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Method and device for obtaining provincial cultivated land natural index

A cultivated land, natural technology, applied in the field of index, can solve problems such as cultivated land quality evaluation

Active Publication Date: 2021-09-10
CHINA AGRI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the natural index obtained by this method is highly subjective, and the calculation of the natural index of cultivated land in units of counties is not conducive to evaluating the quality of cultivated land from a macro perspective

Method used

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  • Method and device for obtaining provincial cultivated land natural index
  • Method and device for obtaining provincial cultivated land natural index
  • Method and device for obtaining provincial cultivated land natural index

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Embodiment Construction

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0029] Aiming at the problems in the related art, the embodiment of the present invention provides a method for obtaining the natural index of cultivated land in the province. Among them, the natural index of cultivated land can be used to evaluate the quality of cultivated land. This method can be used to obtain the natural index of cultivated l...

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Abstract

The embodiment of the present invention provides a method and device for obtaining the natural index of cultivated land in a province, which belongs to the technical field of cultivated land quality evaluation. Including: according to the correlation coefficient between each alternative index, and the correlation coefficient between each alternative index and the reference value of the cultivated land natural index of each township in the province, screen each alternative index, and filter the selected alternate indicators The index is selected as the grading index; the value of each grading index of each township and the reference value of the cultivated land natural index of each township are regressed to determine the impact weight of each grading index on the cultivated land natural index of each township; according to The value of each grading index of each township and the corresponding impact weight of each grading index of each township determine the natural index of cultivated land for each township in the province. Since the quality of cultivated land can be evaluated from a more macro perspective, and the spatial non-stationarity of the grading index is taken into account, the quality of cultivated land can be evaluated more objectively and accurately.

Description

technical field [0001] The invention relates to the technical field of cultivated land quality evaluation, in particular to a method and a device for obtaining a provincial cultivated land natural index. Background technique [0002] At present, the protection of cultivated land is facing new situations and requirements. It is necessary to further promote the construction of ecological civilization and implement protection from the three aspects of cultivated land quantity, quality and ecology. This requires further deepening the understanding of the essence of cultivated land quality. As people pay more and more attention to the quality of cultivated land, it is of great significance to evaluate the quality of cultivated land in provinces from a macro perspective. [0003] In related technologies, the most commonly used method to obtain the natural index of cultivated land at the provincial level is to obtain the index values ​​through sample surveys within the county, and ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/02
CPCG06Q10/06393G06Q50/02
Inventor 杨永侠桑婧张函赵巧密郭雅萍张丽红
Owner CHINA AGRI UNIV
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