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中国沙漠 ›› 2009, Vol. 29 ›› Issue (5): 995-1002.

• 水文与水资源 • 上一篇    下一篇

甘肃省苦咸水资源量及时空分布规律研究

王双合1, 胡兴林1,2, 蓝永超2, 王 静1, 丁再盛1   

  1. 1.甘肃省水文水资源勘测局, 甘肃 兰州 730000; 2.中国科学院 寒区旱区环境与工程研究所 黑河生态水文与流域集成管理研究实验室, 甘肃 兰州 730000
  • 收稿日期:2009-01-08 修回日期:2009-02-25 出版日期:2009-09-07 发布日期:2009-09-07

Bitter-Salty Water Resources Amount and its Distribution in Gansu Province

WANG Shuang-he1, HU Xing-lin1,2, LAN Yong-chao1, WANG Jing1, DING Zai-sheng1   

  1. 1.Hydrology and Water Resources Bureau of Gansu Province, Lanzhou 730000, China; 2.Heihe Laboratory of Ecohydrology and Integrated Basin Management, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2009-01-08 Revised:2009-02-25 Online:2009-09-07 Published:2009-09-07

摘要: 通过实测资料对甘肃省苦咸水资源进行评价,得出了苦咸水资源的数量、地域分布、在全省水资源总量中所占的比重、影响人口等。分析了苦咸水的成因,论证了苦咸水在空间分布上与降水、蒸发和干旱指数等气候因素之间的相关关系,提出降水量430 mm左右为黄土高原区苦咸水与淡水的分界线。通过构建箱体概念模型,分析导出了黄土高原干旱\,半干旱区小流域矿化度的时空演变数学模型,从宏观上揭示了径流矿化度的时空演变规律和趋势,提出苦咸水流域的治理和水资源的开发利用思路。

关键词: 苦咸水, 分布规律, 研究, 黄土高原

Abstract: Based on the historical measured data of water resources, the authors evaluated the bitter-salty water resources in Gansu province. Some characteristics such as the bitter-salty water resources quantity, regional distribution, proportion to the provincial total, and suffered population, were analyzed. Its regional distribution has close relation with precipitation, evaporation and arid index. The isoline of 430 mm precipitation could be regarded as the dividing line between fresh water and bitter-salty water on the Loess Plateau. A box conceptual model about water-salt balance in closed basin was established, from which a mathematical model about water salinity evolution in space-time has been deduced. The model can disclose the law of runoff salinity evolution in space-time in the arid and semi-arid small river basin on Loess Plateau, and the result can guide the bitter-salty water treatment and water resources development.

Key words: bitter-salty water, distribution rule, Loess Plateau of China

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