土壤导热率
又称导热系数。土壤传导热量的性能。通常用导热率（导热系数）表示，即当温度相差1℃时，每秒钟在断面积lcm2、厚lcm的物体内所通过的热量卡数。土壤导热率取决于固、液、气三相的相对含量。土壤固相物质导热率最大，水次之，空气最小。在固相物质组成一定的情况下，土壤导热率随湿度增大而增大。故湿土温度变化比干土和缓。
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contributed at 2011-12-23
Classification(s)
●
Earth System(in Chinese) Soil Science
Detailed Description
| English |
|---|
| Name | heat conductivity; thermal conductivity |
| Chinese |
|---|
| Name | 土壤导热率 |
| Description | 又称导热系数。土壤传导热量的性能。通常用导热率（导热系数）表示，即当温度相差1℃时，每秒钟在断面积lcm2、厚lcm的物体内所通过的热量卡数。土壤导热率取决于固、液、气三相的相对含量。土壤固相物质导热率最大，水次之，空气最小。在固相物质组成一定的情况下，土壤导热率随湿度增大而增大。故湿土温度变化比干土和缓。 |
How to Cite
NNU_Group (2011). 土壤导热率, Concept & Semantic, OpenGMS,
https://geomodeling.njnu.edu.cn/repository/concept/228a1a15-db7c-4217-87b4-35b1fc2ff227
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