水生态学杂志2016，Vol.37Issue(3)：70-75,6.DOI:10.15928/j.1674-3075.2016.03.010
生境模拟法在黑水河鱼类栖息地保护中的应用
Application of Habitat Simulation to Fishery Habitat Protection in Heishui River
摘要
Abstract
Heishui River is an important tributary of the lower Jinsha River with abundant fishery resources.How-ever,exploitation of hydropower on the river has changed the natural flow regime and interrupted river continuity, resulting in habitat loss and the need for habitat conservation.Habitat evaluation is crucial for effective habitat res-toration.To study fish habitat suitability and develop an effective habitat conservation program for Heishui River,a hydrodynamic and fish habitat suitability simulation was run from the dam at Sujiawan to Gongdefang hydropower station.The habitat and hydrodynamic simulation was based on the instream flow incremental methodology (IFIM), combined with the River2D Hydrodynamic Model.The quantity,quality and distribution of suitable physical habitat were then analyzed and the weighted usable area (WUA)and fish habitat suitability in the study area was evaluated and the main problems were identified.It is 3.1 km from Sujiawan dam to Gongdefang hydropower station,inclu-ding the Sujiawan reduced water segment (2.3 km)and the open water of Gongdefang Reservoir (0.8 km).Re-sults indicate the total water surface area in Gongdefang reservoir was 5.71 hm2 during the dry season (January) and fish spawning period (May),and the Weighted Usable Area (WUA)was 1.80 hm2 .During the wet season, the total water area was 6.29 hm2 and the WUA was 2.13 hm2 .The total water area of the Sujiawan reduced water segment was 3.15 hm2 under the condition of ecological flow (4.8 m3 /s)and the WUA was 0.83 hm2 .The water area in Gongdefang reservoir is large,the suitability index was high in most reaches,and the effective habitat area was large.The instream flow in the Sujiawan reduced water segment was small,mostly shallow,and the suitable habitat area was small,indicating a need for habitat restoration.Based on the results,two habitat restoration schemes in the Sujiawan reduced water segment were simulated:ecological flow increases amounting to 10%, 12.5% and 15% of the average annual flow at the dam;increasing the average annual flow by 10% and using river-way treatment.After comparing the results,we suggest the riverway treatment be given priority,combined with eco-logical flow optimization.关键词
生境模拟法/鱼类栖息地/黑水河Key words
habitat simulation method/fish habitat conservation/Heishui River分类
生物科学引用本文复制引用
傅菁菁,黄滨,芮建良,谭升魁,赵爽..生境模拟法在黑水河鱼类栖息地保护中的应用[J].水生态学杂志,2016,37(3):70-75,6.基金项目
浙江省自然科学基金（编号LQ14G030020）。 （）
