摘要
In order to preliminarily look at rules for soil moisture changes in the bank of the gully and to provide some recommendations for vegetative restoration in gully bank regions in the Loess Plateau, changes of soil moisture with depth and distance to the gully edge and their dynamic changes with time were observed to study the soil water characteristics in the bank of the gully. The results showed that soil water content increased with increasing distance from the gully edge, whereas for the same time period, the closer the distance to the gully wall, the greater the water loss; and that the influential distance of side evaporation decreased as depth increased.
In order to preliminarily look at rules for soil moisture changes in the bank of the gully and to provide some recommendations for vegetative restoration in gully bank regions in the Loess Plateau, changes of soil moisture with depth and distance to the gully edge and their dynamic changes with time were observed to study the soil water characteristics in the bank of the gully. The results showed that soil water content increased with increasing distance from the gully edge, whereas for the same time period, the closer the distance to the gully wall, the greater the water loss; and that the influential distance of side evaporation decreased as depth increased.
基金
Project supported by the Hundred Talents Program of the Chinese Academy of Sciences (No. 2004109)the Knowledge Innovation Program of the Institute of Soil and Water Conservation, Chinese Academy of Sciences (No. SW05501)the Innovation Team Program of Northwest A&F University (No. 05CX-1)
关键词
土壤
湿度
蒸发作用
泄水作用
gully bank region, influential distance, side evaporation, soil moisture
