滇西北香格里拉森林4个建群种的含碳率  

Carbon content rate in dominant species of four forest types in Shangri-la,northwest Yunnan province

作　　者：王金亮[1] 王小花[1] 岳彩荣[2] 程峰[1] 徐天蜀[2] 程鹏飞[1] 王雪梅[1] 高雁[1] 

机构地区：[1]云南师范大学旅游与地理科学学院,云南昆明650092 [2]西南林业大学资源学院,云南昆明650000

出　　处：《生态环境学报》2012年第4期613-619,共7页Ecology and Environmental Sciences

基　　金：国家自然科学基金项目(40861009);云南省中青年学术技术带头人培养项目(2008PY056)

摘　　要：森林群落的生物量及其组成树种的含碳率是研究森林植被碳储量2个关键因子,对其测定可为估算区域和全国森林生态系统碳储量的提供依据。采用重铬酸钾容量法对滇西北香格里拉县4主要树种的含碳率进行了测定,并对不同树种不同林龄不同器官的含碳率进行分析。结果表明:4树种中,云南松Pinus yunnanensis的林分平均含碳率最大达到51.48%,其次是高山松Pinus densata 51.31%,冷杉Abies georgei 50.79%,川滇高山栎Quercus aquifolioides的含碳率最小为48.71%,通过统计检验,4树种之间的含碳率差异显著;同一树种不同林龄之间的含碳率也存在着差异,但是变化较小,均未超过3%;不管是同一树种不同器官之间还是同一器官不同树种之间的含碳率都存在差异,但含碳率变化不大,变异系数均未超过6%;针叶树种平均含碳率普遍高于阔叶树种。The biomass and carbon content rate of trees of forest communities are two key factors in research on forest vegetation carbon storage.Their measurement is the basis for estimating forest carbon storage at both regional and country levels.The carbon content of four main tree species in northwest Yunnan（Shangri-la） were measured based on the standard solution of potassium dichromate method,and the carbon content rate in different tree species,different aged stands and different organs were analyzed.The results indicated that the carbon content rates of these tree species were 51.48%,51.31%,50.79% and 48.71% respectively in Pinus yunnanensis,Pinus densata,Abies georgei and Quercus aquifolioides.The carbon content varied slightly among different aged stands of the same tree species,but the differences were slight and not exceed 3%.Also the carbon content rate varied with different organs in the same tree species and the same organs in different tree species,but these differences were also small and did not exceed 6%.The experimental results also showed that the carbon content rates in conifer stands were higher than that of the broadleaf stands.

关 键 词：含碳率 森林类型 器官 林龄 香格里拉 

分 类 号：S718.55[农业科学—林学]