| 控制中国非点源污染的生物经济学战略 |
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| 引用本文： | WEI Yong-Ping,CHEN De-Li,B. DAVIDSON,R. E. WHITE. 控制中国非点源污染的生物经济学战略[J]. 土壤圈, 2005, 15(2): 156-163 |
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| 作者姓名： | WEI Yong-Ping CHEN De-Li B. DAVIDSON R. E. WHITE |
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| 作者单位： | InstituteofLandandFoodResources,TheUniversityofMelbourne,Parkville,Victoria3010（Australia） |
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| 基金项目： | *1Project supported by the Canadian International Development Agency, Canada and the Chinese Academy of Sciences, China (No.KZCX2-413). |
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| 摘 要： | While non-point pollution from agriculture has become an increasingly serious problem in China, some progress has been made in studying the causal biophysical processes. However, few studies have assessed the economic consequences of non-point pollution in China or the policy options that could be employed to combat it. In this work a sustainable strategy to control non-point pollution from crop production, which involved taxing excessive inputs of irrigation water and fertilizer, was proposed. The approach taken to assess these measures combined biophysical and economic models,having a trade-off between economic returns and an improved environment. A proven and practical spatially referenced water and nutrient management model was used to determine the quantities of excessive irrigation water and fertilizer for specific soil and land use. Also, a set of indicators were proposed for evaluating the effects of agricultural economic output and agricultural practices on the environment.
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| 关 键 词： | 非点污染 农作物种植 生态物理-经济模型 政策调节 可持续发展 |
Bio-economic strategy to combat non-point pollution in China |
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| WEI Yong-Ping,CHEN De-Li,B. DAVIDSON and R. E. WHITE. Bio-economic strategy to combat non-point pollution in China[J]. Pedosphere, 2005, 15(2): 156-163 |
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| Authors: | WEI Yong-Ping CHEN De-Li B. DAVIDSON R. E. WHITE |
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| Affiliation: | Institute of Land and Food Resources, The University of Melbourne, Parkville, Victoria 3010 (Australia). E-mail: delichen@unimelb.edu.cn;Institute of Land and Food Resources, The University of Melbourne, Parkville, Victoria 3010 (Australia). E-mail: delichen@unimelb.edu.cn;Institute of Land and Food Resources, The University of Melbourne, Parkville, Victoria 3010 (Australia). E-mail: delichen@unimelb.edu.cn;Institute of Land and Food Resources, The University of Melbourne, Parkville, Victoria 3010 (Australia). E-mail: delichen@unimelb.edu.cn |
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| Abstract: | While non-point pollution from agriculture has become an increasingly serious problem in China, some progress has been made in studying the causal biophysical processes. However, few studies have assessed the economic consequences of non-point pollution in China or the policy options that could be employed to combat it. In this work a sustainable strategy to control non-point pollution from crop production, which involved taxing excessive inputs of irrigation water and fertilizer, was proposed. The approach taken to assess these measures combined biophysical and economic models,having a trade-off between economic returns and an improved environment. A proven and practical spatially referenced water and nutrient management model was used to determine the quantities of excessive irrigation water and fertilizer for specific soil and land use. Also, a set of indicators were proposed for evaluating the effects of agricultural economic output and agricultural practices on the environment. |
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| Keywords: | crop production integrated biophysical-economic model non-point pollution policy instrument sustainable strategy |
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