【摘要】：以東吾洋內(nèi)灣海域環(huán)境為研究對象,基于驗證的MIKE21中的HD和MT模型,計算分析了單一建設(shè)仙東漁港工程、單一建設(shè)關(guān)門漁港工程和兩個漁港工程同時存在三種情景下東吾洋海域潮流場和泥沙場的變化。結(jié)果表明,當(dāng)單一建設(shè)關(guān)門漁港工程時,流速增幅區(qū)域面積最大,關(guān)門水道附近泥沙強沖刷區(qū)域面積最大;當(dāng)關(guān)門和仙東漁港工程同時存在時,流速增幅及泥沙強沖刷區(qū)域面積次之;而當(dāng)單一建設(shè)仙東漁港工程時,流速增幅及泥沙強沖刷區(qū)面積最小。相較于其他兩種情景,當(dāng)單一建設(shè)關(guān)門漁港工程時,關(guān)門水道附近水動力條件最強,高流速水體導(dǎo)致沉積在底部的泥沙產(chǎn)生紊動使得水質(zhì)變得渾濁,對周圍藻類植物及浮游動物的生長產(chǎn)生極大的負面作用,也會大大降低紫菜海帶養(yǎng)殖區(qū)及網(wǎng)箱養(yǎng)殖區(qū)的產(chǎn)量,另外對大黃魚產(chǎn)卵區(qū)的分布也會造成很大的沖擊。綜合考慮,仙東漁港建設(shè)較為合理,而關(guān)門漁港的選址存在問題。
[Abstract]:Based on the HD and MT models in MIKE21, the paper calculates and analyzes the construction of a single Xiandong fishing port. In the case of single closed fishing port project and two fishing port projects, there are three scenarios for the variation of tidal and sediment fields in the Dongwu sea area. The results show that when a single closed fishing port is constructed, the area of velocity increase is the largest, and the area of sediment scour near the closed channel is the largest. The increase of velocity and the area of sediment strong scour area were the second when the closed door and the Xiandong fishing port project existed simultaneously, but the increase of velocity and the area of sediment strong scour area were the smallest when the single project was constructed. Compared with the other two scenarios, when a single closed fishing port is built, the hydrodynamic conditions near the closed channel are the strongest, and the high velocity water results in turbulent sediment deposition at the bottom, resulting in muddy water quality. It has a great negative effect on the growth of algae and zooplankton around it, and also reduces the production of porphyra kelp culture area and cage culture area, and it also has a great impact on the distribution of spawning area of large yellow croaker (Pseudosciaena Crocea). Considering synthetically, the construction of Xiandong fishing port is more reasonable, but the location of closed fishing port has problems.
【作者單位】： 上海海洋大學(xué)海洋科學(xué)學(xué)院;
【基金】：農(nóng)業(yè)部2014年漁業(yè)資源保護和轉(zhuǎn)產(chǎn)轉(zhuǎn)業(yè)項目(D8006158005)資助
【分類號】：P731.2;TV148;U658.6

【相似文獻】

相關(guān)碩士學(xué)位論文 前1條

1 吳園園;海陽中心漁港工程附近海域水動力及泥沙沖淤數(shù)值模擬[D];中國海洋大學(xué);2014年

，

本文編號：2319606