西南林业大学学报2023，Vol.43Issue(11)：1-7,7.DOI:10.11929/j.swfu.202210001
湖北主要造林树种生态区划研究
Study on Ecological Regionalization of Main Afforestation Species in Hubei Province
摘要
Abstract
In order to clarify the distribution patterns of Cunninghamia lanceolata,Populus deltoides,Pinus elliottii and Larix kaempferi in Hubei Province,the software MaxEnt and ArcGIS were used to classify cultiva-tion regions of 4 species in Hubei Province with data of 42 environmental factors including climate,topography and soil and the known distribution information.The results showed that the predicted AUC values of the MaxEnt model for the 4 tree species ranged from 0.855 to 0.951,and the prediction accuracy of the model was improved by 0.23％3-3.59％through the screening of environmental variables.Bioclimatic factors and topographic factors contributed more than 85％to the prediction model construction of the suitable areas of the 4 tree species,which were the main ecological factors affecting the distribution.The contribution rate of altitude was the first in all spe-cies,reaching 31.48％-47.80％.The ecological areas of the 4 tree species could be divided into 3 grades:the most suitable region,the more suitable region and the less suitable region.The distribution maps of the suitable land of each tree species were drawn respectively,and the distribution patterns of the 4 main afforestation tree species were clarified.It is suitable to develop C.lanceolata plantation in northwest,southwest and southeast of Hubei.It is suitable to develop P.deltoides in Jianghan Plain area of central Hubei.The hilly areas of north and east Hubei are mainly P.elliottii,and the high mountain areas of west Hubei are suitable for the development of L.kaempferi.关键词
湖北省/主要造林树种/最大熵模型/生态区划/环境变量Key words
Hubei Province/main afforestation species/maximum entropy model/ecological regionaliza-tion/environmental variable分类
农业科技引用本文复制引用
杜超群,吴昊,袁慧,许业洲..湖北主要造林树种生态区划研究[J].西南林业大学学报,2023,43(11):1-7,7.基金项目
湖北省林业局委托项目(主要造林树种栽培区划和栽培技术指南)资助. （主要造林树种栽培区划和栽培技术指南）
