摘要
通过对北方农牧交错带不同地区不同土地利用方式下的不同深度土壤水分含量进行分析,得出以下几点初步结论:土壤水分含量的空间差异显著,各采样点不同土地利用方式下土壤水分含量相差较大,但在具体表现上不尽相同;同一地区,不同土地利用方式下的土壤含水量变化明显;同一地区,同一土地利用方式下,不同深度的土壤含水量变化幅度较小,但仍体现出上层偏小,下层偏大的特点。降水、蒸发、土地利用方式、土壤质地、海拔高度、坡度、人类活动等因素是影响不同采样点土壤含水量变化的主要原因。
Topsoil moisture content of different depth in different land use in transitional zone of pastures and farm lands in north China was analyzed, several elementary conclusions were obtained as follows： firstly, there are distinct space difference of topsoil moisture content in different sampling sites, however, there is a various representation. Secondly, the difference of topsoil moisture content is obvious in different land use of a special site. Thirdly, the change of topsoil moisture content in different depth in same land use is small in a special area. Fourthly, as a whole, the soil moisture content in up - layer is lower than of it in down - layer. Finally, the different soil moisture content is influened mainly by rainfall, evaporation, land use, soil texture, altitude, slope, human activities, and so on.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2009年第9期118-122,共5页
Journal of Arid Land Resources and Environment
基金
国家科技支撑计划(2006BAD09B05)资助
关键词
农牧交错带
土地利用方式
表层土壤含水量
the transitional zone of pastures and farm lands
land use
topsoil moisture content
