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1、摘要河流的水质不仅受到来自生活、工业、农业等人类社会、经济活动的影响,还跟河流本身的水文条件等自然因素影响。譬如:河流的含沙量、径流量以及潮汐变化规律对河流的水质(如:化学需氧量、氨氮、总磷等水质指标)产生直接的影响河流的水文要素在河流的自净能力上发挥着的重要的作用,掌握好河流的水文要素对水质影响的规律,处理好两者之间的关系,可以增强河流的自净能力。河流水文要素包括:河流的水位水深、流速流量、降水情况、含沙量、潮汐变化规律、丰枯水期变化等,本文以佛山市三水区西南涌为调查研究对象,采取跟踪调查以及收集相关部门的相关数据、资料、报告和工作总结等手段,研究水文要
2、素对西南涌水质影响,弄清楚西南涌的地形、水系、气候等自然情况及其降水特性、蒸发量、水位、洪水量等水文特性;经过一段时间对西南涌上下游分段布设断面取样监测,对数据统计,对比分析,掌握了这些水文要素的变化规律对西南涌水质的影响,在此基础上总结了西南涌的污染控制措施。关键词:水文要素,西南涌,水质,监测IVAbstractNotonlybywaterfromtheriveroflife,industry,agricultureandhumansociety,theimpactofeconomicactivities,evenwenttothehydrologic
3、alconditionsoftheriveritself,andothernaturalfactors.Forexample:theriversedimentrunoffandtidalchangesofthewaterqualityofrivers(suchas:chemicaloxygendemand,ammonianitrogen,totalphosphorusandotherwaterqualityindicators)haveadirectimpactelementsinriverhydrologyriverself-purificationab
4、ilitytoplayimportantroleinmasteringtheriverwaterqualityandhydrologicalfactorsaffectingthelaw,dealwiththerelationshipbetweenthetwo,canenhanceself-purificationcapacityofrivers.Riverhydrologyelementsinclude:thewaterlevelofriverwaterdepth,flowvelocity,precipitationconditions,sedimentc
5、oncentration,tidalvariation,changesindroughtperiods,thispaperFoshanSanshuidistrictsouthwestBaystudyfortheinvestigationandtakefollow-upsurveyandthecollectionofrelevantdepartmentsrelevantdata,information,reports,andsummaryofthework,andothermeansofhydrologicalfactorsonthesouthwestBay
6、waterqualityimpact,clearsouthwestBayofterrain,water,climateandothernaturalfeaturesanditsprecipitation,evaporation,waterlevel,floodsandotherhydrologicalcharacteristicsoftheamount;afteraperiodoftimetooktothedownstreamsectionofthesouthwestsectionofsamplingmonitorlayout,statisticaldat
7、a,comparativeanalysis,controlelementsofthesehydrologicalchangesofthewaterqualityofthesouthwestBay.Keywords:Hydrologicalfactors,SouthwestBay,Waterquality,MonitoringIV目录1.绪论12.西南涌的自然概况32.1地形地貌32.2水系32.3气候33.水文特性分析53.1降水53.2蒸发53.3水位水深63.4暴雨洪水73.5潮汐变化规律83.5.1高高潮位变化83.5.2低低潮位变化93.6径流特性
8、93.7泥沙量104.西南涌水文要素对水质的影响分析124.1河水