从能量输入角度讨论高原隆升的环境效应  

Discussion on Environmental Effects of Plateau Uplift in View of Energy Inflow

作　　者：邵兆刚[1] 孟宪刚[1] 朱大岗[1] 杨朝斌[2] 雷伟志[1] 王津[1] 韩建恩[1] 余佳[1] 孟庆伟[1] 吕荣平[1] 钱程[1] 

机构地区：[1]中国地质科学院地质力学研究所,北京100081 [2]西藏自治区国土资源厅,拉萨850000

出　　处：《吉林大学学报（地球科学版）》2009年第3期514-520,共7页Journal of Jilin University：Earth Science Edition

基　　金：国土资源大调查项目(1212010610108)

摘　　要：青藏高原的形成是地壳演化历史上最令人瞩目的地质事件之一,在全球环境和生态系统中占有重要地位。目前,以全球气候变暖为突出标志的全球环境变化可能对生态系统及人类社会产生的影响,已引起了科学家、各国政府及社会的极大关注。全球气候变化问题已成为人们关注的焦点。通过对气温递减规律形成机理和青藏高原本身的环境特征分析表明,青藏高原隆升不能带来高原表面温度的降低。随着高原面整体的不断升高,高原表面逐渐形成以高日温差为特征的强烈波动环境。高原表面这一环境特征,有利于高原面将所吸收的太阳辐射快速释放回太空,而不参与地球气候系统循环,在输入的太阳光能总体保持不变的情况下,高原隆升将直接导致全球气候系统降温;而地球大气随海拔高程呈指数衰减的性质,使高原的降温作用在隆升初期就非常强烈。在此基础上对高原隆升的植被、冰川等环境特征及应用前景进行了初步探讨,为进一步揭示高原隆升与全球环境变化关系研究提供了思路和依据。The uplift of the Tibetan earth＇s crust evoluti global environmenta on histor hange y, an repre d holds sented Plateau is one of the most amazing geological events in the an important status in the global environment. Nowadays, the by the global warming and its potential impact on the ecosystern and human society have drawn great attention from scientists, governments and society. The global climate change has become the focus of the people＇s attention. According to the mechanism of diminishing temperature of the Qinghai -Tibet Plateau and its environmental characteristics analysis, the Qinghai- Tibet Plateau uplift should not have brought in the reduction of the plateau surface temperature. With the surface of the plateau rising, plateau surface had been shaping strong fluctuation environment with the character of high diurnal temperature range. This character of the plateau surface will rapidly release the energy of solar radiation absorbed by the surface of the plateau back into the space, rather than participate in the earth climate system cycle. At the situation of solar energy input remains unchanged, the uplift of the plateau will have directly cause the global climate system cooling. The character of the earth＇s atmosphere with the altitude exponential decay had made the cooling effect very strong at the early stage of the uplift. Based on the all mentioned above, the authors have preliminarily discussed the prospect of vegetation, glaciers and other special environmental characteristics with the uplift of the plateau. This has provided a new method for further study to disclose the relationship between the uplift of the Tibetan Plateau and the globe environmental variation.

关 键 词：青藏高原 温度效应 气候变化 高原隆升 

分 类 号：X144[环境科学与工程—环境科学]