Evaluating methods for measuring the mean soil temperature

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Evaluating methods for measuring the mean soil temperature
	Bai, Yanying ; Scott, Thomas A. ; Chen, Weiping ; Chang, Andrew C.
刊名	GEODERMA
	2010-07-15
卷号	157 期号:3 页码:222-227
关键词	Soil temperature Pallmann method Thermistor sensor Diffusion-cell method
中文摘要	Measurements of temperatures that are averaged or integrated over long time spans are needed for a variety of purposes such as soil resource inventory and climate studies. Mean temperatures usually are obtained in a two-step process of observation and numerical integration of periodic values. Pallmann introduced a technique using a temperature driven chemical reaction to integrate temperature over a period time. In this research, we illustrated the field application of the Pallmann method to measure mean soil temperature in a long-term climate change investigation project The accuracy and consistency of the Pallmann method were evaluated by comparing two other temperature measurement methods: thermistor sensor and diffusion-cell method. The consistency of the Pallmann method is quite good. On average, the mean annual soil temperatures measured by the Pallmann method were 0.27 degrees C lower than those measured by the diffusion-cell method and were 0.64 degrees C higher than those measured by the thermistor sensor method. While statistical analysis showed that there was significant difference between the means of these three methods, the Pallmann method may better reflect the real ecological processes in soil in comparison with the arithmetic-mean temperature measured by the thermal sensors. It is an ideal method for studying the spatial variation in soil temperature and long-term climate changes. (C) 2010 Elsevier B.V. All rights reserved.
WOS记录号	WOS:000279749800017
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/20978]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Bai, Yanying,Scott, Thomas A.,Chen, Weiping,et al. Evaluating methods for measuring the mean soil temperature[J]. GEODERMA,2010,157(3):222-227.
APA	Bai, Yanying,Scott, Thomas A.,Chen, Weiping,&Chang, Andrew C..(2010).Evaluating methods for measuring the mean soil temperature.GEODERMA,157(3),222-227.
MLA	Bai, Yanying,et al."Evaluating methods for measuring the mean soil temperature".GEODERMA 157.3(2010):222-227.