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长沙市东郊不同母质发育耕型红壤的可蚀性因子K值估算
引用本文:谢红霞,陈琼,李锦龙,邓旭仁,王翠红,王开运.长沙市东郊不同母质发育耕型红壤的可蚀性因子K值估算[J].水土保持通报,2012,32(3):133-135,159.
作者姓名:谢红霞  陈琼  李锦龙  邓旭仁  王翠红  王开运
作者单位:湖南农业大学资源环境学院,湖南长沙,410128
基金项目:水利部公益性行业科研专项“红壤侵蚀区坡面水土流失综合整治的监测与评价”(200901049);湖南农业大学研究性学习与创新性实验计划项目(XCX1028)
摘    要:采集了长沙市东郊第四纪红土和花岗岩风化物两种母质发育的耕型红壤样品,通过室内分析获得了土壤的颗粒组成和土壤有机质含量。利用诺谟图法、修正诺谟图法、EPIC模型、几何平均粒径模型和Torri模型分别估算了两种母质发育红壤的可蚀性因子K值,并将估算结果与江西省鹰潭市中国科学院红壤生态试验站通过自然降雨实测方法获得的K值进行了比较。结果显示,Torri模型和几何平均粒径模型比较适合估算长沙市东郊第四纪红土发育红壤的可蚀性K值,Torri模型、几何平均粒径模型和EPIC模型比较适合估算长沙市东郊花岗岩风化物发育红壤的可蚀性K值。

关 键 词:母质类型  耕型红壤  土壤可蚀性K值  长沙市东郊
收稿时间:2011/9/23 0:00:00
修稿时间:2011/10/25 0:00:00

Calculation of Soil Erodibility Factor K Value of Cultivated Red Soils Developed from Two Different Parent Materials in Eastern Suburb of Changsha City
XIE Hong-xi,CHEN Qiong,LI Jin-long,DENG Xu-ren,WANG Cui-hong and WANG Kai-yun.Calculation of Soil Erodibility Factor K Value of Cultivated Red Soils Developed from Two Different Parent Materials in Eastern Suburb of Changsha City[J].Bulletin of Soil and Water Conservation,2012,32(3):133-135,159.
Authors:XIE Hong-xi  CHEN Qiong  LI Jin-long  DENG Xu-ren  WANG Cui-hong and WANG Kai-yun
Institution:(College of Resources and Environment Science,Hu′nan Agricultural University,Changsha,Hu′nan 410128,China)
Abstract:Soil samples of two cultivated red soils developed from weathered parent materials of quaternary red earth and granite were collected in eastern suburbs of Changsha City.Soil particle composition and soil organic matter were obtained by means of laboratory analysis.Then,soil erodibility factor K value was calculated using Nomogragh model,modified Nomogragh model,EPIC model,geometric mean particle model and Torri model.Finally,the calculated soil erodibility value was compared with the measured soil erodibility factor K value by the Red Soil Ecological Experimental Station of the Chinese Academy of Science in Jiangxi Province.Results showed that Torri model and geometric mean particle model are more suitable for calculating the K value of red soils developed from quaternary red earth in the eastern suburb of Changsha City,whereas EPIC model,geometric mean particle model and Torri model are suitable for calculating the K value of red soils developed from weathered granite materials.
Keywords:parent materials type  cultivated red soil  soil erodibility factor K value  the eastern suburb of Changsha City
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