水电站施工对荒漠生态的影响
首发时间:2008-11-24
摘要:荒漠生态系统是干旱区普遍存在的生态系统类型,其十分脆弱,极易遭到自然灾害及人为干扰的破坏,且生态恢复困难甚至不可逆。水电开发会对陆生生态系统会造成一系列不利影响,因此在水电开发过程中应该格外关注其对陆生生态系统的影响。 本文根据工程建设的实际情况,在疏勒河流域两水电站周边选择具有代表性的荒漠植被进行现场取样,并用土石方开挖量代表工程规模,通过对样方盖度、高度、生物量、生物多样性指数的对比,计算得出水电开发对荒漠生态系统的影响,分析干扰强度与其群落各指标变化的关系,最终得出结论:水电开发工程规模越大,对周边生态系统的生物多样性影响越大,但不一定对生物量的影响就会越大。
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The impact to desert ecosystem of hydropower construction
Abstract:The desert ecosystem is relatively common in the arid area, which is very fragile and vulnerable to natural disasters and human disturbance with the destruction , the restoration is difficult and slow or even irreversibly to be recoverey. Hydropower development can cause a range of adverse effects on terrestrial ecosystems. so should be paid special attention . Based on the actual situation of Project, this paper choose some representative quadrats beside two hydropower stations of Shule River, and choose Volume of earth rock excavation to represent engineering scale, comparative study on the quadrats\\\\\\\
Keywords: desert ecosystem hydropower development construction influence
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No.2599336342112274****
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