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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 ecosystems in Henan Province considering non-point source pollution |
| 投稿时间：2019-11-04 |
| DOI：10.13254/j.jare.2019.0547 |
| 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, agroecosystem, emergy evaluation, Henan Province, internal loss rate |
| 基金项目:国家自然科学基金项目（51609216）；河南省自然科学基金项目（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。鉴于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0.40。因此，河南省应继续实行化肥农药的减施增效措施，保障农业生态系统的稳步可持续发展。 |
| 英文摘要: |
| The emergy analysis method of ecological economics was used to dynamically evaluate the agricultural ecosystems of Henan Province based on the socio-economic statistics of 2011-2016. Taking into account 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 environmental load rate, net emergy yield rate, and sustainable development index, the internal loss rate (ILR) index was proposed to quantitatively evaluate the pollution status of agroecosystems. The results showed that the overall sustainable development status of agricultural ecosystems in Henan Province was good from 2011 to 2016, but the development was strongly dependent on non-renewable resources. Although the ILR index showed a downward trend, it still exceeded 40%. Therefore, Henan Province should continue to implement the reduction of fertilizers and pesticides to ensure the steady and sustainable development of agricultural ecosystems. |
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