysis.
