森林景观斑块耦合网络特性与结构优化机理研究

项目名称： 森林景观斑块耦合网络特性与结构优化机理研究

项目编号： No.31470642

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 农业科学

项目作者： 李际平

作者单位： 中南林业科技大学

项目金额： 90万元

中文摘要： 森林景观是一个复杂开放的生态系统，在林分尺度下对森林景观格局及动态的研究已不能够全面、准确地反映森林景观的现状及其变化规律，忽视了森林景观的整体功能。本研究以系统工程、景观生态学、复杂网络等理论为依据，利用3S技术手段，把森林景观作为研究对象，通过在研究区内连续的森林景观中提取斑块耦合体，建立森林景观斑块耦合加权网络模型，研究该网络的特性及其熵变化规律，分析网络指标与森林景观格局指数之间的映射关系，采用计算机仿真技术探讨网络稳定性，建立斑块耦合网络评价指标体系，构建森林景观斑块耦合网络结构优化模型，提出景观尺度下森林经营措施。为揭示森林景观复杂性、构建可持续森林景观经营模式提供理论依据。

中文关键词： 森林景观；斑块耦合网络；稳定性；结构优化；熵

英文摘要： The forest landscape is a complex and open ecosystem, but the researches of forest landscape pattern and its dynamic on the stand scale ignored the function of the forest landscape, so it is not able to fully and accurately reflect the current situation and changes the rule of the forest landscape. This study uses the 3S technology and looks the forest landscape as the object based on the theory of systems engineering, landscape ecology, complex network, and etc. The coupling network model and the coupling weighted network of forest landscape patches were built through extracting patches coupling body from continuous forest landscape in the research area. Based on the above, to study the characteristics of this network and the change law of its entropy, to analysis the mapping relationships between the network indicators and the index of actual forest landscape pattern, to discuss the stability control mechanism of the network, to establish evaluation index system of the patches coupling network, to realize the network optimization and structure adjustment through the simulation technology, then put forward management measures on the landscape scale. This study will also provide a theoretical basis for revealing the complexity of forest landscape and constructing the mode of sustainable forest landscape management.

英文关键词： forest landscape;patches coupling network;stability;structure optimization;entropy