本文選題：魚(yú)類(lèi)產(chǎn)卵場(chǎng) + 水文情勢(shì)�。� 參考：《人民長(zhǎng)江》2017年01期

【摘要】：漢江孤山水電站建成后,庫(kù)區(qū)水文情勢(shì)將發(fā)生變化,對(duì)庫(kù)區(qū)的魚(yú)類(lèi)資源產(chǎn)生一定影響。采用一維水動(dòng)力模型模擬了孤山水電站建庫(kù)前后庫(kù)區(qū)河段水文情勢(shì),并根據(jù)模擬結(jié)果分析了白河、將軍河河口產(chǎn)漂流性卵魚(yú)類(lèi)產(chǎn)卵場(chǎng)的水文情勢(shì)變化情況。結(jié)果表明,孤山電站建成運(yùn)行后,庫(kù)區(qū)河段日均水位、水面寬均有不同程度的增加,流速總體由庫(kù)尾至壩前逐漸減小;白河、將軍河河口斷面水位分別抬高7,15 m,流速分別降低至0.11~0.14,0.08~0.09 m/s,水面寬分別增加33~49,104~150 m,魚(yú)類(lèi)產(chǎn)卵場(chǎng)水文情勢(shì)變化明顯。根據(jù)當(dāng)?shù)佤~(yú)類(lèi)的產(chǎn)卵條件分析可知,魚(yú)類(lèi)產(chǎn)卵場(chǎng)生態(tài)環(huán)境將受到較大影響,魚(yú)類(lèi)產(chǎn)卵規(guī)模和效果將大幅降低。因此,水庫(kù)建成后,應(yīng)采取相應(yīng)的措施保護(hù)當(dāng)?shù)氐聂~(yú)類(lèi)資源。
[Abstract]:After the completion of Gushan Hydropower Station in Hanjiang River, the hydrological situation of the reservoir area will change, which will have a certain impact on the fish resources in the reservoir area. A one-dimensional hydrodynamic model was used to simulate the hydrological situation in the reservoir area before and after the construction of the Gushan Hydropower Station, and the hydrological situation of the oviposition of drifting oviposit in the estuary of Baihe River and the estuary of the General River was analyzed according to the results of the simulation. The results show that the daily average water level and water surface width of Gushan Hydropower Station increase in varying degrees, and the velocity of flow decreases gradually from the tail of reservoir to the front of dam. The water level in the section of the mouth of the river was raised by 7 ~ 15m, the velocity of water was reduced to 0.110.140.14 ~ 0.08m / s, the width of the water surface increased by 334104 ~ 150m, and the hydrological situation of fish spawning site changed obviously. According to the analysis of the spawning conditions of local fish, the ecological environment of fish spawning grounds will be greatly affected, and the scale and effect of fish spawning will be greatly reduced. Therefore, the reservoir should take appropriate measures to protect the local fish resources.
【作者單位】： 長(zhǎng)江水利委員會(huì)長(zhǎng)江水資源保護(hù)科學(xué)研究所;
【分類(lèi)號(hào)】：S931.3;TV697.21

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