湖泊科学2024，Vol.36Issue(5)：1412-1424,13.DOI:10.18307/2024.0522
滨湖城市河网N2O溶存浓度、空间分布及对生态修复的响应
Concentration,spatial distribution,and response to ecological restoration of N2O in urban river networks of lakeside city
摘要
Abstract
With the increasing anthropogenic nitrogen input,urban river ecosystem has become an important source of atmospheric N2O.However,there is still insufficient analysis on the monitoring and influencing factors of N2O in typical river networks of lake-side city,especially for the quantitative evaluation of their response to the current widespread water ecological restoration projects.We chose the Binhu District of Wuxi City as a typical area to study the spatial distribution pattern and influencing factors of N2O dissolved in the urban river network,and to elucidate its response to ecological restoration.Results showed that:(1)the N2O con-centration in urban river network of lakeside city had significant spatial variability,with low value areas mainly located in the estu-ary area of the lake and in the river sections where water quality has significantly improved after ecological restoration;(2)The concentration of N2O was mainly affected by dissolved nitrogen in rivers,especially nitrate nitrogen;(3)The water quality and dissolved N2O concentration in river networks were affected by the dual effects of human pollution emissions and ecological restora-tion on water quality improvement.The ecological restoration of heavily polluted river sections could achieve both nutrient removal and N2O emission reduction.关键词
温室气体/城市河网/生态修复/人类活动Key words
Greenhouse gas/urban river network/ecological restoration/human activities引用本文复制引用
李玲玲,闫人华..滨湖城市河网N2O溶存浓度、空间分布及对生态修复的响应[J].湖泊科学,2024,36(5):1412-1424,13.基金项目
国家重点研发计划项目(2023YFC3208704)、国家自然科学基金项目(42001091,41842049,42371043,42071052)和中国科学院南京地理与湖泊研究所自主部署科研项目(NIGLAS2022GS10)联合资助. （2023YFC3208704）
