Method for extracting phytocoenosium spatial structure

Abstract

The invention provides a method for extracting a phytocoenosium spatial structure. The method comprises: performing multi-resolution segmentation of a to-be-tested remote-sensing image in a target area to obtain remote-sensing image objects with different resolutions; establishing a corresponding relation between an image resolution of the to-be-tested remote-sensing image and an ecological organization resolution to obtain an image resolution of each plant type in the to-be-tested remote-sensing image, wherein the plant types include a meadow, a shrub, an arbor, a population and a group, wherein the meadow, the shrub, and the arbor are plant individuals; performing vegetation classification of a pre-selected sample of the to-be-tested remote-sensing image in plant individual and population image resolution according to the plant individuals and the population image resolution; summing the classification result of each resolution to a grouped data layer; and calculating plant individuals and parameters of a population spatial structure in a group resolution object boundary. The method for extracting the phytocoenosium spatial structure is relatively accurate, and is low in monitoring cost and high in objectivity.

Description

technical field [0001] The invention relates to the technical field of remote sensing image processing, in particular to a method for extracting the spatial structure of plant communities. Background technique [0002] At present, the investigation of plant community structure mostly adopts traditional, small-scale sampling statistical methods or large-scale remote sensing monitoring methods, including vegetation type, vegetation index, height and other configuration characteristics, but lacks the size, Identification of form, organization and pattern. There are two reasons for this: 1) scale problem. The organizational level of ecology follows the natural hierarchy, from plant configuration (branches, leaves), individual, population, community, ecosystem, to the organizational scale of ecological landscape. At different scales, patterns and processes often have different characteristic laws. Uncertainty in scale deduction affects the accuracy of analysis and even leads t...

AI Technical Summary

Problems solved by technology

In summary, apart from microscopic ground surveys, no large-scale and systematic monitoring methods have been proposed for the spatial structure of plant communities.

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