基于最佳粒度的崇礼区近40年景观格局指数动态研究  

Dynamic Study of Landscape Pattern Index in Chongli District Over the Past 40 Years Based on Optimal Granularity

作　　者：崔义鑫 任莉 夏田 王蔚林 张鑫 Cui Yixin;Ren Li;Xia Tian;Wang Weilin;Zhang Xin(School of Architecture and Art,Hebei University of Architecture,Zhanjiakou 075000,Hebei,China;Hebei North University,Zhangjiakou 075000,Hebei,China)

机构地区：[1]河北建筑工程学院建筑与艺术学院,河北张家口075000 [2]河北北方学院,河北张家口075000

出　　处：《绿色科技》2024年第4期96-103,108,共9页Journal of Green Science and Technology

基　　金：张家口市2023年度社会科学研究课题(编号:2023009);河北北省自然科学基金资助项目(编号:C2021404001);河北省省属高等学校基本科研业务费研究项目(编号:2023JCTD06);河北省省级科技计划软科学研究专项资助(编号:23556104D)。

摘　　要：景观格局是从空间架构与空间设计两个角度探讨景观差异性在空间分布中的不平衡以及其复杂性的全面展示,都存在着明显的尺度依赖关系,也就是所谓的尺度效果。理解和探究尺度效应是探索景观结构特性和生态过程信息的核心。目前,关于景观格局尺度效应的研究,国外起步较早,而国内研究相对滞后。在这些研究中,多数研究者致力于探讨不同尺度下景观格局与其之间的关系。以崇礼地区为研究对象,选取中国多时期土地利用/土地覆盖遥感监测数据使用库为研究数据背景,借助ArcGIS和Frag stats软件,系统地探讨了2018年崇礼区景观指数随粒度变化的影响,并确定了最佳的分析粒度。在此基础上,深入剖析了崇礼区近40年来的景观结构特征和格局。经实验分析,崇礼区域林地景观的最佳研究尺度为50 m,此粒度能够有效揭示景观特征和生态过程。此外,各景观要素的分布存在明显的不均匀性,表明斑块间的聚散程度较低,空间布局呈现分散、复杂的特点,破碎化程度严重。Landscape pattern is a comprehensive display of the imbalance and complexity of landscape differences in spatial distribution from the perspectives of spatial architecture and design,both of which have obvious scale dependence,also known as scale effect.Understanding and exploring scale effects is the core of exploring landscape structural characteristics and ecological process information.At present,research on the scale effects of landscape patterns started earlier abroad,while domestic research is relatively lagging behind.In these studies,most researchers have focused on exploring the relationship between landscape patterns at different scales.Taking the Chongli area as the research object and selecting China's multi period land use/land cover remote sensing monitoring data usage database as the research data background,this study used ArcGIS and Frag Stats software to systematically explore the impact of landscape index changes with granularity in the Chongli area in 2018,and determined the optimal analysis granularity.On this basis,this study deeply analyzed the landscape structure characteristics and patterns of Chongli District in the past 40 years.The research results indicate that the optimal analysis granularity for forest landscape in Chongli District is 50m.At the same time,the distribution of various landscape elements shows uneven characteristics,with low degree of agglomeration between patches of different landscape types,scattered and complex spatial distribution,and high degree of fragmentation.

关 键 词：景观结构 景观格局 景观多样性 崇礼区域 粒度 

分 类 号：P901[天文地球—自然地理学]