期刊论文

中文

中国生态农业学报(中英文)

2096-6237

2014

22

7

821-827

10.3724/SP.J.1011.2014.31068

国家自然科学基金项目（41371228）资助；

本校为第一机构

探寻县域耕地地力评价与农用地自然质量分等的联系与差异,有助于二者可比衔接。采用叠置法划分评价单元,系统聚类法确定评价的定量指标,特尔菲法筛选影响评价结果的定性指标,层次分析法确定评价指标权重,模糊数学法建立各参评指标与评价级别的关系模型,分别进行了湖南省衡东县县域耕地地力与农用地自然质量等级划分;采用GIS叠加分析法得到等别转移分布,并对等别转移分布规律及原因进行了研究。结果表明:衡东县农用地自然质量前5个级别所占面积比例达91.29%,而耕地地力只有74.37%,总体上耕地地力低于农用地自然质量1个级别;耕地地力和农用地自然质量高、中、低级别面积比例分别为32∶42∶26和33∶...

From comparisons and connections, the relationships and differences between farmland productivity classes and farmland natural quality grades were explored at county scale in this paper. The farmland productivity grades and farmland natural quality grades in Hengdong County were respectively evaluated by dividing evaluation units with overlay methods, determining quantitative indexes with system cluster analysis, choosing qualitative indicators affecting assessment results with Delphi, computing evaluation factor weights with analytic hierarchy...