| 引用本文: | 李友光,刘士峰,Huiliang,等.基于多物种栖息地适宜度模型的河道生态流量确定方法与应用[J].灌溉排水学报,0,():-. |
| LI Youguang,LIU Shifeng,王慧亮,et al.基于多物种栖息地适宜度模型的河道生态流量确定方法与应用[J].灌溉排水学报,0,():-. |
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| 摘要: |
| 【背景和目的】河流栖息模拟法是计算生态流量的最常用最有效的方法之一,然而,传统的栖息地模拟多以单一指示物种构建栖息地模型进行栖息地适宜度评价,忽略了水生生态系统中的种间关系,不能代表河流整体的生境质量水平。【方法】本论文基于模糊逻辑法构建多物种栖息地适宜度模型进行栖息地模拟,建立河流栖息地质量与径流条件的定量响应关系,进而确定河流生态流量。【结果】以浉河信阳市区段为实例,结果表明基于多物种栖息地适宜度模型推求的河段适宜生态流量为160~260m3/s,最小生态流量为60m3/s,比以鲫鱼为单一指示物种的栖息地模型的推求结果区间更小,提高了推求生态流量的精度。【结论】多指示物种的河流栖息地适宜度模型,能够考虑物种之间的竞争或促进对物种生长的影响,更有利于科学合理地确定河流生态流量。完善了河流生境评估理论体系,为河流水资源可持续开发利用提供保障。 |
| 关键词: 多物种;模糊逻辑;栖息地模型;适宜生态流量;最小生态流量 |
| DOI： |
| 分类号:X143 |
| 基金项目:国家自然科学基金青年项目 |
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| Determination method and its application of river ecological flow based on multi-species river habitat suitability model |
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LI Youguang1, LIU Shifeng2, 王慧亮2, YUAN Liangyu3,4
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1.Shihe River Treatment Project Construction Administration of Xinyang;2.zhengzhou university;3.Henan Water&4.Power Engineering Consulting CO.,Ltd
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| Abstract: |
| 【Objective】Different species form a complete ecological community. Selecting a single indicator species for habitat suitability evaluation has limitations and can not represent the overall habitat quality level of the river. The river habitat model with multiple indicator species can consider the competition between species and promote the impact on species growth, and improve the accuracy of river habitat model construction. 【Method】Taking Xinyang urban section of Shihe River as an example, a multi indicator species habitat model is constructed based on fuzzy logic method to establish the quantitative response relationship between river habitat quality and runoff conditions. 【Result】The results show that the suitable ecological flow of the river reach calculated by multi species is 160~260m3/s. The minimum ecological flow is 60m3/s. The result interval is more strict than that with crucian carp as a single indicator species, which is more conducive to determine the river ecological flow scientifically and reasonably. 【Conclusion】It improves the theoretical system of river habitat assessment and provides a guarantee for the sustainable development and utilization of river water resources. |
| Key words: Multi species; Fuzzy logic; Habitat model; Suitable ecological flow; Minimum ecological flow |
