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| 考虑面源污染的河南省农业生态系统能值评价 |
| Emergy evaluation of agricultural ecosystem in Henan province considering non-point source pollution |
| 投稿时间：2019-11-04 修订日期：2020-02-06 |
| DOI： |
| 中文关键词: 面源污染 农业生态系统 能值评价 河南省 内部损耗率 |
| 英文关键词: non-point source pollution agro-ecosystem emergy evaluation Henan province internal loss rate |
| 基金项目:国家自然科学基金(51609216)、河南省自然科学基金(182300410139)Funds: National Natural Science Foundation of China (51609216)、Natural Science Foundation of Henan Province (182300410139) |
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| 中文摘要: |
| 采用生态经济学能值分析方法,基于2011-2016年社会经济统计数据,对河南省农业生态系统进行了动态评价。考虑到河南省农业化程度高,农业面源污染问题突出的特点,在常规环境负载率、净能值产出率和可持续发展指数三个农业生态系统能值评价指标的基础上,考虑农业面源污染的负产出,提出内部损耗率指标,对农业生态系统的污染状况进行定量评价。结果表明,2011-2016年间河南省农业生态系统能值可持续发展指数介于较好的水平,说明河南省农业生态系统整体可持续发展状态保持良好,但系统发展对不可更新资源的依赖性较强,内部损耗率指标虽呈下降趋势,但仍超过40%。因此,河南省应继续实施化肥农药的减施增效,保障农业生态系统的稳步可持续发展。 |
| 英文摘要: |
| The eco-economic emergy value analysis method was used to dynamic evaluate the agricultural ecosystem of Henan province based on the socio-economic statistics of 2011-2016. Considering the high degree of agriculturalization in Henan Province and the prominent characteristics of agricultural non-point source pollution, on the basis of the three indicators of the agro-ecosystem emergy value of conventional environmental load rate, net emergy yield rate and sustainable development index, consider The negative output of agricultural non-point source pollution, the Internal loss rate (ILR) index is proposed to quantitatively evaluate the pollution status of agro-ecosystem. The results show that the sustainable development index of agricultural ecosystems in Henan province between 2011 and 2016 is at a good level, it shows that the overall sustainable development status of agricultural ecosystem in Henan province is good, but the system development has strongly dependence on non-renewable resources, although the internal loss rate indicator shows a downward trend, it still exceeds 40%. Therefore, Henan province should continue to implement the reduction and increase of efficiency of fertilizers and pesticides to ensure the steady and sustainable development of the agricultural ecosystem. |
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