| 近年来我国耕地数量的隐性流失研究 |
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| 引用本文： | 张士功,邱建军,唐华俊. 近年来我国耕地数量的隐性流失研究[J]. 科技导报(北京), 2006, 24(2): 73-74 |
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| 作者姓名： | 张士功 邱建军 唐华俊 |
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| 作者单位： | 中国农业科学院农业自然资源与农业区划研究所,北京,100081;中国农业科学院农业自然资源与农业区划研究所,北京,100081;中国农业科学院农业自然资源与农业区划研究所,北京,100081 |
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| 基金项目： | 中国-比利时国际合作项目(2004DIB4J161) |
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| 摘 要： | 耕地作为农业最主要的生产资料和农民最直接的劳动对象,是构成粮食综合生产能力的最基本,也是最重要的要素之一。耕地数量的流失不仅包括耕地绝对数量减少导致的显性流失,还包括耕地整体质量下降导致的隐性流失。用耕地标准系数法系统地研究了1996年以来我国耕地数量的隐性流失情况,并分析了引起耕地数量隐性流失的原因。
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| 关 键 词： | 耕地数量 耕地标准系数 隐性流失 总量动态平衡 |
| 文章编号： | 1000-7857（2006）02-0073-02 |
| 收稿时间： | 2005-09-19 |
| 修稿时间： | 2005-09-19 |
Studies on Recessive Loss of Amount of Cultivated Land in China |
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| ZHANG Shi-gong,QIU Jian-jun,TANG Hua-jun. Studies on Recessive Loss of Amount of Cultivated Land in China[J]. Science & Technology Review, 2006, 24(2): 73-74 |
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| Authors: | ZHANG Shi-gong QIU Jian-jun TANG Hua-jun |
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| Affiliation: | Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China |
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| Abstract: | Being the uppermost productive material and the most direct object for farmers, cultivated land is one of the basic factors consisting of the comprehensive ability of crop production. The loss of the amount of cultivated land includes not only the dominant loss caused by the absolute reduction in quantity, but also the recessive loss caused by the whole quality decrease. The recessive loss of our cultivated land since 1996 was studied by using the standard coefficient method. And the causes for the recessive loss were analyzed as well. |
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| Keywords: | amount of cultivated land standard coefficient of cultivated land recessive loss gross dynamic balance of cultivated land |
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