Evaluation method for landscape fragmentation index

An evaluation method and technology of fragmentation, applied in the field of landscape ecology, can solve the problems of lack of quantitative analysis methods for landscape fragmentation patterns, and achieve the effect of avoiding the problem of index deviation
CN108345897AInactive Publication Date: 2018-07-31CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHINESE RES ACAD OF ENVIRONMENTAL SCI
Publication Date
2018-07-31
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses an evaluation method for a landscape fragmentation index, and belongs to the technical field of landscape ecology. The evaluation method comprises the steps of obtaining satellite remote sensing image data of the land under test; interpreting according to the satellite remote sensing image data to obtain multiple landscape indexes of the land under test; and calculating thelandscape fragmentation index according to the multiple landscape indexes of the land under test. The landscape fragmentation index obtained according to the method disclosed by the invention can accurately reflect the fragmentation degree of the landscape in an area, thereby facilitating the study for the landscape fragmentation. The method integrates multiple landscape indexes, thereby being capable of effectively avoiding a problem of index deviation caused by the regional heterogeneity. The method is conducive to the analysis for a spatial distribution pattern of the regional landscape fragmentation. The extraction method of the invention has the characteristics of universality, high efficiency simplicity and convenience.
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Description

technical field

[0001] The invention relates to the field of landscape ecology, in particular to an evaluation method of landscape fragmentation index. Background technique

[0002] Land use and land cover change are important components of global change, and fragmentation is an important feature of landscape pattern evolution. Currently, there are some landscape indices that can be used to indirectly describe regional fragmentation, but there is a lack of a specific landscape index To quantitatively describe the degree of fragmentation.

[0003] The development of spatial analysis technology and software provides technical conditions for the study of spatial landscape patterns. Using the landscape index model combined with spatial remote sensing calculations, using effective grid connectivity, morphological features, and shape indices to study regional fragmentation patterns is a common method, but there is still a lack of unified measurement methods for describing fragmen...

Claims

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