森林工程2018，Vol.34Issue(1)：1-5,5.
不同间伐强度下长白落叶松人工林土壤总有机碳特征及其影响因素
The Characteristics and Impact Factors of Different Thinning Intensity on Soil Total Organic in the Larix Olgensis Plantation
摘要
Abstract
In this study , field investigation and laboratory analysis were used to study the characteristics of soil total organic car -bon and physicochemical properties of Larix olgensis plantations under different thinning intensities , and to analyze the correlation be-tween them, which provide a scientific basis for better management of forest soil carbon pool and development of reasonable silviculture measures .The results show that: ①With the increase of soil depth , the total organic carbon content and carbon density of each treat-ment soil showed a significant vertical decline feature , and the total organic carbon content and carbon density of surface soil were sig-nificantly higher than that of the other two layers (p<0.05).②With the decrease of thinning intensity , stand density increased, soil total organic carbon content and carbon density decreased first and then increased , and the total organic carbon content and carbon density in intermediate thinning and light thinning soil were significantly higher than those in moderate thinning (p<0.05).③Accord-ing to the analysis of larch plantation under three thinning intensity , the total organic carbon content and carbon density of soil were positively correlated with soil total nitrogen (p<0.01).This indicated that soil carbon and nitrogen had a close relationship in soil .关键词
长白落叶松人工林/土壤总有机碳/土壤总有机碳密度/间伐强度/林分密度Key words
Larix olgensis/soil organic carbon/soil total organic carbon density/thinning intensity/stand density分类
农业科技引用本文复制引用
王琪瑶,李云红,刘延坤,陈瑶,田松岩,刘学..不同间伐强度下长白落叶松人工林土壤总有机碳特征及其影响因素[J].森林工程,2018,34(1):1-5,5.基金项目
国家自然科学基金项目(41475123) （41475123）
黑龙江省林业科学院青年基金项目(N201410) （N201410）
