Environment risk quantitative partition technology for megalopolis

An environmental risk, urban environment technology, applied in the direction of instruments, etc., to achieve the effect of technical improvement and safety assurance

Inactive Publication Date: 2011-09-14
BEIJING NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, there is still no complete quantitative z...

Method used

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  • Environment risk quantitative partition technology for megalopolis
  • Environment risk quantitative partition technology for megalopolis
  • Environment risk quantitative partition technology for megalopolis

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Experimental program
Comparison scheme
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Embodiment Construction

[0037] Further illustrate the present invention by Shanghai example in conjunction with accompanying drawing

[0038] 1. Establish an environmental risk zoning indicator system for megacities

[0039] (1) Index system

[0040] According to the actual situation in Shanghai, taking districts and counties as the research object, according to the three subsystems of the environmental risk system - risk source, control mechanism and receptor, an attached figure 1 The zoning indicator system is shown and quantified.

[0041] (2) Explanation of key indicators

[0042] (1) Scale of major hazards

[0043] The "Technical Guidelines for Environmental Risk Assessment of Construction Projects" stipulates that a major hazard source is a functional unit that produces, processes, transports, uses or stores hazardous substances in a long-term or short-term period, and the quantity of hazardous substances is equal to or exceeds the critical quantity. In this paper, the major hazard sources ...

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Abstract

The invention provides an environment risk quantitative partition technology for megalopolis. The technology comprises the following steps of: (1) taking districts as partition units for constructing an environment risk quantitative partition index system suitable for the megalopolis; (2) constructing a quantitative model for the index system, and finally counting an environment risk composite index of each partition unit; (3) constructing an environment risk partition technology, using SPSS (Statistical Product and Service Solutions) system clustering functions for obtaining an environment risk relative risk level of the megalopolis, dividing each partition unit of the megalopolis into significant risk regions, greater risk regions, general risk regions and low risk regions, and obtaining an environment risk partition map of the megalopolis based on GIS (Geographic Information System); and (4) determining main characteristics of the environment risk of each partition unit. By application of the technology in the invention, the technology vacancy problem for the environment risk partition technology for the megalopolis is solved; the region environment risk partition technology is effectively improved.

Description

technical field [0001] The invention relates to a technology for quantitatively zoning environmental risks in megacities, in particular to a technology for quantitatively zoning environmental risks for key risk sources in megacities. Background technique [0002] At present, there are few domestic studies on regional environmental risk zoning, which is still in its infancy, and there are fewer environmental risk zoning for megacities. The important topic of overall risk analysis of my country's regional environmental system was first proposed by Cao Xishou. Bi Jun, Yang Jie, Li Qiliang and others analyzed the spatial and temporal pattern of Shenyang's environmental risks to obtain a zoning map. This method did not take into account environmental risk events. In the whole process that takes place, the partition result can only represent a part. Therefore, there is still no complete set of quantitative zoning technology for the environmental risk of megacities. And most of th...

Claims

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Application Information

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IPC IPC(8): G06Q10/00
Inventor 杨娅马俊伟
Owner BEIJING NORMAL UNIVERSITY
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