Department of Accounting, Business School, Jianghan University, Wuhan, 430056, People's Republic of China.
Manufacturing Industry Development Research Center on Wuhan City Circle, Business School, Jianghan University, Wuhan, 430056, People's Republic of China.
Environ Sci Pollut Res Int. 2021 Oct;28(37):51453-51470. doi: 10.1007/s11356-021-14294-7. Epub 2021 May 13.
Excessive delivery of agricultural chemicals seriously threatens the ecology and environment of agricultural areas and restricts the sustainable development of agriculture. The analysis of agrochemical Environmental Kuznets Curve (EKC) adopting spatial econometric tools is limited. Therefore, this study adopted the spatial panel regression approach to analyze the agricultural chemicals EKC Three Gorges Reservoir Region (TGRR). The results show that (1) both EKC curves of chemical fertilizer and pesticide of the TGRR are inverted U-shaped, and there are 53.8% and 42.3% of the counties/districts did not meet the inflection point of the EKC as regards to chemical fertilizer and pesticide. (2) The EKC of agricultural chemicals of the TGRR are stable, and the variables such as cultivated area and the urban-rural income disparity have impact on the occurrence of the inflection point of EKC. (3) There is the spatial "imitation and convergence" of agricultural chemicals among the counties in the TGRR. The findings indicate that the ecological and environmental situations of agriculture in the TGRR need urgent attention. Countermeasures aiming to alleviate the contradiction between ecological and economic development should be put forward.
过度施用农用化学品严重威胁农业区的生态和环境，制约农业的可持续发展。采用空间计量经济学工具分析农用化学品环境库兹涅茨曲线（EKC）的研究较少。因此，本研究采用空间面板回归方法分析三峡库区（TGRR）的农用化学品 EKC。结果表明：（1）TGRR 的化肥和农药 EKC 曲线均为倒 U 型，化肥和农药 EKC 的拐点分别有 53.8%和 42.3%的县区未达到；（2）TGRR 农用化学品 EKC 是稳定的，耕地面积和城乡收入差距等变量对 EKC 拐点的出现有影响；（3）TGRR 县区之间存在农用化学品的空间“模仿和趋同”。研究结果表明，TGRR 农业的生态和环境状况需要引起紧急关注。应提出缓解生态与经济发展之间矛盾的对策。
