江西省亚热带常绿阔叶林碳储量和碳密度的影响因子  

Carbon Storage and Carbon Density Impact Factor of Subtropical Evergreen Broad-leaved Forests in Jiangxi Province

作　　者：张秋根[1] 任超 王苏琴[1] 肖妮娜 曹群[1] ZHANG Qiu-gen;REN Chao;WANG Su-qin;XIAO Ni-na;CAO Qun(School of Environment and Chemistry Engineering,Nanchang Hangkong University,Nanchang 330063,China)

机构地区：[1]南昌航空大学环境与化学工程学院,南昌330063

出　　处：《南昌航空大学学报（自然科学版）》2018年第4期86-92,共7页Journal of Nanchang Hangkong University(Natural Sciences)

基　　金：国家自然科学基金(41463005);江西省重点研发计划项目(20181ACG70021)

摘　　要：以江西省井冈山、九连山、大岗山3个自然保护区内的苦槠栲林、木荷林和青冈栎林3种典型的亚热带常绿阔叶林为研究对象,通过实地调查样地的森林碳储量(碳密度)和调查标准样地的生物因子、地理因子,分析了森林碳密度与生物因子和地理因子的影响关系;通过遥感估算样地所在区域1985—2015年的森林碳储量(碳密度)和收集样地所在区域1985—2015年的气候因子,分析了森林碳密度与气候因子的影响关系。研究结果表明:江西省亚热带常绿阔叶林植被碳密度与经度有显著相关性,土壤碳密度与经度的相关性不明;植被碳密度不受纬度的影响;土壤碳密度与纬度有相关性;植被碳密度与坡度、海拔相关性不明;土壤碳密度与坡度有相关性,但与海拔的相关性不明;植被碳储量与林龄和植被层具有显著的相关性;植被和土壤的碳密度随着气温的上升而增加,反之减少;植被的碳密度随着降雨量、日照时长的增加而增加,反之减少;而土壤碳密度不受降雨量和日照时长的影响。Three typical subtropical evergreen broad-leaved forest were taken as the object which including Castanopsis sclerophylla forest,Cyclobalanopsis glauca forest and Schima superba forest. They are growing in Jinggangshan nature reserves,Jiuliansshan nature reserves and Dagangshan nature reserves in Jiangxi Province. The influence relation was analyzed between forest carbon density and biological factors,geographical factor through the investigation of forest carbon storage (carbon density),the biological factor and geographical factor in the sample plot. The influence relation of forest carbon density and climate factor were analyzed through remote sensing estimating forest carbon storage (carbon density) and collecting the climate factor date in the sample plot region from 1985 to 2015. The result showed there was a significant correlation between the carbon density and longitude,while the correlation between soil carbon density and longitude was unknown. The vegetation carbon density was not affected by latitude,while soil carbon density was correlated with latitude. The correlation between vegetation carbon density and slope and elevation was unknown,while soil carbon density was correlated with slope,but the correlation with altitude was unknown. There was a significant correlation between the vegetation carbon storage and the age of stand and the vegetation layer. The carbon density of vegetation and soil were increasing with the rise of temperature,on the contrary,it was reducing. The carbon density of vegetation was increasing with the increase of rainfall and sunshine lengthy. On the contrary,it was reducing. Soil carbon density was not affected by rainfall and sunshine.

关 键 词：碳储量 碳密度 常绿阔叶林 地理因子 生物因子 气象因子 

分 类 号：S718.5[农业科学—林学]