水土保持学报2012，Vol.26Issue(4)：108-112,5.
荒漠草原区固沙人工柠条林生长过程中土壤性质演变规律
Soil Properties Following Growing Process of Artificial Forests（Caragana microphylla） in Desert Steppe
摘要
Abstract
The soil properties during the growing process of artificial forest（C, microphylla） were a valuable indicator for soil quality and rational management of desert steppe. The soil mechanical composition, nutrient, pH and electrical conductivity, together with soil temperature and moisture, were measured by field sample and indoor analysis in desert steppe. The results showed that the soil coarse sand and fine sand content increased significantly with marked decrease in soil very fine sand content from 6 to 15 years of C. rnicrophylla forests （P~0.05）. But the significant decrease in soil coarse and fine sand content, and the significant increase in soil very fine sand and silt clay content were found beginning from of 24-year forests（P~0.05）. At the same time, the soil organic carbon, total N and total P, together with soil electrical conductivity and moisture were all significantly enhanced（P〈0.05）, with the marked decrease in soil pH and temperature（P〈0.05）. The cumulative content of soil total nitrogen was higher than that of soil organic carbon, and soil C/N tended to decrease following growing process of these artificial forests. It was suggested that the growing process of C. microphylla forests could facilitate the improvement of soil fertility and microhabitat, and it needed a long time.关键词
荒漠草原/柠条林/生长过程/土壤性质Key words
desert steppe/C. microphylla forest/growing process/soil property分类
农业科技引用本文复制引用
刘任涛,杨新国,宋乃平,柴永青,王磊,朱凡..荒漠草原区固沙人工柠条林生长过程中土壤性质演变规律[J].水土保持学报,2012,26(4):108-112,5.基金项目
国家科技支撑计划项目 （）
国家自然科学基金项目 （）
宁夏高等学校科学研究项目 （）
