临河和盐池沙层含水量研究  

Study of the Moisture Content in the Sand Layers of Linhe and Yanchi

作　　者：景雅雅 邵天杰 赵景波 Jing Yaya;Shao Tianjie;Zhao Jingbo(College of Geographic Science and Tourism,2.State Key Laboratory of Loess and Quatemary Geology,Shaanxi Nonnal University Xi’an 710062,China;Institute of Earlh Environment,CAS,Xi’an710061,Chin)

机构地区：[1]陕西师范大学地理科学与旅游学院,陕西西安710062 [2]中国科学院地球环境研究所黄土与第四纪地质国家重点实验室,陕西西安710061

出　　处：《环境保护科学》2018年第4期77-82,共6页Environmental Protection Science

基　　金：中国博士后科学基金第59批面上项目(2016M592742);陕西省自然科学基础研究计划(2016JQ4004);国家自然科学基金国际合作项重大项目(41210002);中国科学院黄土与第四纪地质国家重点实验室项目(SKLLQG1428)资助

摘　　要：文章采用烘干称重法,对临河与盐池两地沙层含水量进行研究,以求为两地水资源的合理利用、沙地防风固沙和当地农牧业的发展等提供借鉴。研究发现,临河和盐池两地的沙地平均含水量都在3%左右,并且两地沙层在深度0.5 m以下都有含水量大于5%的重力水,经过消耗还存在向下运移的水分。这表明研究地区沙层水分为正平衡,沙层中的水分来自于大气降水。因此两地适于营造耐旱、需水少的防风固沙灌木林。In this paper,drying weight method is used to study the water content of the sandy soils in the areas of Linhe and Yanchi so as to provide reference for the rational utilization of water resource in the two places,wind prevention and sand fixation,and local agricultural and husbandry development. The results show that the average water content of sandy land in the two places is about 3%,and there is more than 5% of the gravity water in the sand layers under the depth of 0. 5 m of the two places,with a downward movement of water after consumption. This indicates that water in the study areas is in a positive equilibrium and that the moisture in the sand is from the atmospheric precipitation. Therefore,both sides are suitable to create drought-resistant,water-less wind-sand-fixing shrubs.

关 键 词：临河与盐池 沙层含水量 水分来源 水分存在形式 水分平衡 

分 类 号：X171.3[环境科学与工程—环境科学] S152.7[农业科学—土壤学]