Title: Biomass distribution rule and productivity character of forest stand in Karst desertification area
Abstract:In order to carry out productivity character of vegetation in karst area after ecological restoration,after field investigation of 12 age forest stand of karst area of north Guilin,biomass spatial dis...In order to carry out productivity character of vegetation in karst area after ecological restoration,after field investigation of 12 age forest stand of karst area of north Guilin,biomass spatial distribution was studied by layer cutting method.Results showed that: 6 main trees could grow well in coal waste pile,and Robinia pseudoacacia L.had best growth index,the average DBH and height growth were 0.65 cm and 0.58 m,then it was Ligusrtum lucidum Ait,the average DBH and height growth were 0.63 cm and 0.43 m;Trunk biomass proportion of 4 arbors were Robinia pseudoacacia L.(78%),Ligusrtum lucidum Ait.(45),Ailanthus altissima Swingle(67%),Ulmus pumila L.(45%),Robinia pseudoacacia L.and Ailanthus altissima Swingle had obvious trunk and less branch;Branch and leaf index of 4 arbors were Ulmus pumila L.(0.41),Ligusrtum lucidum Ait.(0.40),Ailanthus altissima Swingle(0.26),Robinia pseudoacacia L.(0.15),Ulmus pumila L.and Ligusrtum lucidum Ait.had bigger potential productivity to utilization of light;Crown and root rate of 6 trees were Robinia pseudoacacia L.(2.24),Ligusrtum lucidum Ait.(2.64),Ailanthus altissima Swingle(3.88),Ulmus pumila L.(2.76),Ilex purpurea Hassk.(1.39),Ziziphus jujuba var.spinosa(Bunge)Hu(4.56),which showed that Ziziphus jujuba var.spinosa(Bunge)Hu had best adjustable capability;Robinia pseudoacacia L.had largest individual biomass of 21.61 kg/tree,then it followed Ligusrtum lucidum Ait.,Ailanthus altissima Swingle,Ulmus pumila L.,Ilex purpurea Hassk.and Ziziphus jujuba var.spinosa(Bunge)Hu,the smallest individual biomass was Ziziphus jujuba var.spinosa(Bunge)Hu of 2.89 kg/tree;Forest stand biomass of 6 trees were: Ligusrtum lucidum Ait.Robinia pseudoacacia L.Ilex purpurea Hassk.Ailanthus altissima Swingle Ulmus pumila L.Ziziphus jujuba var.spinosa(Bunge)Hu,Robinia pseudoacacia L.and Ligusrtum lucidum Ait.biomass reached to 42 139 kg/hm2 and 50 522 kg/hm2.Read More
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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