宁远河流域森林碳储量空间分布特征  

The Spatial Distribution Characters of Forest Carbon Storage of Ningyuan River Basin

作　　者：孟伟[1] 陈彩虹[1] 胡焕香[1] 毛旭鹏[1] 陆禹[1] 

机构地区：[1]中南林业科技大学,湖南长沙410004

出　　处：《福建林业科技》2013年第1期12-16,39,共6页Journal of Fujian Forestry Science and Technology

基　　金：海南省林业局重点科研项目"海南省五大河流域植被恢复与保护规划研究"(LK20118478);湖南省"十一五"重点学科资助项目"森林经理学科"(2006-028-0015)

摘　　要：依据海南省2010年二类调查数据,利用蓄积—生物量转换因子法(Biomass Expansion Factor,BEF)估算宁远河流域森林资源的碳储量和碳密度,分析其空间分布特征。结果表明:宁远河流域森林资源总碳储量为1350094.78 t,平均碳密度为15.73 t.hm-2;受人为干扰和环境因素的影响,区域分布不均,响水镇碳密度最大,高达61.18 t.hm-2,新政镇和崖城镇最小,仅3 t.hm-2左右;各森林类型中,竹林碳密度最大,其次是阔叶混交林,经济林碳密度最小;幼、中龄林占森林总碳储量的89.69%,中龄林的碳密度最大;在自然度等级中的分布表现为Ⅱ级>Ⅳ级>Ⅲ级>Ⅰ级>Ⅴ级,碳密度随着自然度的增加而逐渐减小。表明减少人为干扰、加强林分管理是提高该流域碳储量的有效途径。Based on forest resource inventory data for management of Hainan Province in 2010,this paper used Biomass Expansion Factor BEF to estimate forest carbon storage and density of Ningyuan River Basin,as well as analysed it's spatial distribution.The result demonstrated that: there were 1350094.78 t of forest carbon storage in Ningyuan River Basin,the average forest carbon density was 15.73 t·hm-2;it's distributed unevenly under the influence of mankind and environment,the density of Xiangshui Town was largest about 61.18 t·hm-2,Xinzheng and Yacheng were least about 3 t·hm-2;the carbon density of bamboo forest was biggest for forest communities,the second was broadleaf mixed forest,the last was economic forest;the carbon storage of young and middle age forest stands accounted for 89.69% of the total storage of basin,the forest carbon density of middle-age was largest;the distribution in naturalness degree class was that Ⅱ>Ⅳ>Ⅲ>Ⅰ>Ⅴ,carbon density was decreased with naturalness degree class increasing.So reducing the influence of mankind and enhancing the management of forest were effective ways for raising carbon storage of the basin

关 键 词：碳储量 碳密度 分布特征 宁远河 

分 类 号：S718.5[农业科学—林学]