| 物理栖息地模型在中华鲟自然繁殖生态流量决策中的应用 |
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| 引用本文： | 班璇.物理栖息地模型在中华鲟自然繁殖生态流量决策中的应用[J].水生态学杂志,2011,32(3):59-65. |
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| 作者姓名： | 班璇 |
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| 作者单位： | 中国科学院测量与地球物理研究所湖北省环境与灾害监测评估重点实验室,湖北武汉,430077 |
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| 基金项目： | 中国科学院知识创新项目 |
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| 摘 要： | 以国家一级保护物种中华鲟(Acipenser sinensis)为研究对象,探讨三峡大坝和葛洲坝水利工程在不同流量调度措施下对中华鲟产卵栖息地的影响。通过考虑中华鲟生境需求特性建立了中华鲟产卵场的物理栖息地模型,根据模型得出的适宜栖息地面积变化来量化不同的流量调度措施对其产卵场质量的影响,然后利用实测的中华鲟产卵量和资源量数据来验证和评价物理栖息地模型的可靠性和实用性,从而进行合理的生态流量决策。结果发现,年平均适宜栖息地面积的变化曲线与中华鲟的产卵量和资源量变化曲线有着相同的变化趋势,从而推断适宜栖息地面积可以反映中华鲟产卵栖息地的质量;并通过不同流量工况的计算,进行最佳生态流量决策。利用该物理栖息地模型可以有效地量化流量改变对目标物种栖息地质量的影响,为中华鲟产卵栖息地的生态水利调度提供评估和决策的方法。
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| 关 键 词： | 中华鲟 适宜栖息地面积 栖息地时间序列 物理栖息地模型 生态流量决策 |
| 收稿时间： | 8/9/2010 9:26:44 AM |
| 修稿时间： | 2/25/2011 5:12:43 PM |
Applying Physical Habitat Simulation Model on the Ecological Flow Decision of Acipenser sinensis Natural Breeding |
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| Ban Xuan.Applying Physical Habitat Simulation Model on the Ecological Flow Decision of Acipenser sinensis Natural Breeding[J].Journal of Hydroecology,2011,32(3):59-65. |
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| Authors: | Ban Xuan |
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| Institution: | Institute of Geodesy and Geophysics, Chinese Academy of Sciences |
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| Abstract: | The national-level protected species of Chinese sturgeon is targeted as a study to explore the different operation measures of Three Gorges Dam and Gezhouba Dam impact on the Chinese sturgeon spawning habitat. A physical habitat simulation model of Chinese sturgeon is established by considering the fish habitat needs, the suitable habitat area derived from the model is used to quantify impact of the different operations on the spawning habitat quality. Then the surveyed abundance of eggs and populations of Chinese sturgeon are used to verify and evaluate the reliability and practicability of this model. The results showed that the curve of the average annual change in suitable habitat area have the same trend with the Chinese sturgeon abundance curve, and thus infer suitable habitat area may reflect the quality of Chinese sturgeon spawning habitat; The model is used to make a decision on the ecological flow based on different scenario simulation. The physical habitat model can effectively quantify the effects of flow rate change on the target species habitat quality, it could provide assessment and decision-making methods for the ecological flow operation of Chinese sturgeon spawning habitat. |
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| Keywords: | Chinese sturgeon suitable habitat area habitat time series physical habitat model ecological flow decision |
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