人民长江
人民長江
인민장강
YANGTZE RIVER
2015年
15期
41-45,73
,共6页
邓敏慧%刘晓婉%夏玉强%顾立群
鄧敏慧%劉曉婉%夏玉彊%顧立群
산민혜%류효완%하옥강%고립군
温排水扩散%扩散范围%应对措施%长江口
溫排水擴散%擴散範圍%應對措施%長江口
온배수확산%확산범위%응대조시%장강구
thermal discharge diffusion%diffusion scope%countermeasures%Yangtze River estuary
水温是影响水域生态系统健康的重要因子，以长江口某电厂温排水为例，采用MIKE21模型对不同水文条件下电厂温排水扩散影响进行数值模拟。模拟结果显示：电厂温排水温升扩散呈现出高温升影响范围小、低温升影响较大的规律；温升影响面积从大到小依次为冬季小潮、夏季大潮、冬季大潮；涨潮时期排水口温升对上游影响较大，而落潮过程中温升向下游扩散，影响范围较涨潮更大。研究成果对电厂管理及长江口海域生态系统健康的保护具有重要的参考意义。
水溫是影響水域生態繫統健康的重要因子，以長江口某電廠溫排水為例，採用MIKE21模型對不同水文條件下電廠溫排水擴散影響進行數值模擬。模擬結果顯示：電廠溫排水溫升擴散呈現齣高溫升影響範圍小、低溫升影響較大的規律；溫升影響麵積從大到小依次為鼕季小潮、夏季大潮、鼕季大潮；漲潮時期排水口溫升對上遊影響較大，而落潮過程中溫升嚮下遊擴散，影響範圍較漲潮更大。研究成果對電廠管理及長江口海域生態繫統健康的保護具有重要的參攷意義。
수온시영향수역생태계통건강적중요인자，이장강구모전엄온배수위례，채용MIKE21모형대불동수문조건하전엄온배수확산영향진행수치모의。모의결과현시：전엄온배수온승확산정현출고온승영향범위소、저온승영향교대적규률；온승영향면적종대도소의차위동계소조、하계대조、동계대조；창조시기배수구온승대상유영향교대，이락조과정중온승향하유확산，영향범위교창조경대。연구성과대전엄관리급장강구해역생태계통건강적보호구유중요적삼고의의。
The water temperature is a vital factor to the health of aquatic ecosystems. Taking a power plant located in Yangtze River estuary as an example, we simulate thermal discharge diffusion under different hydrological conditions by using MIKE21 model. The analysis results show that the influence of high temperature rise is small while the impact of low temperature rise is large. The rank from large to small of influenced area is winter neap, summer spring-tide and winter spring-tide. And the temperature rise at the discharge outlet has greater impact on the upstream during high tide, while in ebb tide, the temperature rise impact scope to the downstream is more large, so the influenced area becomes larger as well. The results are helpful to pro-tecting the health of ecosystem as well as the regulation of power plants in Yangtze River estuary.
