Emergy-based indicators of the environmental impacts and driving forces of non-point source pollution from crop production in China

Sustainable crop production is a significant challenge in China. To achieve this goal, it is necessary to evaluate environmental impacts related to the sustainable development of crop production by integrating scientific and practical indicators. Therefore, this study employed emergy and index decom...

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Autores principales:	Zuoxi Liu, Shanshan Wang, Bing Xue, Rundong Li, Yong Geng, Tianhua Yang, Yanlong Li, Huijuan Dong, Zhihong Luo, Weikun Tao, Jiaming Gu, Yongyang Wang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Crop Production Emergy Sustainability Logarithmic mean divisia index China Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/03cac98686eb4e30b3ddc034d7041f98
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spelling	oai:doaj.org-article:03cac98686eb4e30b3ddc034d7041f982021-12-01T04:32:43ZEmergy-based indicators of the environmental impacts and driving forces of non-point source pollution from crop production in China1470-160X10.1016/j.ecolind.2020.107023https://doaj.org/article/03cac98686eb4e30b3ddc034d7041f982021-02-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20309626https://doaj.org/toc/1470-160XSustainable crop production is a significant challenge in China. To achieve this goal, it is necessary to evaluate environmental impacts related to the sustainable development of crop production by integrating scientific and practical indicators. Therefore, this study employed emergy and index decomposition analysis approaches to assess the environmental impacts of non-point source pollution and the overall performance of crop production in China’s 31 provinces. First, the emergy flow of emission impacts and two new indicators, the emergy sustainability index and the emergy-based pollutant-producing coefficient, were proposed to comprehensively measure crop production performance from 2012 to 2015. The results demonstrated that the environmental impacts of non-point source pollution (EIN) were predominantly attributed to total nitrogen and phosphorus contents and mulching film residuals, which substantially increased the total emergy used and reduced the sustainability of crop production in each province. The ratio of EIN plus purchased resources (F) to total emergy used (U) were consistently greater than 80% in all 31 provinces, while the ratio of local resources including the emergy of local renewable (R) and non-renewable resources (N) to the total emergy was relatively small, accounting for less than 20% in all provinces. Then, a logarithmic mean Divisia index decomposition method was applied to identify the key driving forces influencing the evolution of EIN. The decomposition analysis indicated that the economy factor had a major promoting effect on EIN growth in all provinces except Beijing and Shanghai. Intensity and technology factors had a limiting effect on EIN growth. These findings provide valuable insights for developing appropriate crop production policies that consider local conditions.Zuoxi LiuShanshan WangBing XueRundong LiYong GengTianhua YangYanlong LiHuijuan DongZhihong LuoWeikun TaoJiaming GuYongyang WangElsevierarticleCrop ProductionEmergySustainabilityLogarithmic mean divisia indexChinaEcologyQH540-549.5ENEcological Indicators, Vol 121, Iss , Pp 107023- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Crop Production Emergy Sustainability Logarithmic mean divisia index China Ecology QH540-549.5
spellingShingle	Crop Production Emergy Sustainability Logarithmic mean divisia index China Ecology QH540-549.5 Zuoxi Liu Shanshan Wang Bing Xue Rundong Li Yong Geng Tianhua Yang Yanlong Li Huijuan Dong Zhihong Luo Weikun Tao Jiaming Gu Yongyang Wang Emergy-based indicators of the environmental impacts and driving forces of non-point source pollution from crop production in China
description	Sustainable crop production is a significant challenge in China. To achieve this goal, it is necessary to evaluate environmental impacts related to the sustainable development of crop production by integrating scientific and practical indicators. Therefore, this study employed emergy and index decomposition analysis approaches to assess the environmental impacts of non-point source pollution and the overall performance of crop production in China’s 31 provinces. First, the emergy flow of emission impacts and two new indicators, the emergy sustainability index and the emergy-based pollutant-producing coefficient, were proposed to comprehensively measure crop production performance from 2012 to 2015. The results demonstrated that the environmental impacts of non-point source pollution (EIN) were predominantly attributed to total nitrogen and phosphorus contents and mulching film residuals, which substantially increased the total emergy used and reduced the sustainability of crop production in each province. The ratio of EIN plus purchased resources (F) to total emergy used (U) were consistently greater than 80% in all 31 provinces, while the ratio of local resources including the emergy of local renewable (R) and non-renewable resources (N) to the total emergy was relatively small, accounting for less than 20% in all provinces. Then, a logarithmic mean Divisia index decomposition method was applied to identify the key driving forces influencing the evolution of EIN. The decomposition analysis indicated that the economy factor had a major promoting effect on EIN growth in all provinces except Beijing and Shanghai. Intensity and technology factors had a limiting effect on EIN growth. These findings provide valuable insights for developing appropriate crop production policies that consider local conditions.
format	article
author	Zuoxi Liu Shanshan Wang Bing Xue Rundong Li Yong Geng Tianhua Yang Yanlong Li Huijuan Dong Zhihong Luo Weikun Tao Jiaming Gu Yongyang Wang
author_facet	Zuoxi Liu Shanshan Wang Bing Xue Rundong Li Yong Geng Tianhua Yang Yanlong Li Huijuan Dong Zhihong Luo Weikun Tao Jiaming Gu Yongyang Wang
author_sort	Zuoxi Liu
title	Emergy-based indicators of the environmental impacts and driving forces of non-point source pollution from crop production in China
title_short	Emergy-based indicators of the environmental impacts and driving forces of non-point source pollution from crop production in China
title_full	Emergy-based indicators of the environmental impacts and driving forces of non-point source pollution from crop production in China
title_fullStr	Emergy-based indicators of the environmental impacts and driving forces of non-point source pollution from crop production in China
title_full_unstemmed	Emergy-based indicators of the environmental impacts and driving forces of non-point source pollution from crop production in China
title_sort	emergy-based indicators of the environmental impacts and driving forces of non-point source pollution from crop production in china
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/03cac98686eb4e30b3ddc034d7041f98
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_version_	1718405822953816064

Emergy-based indicators of the environmental impacts and driving forces of non-point source pollution from crop production in China

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