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土壤可蚀性(K)值图编制方法的初步研究
引用本文:卜兆宏,李全英.土壤可蚀性(K)值图编制方法的初步研究[J].生态与农村环境学报,1995(1).
作者姓名:卜兆宏  李全英
作者单位:中国科学院南京土壤研究所,河北省张家口市水土保持试验站
摘    要:利用土壤普查图件和剖面理化分析的成果资料编制了土壤可蚀性(K)值图,介绍了求取剖面点K值的查图表法、图斑分并与图斑K值的确定原则和编制程序等,应用上述方法,完成了我国第一张地区级K值图,经分析,与公式算法比,查图表法的K值精度为85.4%,与径流小区实测值比,用K值图上相应K值监测的土壤年流失量的精度为86.0%。

关 键 词:土壤可蚀性(K),查图表法,土壤流失量监测

Preliminary study on the method of soil erodibility value map-ping.
Bu Zhaohong.Preliminary study on the method of soil erodibility value map-ping.[J].Journal of Ecology and Rural Environment,1995(1).
Authors:Bu Zhaohong
Abstract:The mapping method of soil erodibility(K)value using soil survey maps and the physico-chemical proper-ties of soil profiles was described.The method involves soilprofile K value determination by looking up graph and table,the combination and separation of map unit, and mapping pro-gram. First regional wide K value map compiled based on themethod.The accuracy of looking up graph and table method is85.4%,used for monitoring annual soil loss,the accuracy ofK value in map unit is 86.0%compared with the determinedvalue of runoff plot.
Keywords:soil erodibility  looking up graph and tablemethod  soil loss monitoring  
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