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Position: Home > Articles > Carbon and nitrogen storage under different forest ecosystems in mid-subtropical regions Chinese Journal of Eco-Agriculture 2010,18 (3) 576-580

中亚热带几种典型森林生态系统碳、氮储存功能研究

作  者:
王华;黄宇;汪思龙;邹冬生
单  位:
中国科学院沈阳应用生态研究所;湖南省科技厅;湖南农业大学生物科学技术学院
关键词:
中亚热带;森林生态系统;碳、氮储存功能;次生常绿阔叶林;杉阔混交林;杉木纯林
摘  要:
采用定位研究方法,从生态系统服务功能角度,对比研究了中亚热带区域7种典型森林生态系统碳、氮储存功能。结果表明,次生常绿阔叶林碳、氮储存功能最强,杉阔混交林碳、氮储存功能比同林龄的杉木纯林强,而第1代杉木纯林碳、氮储存功能强于连栽杉木纯林。生态系统碳、氮储存功能空间分布基本一致,土壤层是主要部分,其次为乔木层,然后是根系,林下植被层和凋落层所占比例最小。相关分析表明,土壤碳、氮储存功能与林下植被生物量、森林凋落物现存量之间都具有良好的线性关系,但与地下部分生物量相关性不明显。
译  名:
Carbon and nitrogen storage under different forest ecosystems in mid-subtropical regions
作  者:
WANG Hua1,HUANG Yu2,WANG Si-Long3,ZOU Dong-Sheng1 (1.College of Bioscience and Biotechnology,Hunan Agricultural University,Changsha 410128,China;2.Hunan Province Science and Technology Department,Changsha 410013,China;3.Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016,China)
关键词:
Mid-subtropical region,Forest ecosystem,Carbon and nitrogen storages,Secondary evergreen broad-leaved forest,Mixed broad-leaved and Chinese-fir forest,Pure Chinese-fir forest
摘  要:
A comparative study on carbon (C) and nitrogen (N) storages under different typical forest ecosystems in mid-subtropical regions was conducted in 2006 via a localized method.The results show that C and N storages are highest under natural secondary evergreen broad-leaved forests.C and N storages in mixed broad-leaved and Chinese-fir forests are greater than in pure Chinese-fir forests.First rotation of pure Chinese-fir stands has higher C and N storages compared with successive pure Chinese-fir stands.Spatial distribution of C and N storages is basically consistent,and declines across the layers from soil,to tree,root,understory and to litter.Soil layer C and N storages are respectively positively related with understory and litter biomass,but not obvious related with stand belowground biomass.

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