| 石羊河流域生态环境的变迁与水资源利用对策 |
| 摘要点击 761 全文点击 725 投稿时间：1992-03-20 |
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| 中文关键词 石羊河流域 水资源管理 干旱地区 决策模型 |
| 英文关键词 the Shiysnghe River basin management of water resources arid area decision-making model |
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| 中文摘要 |
| 本文对石羊河流域水资源开发利用中存在的问题提出新观点,认为:①人们以往只注意强化地表水控制,削弱了天然地下水库的调节作用;②只注意农田用水,忽视了绿洲生态用水;⑧目前采用的落后灌溉方式造成水资源的严重浪费。针对这些问题,本文提出石羊河流域水资源管理综合决策方案,建立多目标管理决策模型,把该流域划分为16个管理亚区,以绿洲农田生态系统和植被生态系统的需水量为决策变量,对经济发展、开发水资源投资、生态环填改善等方面的9个目标作综合考虑。通过模型的模拟运转,展示了该流域生态环境日趋恶化的状况可以得到有效的控制。 |
| 英文摘要 |
| The authors present a new viewpoint that deterioration of ecological environment in the arid region the Shiyanghe River basin of northwest China, has originated from three causes:(1) people put undue emphasis on surface water controlling, and neglected the regulative function of natural ground water reservior; (2) water for farmland use was stressed but water for oasis use was neglected; (3) the backward way of irrigation leads so far to serious waste of water resources. In order to solve the problem, a proposed multi-goal decision-making model has been built for managing rational use of water resources in the Shiyanghe River basin. In this model,as the basin is divided into 16 subdistricts, the quantity of water for both oasis-farmland ecosvstem and vegetation eco-systemn necessities is considered as a main variable, andintegrates with economic development, the investment of waterresource development, amelioration of ecological environment etc 9 goals to be regarded. The result of the model operation shaws that deterioration of ecological environment in the basin will be in effective control. |
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