摘要
森林植被的土壤层和枯落物层具有重要水文功能,以内蒙古中部地区的蛮汉山5种森林植被(樟子松人工林、油松人工林、华北落叶松人工林、白桦次生林和山杨次生林)为研究对象,从土壤层和枯落物层两方面分析5种森林植被的水文功能。结果表明:不同森林植被土壤的最大贮水深存在差异,由大到小依次为华北落叶松人工林(525.28 mm)、油松人工林(511.70 mm)、山杨次生林(490.63 mm)、白桦次生林(489.12 mm)、樟子松人工林(448.79 mm);土壤有效贮水深由大到小依次为:油松人工林(40.34 mm)、华北落叶松人工林(31.25 mm)、白桦次生林(30.69 mm)、山杨次生林(28.34 mm)、樟子松人工林(24.35 mm)。5种森林植被的枯落物现存量变化幅度为2.77~15.60 t·hm^(-2),枯落物最大持水深的变化幅度为0.42~2.78 mm,枯落物总持水深、半分解层持水深和未分解层持水深均呈现为:樟子松人工林>华北落叶松人工林>山杨次生林>白桦次生林>油松人工林。
The soil layer and litter layer of forest vegetation have important hydrological function.Taking five kinds of forest vegetation(Pinus sylvestris var.mongolica plantation,Pinus tabuliformis plantation,Larix gmelinii var.principis-rupprechtii plantation,Betula platyphylla secondary forest and Populus davidiana secondary forest)in Manhan Mountains in central Inner Mongolia as the research object,the hydrological function were analyzed from soil layer and litter layer.The results showed that the maximum water storing depth of soil was different,with an order of Larix gmelinii var.principis-rupprechtii plantation(525.28 mm)>Pinus tabuliformis plantation(511.70 mm)>Populus davidiana secondary forest(490.63 mm)>Betula platyphylla secondary forest(489.12 mm)>Pinus sylvestris var.mongolica plantation(448.79 mm).The effective water storing depth of soil was Pinus tabuliformis plantation(40.34 mm)>Larix gmelinii var.principis-rupprechtii plantation(31.25 mm)>Betula platyphylla secondary forest(30.69 mm)>Populus davidiana secondary forest(28.34 mm)>Pinus sylvestris var.mongolica plantation(24.35 mm).For five kinds of forest vegetation,the changing range of present stocking of litter was 2.77-15.60 t·hm^(-2),and that of the maximum water storing depth of litter was 0.42-2.78 mm.The total water holding depth,water holding depth of semi-decomposition layer and water holding depth of non-decomposition layer of litter were Pinus sylvestris var.mongolica plantation>Larix gmelinii var.principis-rupprechtii plantation>Populus davidiana secondary forest>Betula platyphylla secondary forest>Pinus tabuliformis plantation.
作者
高妍岭
邬向民
李金虎
张啸典
崔冉昕
GAO Yan-ling;WU Xiang-min;LI Jin-hu;ZHANG Xiao-dian;CUI Ran-xin(Inner Mongolia Academy of Forestry,Hohhot 010010,China;Shanggaotai Management Station of Inner Mongolia Daqingshan National Nature Reserve,Ulanqab 012314,China;Inner Mongolia Second Forestry and Grassland Monitoring and Planning Institute,Ulanhot 137400,China;Dengkou County Forestry and Grassland Resources Monitoring Center,Inner Mongolia,Bayannur 015200,China)
出处
《内蒙古林业科技》
2022年第2期39-43,共5页
Journal of Inner Mongolia Forestry Science and Technology
基金
内蒙古自治区关键技术攻关计划项目(2021GG0033)。
关键词
蛮汉山
典型森林
枯落物
土壤
水文功能
Manhan Mountains
typical forests
litter
soil
hydrological function
