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半干旱沙地3种土壤水分测定方法对比研究
引用本文:张军红,吴波,杨文斌,崔利强.半干旱沙地3种土壤水分测定方法对比研究[J].水土保持通报,2012,32(2):147-149.
作者姓名:张军红  吴波  杨文斌  崔利强
作者单位:1. 中国林业科学研究院荒漠化研究所国家林业局林木培育重点实验室,北京,100091
2. 内蒙古农业大学生态环境学院,内蒙古呼和浩特,010019
基金项目:国家林业局林业公益性行业科研专项“荒漠生态系统对全球变化的响应与适应策略”(201104077);中国林业科学研究院中央公益性科研院所基本科研业务费专项资金重点项目“干旱区荒漠植物与生态系统对脉冲式降雨的响应”(CAFYBB2007008)
摘    要:土壤水分是影响干旱、半干旱地区植物生长和发育的重要因素。分别采用烘干法、TDR法(时域反射计)和EC-5法这3种方法对毛乌素沙地土壤水分进行了观测。结果表明,3种方法测得的各层土壤含水率之间均无显著差异;3种方法测得结果彼此间相关性显著;EC-5在观测低含水率土壤水分中具有与烘干法和TDR法相当的效果。EC-5土壤水分传感器在组建自动化、网络化土壤监测系统中具有优势。

关 键 词:毛乌素沙地  土壤水分  测定
收稿时间:5/6/2011 12:00:00 AM
修稿时间:2011/6/23 0:00:00

Comparative Study on Three Measures of Soil Moisture Determination in Semi-arid Sandy Land
ZHANG Jun-hong,WU Bo,YANG Wen-bin and CUI Li-qiang.Comparative Study on Three Measures of Soil Moisture Determination in Semi-arid Sandy Land[J].Bulletin of Soil and Water Conservation,2012,32(2):147-149.
Authors:ZHANG Jun-hong  WU Bo  YANG Wen-bin and CUI Li-qiang
Institution:1.Institute of Desertification Studies,Chinese Academy of Forestry,Key Laboratory of Tree Breeding and Cultivation,State Forestry Administration,Beijing 100091,China;2.College of Ecology and Environmental Science,Inner Mongolia Agricultural University,Hohhot,Inner Mongolia 010019,China)
Abstract:Soil moisture is an important factor for plant growth and development in arid and semiarid areas.We used three methods of drying methods,TDR(time domain reflectometry) and EC-5 sensor to observe soil moisture variations in the Mu Us sandy land.The results show that there was no significant difference in the soil moisture contents measured using the three methods in different layers.The values from the three methods were significantly correlated.EC-5 sensors could be used in observation low water contented soils with a precision level similar to traditional methods like drying and TDR.Furthermore,EC-5 is more suitable in developing an automated soil moisture monitoring network.
Keywords:Mu Us sandy land  soil moisture  measure
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