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本刊讯中外科学家研究发现,青藏高原及周边地区地下水储量增加,2003—2009年间,每年总增加量为186亿±48亿m~3,相当于三峡水库175m水位时近一半的库容。这项研究由中国科学院测量与地球物理研究所研究员汪汉胜负责的“地球表层物质平衡的定量评估”团队,与瑞典国土测量局、香港大学地球科学系合作完成,相关论文已发表在国际期刊《地球行星科学通讯》上。长期以来,由于可利用的水井水位测量数据极少,外界对青藏高原广阔地区的地下水状况知之甚少。然而其储量变化对高原生态恢复、农牧业发展、地质灾害防治、工程设计和地热开发等具有重要价值。
According to a survey conducted by Chinese and foreign scientists, groundwater reserves in the Tibetan Plateau and its surrounding areas have increased. From 2003 to 2009, the total annual increase was 18.6 billion ± 4.8 billion m 3, equivalent to nearly half of the reservoir volume of the Three Gorges reservoir at a water level of 175 m. This study was conducted by a team headed by Wang Hansheng, a researcher at the Institute of Geodesy and Geophysics, Chinese Academy of Sciences, who co-authored the Quantitative Assessment of Physical Matter on the Earth’s Surface with the Swedish Institute of Territorial Surveying and the Department of Earth Sciences of the University of Hong Kong. The related papers have been published in international journals Earth Planet Science Newsletter. For too long, little is known about the state of groundwater in the vast areas of the Qinghai-Tibet Plateau due to the very few available measurements of well water level. However, the change of its reserves is of great value to ecological restoration of plateau, development of agriculture and animal husbandry, prevention and control of geological disasters, engineering design and geothermal development.