| 用热电偶湿度计测定土壤水势的方法研究 |
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| 引用本文： | 张富仓,李志军,康绍忠.用热电偶湿度计测定土壤水势的方法研究[J].西北农林科技大学学报(社会科学版),2001,29(1):55-58. |
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| 作者姓名： | 张富仓 李志军 康绍忠 |
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| 作者单位： | 西北农林科技大学 |
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| 基金项目： | 陕西省科委攻关项目(2000 K07-G1-01)和杨凌农业生物技术中心资助项目(99-8) |
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| 摘 要： | 用美国 Wescor公司生产的 PCT- 5 5热电偶土壤湿度传感器和 HR- 33T微伏计对黄土区 2种典型土壤的水势进行了测定试验研究 ,并与压力膜法测定的土壤持水曲线进行了比较。结果表明 ,热电偶土壤湿度计有测定土壤水势范围广、使用方便、准确度高且能用于田间定位监测土壤水势动态之优点
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| 关 键 词： | 土壤水势 热电偶湿度计 微伏计 压力膜法 |
| 文章编号： | 1000-2782(2001)01-0055-04 |
| 收稿时间： | 1/6/2000 12:00:00 AM |
| 修稿时间： | 2000年1月6日 |
Measurement of soil water potential with thermocouple psychrometers |
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| WANG Fu xin,CHEN Yao feng,WANG Hui ping,REN Hui li,HAN De jun,LI Chun lian.Measurement of soil water potential with thermocouple psychrometers[J].Journal of Northwest Sci-Tech Univ of Agr and,2001,29(1):55-58. |
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| Authors: | WANG Fu xin CHEN Yao feng WANG Hui ping REN Hui li HAN De jun LI Chun lian |
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| Institution: | (Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas,Ministry of Education, Northwest Science and Technology University of Agriculture and Forestry,Yangling,Shaanxi 712100,Chin |
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| Abstract: | Water potential of two typical soils in loess is measured and studied with PCT 55 thermocouple psychrometer and HR 33T millvoltmeter manufactured by Wescor Corporation in USA,and the measurement results of soil water characteristic curve is compared with the method of soil moisture pressure membrane.The results show that thermocouple psychrometer has the advantage of large measurement range,simple handling and high resolution,so it is suitable for dynamic measurement of soil water potential in field. |
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| Keywords: | soil water potential thermocouple psychrometers millvoltmeter method of soil moisture pressure membrane |
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