桂林毛村岩溶区与非岩溶区几种果树土壤溶解有机碳空间变化  

Changes of Dissolved Organic Carbon in Soil of Castanea mollissima,Ginkgo biloba and Prunus persica between Karst and Non-Karst Area,Maocun,Guilin

作　　者：申宏岗[1,2] 曹建华[1] 潘根兴[2] 夏青[1] 赵仕花[1] 

机构地区：[1]中国地质科学院岩溶地质研究所,国土资源部岩溶动力学开放实验室,广西桂林541004 [2]南京农业大学资源环境学院,江苏南京210095

出　　处：《土壤通报》2007年第5期878-881,共4页Chinese Journal of Soil Science

基　　金：国家自然科学基金(40372116);广西科学研究与技术开发计划项目"桂科能05112001-8A;桂科能063006-5H"

摘　　要：土壤溶解有机碳是当前环境学的研究热点之一。从土壤溶解有机碳的空间变化的角度出发,研究了果树在岩溶区与非岩溶区土壤溶解有机碳的表现。结果表明,不同区域、不同树种、不同取样深度的土壤溶解有机碳的含量均不同,非岩溶区、20cm的土壤溶解有机碳含量较岩溶区、50cm为高,不同树种在不同区域不同深度有不同的表现。低pH对应较高的土壤溶解有机碳含量。Dissolved organic carbon （DOC） in soil is one of the present research focuses. DOC was response to the different fruit trees in Karst and non-Karst area. the results showed the contents of soil DOC were different in different areas, trees and depth of soil.The contents of DOC in depth of 0-20cm in non-Karst area were higher than that in Karst area, whereas different in the depth of 20-50cm. Lower pH had made DOC increased in soils.

关 键 词：土壤溶解有机碳 果树 岩溶区与非岩溶区 

分 类 号：X14[环境科学与工程—环境科学]