Method for assessing urban ecosystem health based on uncertain measure

A technology for ecosystem and health evaluation, applied in the direction of instruments, data processing applications, calculations, etc., can solve the problems of not considering the uncertainty of the evaluation process, the lack of scientificity and accuracy of the evaluation results, and the difficulty of universal evaluation models

Inactive Publication Date: 2010-02-24
BEIJING NORMAL UNIVERSITY
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Problems solved by technology

Because these methods require human factors to evaluate the weight of each index and do not consider the uncertainty of the evaluation process, the evaluation model is difficult to generalize, and the evaluation results are not scientific and accurate.

Method used

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  • Method for assessing urban ecosystem health based on uncertain measure
  • Method for assessing urban ecosystem health based on uncertain measure
  • Method for assessing urban ecosystem health based on uncertain measure

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0037] The specific implementation of the urban ecosystem health evaluation method based on undetermined measures is as follows:

[0038] 1. Collect the index values ​​of the six major elements of the city.

[0039] 2. Carry out urban ecosystem health assessment factor reduction. Due to the possibility of repetition among the evaluation indicators, it is necessary to conduct a correlation test on the original indicators, and use the Pearson correlation analysis tool of SPSS to analyze and process the pairwise correlation between the internal indicators of each element.

[0040] 3. When determining the standards of each evaluation level, the principles for determining different index standards are different. Indicators can be divided into three categories.

[0041] The index value of category A is positively correlated with the health degree, showing a single-increasing distribution, that is, the higher the index value, the higher the health degree. These indexes have a limit v...

Embodiment 1

[0049] Example 1: Ecosystem Health Assessment of Baotou City

[0050] 1. Determining the evaluation factors of urban ecosystem health

[0051] According to the corresponding induction of the elements, six elements are obtained: population health, urban well-being, human settlement health, environmental health, habitat health, and environmental impact, with a total of 25 categories and 59 indicators (see Table 2). Due to the possibility of repetition among the evaluation indicators, the Pearson correlation analysis tool of SPSS is used to analyze and process the pairwise correlation between the internal indicators of each element. Here we take the correlation analysis matrix of the human health category as an example (see Table 3). Since the data in (3) is difficult to obtain, only the correlation analysis of the remaining seven indicators is carried out. Table 3 shows that the index population mortality rate and the number of college students per 10,000 people have no correla...

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Abstract

The invention provides a method for assessing urban ecosystem health by an uncertain measure composite technology, belonging to the scientific field of urban ecological planning. The method comprisesthe steps that: a plurality of index factors reflecting 6 health factors of an ecological city are selected and are subject to simplification through Pearson correlativity analysis in SPSS tool, a classification criteria matrix for the uncertain measure is then established by ranking health assessments and checking entropy weight, and health level of the system is further checked. The method is extensively suitable for reasonably, comprehensively assessing urban, regional ecosystem health condition, and on the basis of which, can offer scientific theoretical foundation for urban ecological planning, and the method is also suitable for assessing regional scale ecosystem health.

Description

technical field [0001] The invention belongs to the scientific field of urban ecological planning, and in particular relates to an urban ecological system health evaluation method using an undetermined measurement composite technology. This method is widely applicable to reasonably and comprehensively evaluate the health status of urban and regional ecosystems, and on this basis, it can provide a scientific theoretical basis for urban ecological planning. Background technique [0002] The health of urban ecosystems is a necessary condition and an important criterion for sustainable development. Understanding the health status of the urban ecosystem, finding out its coercive factors, and proposing management measures and approaches to maintain and maintain the healthy state of the urban ecosystem are issues that must be solved to achieve sustainable urban development. This also provides planning basis for urban ecological planning. To make the concept of ecosystem health ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/00G06Q50/00
Inventor 杨志峰刘耕源陈彬
Owner BEIJING NORMAL UNIVERSITY
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