摘要
景观格局的定量分析是评价其对生态过程影响的先决条件,也是生态系统规划和管理的重要依据。当前的景观格局分析软件都仅提供基于“斑块-廊道-基质”景观分析范式的格局指数计算,不包含基于“源-流-汇”的范式的指数计算。这不仅无法适应景观生态学理论的发展,也无法满足大数据时代对计算场景和速率的需求。针对该问题,在研发基于“源-流-汇”的范式的指数算法的基础上,开发了景观生态学工具箱(Landscape Ecology Toolbox,LET)。不仅同时提供基于两种分析范式下的景观格局指数计算,也提供了图形用户界面和命令行两种运行方式。在对LET主要功能进行介绍的基础上,将LET同现有景观分析软件在操作逻辑、景观指数计算范围、特色功能等方面进行了详细的对比,最后对软件未来的发展方向进行了讨论。
Quantification of landscape pattern is the prerequisite for determining the impact of landscape pattern on ecological processes,and is also critical reference for ecological system planning and management.Existing softwares for conducting landscape pattern only provide calculation of landscape pattern indices based on the“Patch-Corridor-Matrix”paradigm.None of them provide calculation for indices based on the“Source-Pathway-Sink”paradigm,which are not catching up with the theoretical development in landscape ecology.In addition,their existing way of implementation and calculation capability cannot meet the requirement of speed and flexibility by the increased size of input data and application situation in the current big data era.Thus,this study developed the landscape ecology toolbox(LET),a new software capable of calculating indices for both paradigms and providing both graphical and command line user interfaces.The paper firstly described the main features of the LET software.Then,the detailed comparison was made on LET with existing software for calculating landscape pattern analysis in terms of their usage,indices provided by each software,and special functions.At last,future development of the LET was discussed.
作者
冯青郁
凡会会
杨磊
陈利顶
黄勇
李博永
范茵琳
杨能亮
FENG Qingyu;FAN Huihui;YANG Lei;CHEN Liding;HUANG Yong;LI Boyong;FAN Yinlin;YANG Nengliang(State Key Laboratory of Urban and Regional Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;College of Resources and Environment,University of Chinese Academy of Sciences,Beijing 100049,China;Institute of International Rivers and Eco-security,Yunnan University,Kunming 650500,China)
出处
《生态学报》
CAS
CSCD
北大核心
2024年第11期4678-4686,共9页
Acta Ecologica Sinica
基金
国家自然科学基金面上项目(42077057)
西藏生态保护-修复关键技术与生态文明高地建设示范(XZ202201ZD0005G03)。
