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基于第8次森林资源清查数据的安徽森林碳储量特征研究
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  • 英文篇名:Characteristics of forest carbon storage in Anhui based on the 8th forest inventory data
  • 作者:王会荣 ; 李爱琴 ; 王晶晶 ; 徐小牛
  • 英文作者:WANG Huirong;LI Aiqin;WANG Jingjing;XU Xiaoniu;School of Forestry & Landscape of Architecture,Anhui Agricultural University;
  • 关键词:森林生物量 ; 碳储量 ; 碳密度 ; 安徽省
  • 英文关键词:forest biomass;;carbon storage;;carbon density;;Anhui province
  • 中文刊名:西北农林科技大学学报(自然科学版)
  • 英文刊名:Journal of Northwest A & F University(Natural Science Edition)
  • 机构:安徽农业大学林学与园林学院;
  • 出版日期:2019-01-14 09:36
  • 出版单位:西北农林科技大学学报(自然科学版)
  • 年:2019
  • 期:07
  • 基金:国家重点研发计划项目(2016YFD0600304);; 国家“973”计划项目(2010CB950602)
  • 语种:中文;
  • 页:84-92
  • 页数:9
  • CN:61-1390/S
  • ISSN:1671-9387
  • 分类号:S757.2
摘要
【目的】研究安徽森林植被碳储量的分布特征,为森林碳汇功能的评价提供依据。【方法】以安徽省第8次(2014年)森林资源清查数据为基础,采用生物量-蓄积量转换模型法和平均生物量法,结合不同树种含碳率,估算安徽森林植被的碳储量和碳密度,并分析了不同森林类型及不同林级、林种和起源的乔木林碳储量分布特征。【结果】安徽不同森林类型的总碳储量为8.51×10~7 t,平均碳密度为20.55 t/hm~2,其中竹林的碳密度最高,为37.33 t/hm~2。乔木林和竹林的碳储量分别为6.42×10~7和1.45×10~7 t,各占总碳储量的75.47%和17.02%;不同龄级乔木林中,中龄林碳储量最大,达2 490.92×10~4 t,约占乔木林总碳储量的40%;过熟林碳储量最小,为256.24×10~4 t,仅占乔木林总碳储量的3.99%,且表现出林龄越大碳密度越高的趋势。用材林和防护林的碳储量分别为3 798.04×10~4和2 205.68×10~4 t,共占乔木林碳储量的93.48%;各林种碳密度大小为特用林>防护林>用材林>经济林>薪炭林。天然林的面积(153.86×10~4 hm~2)略低于人工林(154.81×10~4 hm~2),但由于天然林的碳密度高于人工林,使得天然林的碳储量(3 476.50×10~4 t))反而高于人工林(2 946.29×10~4 t)。【结论】安徽省森林植被具有明显的碳汇能力,但其碳密度较低,应对现有森林进行科学抚育和管理,以提高森林的碳汇能力。
        【Objective】 The distribution characteristics of forest carbon stock in Anhui were studied to provide basis for evaluation of the forest function for carbon sink.【Method】 Based on the 8 th forest inventory data,the forest biomass carbon storage and carbon density were estimated for Anhui.The distribution characteristics according to dominant tree species, age class,forest type and origin were analyzed using the volume-derived biomass method and average-biomass method combined with carbon contents of different dominant tree species.【Result】 The total biomass carbon storage of forests was 8.51×10~7 t and average carbon density was 20.55 t/hm~2.Among different forest types,bamboo forests had the highest carbon density of 37.33 t/hm~2.The carbon storages of arbor forests and bamboo forests were 6.42×10~7 t and 1.45×10~7 t,accounting for 75.47% and 17.02% of the total carbon storage,respectively. Among different age arbor forests,the middle carbon forests had the largest carbon storage of 2 490.92×10~4 t and the over-ripe forests had the smallest carbon storage of 256.24×10~4 t,accounting for 40% and 3.99% of the total carbon storage of the arbor forests.The carbon density increased with age class of forest.The carbon storages of timber forests and protection forests were 3 798.04×10~4 t and 2 205.68×10~4 t, which together contributed 93.48% of the carbon storage of arbor forests.The carbon density was in the order of special-purpose forest>protection forest>timber forest>non-timber forest>firewood forest.The area of natural forests(153.86×10~4 hm~2) was slightly lower than that of planted forests(154.81×10~4 hm~2),but the carbon storage of natural forests(3 476.50×10~4 t) was higher than that of plantation(2 946.29×10~4 t) since the carbon density of natural forests was higher than that of planted forests.The carbon stock in natural forests was higher than in plantation forests.【Conclusion】 The forests in Anhui had high carbon sequestration potential,but the carbon density was low.Thus,scientific management and tending of existing forests are needed to increase carbon sink capacity of forests.
引文
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