黄河三角洲地区土壤水蒸发量计算的试验研究  

Testing and Study on Calculation of Soil Moisture Evaporation in Delta Area of the Yellow River

作　　者：邵景力[1] 张德强[1] 李慈君[1] 崔亚莉[1] 张长春[2] 

机构地区：[1]中国地质大学水资源与环境学院,北京100083 [2]清华大学水利系,北京100084

出　　处：《中国水土保持》2004年第3期14-16,共3页Soil and Water Conservation in China

基　　金：国家自然科学基金项目 (40 2 72 1 0 5) ;国家重点基础研究发展规划项目 (G1 9990 4 360 6)

摘　　要：对黄河三角洲地区土壤水蒸发量的计算进行了研究。在研究区典型点裸地、棉花地和芦苇地设立了 3个试验点 ,并利用陶管负压计TDR等仪器 ,获取各试验点不同深度土壤的土水势和含水量 ,应用定位通量法计算土壤水蒸发量。结果表明 ,观测期 ( 2 0 0 2年 9月 )棉花地蒸发量为 85 4mm ,裸地为 60 6mm ,芦苇地为 49 0 4mm。The paper studies on the calculation of evaporation of soil moisture in the delta area of the Yellow River. It sets up 3 pilot areas for exposed land, cotton field and reed field in the typical area of studied region. It obtains soil and water conditions and moisture content of soil at different depth of each pilot area by using TDR pottery pipe negative pressure meter and calculates the evaporation of soil moisture by applying positioning flux method. The result shows that the evaporation of cotton field is 85.4 mm, exposed land 60.6 mm and reed field 49.04 mm in the period of observation (September 2002). The paper analyzes the causes why reed field has the minimum evaporation.

关 键 词：蒸发 土壤水 负压计 定位通量法 

分 类 号：S152.7[农业科学—土壤学]