广南县杉木林碳汇量及其空间分配特点研究  

Carbon Sink of Cunninghamia lanceolate Forest and Its Distribution Characteristics in Guangnan County

作　　者：罗开华[1] 田昆[2] 付小勇[3] 周晓[4] LUO Kaihua;TIAN Kun;FU Xiaoyong;ZHOU Xiao(Forest Management Branch of Yunnan Forest Inventory and Planning Institute, Kunming 650021, China;National Plateau Wetlands Research Center, Southwest Forestry University, Kunming 650224, China;Southwest Forestry University, Kunming 650224, Chin;Yunnan Academy of Forest, Kunming 650204, China)

机构地区：[1]云南省林业调查规划院营林分院,云南昆明650021 [2]西南林业大学国家高原湿地研究中心,云南昆明650224 [3]西南林业大学,云南昆明650224 [4]云南省林业科学院,云南昆明650204

出　　处：《林业调查规划》2018年第1期30-33,38,共5页Forest Inventory and Planning

摘　　要：碳储量数据是研究许多林业问题和生态问题的基础。在收集前人研究资料、野外实地调查数据与森林资源二类调查资料的基础上,构建了广南县杉木林各器官碳储量估测模型、林分碳储量估测模型,并运用所构建模型进行林分碳储量估测;基于Arc GIS平台分析广南县杉木林碳汇量的分配特点。结果表明,广南县现有杉木林碳汇量为45.6万t。杉木碳汇量在空间上的分配受海拔、坡度、坡位等的影响。从海拔来看,杉木林碳汇量主要分布在1 000～1 600 m,碳汇量合计为41.1万t,占总碳汇量的90%以上;从坡度来看,碳汇量集中在坡度15°～35°,碳汇量为43.8万t,约占杉木林全部碳汇量的96.0%;从坡位来看,在平地上杉木碳汇量很小,在山地上碳汇量为45.1万t,约占杉木林总储量的98.9%。Carbon sink data is the basis for studying many forestry and ecological problems. Based on the data of predecessors＇ research, field survey and forest resource inventory and planning, this paper built the carbon sink estimation model of different organs and forest stand to estimate the reserves of Cunning- hamia lanceolate forest carbon in Guangnan County. The distribution characteristics of Cunninghamia lanceolate forest carbon in Guangnan County were analyzed according to ArcGIS platform. The results showed that the amount of Cunninghamia lanceolate forest carbon in Guangnan County was 456, 000 t and its distribution was affected by altitude, gradient, slope position and so on. The carbon sink of Cun- ninghamia lanceolate forest mainly distributed between 1000m and 1600m, with a total carbon sink of 411000 t, accounting for more than 90% of the total carbon sink, and distributed in the slope of 15 ° ~ 35 ° , with a total carbon sink of 438000 t, accounting for about 96.0% of the total carbon sink. The car- bon sink was very small on the plain, and mainly distributed on the mountain with a total carbon sink of 451000 t, accounting for 98.9% of the total carbon sink.

关 键 词：杉木林 碳汇量 空间分配特点 海拔 坡度 坡位 广南县 

分 类 号：S791.27[农业科学—林木遗传育种] P461.7[农业科学—林学]