应用生态学报2013，Vol.24Issue(3)：653-658,6.
沙坡头地区吸湿凝结水对生物土壤结皮的生态作用
Ecological effect of hygroscopic and condensate water on biological soil crusts in Shapotou region of China
摘要
Abstract
By the method of field experiment combined with laboratory analysis, this paper studied the ecological significance of hygroscopic and condensate water on the biological soil crusts in the vegetation sand-fixing area in Shapotou region of China.In the study area, 90% of hygroscopic and condensate water was within the 3 cm soil depth, which didn' t affect the surface soil water content.The hygroscopic and condensate water generated at night involved in the exchange process of soil surface water and atmosphere water vapor, made up the loss of soil water due to the evaporation during the day, and made the surface soil water not reduced rapidly.The amount of the generated hygroscopic and condensate water had a positive correlation with the chlorophyll content of biological soil crusts, indicating that the hygroscopic and condensate water could improve the growth activity of the biological soil crusts, and thus, benefit the biomass accumulation of the crusts.关键词
吸湿凝结水/生物土壤结皮/生物量/水分含量/沙坡头Key words
hygroscopic and condensate water/ biological soil crust/ biomass/ water content/ Shapotou分类
农业科技引用本文复制引用
潘颜霞,王新平,张亚峰,虎瑞..沙坡头地区吸湿凝结水对生物土壤结皮的生态作用[J].应用生态学报,2013,24(3):653-658,6.基金项目
国家自然科学基金项目(41201085)、中国科学院"百人计划"项目"固沙植被系统生态水文学研究"和中国科学院寒区旱区环境与工程研究所人才基金项目(Y184A21001)资助. （41201085）
