• 责任者：Zhao Jingbo (College of Tourism and Environment ; Shaanxi Normal University ; Xi’an 710062 ; China) ; Hou Yule
• 刊名：Scientia Geographica Sinica
• 出版年：2011
• 卷期：31(4)
• 关键词：土壤水 ; soil water ; 生态环境 ; ecological environment ; 青海湖 ; Qinghai Lake
• 页码：p.394-400
• 图表：4 illus., 1 table, 15 refs.
• 分类号：1800
• issnNo：ISSN1000-0690
• isbnNo：CN22-1124/P

According to the analysis on soil moisture and particle size of the grass land at Jiermeng in Gangcha, the soil moisture content and its impacts on vegetation development were studied. The grain size composition of the middle and upper part of soil in the study area is mainly coarse silt, and at the lower part of soil is mainly fine sand. Soil moisture content in grassland appeared more gravity water in 2009 in this region, and the depth of gravity water in the grass land was up to about 60 cm. Soil moisture is rich in the upper layers and seriously short in the lower. Moderate dried layers with the soil moisture lower than 9% and some serious dried layers with the soil moisture lower than 6% occurred under the soil profiles with the depth of about 80 cm. The development of dried soil layer at this region is due to less precipitation, which held up precipitation infiltrating into the deeper area under ground, so precipitation is generally not the supply source of groundwater.