阴山北麓农牧交错区小叶锦鸡儿地上生物量模型构建  

Construction of Aboveground Biomass Model of Caragana microphylla in Agro-pastoral Ecotone of North Foot of Yinshan Mountain

作　　者：乔瑞芳 贾秀斌 杨跃文[2,3] 何小强 高艳利 QIAO Ruifang;JIA Xiubin;YANG Yuewen;HE Xiaoqiang;GAO Yanli(Hohhot Forestry and Grassland Bureau Comprehensive Security Center,Inner Mongolia,Hohhot 010070,China;Inner Mongolia Academy of Forestry Sciences,Hohhot 010010,China;Inner Mongolia Ordos Forest Ecosystem Research Station,Ordos 016100,China)

机构地区：[1]呼和浩特市林业和草原局综合保障中心,内蒙古呼和浩特010070 [2]内蒙古自治区林业科学研究院,内蒙古呼和浩特010010 [3]内蒙古鄂尔多斯森林生态系统国家定位观测研究站,内蒙古鄂尔多斯016100

出　　处：《内蒙古林业科技》2023年第2期18-22,共5页Journal of Inner Mongolia Forestry Science and Technology

基　　金：内蒙古鄂尔多斯森林生态系统国家定位观测研究站运行项目(2019132014)。

摘　　要：以阴山北麓地区小叶锦鸡儿(Caragana microphylla)人工灌木林为研究对象,在立地和林分调查的基础上,开展小叶锦鸡儿地上生物量预测模型研究,旨在为该区小叶锦鸡儿人工灌木林的抚育管理和资源有效利用提供科学依据。结果表明:平均冠幅(D)和灌丛高×冠幅面积(HC)2个指标作为自变量来拟合小叶锦鸡儿地上生物量效果最佳,预测模型精度检验的总相对误差(RS)、平均相对误差(EE)和平均相对误差绝对值(RMA)均小于20%,生物量模型W=1.150+D^(1.820)和W=1.067+(HC)^(0.785)可作为优化模型来估算阴山北麓地区小叶锦鸡儿的地上生物量。Taking the artificial shrub forest of Caragana microphylla at north foot of Yinshan Mountain as research object,on the basis of site and stand investigation,the prediction model of aboveground biomass of Caragana microphylla was studied in order to lay a foundation for the tending management and effective utilization of resources of Caragana microphylla artificial shrub forest in this area.The results showed that the average crown diameter(D)and shrub height×crown area(HC)were the best independent variables to fit the aboveground biomass of Caragana microphylla.The total relative error(RS),average relative error(EE)and average relative error absolute value(RMA)of the prediction model accuracy test were less than 20%,W=1.150+D^(1.820)and W=1.067+(HC)^(0.785)could be used as optimization models to estimate the aboveground biomass of Caragana microphylla at north foot of Yinshan Mountain.

关 键 词：人工灌木林 小叶锦鸡儿 地上生物量 模型 阴山北麓 

分 类 号：Q949.9[生物学—植物学]