斑块耦合网络:景观评价的功能流视角

Coupling network of landscape patches from the perspective of function flows of landscape evaluation

景观网络从景观结构网络发展到景观功能网络。景观功能网络将无形的景观功能流落实于实际的空间中,更多地考虑功能"流"的联系。由于景观系统功能流空间的存在,以及流空间中由流势差形成的流路径,把斑块作为景观网络的节点,从功能流的视角提出了可作为景观整体评价的"斑块耦合网络"模型。对模型阐述了节点、功能流路径、功能流势差三个维度的概念框架,指出了未来研究应该对模型在景观尺度及不同区域中的评价生态功能的适用性进行实证检验,并根据结果对模型进行进一步的修正和完善。

The landscape function network is proposed based on the landscape structure network. Relationship between landscape elements of landscape function network is expanded from visible space to invisible landscape function flow. Due to existing flow space and flow path formed by flow potential difference in flow space, so landscape patch can be taken as node of landscape network, and the coupling network of landscape patches model which can evaluate overall function of landscape sysytem was proposed from the perspective of the functional flow. The conceptual frameworks of coupling network of landscape patches model were expounded from the three aspects, namely, node, function flow path and function flow potential difference. It is pointed out that the suitability of the model structure which can express different ecological functions should be tested and corrected.