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Research on the Agriculture Land Abandoning and It's Quantitative Description

HUANG Li-min1,2,ZHANG An-lu1,LIU Cheng-wu2 (1.Department of Land Management,Central China Agriculture University,Wuhan 430070,China;2.Department of Resource & Environment Science,Xianning University,Xianning 437100,China)  
The thing about agriculture land abandoning has happened in China about twenty years,some academicians have studied it case of some place,but them are not very entire.In this paper,we have studied the conception,styles and its quantificational characterization of agriculture land abandoning in this paper.The results show that(1) Agriculture land abandoning includes two states,one is that a agriculture land is abandoned and no one know what time it will be cultivated too,the other one is that a agriculture land is not used sufficiently.(2) Agriculture land abandoning can be differentiated some different styles.(3) The study of quantificational characterization of agriculture land abandoning provides theoretic gist for the study of the grain and economy effect of agriculture land abandoning.
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