南亚热带丘陵土壤水分循环及其有效性研究  

Cycling and availability of soil water in the hilly area of Southen Subtropical zone

作　　者：骆伯胜[1] 张秉刚[1] 郭庆荣[1] 钟继洪[1] 谭军[1] 黄湘兰[1] 

机构地区：[1]广东省生态环境与土壤研究所,广东广州510650

出　　处：《土壤通报》2000年第2期58-62,共5页Chinese Journal of Soil Science

基　　金：国家自然科学基金!( 4 93 710 3 5 )

摘　　要：根据对丘陵缓坡地和低丘梯地的系统观测资料 ,阐明了赤红壤贮水库容、有效贮水库容较小 ,而通透库容较大 ;降雨集中 ,地表径流明显 ;赤红壤贮水量季节性变化明显 ,有效贮水量低等特征 ;同时对SPAC连续体系中的水分势能和水流阻力的分布规律进行了分析 .According to systematic observation on hilly slope land and olw hilly terraces,we found that the total and available water pools of latosol were both small,while the permeable water pool was large.Therefore,soil surface runoff was considerable.We also analyzed water potential and the distribution of water flow resistance in consecutive SPAC systems.

关 键 词：丘陵赤红壤 土壤水分循环 有效性 SPAC 水土流失 

分 类 号：S152.7[农业科学—土壤学] S157.1[农业科学—农业基础科学]