长江科学院院报 ›› 2014, Vol. 31 ›› Issue (12): 39-42.DOI: 10.3969/j.issn.1001-5485.2014.12.008

• 农业水利 • 上一篇    下一篇

控制排水对土壤水分状况影响研究

袁念念1,2,黄介生2,谢华2,李亚龙1   

  1. 1.长江科学院 农业水利研究所,武汉 430010;
    2.武汉大学 水资源与水电工程科学国家重点实验室,武汉 430072
  • 收稿日期:2014-05-26 修回日期:2014-12-05 出版日期:2014-12-01 发布日期:2014-12-05
  • 作者简介:袁念念(1985-),女,湖北天门人,工程师,博士,主要从事农田排水与水环境研究,(电话)027-82820913(电子信箱)yyynyfb@163.com。
  • 基金资助:
    国家自然科学基金项目(51409007) ;“十二五”国家科技支撑计划项目(2012BAD08B03);水利部公益性科研院所基本科研业务费项目(CKSF2014040/NS)

Effect of Controlled Drainage on Soil Moisture in Field

YUAN Nian-nian1,2, HUANG Jie-sheng2, XIE Hua2, LI Ya-long1   

  1. 1.Department of Agricultural Water Conservancy, Yangtze River Scientific Research Institute, Wuhan430010, China;
    2.State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University, Wuhan 430072, China
  • Received:2014-05-26 Revised:2014-12-05 Online:2014-12-01 Published:2014-12-05

摘要: 为研究农田控制排水措施对土壤水分状况的影响,2010年在湖北四湖工程管理局排灌试验站进行大田控制排水和自由排水对照试验,在棉花生育期内观测土壤含水率,分析了控制排水对土壤含水率的影响,并对几次典型降雨前后土壤含水率进行了对比分析。结果表明控制排水措施能保持土壤水分,减少土壤含水率的波动,尤其在降雨后保持田间水分的效果更为明显,但土壤含水率与控制水位间相关关系不明确。

关键词: 控制排水, 土壤含水率, 变异系数

Abstract: In order to study the effect of controlled drainage on soil moisture, we carried out experiments of controlled drainage and free drainage for comparison in the land for growing field crops at Drainage and Irrigation Station in Jingzhou, Hubei province, 2010. We observed the soil water content in the whole cotton growth period and analysed the coefficient of soil water content variation. Results showed that controlled drainage had an obvious effect on soil water content in the whole growth period by retaining moisture and reducing the fluctuation of soil water content especially after rainfall, but the relation between soil water content and controlled water table was not definite.

Key words: controlled drainage, soil water content, coefficient of variation

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