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	Cultivated land conversion and potential agricultural productivity in China
	Deng X. Z. ; Huang J. K. ; Rozelle S. ; Uchida E.
	2006
关键词	cultivated land land use changes potential agricultural productivity China spatial-pattern asia model food population landscape demand future
英文摘要	In China there is a growing debate on the role of cultivated land conversion on food security. This paper uses satellite images to examine the changes of the area of cultivated land and its potential agricultural productivity in China. We find that between 1986 and 2000 China recorded a net increase of cultivated land (+1.9%), which almost offset the decrease in average potential productivity, or bioproductivity (-2.2%). Therefore, we conclude that conversion of cultivated land has not hurt China's national food security. We also argue that more recent change in cultivated area likely has had little adverse effect on food security. (c) 2005 Elsevier Ltd. All rights reserved.
出处	Land Use Policy
卷	23
期	4
页	372-384
收录类别	SCI
语种	英语
ISSN号	0264-8377
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/24147]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Deng X. Z.,Huang J. K.,Rozelle S.,et al. Cultivated land conversion and potential agricultural productivity in China. 2006.

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