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[1]SONG Wei,CHEN Bai-ming,ZHANG Ying.Discussion on Warning System of Cultivated Land Resources Security in China[J].Research of Soil and Water Conservation,2013,20(06):192-196.

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Discussion on Warning System of Cultivated Land Resources Security in China

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 20 Number of periods: 2013 06 Page number: 192-196 Column: Public date: 2013-12-28

Title:: Discussion on Warning System of Cultivated Land Resources Security in China

Author(s):: SONG Wei¹, CHEN Bai-ming¹, ZHANG Ying^1,2; 1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
2. University of Chinese of Academy of Sciences, Beijing 100049, China

Keywords:: land administration; cultivated land resources security; monitoring; evaluating; warning

CLC:: F301.21

DOI:: -

Abstract:: This paper aims to design and establish the Warning System of Cultivated Land Resources Security (WSCLRS) in China. This research will be benefit for drawing up the specifications of WSCLRS and rationally conserving and using cultivated land. WSCLRS includes three components: monitoring system, evaluating system and warning system. Nine indexes were selected to monitor, evaluate and early warn the cultivated land resources security, i.e. the difference between actual area and inventory area of cultivated land, lost rate of cultivated land, lost rate of prime cultivated land, natural quality grade of cultivated land, structural quality of cultivated land, degraded proportion of cultivated land, application quantity of chemical fertilizer, agricultural chemical pesticide and mulching film, contaminated proportion by heavy metal of cultivated land and runoff and sediment ratio of cultivated land. The monitor period of the 9 indexes ranges from 1 to 10 years. Model of short board effect was recommended to early warn the synthetically cultivated land resources security. It is noted that cooperation of different administrative departments is necessary when establishing WSCLRS.

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