摘要
通过藏北高原Ｄ１１０点一年中不同深度土壤温度的日最高值、日最低值及日温差的分析，表明从０ｃｍ～４０ｃｍ，土壤温度的日最高值的变化剧烈，而日最低值的变化则相对平稳。冬半年土壤温度的日最低值、日最高值比较接近，日温差较小，而且它们随时间的变化比较平稳；但夏半年（５～９月）波动较冬半年的大，且最高温的波动要比最低温的波动大得多；随深度的增加日温差减小。
The analysis based on the daily maximum, minimum and daily range of the ground temperature at different depths at D110 site, northern part of Tibetan Plateau, showed that from surface to 40cm depth the variation of the daily maximum ground temperature was strong. The variation of the daily minimum ground temperature was weak. In winter season, the daily maximum ground temperature and the daily minimum ground temperature are near. The daily range of ground temperature is small and its variation is gentle. The variation in Summer season are larger than that in winter. The variation of the daily maximum ground temperature is much larger than that of the daily minimum ground temperature. Except the surface daily minimum ground temperature, the increasing processes of the ground temperature in May in all depths are larger than the decreasing processes in September. However, it is need to observe and study further whether this is the usual feature in northern part of Tibetan Plateau or it is just a special feature.
出处
《山地学报》
CSCD
1999年第3期207-211,共5页
Mountain Research
基金
中国科学院重大项目
冰冻圈研究项目
中日合作GAME-Tibet项目
关键词
藏北高原
土壤温度
日最低温
日温差
极值
northern part of Tibetan Plateau, ground temperature, daily maximum ground temperature, daily minimum ground temperature, daily range of ground temperature
