长白山云冷杉针阔混交林土壤有机碳与土壤理化性质的相关性  

Soil Organic Carbon Content and Its Relations with Soil Physicochemical Properties of Spruce-fir Mixed Stands in Changbai Mountains

作　　者：宋彦彦[1] 张言[1] 管清成 徐丽娜 李英爱[1] 隋振环 隋海新 赵慧杰 Song Yanyan;Zhang Yan;Guan Qingcheng;Xu Lina;Li Yingai;Sui Zhenhuan;Sui Haixin;Zhao Huijie(Jilin Songjiangyuan Forest Ecosystem Research Station, Forest Survey and Design Institute of Jilin Province, Changchun 130022, P. R. China)

机构地区：[1]吉林松江源森林生态系统国家定位观测研究站(吉林省林业勘察设计研究院)

出　　处：《东北林业大学学报》2019年第10期70-74,共5页Journal of Northeast Forestry University

基　　金：国家林业公益性行业科研专项(201404303)

摘　　要：以长白山地区汪清林业局金沟岭林场3种不同针阔比的云冷杉混交林为研究对象,采用野外调查、样品采集、室内分析等相结合的方法,揭示了土壤有机碳以及土壤理化性质的剖面分布特征,探讨了有机碳与理化性质间的相关性。结果表明,长白山云冷杉针阔混交林土壤有机碳质量分数均值为38.84g·kg^-1、有机碳密度均值为13.89kg·m^-2;两者的剖面分布特征一致,均具有表聚性,即表层含量最高,随着土层加深逐渐下降;土壤含水率以及土壤全氮、全磷、全钾质量分数也均呈现逐渐降低趋势,而土壤密度和土壤pH值呈增加趋势;土壤有机碳与土壤密度呈极显著负相关,与土壤含水量、土壤全氮、全磷质量分数呈极显著正相关,与土壤pH值、全钾质量分数相关性不显著。With three types of spruce-fir mixed stands of different conifer-broadleaf ratio in Jingouling Forest Farm, Wangqing Forestry Bureau, Changbai Mountain area, we investigated the profile distribution characteristics of soil organic carbon and soil physic-chemical properties by field survey sample collection and indoor analysis, and discussed the correlation between organic carbon and physic-chemical properties. The average soil organic carbon content was 38.84 g·kg^-1 , and the soil organic carbon density was 13.89 kg·m^-2 , respectively. The profile distribution characteristics of both of them are consistent and both of them have surface aggregation, the content of the surface layer is the highest and decreases gradually with the deepening of the soil layer. Soil moisture content and contents of total nitrogen, total phosphorus and total potassium gradually decreased, while soil density and soil pH increased. Soil organic carbon mass fraction with soil water content, soil total nitrogen and total phosphorus mass fraction have an extremely significantly positive correlation ( p <0.01), and an extremely significantly negative correlation ( p <0.01) with soil density, and not significantly correlated with soil pH total potassium content.

关 键 词：云冷杉针阔混交林 土壤有机碳 土壤理化性质 

分 类 号：S714.5[农业科学—林学]