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Position: Home > Articles > The Reference Land Unit Method on Agricultural Land Classification at Province Level——A case in Chongqing,China Chinese Journal of Soil Science 2007,38 (2) 209-214

省级农用地样地法分等研究——以重庆市为例

作  者:
王玥;陈善军;朱德举;熊川铭;罗卓
单  位:
重庆市土地勘测院;中国农业大学土地资源管理系
关键词:
农用地分等;样地法;标准样地;土地剖面
摘  要:
本文设计了省级样地法分等方案,其核心是分等单元自然质量分的计算,特点在于“土地剖面”的构建。应用该方法对重庆市农用地分等的五个试点区县进行了等别划分,共将研究区划分十二个等别。利用1034个调查样点单元的标准粮产量(y)及与之对应的自然质量分(x)进行线性拟合,判定系数R2=0.67。结果表明,样地法分等结果较好的反映了农用地的作物生产水平,该方法可以应用到其它同类区域。
译  名:
The Reference Land Unit Method on Agricultural Land Classification at Province Level——A case in Chongqing,China
作  者:
WANG Yue1,HUANG Qiang2,ZHU De-ju1,ZHANG Xiao-cheng2,CHEN Shan-jun2 (1.Department of Land Resources Management,China Agricultural University,Beijing 10094,China;2.Chongqing institute of surveying and planning,Chongqing 400015,China)
关键词:
Agricultural land classification;Reference land unit method;Reference land unit;Land profilee
摘  要:
This paper was designed to test the reference land unit method for agricultural land classification at province level.The approach is based on comparing the characteristics of agricultural land classification unit with the reference land unit in an area.The application of the method was carried out in five counties of Chongqing.These regions were classified from gradeⅠto grade Ⅻ.The linear estimation model between production quantity and the corresponding quality ratings of 1034 sites shows that the coefficient of determination R2 is 0.67,which means that 67% of the change of y is explained by the change of x.We suggest that the reference land unit method could be used in the similar regions,so we provide a reference method or model for other provinces in China.

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