安徽农业科学2009，Vol.37Issue(20)：9598-9602,5.
桂林会仙实验基地石灰土剖面化学组成分布的研究
Research on Vertical Distribution of Chemical Composition in Lime Soil Profile in Huixian,Guilin
摘要
Abstract
Limestone weathered into soil slowly in karst region in the southwest.The lime soil is thin and its difference of physical and chemical properties is not obvious.The lime soil is sensitive to the environment changes under the karstification.So soil water should be analyzed as well as lime soil in the study on lime profile.In order to understand the distribution characteristics of chemical composition in lime soil and soil water,and get the information they provided,two typical karst landform,karst depression and hillslope,were choose as study objects,and two soil profiles were established on them.The results showed that coefficient of variation chemical composition in soil water were much higher than soil; soil water could be affected by the environmental factors which are changeable significantly,like karstification,precipitation,etc;both in soil and soil water,content of Ca and Mg on depression was lower than hillslope,meanwhile,content of K、Na、Fe、Zn、Mn、Cu and B on depression was higher than hillslope.This indicated that the distribution of elements in soil and the soil water of the same feature as a whole,because of long-term eluviation.关键词
石灰土剖面/化学组成/土壤水/变异系数Key words
Lime soil profiles/ Chemical composition/ Soil water/ Variation coefficient分类
交通工程引用本文复制引用
吴华英,蒋忠诚,罗为群,覃星铭,邓艳,祁晓凡..桂林会仙实验基地石灰土剖面化学组成分布的研究[J].安徽农业科学,2009,37(20):9598-9602,5.基金项目
国家"十一五"科技支撑计划课题(2006BAC01A10) （2006BAC01A10）
岩溶地质研究所所控项目(200708) （200708）
岩溶地质研究所所控项目(200707). （200707）
