文献类型： 外文期刊
第一作者： Feng, Jun-jie
作者： Feng, Jun-jie;Lv, Mou-chao;Deng, Zhong;Jia, Yan-hui;Liu, Yang;Feng, Jun-jie;Lv, Mou-chao;Deng, Zhong;Jia, Yan-hui;Liu, Yang;Ren, Fang
作者机构：
关键词： Soil bulk density;Soil water potential;Soil moisture content
期刊名称：2016 INTERNATIONAL CONFERENCE ON ENVIRONMENTAL SCIENCE AND ENGINEERING (ESE 2016)
ISSN：
年卷期： 2016 年
页码：
收录情况： SCI
摘要： Based on loam soil in different design density 1.4 g/cm(3), 1.5 g/cm(3), 1.6g/cm(3), we had done the test of the changes relationship between soil containing water and soil water potential, and analyzed soil water potential trends of loam soil in the design of different bulk density. The results show that the value of loam soil water potential is in the range of 57 to 140kpa under the same soil containing water (gravimetric water content 12.5%) and the design of three soil bulk density, and present that the greater soil bulk density, the smaller soil water potential. The changing range of them is in trend of decreasing. All of these experimental studies will be benefit to choose the suitable discharge of dripper for drip irrigation system, and make full use of the natural energy of soil water potential, using it as the control index of irrigation system. At the same time, these results can provides a theoretical basis further for researching on the crop root zone soil moisture migration regularity and determining the optimal soil moisture environment.
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