Evident change in climate of the Qinghai-Tibet Plateau occurred in the past half century. Surface air temperature significantly increased, and annual and summer precipitation rose in most parts of the plateau. The change in climate has in some extent affected the human and natural systems. Expected wanning in the coming decades will have complicated impacts on glacial, frozen ground, hydro-cycle, ecosystems, agricultural production, energy climatic resources, transportation, hydro-engineering projects and inhabitant environment. It is therefore necessary, in such areas as the construction of large engineering projects, to plan for cost-benefit adaptation to climate change. A framework of adaptation measures for different fields of engineering construction is discussed in this paper.%最近半个世纪,青藏高原地面气候发生了一定变化,主要表现在地面平均气温明显上升,冬季、夜间和城镇区域气温上升尤其显著,多数地区降水量呈现不同程度增加.气候变暖对高原地区自然和人类系统产生了一定影响.预计未来青藏高原气候总体将继续趋向变暖,这可能对冰冻圈、河湖系统、陆地植被、农业自然条件、能源气候资源、交通和水利设施、城镇人居环境等产生明显影响.与生态保护和经济社会发展有关的各类大型工程的规划、设计和维护,需要考虑今后气候变化的可能影响,及早制定可行的适应性措施.
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