长白山云冷杉混交林不同针阔比与土壤养分的关系  

Relationship between Different Conifer-broadleaf Ratio of Spruce-fir Mixed Stands and Soil Nutrients in Changbai Mountains

作　　者：贺燕[1] 张青[1] 亢新刚[1] 张梦弢[1] 徐光[2] 杨英军[2] 

机构地区：[1]北京林业大学,北京100083 [2]吉林省汪清林业局

出　　处：《东北林业大学学报》2015年第7期68-72,共5页Journal of Northeast Forestry University

基　　金：国家林业局"948"项目(2013-4-66)

摘　　要：以吉林省汪清林业局金沟岭林场云冷杉混交林为研究对象,运用模糊线性隶属度函数、主成分分析法,分析不同针阔比云冷杉林分土壤养分(有机质、全N、全P、全K、碱解N、有效P、速效K)质量分数差异及变动趋势。结果表明:随着阔叶树比例的增加,林分土壤p H增大;林分针阔比与土壤养分存在显著关联,针叶树种增加有利于土壤N和P积累;针阔比为7∶3时,土壤养分综合质量分数最高。With the spruce-fir mixed stands in Jingouling Forest Farm, Wangqing Forestry Bureau, Jilin Province, we measured the contents of soil organic matter, total N, total P, total K, available N, available P, available K and changing tendency of soil nutrients between different conifer-broadleaf ratio of spruce-fir mixed stands by the fuzzy linear membership function and the principal component analysis. With the increase of the proportion of deciduous tree, pH was increased. There was a significant correlation between soil nutrient and conifer-broadleaf ratio of spruce-fir mixed stands. The increase of conifer species was conductive to the accumulation of the N and P in the soil. The comprehensive soil nutrient content was the highest when the ratio was 7 ： 3.

关 键 词：云冷杉混交林 针阔比 土壤养分 

分 类 号：S758.53[农业科学—森林经理学]