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Inner Mongolia Agricultural University (内蒙古农业大学) 2021

Study on Biomass and Carbon Density of Artificial Shrubbery in Kubuqi Desert Area

郭玉东

Titre : Study on Biomass and Carbon Density of Artificial Shrubbery in Kubuqi Desert Area

Auteur : 郭玉东

Grade : Doctoral Dissertation 2021

Université : Inner Mongolia Agricultural University (内蒙古农业大学)

Résumé partiel
Shrubbery is the main type of forest vegetation in arid and semi-arid areas of China,which plays an irreplaceable role in preventing wind and fixing sand,conserving soil and water,purifying air and maintaining regional ecological security.The Kubuqi Desert is located in the arid and semi-arid inland area of northwest China,that is a typical ecological fragile area.Over the years,a large area of artificial shrubbery has been built in the Kubuqi Desert area,which plays a positive role in improving the regional ecological environment and maintaining the ecological balance,and also plays an important role in carbon sequestration.This study we select four typical artificial shrubbery(Caragana korshinskii,Hippophae rhamnoides,Salix psammophila and Corethrodendron fruticosum var.mongolicum)in Kubuqi Desert area as the research object,based on the Landsat8OLI remote sensing image data and sample plot survey data,using the method of stepwise regression,established four shrubbery remote sensing estimation model,and the biomass model method was used to construct biomass model of each organ,the above ground and whole plant for the four shrubs,and analysised the various organ biomass distribution characteristics.We estimated the carbon density of layer,herb layer,litter layer and soil layer in four kinds of artificial shrubbery,analysised the carbon library features in different levels,that can provide a basic reference to estimate carbon reservation of four shrubbery ecosystem systematically and accurately,and can provide scientific support for regional ecosystem conservation,restoration and reconstruction,evaluation of ecosystem service function accurately at the same time.

Mots clés : Kubuqi Desert ;Shrubbery;Biomass ;Regression equation ;Carbon density ;

Présentation (CNKI)

Page publiée le 17 février 2022