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中国沙漠 ›› 2000, Vol. 20 ›› Issue (3): 323-325.

• 论文 • 上一篇    下一篇

电阻法在沙地水分动态测定中的应用

赵爱国, 何兴东, 段争虎, 陈珩   

  1. 中国科学院 寒区旱区环境与工程研究所, 甘肃 兰州 730000
  • 收稿日期:1999-08-16 修回日期:1999-11-15 出版日期:2000-09-20 发布日期:2000-09-20
  • 作者简介:赵爱国(1954-),男(汉族),陕西定边县人,高级工程师,主要从事沙区仪器研制。
  • 基金资助:
    国家自然科学基金项目(39670600)资助

Application of Electric Resistance Method on Monitoring the Soil Moisture Dynamics in Sandy Land

ZHAO Ai-guo, HE Xing-dong, DUAN Zhen-hu, CHENG Heng   

  1. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:1999-08-16 Revised:1999-11-15 Online:2000-09-20 Published:2000-09-20

摘要: 沙地水分定位动态监测是沙区农业、林业生产中的一项重要措施。一般测定沙地含水量多采用烘干法,由于沙地干燥,取样十分困难,加之测点变动,沙地水分空间变异性带来的测定误差,不能满足野外连续测定沙地水分动态变化的要求。在土壤水分测定中利用电阻法测定土壤含水量,是目前国内外应用比较多的方法之一,而应用在沙漠研究中却不多见。在塔克拉玛干沙漠腹地应用电阻法测定沙地水分动态,可以对沙地水分连续测定,特别是长期水分动态监测,电阻法测定仍是一种简便易行的新方法。

关键词: 电阻法, 沙地水分, 动态监测

Abstract: The monitoring of soil moisture dynamics is a key technique for agricultural and forestrial production of sandy area.The Oven Dring Method has been generally adopted before,but this method can not meet the need of continously monitoring the soil moisture dynamics in the field due to difficultily sampling,measuring point changing and sandy soil moisture varying spatially.The Electric Resistance Method is mostly used for measuring soil moisture at present in the world,while seldom in desert research.It's application in Taklimakan Desert's heartland proves that the Electric Resistance Method is simple,convenient and easily practiced in determining sandy soil moisture continously,especially long-term dynamic monitoring.

Key words: Electric Resistance Method, sandy soil moisture, dynamic monitoring

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