期刊论文

Wan Qing

英文

地理学报：英文版

1009-637X

2020

30

4

535-552

10.1007/s11442-020-1741-8

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [71947071, 71904151, 71774066]; Hong Kong Research Grant CouncilHong Kong Research Grants Council [ECS27604016]; Self-Determined Research Funds of CCNU from the Colleges' Basic Research and Operation of MOE [CCNU19TD004]

本校为第一机构

In this study, the carbon emissions (CEs) from cultivated land (CL) were included as an undesirable output in the utilization efficiency of such land. A slack-based model was used to calculate the CL use efficiency (CLUE) for 11 provinces and cities in the Yangtze River Economic Belt (YREB) from 2007 to 2016, and then a kernel density estimation map was drawn to analyze the spatiotemporal variations of CLUE. The Tobit model was also employed to analyze the factors affecting the CLUE. The results show the following. 1) In the YREB, the CEs from CL showed a rising and then a slowly decreasing tr...