Method for constructing multi-source territorial development risk assessment system based on hierarchical framework

Abstract

The invention discloses a method for constructing a multi-source territorial development risk assessment system based on a hierarchical framework. The method comprises the following steps: determininga territorial development risk source; based on multiple territorial development risk sources, taking an analytic hierarchy process as a model framework to construct a multi-risk-source index system,adopting a 19 scale method to score the relative importance among evaluation indexes of different territorial development risk sources, and determining the weight of each evaluation index; accordingto expert experience and specific conditions of a research area, enabling each evaluation index to be subjected to magnitude division, selecting a proper evaluation method according to characteristicsof various risk sources, and measuring and caculating risk degrees of the various risk sources. According to the construction method of the multi-source territorial development risk assessment systembased on the hierarchical framework, a multi-risk-source index system is constructed on the basis of the hierarchical analysis model framework and according to element data such as land, grain, ecology, resources, disasters and social economy, and an appropriate assessment method is selected according to the characteristics of various risk sources; and territorial development risk comprehensive evaluation research is carried out from multiple scales.

Description

technical field [0001] The invention relates to the technical field of national land development risk assessment, in particular to a method for constructing a multi-source national land development risk assessment system based on a hierarchical framework. Background technique [0002] Land is the material basis and space carrier for normal production and life. It can not only provide the necessary production space for human social and economic development, but also provide the necessary living space for their living and living, and provide corresponding ecological service space. With the rapid development of my country's economy, the process of urbanization is accelerating, the increase in population and the expansion of the scope of human activities have led to an increase in the rigid demand for land development, accompanied by the supply of land resources, ecological protection, resource utilization and Conflict between human needs. How to coordinate the relationship betw...

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Problems solved by technology

[0003] At present, there are some problems in the research of national land development risk: (1) At present, there is no perfect national land development risk evaluation system in China, and the relevant research fields mainly include: environmental risk evaluation, ecological risk evaluation, disaster risk evaluation, urban development risk evaluation, etc. , these concepts have different emphases when they are defined, and this kind of single risk source assessment has its own emphasis on the assessment objects, and none of them can comprehensively evaluate the national land development risk; (2) There are few comprehensive studies on national land development risk. Scholars have carried out in-depth research on various risks, but there are still few comprehensive analysis studies on these risks, and a unified understanding has not been formed in terms of research ideas and methods; (3) There is a lack of research on multi-scale land development risk assessment, Restricted by a series of conditions such as methods and data, domestic related research mostly takes regions, districts, river basins or smaller administrative units as research units, and relatively few studies are carried out on multiple scales; (4) Risk There are various evaluation methods, but the evaluation results of methods that are convenient to operate and involve few indicators are often not reliable enough, while some more reliable models such as system dynamics models need to establish complex feedback relationships in the process of model construction. There is also some uncertainty

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