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Method for describing ecological system attribute component composition structure by using component frequency area

An ecosystem and area technology, applied in data processing applications, complex mathematical operations, instruments, etc., can solve problems such as the inability to overcome the shape change of the attribute component frequency distribution curve

Inactive Publication Date: 2021-02-12
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The present invention is to solve the technical problem that the existing description method of the composition structure of the attribute components of the ecological system cannot overcome the shape change of the frequency distribution curve of the attribute components caused by the difference in spatial resolution, and provides a method for using the component frequency area to analyze the ecological system. Description Method of Component Structure of System Attributes

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  • Method for describing ecological system attribute component composition structure by using component frequency area
  • Method for describing ecological system attribute component composition structure by using component frequency area
  • Method for describing ecological system attribute component composition structure by using component frequency area

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Embodiment 1

[0017] Embodiment 1: The method for describing the composition structure of the ecosystem attribute components with the component frequency area of ​​the present embodiment is carried out according to the following steps:

[0018] 1. Obtain the remote sensing satellite ecological image data of the vegetation index NDVI of Guangdong Province in 2000;

[0019] 2. Determine the grouping scheme for the obtained vegetation index raster data. The grouping interval of the vegetation index NDVI is 0.02, and the median value of the grouping is used as the characteristic value;

[0020] 3. According to the grouping scheme, statistically summarize the pixel frequency of each grouping of the remote sensing vegetation index in Guangdong Province; according to the unit pixel area of ​​1km 2 , through the product operation, that is, component distribution area = group pixel frequency × unit pixel area, the pixel frequency is converted into the spatial distribution area of ​​the vegetation in...

Embodiment 2

[0027] Embodiment 2: The method for describing the composition structure of the ecosystem attribute components with the component frequency area of ​​the present embodiment is carried out according to the following steps:

[0028] 1. Obtain the remote sensing satellite ecological image data of the vegetation index NDVI of Jilin Province in 2000;

[0029] 2. Determine the grouping scheme for the obtained vegetation index raster data. The grouping interval of the vegetation index NDVI is 0.02, and the median value of the grouping is used as the characteristic value;

[0030] 3. According to the grouping plan, statistically summarize the pixel frequency of each grouping of the remote sensing vegetation index in Jilin Province; according to the unit pixel area of ​​1km 2 , through the product operation, that is, component distribution area = group pixel frequency × unit pixel area, the pixel frequency is converted into the spatial distribution area of ​​the vegetation index attrib...

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Abstract

The invention discloses a method for describing an ecosystem attribute component composition structure by using a component frequency area, and relates to a method for describing an ecosystem attribute component composition structure. The method aims to solve the technical problem that an existing method for describing the attribute component composition structure of the ecosystem cannot overcomethe shape change of an attribute component frequency distribution curve caused by different spatial resolutions. The method comprises the steps of obtaining remote sensing satellite ecological image data of a vegetation index of a research area; determining a grouping scheme for the vegetation index raster data; counting the pixel frequency of each group of the remote sensing vegetation indexes inthe research area; converting the pixel frequency into the spatial distribution area of the attribute component according to the pixel area operation; and generating an ecosystem attribute componentarea distribution diagram by taking the remote sensing grouping characteristic value as a transverse benchmark and the space area occupied by grouping as a longitudinal benchmark. The method can overcome the influence of different spatial resolutions of remote sensing images, and perfects the ecosystem attribute component composition structure description method. The method can be applied to the ecosystem monitoring field.

Description

technical field [0001] The invention relates to a description method of the component structure of the ecosystem attribute. Background technique [0002] The real-time monitoring and visualization of environmental and ecological elements is one of the signs of "informatization and intelligence" in modern environmental ecosystems. The real-time monitoring and visualization of ecological elements is of great significance in the fields of resource protection and ecological restoration. The composition structure distribution map of ecosystem attribute components can directly reflect the state of environment and ecological elements. [0003] At present, an important indicator for evaluating the structure of an ecosystem is the remote sensing vegetation index. However, due to the spatial resolution characteristics of remote sensing vegetation index image data, for a given ecosystem distribution area, the number of pixels owned by the vegetation index attribute components correspo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/18G06Q10/06
CPCG06F17/18G06Q10/06393
Inventor 陈子琦侯光雷刘兆礼赵文斌
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S