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Evaluation method for distribution and driving force of mountain torrent disasters in super-large area

A driving force and disaster technology, applied in the field of emergency disaster prevention evaluation, can solve the problems of lack of quantitative research and achieve accurate research results

Pending Publication Date: 2020-04-17
TIANJIN UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to propose a method for evaluating the driving force of mountain torrent disaster distribution in a super-large area, realize the analysis and quantitative evaluation of mountain torrent disasters in my country, solve the problem of lack of quantitative research, and determine the temporal and spatial distribution of mountain torrent disasters in my country, thereby better prevent and treat it

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  • Evaluation method for distribution and driving force of mountain torrent disasters in super-large area
  • Evaluation method for distribution and driving force of mountain torrent disasters in super-large area
  • Evaluation method for distribution and driving force of mountain torrent disasters in super-large area

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] The evaluation method of the spatio-temporal distribution pattern and driving force of mountain torrent disasters in super-large areas of the present invention is realized through the following technical solutions:

[0027] Step 1. Divide the river basins across the country, and determine the research area and analysis period for this time;

[0028] Considering domestic and foreign research viewpoints comprehensively, the "secondary watershed" provided by the Resource and Environment Data Center of the Chinese Academy of Sciences is selected as the basic spatial analysis unit, and the country is divided into 39,279 watersheds, and 23,167 inhabited hills in uninhabited areas and plain areas will be removed regional watershed as the study area;

[0029] The five-year period from 2000 to 2015 was chosen as the analysis period for the spatial distri...

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Abstract

The invention discloses a spatial and temporal evaluation method for distribution and driving force of mountain torrent disasters in a super-large area, and the method comprises the steps: 1, dividinga drainage basin, and determining a research area and an analysis time period; step 2, carrying out spatial partitioning on the research area; 3, constructing a rainfall driving factor, a surface environment driving factor and a human activity driving factor, and performing driving force analysis; 4, analyzing continuous factors of the rainfall driving factor, the earth surface environment driving factor and the human activity driving factor by adopting a geographic detector; and 5, converting the mountain torrent disaster point data into continuously distributed fishing net surfaces by adopting a hot spot analysis method, and then calculating disaster intensity of each drainage basin by utilizing an area weight method to obtain spatial partitions of mountain torrent disasters. Accordingto the method, the driving factors of the spatial and temporal distribution pattern of the mountain torrent disasters are quantitatively analyzed by utilizing the geographical detector, so that influence of each driving factor is more credible, and the evaluation result is more real.

Description

technical field [0001] The invention relates to the technical field of emergency disaster prevention evaluation, in particular to an evaluation method for the spatio-temporal distribution pattern and driving force of mountain torrent disasters in super-large areas. Background technique [0002] Mountain torrent disasters are the main natural disasters that hinder the sustainable development of vast mountainous areas in my country. They cause a large number of casualties and huge property losses every year. They are characterized by strong suddenness and difficulty in prevention and prediction. From 2013 to 2016, a national survey of mountain torrent disasters was carried out, which not only collected data on mountain torrent disasters since 1949, but also found out the natural and social information such as population distribution, socioeconomic conditions, and underlying surface characteristics in hilly areas. This information can help to better formulate scientific measure...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/26
CPCG06Q10/06393G06Q50/26Y02A10/40
Inventor 苑希民徐奎刘业森韩超
Owner TIANJIN UNIV
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