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Regulation and control technology of urban ecological system

An ecosystem and urban technology, applied in the fields of urban ecology and environmental science, evaluation and regulation, monitoring, and urban ecosystem management, can solve the problems of lack of dynamic regulation and multi-scale regulation of urban ecosystems, and achieve strong generalization. Effect

Inactive Publication Date: 2010-09-22
BEIJING NORMAL UNIVERSITY
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AI Technical Summary

Problems solved by technology

[0005] At present, there are few patented technologies for the regulation of urban ecosystems, mainly including ecological sensitivity analysis, risk assessment and other methods, and lack of dynamic regulation and multi-scale regulation technologies for urban ecosystems

Method used

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  • Regulation and control technology of urban ecological system
  • Regulation and control technology of urban ecological system
  • Regulation and control technology of urban ecological system

Examples

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Embodiment 1

[0026] Take the urban land porosity index change map of a city from 1990 to 2005 as an example. Use remote sensing images to extract land use spatial data of a city in 1990, 1995, 2000 and 2005. Then use the porosity index to calculate the multi-scale porosity index of urban land, cultivated land, and residential land in different years, and draw the curve. It can be seen from the change of the porosity index of urban land ( figure 1 ), when the side length of the slide box is 1 pixel, the porosity index in 1990 is significantly higher than that in other years, and the difference between 1995 and 2000 is not large. This is because the period of 1990-1995 was a period of rapid urban expansion. In 1995-2000, the rate of urban expansion slowed down. It can be seen from the shape of the curve. When the side length of the sliding box is small, the porosity value decreases very slowly. When the side length of the sliding box is greater than 150 pixels, the porosity starts to decre...

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Abstract

The invention aims at the defect of the regulation and control technology of a current urban ecological system and provides a regulation and control technology of an urban ecological system with multi-dimensional transformation. By the improvement of a porosity exponent calculation method, dimensional transformation is carried out on various components of an urban landscape, thereby analyzing the change of the landscape structure and the function in an urbanization process. The technology manages, regulates, controls, monitors and evaluates the urban ecological system, has the characteristics of strong flexibility, low running cost and the like and provides a scientific programming basis for the management and the decision of the urban ecological system.

Description

Technical field [0001] The present invention belongs to the field of urban ecology and environmental science. The technology performs multi-scale conversion of various components of the urban ecosystem landscape pattern, analyzes the dynamic change pattern of various landscape components, and monitors and evaluates the urban ecosystem. System control, this technology is widely used in the fields of urban ecosystem management, monitoring, evaluation and control. [0002] The present invention is an urban ecological system regulation technology based on multi-scale transformation. It uses the urban landscape pattern index and the change in the size and scale of the slide box to objectively reflect the development process of different cities under the conditions of different development stages and different types of urban landscapes. The law of landscape changes is pertinent and universal, providing a scientific planning basis for urban ecosystem management and decision-making. Back...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 田光进杨志峰全泉
Owner BEIJING NORMAL UNIVERSITY
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