摘要
为探究城市森林冠层与大气金属输入的相互作用关系,深入了解城市人工林生态系统金属迁移的环境路径,对哈尔滨市区樟子松人工林内穿透雨、树干茎流以及大气降雨进行监测,测定其中的K、Ca、Na、Mg、Cu、Fe、Zn和Mn 8种金属,分析伴随降雨分配过程的金属浓度变化特征和在森林生态系统中的输入量。结果表明:(1)大气降雨经过森林冠层后,穿透雨中K、Na、Mg、Fe、Mn和Cu浓度增加,Ca和Zn浓度减小;树干茎流中,仅有Cu浓度减小。(2)樟子松人工林冠层对K、Ca、Cu和Zn起到过滤作用,而对Na、Mg、Fe和Mn起到淋溶作用。
In order to explore the interaction between urban forest canopy and atmospheric metal input,and get an full understanding of the environmental pathways of metal transportation in urban plantation ecosystems,the precipitation,throughfall and stemflow of the Mongolian scotch pine plantation in Harbin were monitored.The 8 metals(K,Ca,Na,Mg,Cu,Fe,Zn and Mn)were determined.The variation characteristics of metal concentrations and input into forest ecosystem were analyzed with precipitation redistribution.Results showed that:(1)precipitation after forest canopy,K,Na,Mg,Fe,Mn and Cu concentrations increased in throughfall,while Ca and Zn decreased.However,only Cu decreased in stemflow.(2)The forest canopy of Mongolian scotch pine plantation had filtration effect on K,Ca,Cu and Zn,while leaching effect on Na,Mg,Fe and Mn.
作者
盛后财
李奕
李华
SHENG Houcai;LI Yi;LI Hua(School of Forestry,Northeast Forestry University,Harbin Heilongjiang 150040;College of Materials and Chemical Engineering,Pingxiang University,Pingxiang Jiangxi 337055;Department of Biomedicine and Health,Shanghai Vocational College of Agriculture and Forestry,Shanghai 201600)
出处
《环境污染与防治》
CAS
CSCD
北大核心
2023年第7期935-939,946,共6页
Environmental Pollution & Control
基金
上海农林职业技术学院中青年领军人才培养计划项目(No.A2-0265-22-28)
上海农林职业技术学院科研项目(No.KT2-0000-20-14)
黑龙江省自然科学基金资助项目(No.LH2020C032)。
