安太堡露天煤矿刺槐人工林乔木层碳密度动态特征  

Carbon Density Dynamics of the Tree Layer of Robinia pseudoacacia Plantation in Antaibao Opencast Coal Mine

作　　者：郭春燕 曹银贵[2] 武玉珍 张谨华 吴琼 张峰[3] GUO Chunyan;CAO Yingui;WU Yuzhen;ZHANG Jinhua;WU Qiong;ZHANG Feng(School of Biology Science and Technology,Jinzhong Universiy,Jinzhong 030600,China;School of Land Science and Technology,China University of Geosciences,Bejing 100083.China;Institute of Loess Plateau,Shanxi University,Taiyuan 030006,China)

机构地区：[1]晋中学院生物科学与技术系,山西晋中030600 [2]中国地质大学土地科学技术学院,北京100083 [3]山西大学黄土高原研究所,山西太原030006

出　　处：《山西大学学报（自然科学版）》2022年第2期487-493,共7页Journal of Shanxi University(Natural Science Edition)

基　　金：国家自然科学基金(U1810107)。

摘　　要：刺槐人工林在水土保持与生态修复中发挥着重要作用,为探明其乔木层碳密度变化规律,文章对安太堡露天煤矿复垦区3种刺槐人工林乔木层结构进行了调查,并分析其碳密度,结果显示:刺槐+油松林乔木层碳密度最高,年均增加1.849 t·hm^(-2),其次为刺槐+榆+臭椿林,年均增加0.773 t·hm^(-2),刺槐纯林碳密度最低,年均增加0.674t·hm^(2)。刺槐人工林乔木层碳密度增加明显,但总体树高增长缓慢。这表明针阔混交模式最佳,阔叶混交林优于阔叶纯林模式,刺槐人工林已由中龄林阶段逐渐进入成熟林阶段。Robinia pseudoacacia plantation played an important role in soil and water conservation and ecological rehabilitation.The carbon density of the tree layer of three R.pseudoacacia plantations in the Antaibao Opencast Coal Mine reclamation area,Shanxi were studied through field investigation and data analysis.The results showed that:the carbon density of Robinia pseudoacacia+Pinus tabulaeformis plantation was the highest,with an average increase by 1.849 t·hm^(-2) per year,followed by Robinia pseudoacacia+Ulmus pumila+Ailanthus altissima plantation,with an average increase by 0.773 t·hm^(-2) per year.The Robinia pseudoacacia plantation was the lowest,with an average increase of 0.674 t·hm^(-2) per year.The carbon density of the tree layer increased significantly,but the whole tree height increased slowly.It showed that the coniferous and broad-leaved mixed model was the best,and the broad-leaved mixed model was better than the pure broad-leaved model.The R.pseudoacacia plantation had gradually entered the mature forest stage from the middle-aged forest stage.

关 键 词：碳密度 生物量 乔木层 刺槐人工林 

分 类 号：X752[环境科学与工程—环境工程]