摘要
以中国区域地面气象要素驱动数据集(CMFD)为基础,结合Grace重力卫星数据,分析了罗布泊地区的气温、降水量、蒸散发量和地下水位的时空变化特征。结果表明:近30年来,罗布泊地区的气温呈明显上升趋势,年平均气温为12.9℃;降水呈缓慢的下降趋势,年平均降水量为6.2 mm;潜在蒸散发的数量级远远超过本地降水量;根据GRACE卫星计算结果,地下水位表现出下降趋势;Hurst指数表明未来罗布泊的气温、降水和蒸散发分别呈下降、上升和缓慢下降趋势。在未来的气候变化中,该区域内不会因为气候环境和地下水水位的变化对湖盆区内的铁路工程建设等人类活动造成影响。
Based on China's regional surface meteorological elements driven dataset(CMFD)and Grace gravity satellite data,the spatio-temporal variations of temperature,precipitation,evapotranspiration and groundwater level in Lop Nur region were analyzed.The results showed that the average annual temperature in Lop Nur area was 12.9℃.The annual average precipitation was 6.2mm,and the annual average precipitation was 6.2mm.The potential evapotranspiration is an order of magnitude greater than local precipitation.According to the GRACE satellite calculation results,the groundwater level showed a decreasing trend.Hurst index indicated that the future temperature,precipitation and evapotranspiration in Lop Nur will decrease,increase and slowly decrease,respectively.In the future climate change,the changes of climate environment and groundwater level would not affect human activities such as railway construction in the lake basin.
作者
陈彪
王振文
刘云飞
CHEN Biao;WANG Zhenwen;LIU Yunfei(Xinjiang Railway Survey and Design Institute Co.,Ltd.,Ururnqi 830011,China;Xinjiang Institute of Ecology and Geography,Cinese Academy of Sciences,Ururnqi 830011,China)
出处
《环境保护科学》
2025年第1期154-160,共7页
Environmental Protection Science
基金
新疆罗布泊湖区恢复问题专题论述研究(E142010701)。
关键词
气候变化
地下水位
气温
降水
罗布泊
HURST指数
climate change
groundwater level
temperature
precipitation
Lop Nur
Hurst index
