Temporal-spatial climate change in the last 35 years in Tibet and its geo-environmental consequences |
| |
| Authors: | Wei Liu Qinghai Guo Yanxin Wang |
| |
| Institution: | (1) Key Laboratory of Biology and Environmental Geology, School of Environmental Studies, Ministry of Education, China University of Geosciences, 430074 Wuhan, Hubei, People’s Republic of China;(2) Geo-environmental Monitoring Institute of Tibet Autonomous Region, 850000 Lhasa, Tibet, People’s Republic of China |
| |
| Abstract: | The climate change in Tibet has induced complex water resource and geo-environmental changes. Tibet is located in a unique
geographical zone with the characteristics of middle-low latitude, high altitude and very low average air temperature, and
the climate there has been changed both in time and in space under the effect of global warming. Except for two regions without
data, the changes of both air temperature and rainfall in the last 35 years in Tibet exhibit evident zonational patterns.
In general, air temperature increases higher from east to west, whereas rainfall changes from decrease to increase from south
to north. Except for some areas in southern Tibet, the general increase of rainfall accelerated the rate of water cycle, and
caused an increase in the gross amount of water resources in Tibet. Moreover, under the impact of climate change, the frequency
of occurrence of landslide and debris flow has slightly increased in the high mountain–canyon regions of eastern Tibet. Also,
the debris flow due to ice lake outburst has evidently increased in the plateau mountain–lake basin regions of southern Tibet.
By contrast, desertification in the western plateau–lake basin regions of northern Tibet has been intensified. |
| |
| Keywords: | Climate change Air temperature Rainfall Water resource Geo-environment Tibet plateau |
| 本文献已被 SpringerLink 等数据库收录！ |
|
