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当前位置: 首页 > 文章 > 不同类型林地土壤颗粒态有机碳和黑碳的分布特征 浙江大学学报(农业与生命科学版) 2011,37 (2) 193-202
Position: Home > Articles > Distribution characters of particulate organic carbon and black carbon in soils under different forestry vegetations Journal of Zhejiang University (Agriculture and Life Sciences) 2011,37 (2) 193-202

不同类型林地土壤颗粒态有机碳和黑碳的分布特征

作  者：
王阳;章明奎
单  位：
温州科技职业学院;浙江大学环境与资源学院浙江省亚热带土壤与植物营养重点研究实验室
关键词：
自然保护区;森林土壤;碳库;颗粒态有机质;黑碳;分布特征
摘  要：
为了解不同类型植被对森林土壤有机碳库及有机碳稳定性的影响,从浙江省泰顺县乌岩岭自然保护区采集6类自然植被(常绿阔叶林、常绿落叶阔叶林、针叶林、针阔混交林、灌草丛、毛竹)下的土壤剖面,分层分析土壤有机碳总量、颗粒态有机碳(POM-C)和黑碳碳库的分布特征,并与当地农业土壤进行比较.结果表明:1 m土体中有机碳总量由高至低分别为常绿阔叶林(53.95 kg·m-2)>常绿落叶阔叶林(52.87 kg·m-2)>灌草丛(39.22 kg·m-2)>针阔混交林(38.50 kg·m-2)>针叶林(29.57 kg·m-2)>毛竹(21.00 kg·m-2)>农地(15.68 kg·m-2);POM-C贮量由高至低也有相似的趋势;黑碳贮量由高至低依次为:常绿阔叶林(5.54 kg·m-2)、常绿落叶阔叶林(5.54 kg·m-2)>农地(4.22 kg·m-2)>灌草丛(3.68 kg·m-2)>针阔混交林(3.10 kg·m-2)>针叶林(2.60 kg·m-2)>毛竹(2.10 kg·m-2);农用地颗粒态有机碳占总碳的比例明显低于林地土壤,而黑碳占总碳的比例则明显高于林地,表明农用地土壤有机碳的稳定性明显高于森林土壤;当林地开垦转变为农用地后,POM-C优先比其他土壤有机碳分解和下降,而黑碳却有增加的趋势.
译  名：
Distribution characters of particulate organic carbon and black carbon in soils under different forestry vegetations
作  者：
WANG Yang1,ZHANG Ming-kui2(1.Wenzhou Vocational College of Science and Technology,Wenzhou,Zhejiang 325006,China;2.Zhejiang Provincial Key Laboratory of Subtropical Soil and Plant Nutrition,College of Environmental and Resource Sciences,Zhejiang University,Hangzhou 310058,China)
关键词：
nature reserve;forestry soil;carbon pool;particulate organic matter;black carbon;distribution character
摘  要：
To understand the effects of vegetation types on soil particulate organic carbon and black carbon,samples of soil profiles under six types of forestry vegetations were collected from Wuyanling nature reserve,Taishun County,Zhejiang Province.The contents of total organic carbon,particulate organic carbon and black carbon in the soils were characterized,and compared with those of local upland soil.Storages of total organic C in 1 m depth soil decreased in the sequence of evergreen broad-leaved forest(53.95 kg·m-2) > evergreen deciduous broad-leaved forest(52.87 kg·m-2) > shrub(39.22 kg·m-2) > coniferous and broad-leaved mixed forest(38.50 kg·m-2) > coniferous forest(29.57 kg·m-2) > bamboo land(21.00 kg·m-2) > upland(15.68 kg·m-2).That of particulate organic C in 1 m depth soils also had same sequence.Storages of black C in 1 m depth soils decreased in the order of evergreen broad-leaved forest(5.54 kg·m-2),evergreen deciduous broad-leaved forest(5.54 kg·m-2) > upland(4.22 kg·m-2) > shrub(3.68 kg·m-2) > coniferous and broad-leaved mixed forest(3.10 kg·m-2) > coniferous forest(2.60 kg·m-2) > bamboo land(2.10 kg·m-2).The proportions of soil total organic C as particulate organic C in upland was significantly lower than those in the forestry lands,and those of soil total organic C as black C in upland was significantly higher than those in the forestry lands.The results above suggest that stability of soil organic C in the upland is greater than that in the forest lands,and particulate organic C is preferentially decomposed,and black C tended to be accumulated as forest land is transformed into upland.

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