北华大学学报（自然科学版）2024，Vol.25Issue(1)：96-102,7.DOI:10.11713/j.issn.1009-4822.2024.01.018
近40a闽江流域森林景观格局动态变化
Dynamic Changes of Forest Landscape Pattern in Minjiang Valley in the Recent 40 Years
摘要
Abstract
Based on Landsat remote sensing image data of the three issues in 1986,2003,2021 and continuous inventories data of forest resources,this research used landscape pattern index from patch characteristics,spatial configuration of landscape elements and landscape heterogeneity to analyze the dynamic changes and influencing factors of the forest landscape pattern in Minjiang Valley.The results showed that the forest land accounted for 68.28%of the whole region in 2021,which was the base of the valley landscape.From 1986 to 2003,the landscape area of forest land increased by 349 134.5 hm2,and the area increased by 392 508.77 hm2 during 2003-2021.The edge density and the ratio of inner edge increased,the average shape index and fractal dimension decreased,and the patch boundary tended to be smooth,simple and regular.The total number of patches decreased,total perimeter and average area of patches increased,landscape fragmentation decreased and distribution tended to gather.In landscape heterogeneity,Shannon dominance index and Shannon diversity index increased,while Shannon evenness index decreased.The dominant landscape forest land controlled the valley landscape,the landscape stability enhanced,and the heterogeneity reduced.In conclusion,the edge effect of forest landscape in Minjiang Valley increased,the fragmentation decreased,the ecological function of landscape enhanced,and the ecological environment quality improved.关键词
森林景观格局/动态变化/遥感影像/闽江流域Key words
forest landscape pattern/dynamic changes/remote sensing image/Minjiang valley分类
农业科技引用本文复制引用
亓兴兰..近40a闽江流域森林景观格局动态变化[J].北华大学学报（自然科学版）,2024,25(1):96-102,7.基金项目
南平市自然科学基金联合资助项目(2019J14) （2019J14）
福建省林业局科技项目(闽林科[2013]5号) （闽林科[2013]5号）
福建省中青年教师教育科研项目(JZ180460) （JZ180460）
福建省资源环境监测与可持续经营利用重点实验室开放课题(ZD1801). （ZD1801）
