| 不同退耕态势下农地资源生态服务价值评估比较 |
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| 引用本文： | 申强,姜志德,王继军.不同退耕态势下农地资源生态服务价值评估比较[J].农机化研究,2009,31(11). |
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| 作者姓名： | 申强 姜志德 王继军 |
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| 作者单位： | 申强,姜志德(西北农林科技大学,经济管理学院,陕西,杨凌,712100);王继军(中国科学院水利部,水土保持研究所,陕西,杨凌,712100) |
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| 基金项目： | 国家"十一五"科技支撑项目，中科院重大项目，国家自然科学基金项目 |
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| 摘 要： | 针对退耕态势差异较大的陕西省吴起县和米脂县在3个不同退耕阶段农地资源生态服务价值进行评估的基础上,分析了两个区域各阶段农地资源生态服务价值的变化,探讨了在不同退耕态势下退耕还林(草)工程的实施对两个区域农地资源生态服务价值的影响.结果表明:退耕前后两个区域农地资源直接经济价值分别增长了11576.46万元和3754.42万元,间接生态服务价值分别增加了107946.19万元和4624.11万元.两个区域在3个不同阶段直接经济产出价值与间接生态服务价值之比分别为1∶0.84,1∶2.63,1∶3.56和1∶0.41,1∶0.65,1∶0.56.
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| 关 键 词： | 农地资源 态势 退耕还林 生态服务价值 |
Comparison of Ecosystem Services Value of Agricultural Land Resources under Different Retirement of Cultivated Situation |
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| Shen Qiang,Jiang Zhide,Wang Jijun.Comparison of Ecosystem Services Value of Agricultural Land Resources under Different Retirement of Cultivated Situation[J].Journal of Agricultural Mechanization Research,2009,31(11). |
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| Authors: | Shen Qiang Jiang Zhide Wang Jijun |
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| Institution: | Shen Qiang1,Jiang Zhide1,Wang Jijun2 (1.College of Economics and Management,Northwest A&F University,Yangling 712100,China,2.Institute of Soil and Water Conservation,Chinese Academy of Science and Ministry of Water Resources,China) |
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| Abstract: | This paper based on assessing the ecosystem services value of agricultural land resources of Wuqi and Mizhi County in Shaanxi Province which two counties have large difference in retirement of cultivated situation in three different stages of retirement of cultivated,analysed the changes of two regions at each stage of ecosystem services values of the agricultural land resources,discussed the impact of the implementation of converting farmland to forest or grassland to the two regions' ecosystem services va... |
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| Keywords: | agricultural land resources situation converting farmland to forest value of ecosystem services |
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