热带农业工程2025，Vol.49Issue(1)：1-8,8.
基于GIS的吐鲁沟国家森林公园景观格局与生态敏感性分析
Analysis of Landscape Pattern and Ecological Sensitivity of Tulugou National Forest Park Based on GIS
摘要
Abstract
A favorable ecological environment is the foudation for maintaining human survival and development,it's also a significant prerequisite for national ecological civilization.Taking the Tulugou National Forest Park as an example,this paper explores methods for forest ecosystem protection and addresses the contradiction between forest ecosystem conservation and social development.The Digital Elevation Model(DEM)data of Tulugou National Forest Park was imported into ArcGIS 10.6 platform to obtain single-factor data layers,which were then weighted and overlaid to produce an ecological sensitivity distribution map of the park.The landscape pattern indeces were obtained by converting the land use landscape type map into a 5 m×5 m grid format in ArcGIS,exporting it in GeoTiff format,and then analyzing it using FRAGSTATS 4.2.The results show that the overall ecological sensitivity of Tulugou National Forest Park is mildly sensitive.The proportions of the five degrees are:extremely sensitive areas account for 17.24%,highly sensitive areas account for 11.32%,moderately sensitive areas account for 15%,lightly sensitive areas account for 54.66%,and insensitive areas account for 1.78%.Extensive areas of extremely and highly sensitive areas are distributed in the Xiaotulugou Forest Scenic Area and the Tulugou Grassland Tourism Area,with small portions located at the entrance of the scenic area,where the fragmentation of the landscape pattern is relatively severe.Lightly sensitive areas have the largest proportion,are located in the Qiantulugou Forest Scenic Area and Datulugou Forest Scenic Area.According to the landscape pattern of Tulugou National Forest Park,the forest landscapes make up the largest proportion and are the dominant landscape resource.Alpine meadow landscapes are the most affected by external disturbances,showing higher landscape fragmentation and complex patch shapes.There is a positive correlation between landscape patterns and ecological sensitivity distribution.This study provides references for the protection,management,planning and construction of ecological resources in Tulugou National Forest Park,and proposes different ecological conservation strategies for ecologically sensitive areas within the park.关键词
生态敏感性/景观格局/国家森林公园Key words
ecological sensitivity/landscape pattern/national forest park分类
天文与地球科学引用本文复制引用
杨开心,刘文兰..基于GIS的吐鲁沟国家森林公园景观格局与生态敏感性分析[J].热带农业工程,2025,49(1):1-8,8.基金项目
甘肃农业大学科技创新基金——学科建设专项基金(No.GAU-XKJS-2018-114) （No.GAU-XKJS-2018-114）
甘肃省高等学校创新能力提升项目(No.2019B-072) （No.2019B-072）
甘肃省林业和草原局林草科技创新与合作项目(No.kjcx2021004) （No.kjcx2021004）
国家自然科学基金项目(No.31360569). （No.31360569）
