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％。
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.
出处
《农村生态环境》
CSCD
1995年第1期5-9,共5页
Rural Eco-Environment
基金
国家自然科学基金
关键词
土壤可蚀性
查图表法
土壤流失量
监测
K值
soil erodibility,looking up graph and tablemethod,soil loss monitoring
