通许县杨树面积变化及驱动力分析研究  

Study on poplar area change and its driving force in Tongxu County

作　　者：姜海玲[1] 陈光义 张舒涵 周星宇[1] 于海淋 JIANG Hai-ling;CHEN Guang-yi;ZHANG Shu-han;ZHOU Xing-yu;Yu Hai-lin(College of Tourism and Geographic Sciences,Jilin Normal University,Siping 136000,China)

机构地区：[1]吉林师范大学旅游与地理科学学院,吉林四平136000

出　　处：《吉林师范大学学报（自然科学版）》2022年第4期135-140,共6页Journal of Jilin Normal University:Natural Science Edition

基　　金：国家自然科学基金项目(41701424);遥感科学国家重点实验室开放研究基金项目(OFSLRSS201716);天津市应用基础计划项目(18JCQNJC70400)。

摘　　要：以河南省通许县为研究区,获取该地区2016-2020年Sentine-2遥感影像和对应年份统计年鉴数据,首先利用支持向量机方法进行土地利用类型分类,然后通过土地利用动态度计算2016-2020年间杨树面积的变化幅度,再使用主成分分析方法剖析影响杨树面积变化的主要因素,最后利用相关分析法计算影响杨树面积变化的各主要因素与杨树面积之间的相关度.研究结果表明:居民点、耕地周围是杨树减少的主要区域;2016-2019年杨树总体变化率为-13%,2019-2020年变化率为-30%;乡村人口数、乡村劳动力、城镇化率是影响杨树分布面积变化的常规因素,第二产业增加值、第三产业增加值是2019-2020年期间影响杨树面积变化的特殊因子.研究为人口密集农耕区林地资源的监管和未来规划提供参考.Taking Tongxu County,Henan Province as the study area,the Sentine-2 remote sensing image and the statistical yearbook data of the corresponding years in the region from 2016 to 2020 were obtained.First,the support vector machine method was used to classify the land use types.Then,the dynamic degree of land use was used to calculate the change range of poplar area from 2016 to 2020.Then,the principal component analysis method was used to analyze the main factors affecting the change of poplar area,Finally,correlation analysis was used to calculate the correlation between the main factors affecting the change of poplar area and poplar area.The results showed that:The main areas of poplar reduction were around residential areas and cultivated land;The overall change rate of poplar in 2016-2019 is-13%,and that in 2019-2020 is-30%;The number of rural population,rural labor force and urbanization rate are the conventional factors that affect the change of poplar distribution area.The added value of the secondary industry and the added value of the tertiary industry are the special factors that affect the change of poplar area during 2019-2020.The study provides a reference for the supervision and future planning of forest land resources in densely populated agricultural areas.

关 键 词：杨树分布 Sentine-2影像 驱动力分析 

分 类 号：S759.1[农业科学—森林经理学] S757.2[农业科学—林学] S766