Method for sudden accident risk zoning of river basin based on change of water resource

A kind of accident risk and unexpected technology, applied in the direction of climate change adaptation, instruments, etc., can solve the problems of lack of regional comprehensive environmental risk assessment and zoning research, and achieve scientific level improvement, strong operability, and wide application range Effect

Inactive Publication Date: 2012-02-29
程红光 +1
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Problems solved by technology

Lack of research on comprehensive regional environmental risk assessment and zoning

Method used

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  • Method for sudden accident risk zoning of river basin based on change of water resource
  • Method for sudden accident risk zoning of river basin based on change of water resource
  • Method for sudden accident risk zoning of river basin based on change of water resource

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Embodiment Construction

[0024] The method for zoning the risk of sudden accidents in a river basin based on changes in water resources according to the present invention will be further described below in conjunction with the accompanying drawings.

[0025] see figure 1 with 2 Shown, according to a kind of river basin sudden accident risk partition method based on water resources change of the present invention comprises steps: 1), carry out drought risk partition (drought risk partition is 1-5) by drought risk index within the scope of selected area level); 2), within the selected area, use the flood risk index to carry out flood disaster division (flood disaster division is 1-5); 3), within the selected area, use the sudden accident risk index to carry out sudden Accident risk divisions (sudden accident risk divisions are grades 1-6); 4), the above divisions are superimposed in the GIS system to realize sudden risk divisions under different precipitation conditions. The numerical value of the dro...

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Abstract

The invention relates to a method for sudden accident risk zoning of a river basin based on changes of water resources, which comprises the following steps: 1) carrying out drought risk zoning within a selected zone scope according to drought risk indexes; 2) carrying out flood disaster zoning within the selected zone scope according to flood risk indexes; 3) carrying out sudden accident risk zoning within the selected zone scope according to sudden accident risk indexes; and 4) superimposing zoning results in a GIS (geographic information system) to realize sudden risk zoning under different precipitation conditions. The conditions of the water resources are taken to account for sudden accident risk zoning, the sudden accident risk zoning results of zones are more reasonable and reliable, and the scientific level of regional environmental management can be improved. Moreover, the sudden accident risk zoning results of the zones can be displayed promptly through the GIS technology, and the accuracy of integrated environmental management can be improved. Meanwhile, the method has high operability and a wide scope of application and is suitable for zones of different sizes.

Description

technical field [0001] This patent relates to the fields of accident environmental risk assessment, natural disaster risk assessment, and GIS technology application, especially a "GIS platform-based water resource change risk division method for river basin emergency accidents." Background technique [0002] Most of the regional risk problems are caused by the interaction of multiple factors, and its action time and consequences are difficult to predict. Therefore, it is very important to comprehensively evaluate and partition regional risks. With the advancement of industrialization and urbanization, sudden environmental pollution accidents occur frequently in our country, with increasing impact and losses, which have become an important factor that hinders regional economic development and threatens environmental safety and human health. At the same time, disasters caused by natural factors (such as floods and droughts) in the region will also cause damage to human health ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/00
CPCY02A10/40
Inventor 汪皕喆程红光
Owner 程红光
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