长江江源高寒地区气候变化对水文环境的影响研究综述
Analysis of Climate Change Impact on the Hydrological Environment in the High and Cold Source Region of the Yangtze River
  
DOI:
中文关键词:  长江源  高寒地区  气候变化  水文气象要素  水文环境
英文关键词:source region of the Yangtze River, high and cold region, climate change, meteorological and hydrological elements, hydrological environment
基金项目:国家自然科学基金项目(41271045)
作者单位
梁川 四川大学水利水电学院,成都 
赵莉花 河北省水利科学研究院 
张博雄 河北农业大学 
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中文摘要:
      在全球气候变化背景下,长江江源高寒地区的水文气象要素(气温、降水、蒸发、径流)和水文环境(冰川、冻土、积雪、湿地、沼泽、植被)已发生受到重大影响,。尤其是随着气候变暖导致,长江江源地区出现了冻土及冻土环境退化、植被退化、冻融侵蚀和土地荒漠化的四大生态环境问题。通过对该地区近50a气候变化对水文气象要素和水文环境影响研究现状的辨析,并结合从国家需求和科学问题两个层面的思考与认识上,指出了当前亟待解决的主要问题并对今后的研究方向进行了展望。建议了当下提出了急需开展的相关科学研究工作内容和建议。希望这对于促进长江、黄河上游地区和岷江、大渡河、嘉陵江的河源区生态屏障建设,特别是保障三峡库区水资源安全利用研究能够起到一定的参考作用。
英文摘要:
      As a result of global warming, the meteorological and hydrological elements (temperature, precipitation, evaporation and runoff) and the hydrological environment (glacier, permafrost, snow, wetlands, swamp and vegetation) have been severely impacted in high and cold source region of the Yangtze River. The severe environment problems as permafrost degeneration, vegetation degeneration, freeze-thaw erosion and land desertification have occurred at the region. Through analysis of impact of last 50 years’ climate changes on the meteorological and hydrological elements and the hydrological environment, we point out the current problems urgently to be addressed and suggest future research fields based on science and national demand. And we hope these work can provide some referential experience for improving the ecological barrier construction in source regions of the Yangtze River, the Yellow River, the Minjiang River, the Dadu River and Jialing River, especially for safe water use in the Three Gorges Reservoir area.
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