Method for estimating the carbon sink amount of urban green land system and system thereof

Abstract

The invention discloses a method and system for estimating the carbon sink amount of an urban green land system. The method comprises the following steps: constructing a multivariate regression equation of the carbon sink amount of trees and shrubs and influence factors of tree height, crown breadth, diameter at breast height and vertical projection area; through sampling field measurement, obtaining vegetation data including tree height, diameter at breast height, crown breadth and vertical projection area of arbor, shrub and grass; calculating the carbon sink amount in each quadrat by using an existing method; obtaining relevant parameters through scheme index query, multivariate regression analysis of measured data and quadrat carbon sink quantity and the like; and substituting related parameters of different green land types into the multiple regression equation to obtain the urban green land system carbon sink amount of overall planning, and performing visual presentation. The invention provides the method with high operability for estimating the carbon sink quantity of the overall planning layer green land under the scale of the urban built-up area.

Description

technical field [0001] The invention belongs to the field of urban planning, and in particular relates to a method and system for estimating carbon sequestration of an urban green space system. Background technique [0002] At present, the methods for estimating urban green space carbon sinks are mainly divided into sample land inventory method, remote sensing inversion method, area method, eddy correlation method and so on. [0003] Among them, the sample plot inventory method is to establish a sample plot and use dendromic methods such as clear cutting method, average biomass method, dimensional analysis method, photosynthetic rate method to measure the biomass of each component of the forest ecosystem to estimate forest carbon storage. Methods. The plot inventory method is based on large-scale field surveys, and the results obtained are of high precision, and the research on related parameters is relatively comprehensive; the disadvantage is that it takes a long time and...

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Problems solved by technology

The eddy correlation method has high precision and can be used for real-time monitoring, but the cost is high and the technical requirements are high, so it is not suitable for planning and use

[0007] In the actual planning and design of urban green space systems, it is necessary to consider the function of green space as a carbon sink. For planners and designers, among the above three types of methods, sample plot inventory and remote sensing inversion methods are too complicated, and the required data, parameters and There are many calculation processes, which are not suitable for practical project applications. At present, the area method has no coefficient value suitable for the urban built-up area scale, and it is relatively rough. Therefore, it is necessary to establish a method that can be quickly used in the planning and design of urban built environment green space systems. Methods for estimating urban green space carbon sinks are necessary

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