2019一2023年合流水库水质动态变化及其影响因子研究

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Water Quality Dynamic Changes and Their Impact Factors in Heliu Reservoir During 2019-2023

WANG Xiao-hui， HUANG Quan-ping， XIE Tian et al （Zhanjiang Hydrology Branch of Guangdong Hydrology Bureau，Zhanjian Guangdong ）

AbstractInordertograspthechangingtrendandifluencingfactorsofwaterqualityidicesiHluReservoirquarterlysueywasconductedduring2O19-223tomonitorthedynamicsofmainwaterqualityindices.TeresultsshowedthatHeliuReservoirwasinthestateof mediumnutiototemodeateutrocatiostateduring19-O.Thoncentratiosoftotalitrogentotalposhousadcop hensivetrophiclevelindexallshowedanoverallupwardtrend.Waterqualtyindicesandcomprehensivetrophiclevelindexduring2019- 2023presentedbsasalags，ctatiosoftotalenotlposousoagendolsel asthecomprehensivetroiclevelidexwerealligherinemainfloodsasohaninedrysasonTheoelationaalysissoedthat thechlooph-caiielseselyatlsiieleadihalpoosoaeit wasnegativelyoeaiaspyutitdoiitreoiasspagaateemog concentration，total nitrogen concentration，water temperature， ΔpH . Heliu Reservoir is a phosphorus restricted reservoir.

KeyWordsHeliReservoir;Waterquality;Comprehensivetrohiclevelindex;Nutrint;Meteorologicalandhydrologicalonditios

湛江地处我国大陆最南端的雷州半岛，三面环海，受热带季风气候的影响，该区域内降雨充沛，但具明显的季节性特征， 80% 的降雨量集中在4一9月，导致季节性缺水严重。（剩余6382字）