基于魚類生境需求的生態(tài)流量過程研究
發(fā)布時間:2018-03-13 17:40
本文選題:生境特征 切入點(diǎn):生態(tài)需水 出處:《水力發(fā)電》2016年04期 論文類型:期刊論文
【摘要】:選用日漲水率和日落水率兩個生態(tài)水文因子,構(gòu)建裂腹魚棲息地生態(tài)水文學(xué)特征指標(biāo)。結(jié)果表明,產(chǎn)卵期日漲水率的適宜范圍為0.005~0.015,日落水率的適宜范圍為0.005~0.015;非產(chǎn)卵期(5~10月)日漲水率的適宜范圍為0.01~0.05,日落水率的適宜范圍為0.02~0.04。采用文獻(xiàn)法和專家法得出裂腹魚產(chǎn)卵期偏好水深范圍為0.5~1.5 m、偏好流速范圍為0.5~2.0 m/s。用不同方法計算了蘇洼龍水電站壩下河段生態(tài)需水量,并結(jié)合金沙江上游天然河流的水文情勢及裂腹魚棲息地生態(tài)水文學(xué)特征,以生態(tài)水力學(xué)法的計算結(jié)果作為基流量,確定了蘇洼龍水電站壩下河段的生態(tài)流量過程。
[Abstract]:Two ecological hydrological factors, daily water rise rate and sunwater fall rate, were used to construct ecological hydrological characteristics of the habitat of the fissure fish, and the results showed that, The optimum range of daily water rate in oviposition period is 0.005 ~ 0.015, that of sunset water rate is 0.005 ~ 0.015; that of non-oviposition period is from 5 to October) the optimum range is 0.01 ~ 0.05, and the suitable range of sunset water rate is 0.02 ~ 0.04. The preferred water depth is 0.5 ~ 1.5 m and the preferred velocity range is 0.5 ~ 2.0 m / s. Different methods are used to calculate the ecological water demand under the dam of Suwulong Hydropower Station. Based on the hydrological situation of the natural rivers in the upper reaches of Jinsha River and the ecological hydrological characteristics of the fissure habitat, the ecological discharge process of the lower reaches of the dam of Suwulong Hydropower Station is determined by using the results of the ecological hydraulics method as the basic discharge.
【作者單位】: 中國電建集團(tuán)北京勘測設(shè)計研究院有限公司;中電投新疆能源化工集團(tuán)南疆分公司;
【分類號】:TV213.4
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本文編號:1607432
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