Nutrient status of overlying water and sediment of West Lake, Hangzhou, China

HydroResearch Pub Date : 2024-01-01 DOI:10.1016/j.hydres.2023.12.001

Qingjun Fang , Yadong Tang , Jiying Zhu , Huan Liao , Xiaopei Du , Guoliang Bai , Hang Yang , Zhenbin Wu , Yi Zhang

{"title":"Nutrient status of overlying water and sediment of West Lake, Hangzhou, China","authors":"Qingjun Fang , Yadong Tang , Jiying Zhu , Huan Liao , Xiaopei Du , Guoliang Bai , Hang Yang , Zhenbin Wu , Yi Zhang","doi":"10.1016/j.hydres.2023.12.001","DOIUrl":null,"url":null,"abstract":"<div><p>A comprehensive investigation of the physicochemical properties of overlying water and sediments in Hangzhou West Lake, China was conducted. A wide range of crucial physical parameters were analyzed, revealing significant spatial and seasonal differences. Total nitrogen (TN), total phosphorus (TP), and chemical oxygen demand (COD) concentrations in overlying water met the Class III limits (TN ≤2 mg/L, TP ≤0.2 mg/L, COD ≤20 mg/L) of the Environmental Quality Standard for Surface Waters (GB3838–2002), indicating relatively good overall water quality. However, concerns were raised regarding potential eutrophication, particularly evident during summer with explosive chlorophyll-a growth in certain lake areas like WH (266 mg/L) and XLH (239 mg/L). Lakes receiving direct diversion showed lower TN and TP versus non-diverted lakes. This research provides valuable insight into the complex nutrient dynamics and conditions of West Lake, improving understanding of lake ecosystem management and sustainable conservation strategies.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"7 ","pages":"Pages 55-70"},"PeriodicalIF":0.0000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589757823000380/pdfft?md5=5480f8640372056c061827438ecda375&pid=1-s2.0-S2589757823000380-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"HydroResearch","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2589757823000380","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

A comprehensive investigation of the physicochemical properties of overlying water and sediments in Hangzhou West Lake, China was conducted. A wide range of crucial physical parameters were analyzed, revealing significant spatial and seasonal differences. Total nitrogen (TN), total phosphorus (TP), and chemical oxygen demand (COD) concentrations in overlying water met the Class III limits (TN ≤2 mg/L, TP ≤0.2 mg/L, COD ≤20 mg/L) of the Environmental Quality Standard for Surface Waters (GB3838–2002), indicating relatively good overall water quality. However, concerns were raised regarding potential eutrophication, particularly evident during summer with explosive chlorophyll-a growth in certain lake areas like WH (266 mg/L) and XLH (239 mg/L). Lakes receiving direct diversion showed lower TN and TP versus non-diverted lakes. This research provides valuable insight into the complex nutrient dynamics and conditions of West Lake, improving understanding of lake ecosystem management and sustainable conservation strategies.

查看原文本刊更多论文

中国杭州西湖上覆水体和沉积物的营养状况

对中国杭州西湖上覆水体和沉积物的物理化学性质进行了全面调查。分析了一系列重要的物理参数，发现了显著的空间和季节差异。上覆水体中的总氮（TN）、总磷（TP）和化学需氧量（COD）浓度达到了《地表水环境质量标准》（GB3838-2002）的 III 类限值（TN ≤2 mg/L、TP ≤0.2 mg/L、COD ≤20 mg/L），表明总体水质较好。然而，人们对潜在的富营养化问题表示担忧，尤其是在夏季，某些湖区的叶绿素-a 出现爆炸性增长，如 WH（266 mg/L）和 XLH（239 mg/L）。与未分流的湖泊相比，直接分流的湖泊显示出较低的 TN 和 TP。这项研究为深入了解西湖复杂的营养动态和状况提供了宝贵的资料，有助于加深对湖泊生态系统管理和可持续保护战略的理解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

HydroResearch

CiteScore

9.20

自引率

0.00%

发文量