Evaluation device and evaluation method for carbon dioxide absorbing effectiveness

Abstract

Disclosed is a method for the evaluation of carbon dioxide absorbing effectiveness which can carry out analysis suited to reducing carbon dioxide. The disclosed method comprises: a step wherein a plant region (4) is extracted from a region (2) to be evaluated in accordance with the pixel distribution of observation image data (3), wherein the region (2) to be evaluated has been observed from the air above by means of a specified wavelength region which can distinguish a plant group (1); a step wherein the difference between the ground surface elevation and the stratum layer elevation of the plant region (4) is calculated as the height of the plant group (1) for each partition unit (7) wherein the plant region (4) is partitioned into specified surface area units, said calculation being on the basis of a numerical terrain model (5) and a numerical stratum mode (6) coordinated and orientated to the observation image data (3); and a step wherein a carbon dioxide absorption amount (e) is allocated to a plant group (1) which is below a previously-set height corresponding to a forest, the carbon dioxide absorption amount (e) being for a specified unit surface area set according to the causal relationship with the carbon dioxide absorption amount (e), and the carbon dioxide absorbing effectiveness of the non-forest region under the cover of the surface area within the plant region (4) of the partition unit (7) comprising the plant group (1) is evaluated.

Description

technical field [0001] The present invention relates to an evaluation method and evaluation device of carbon dioxide absorption effect. Background technique [0002] Regarding the reduction of carbon dioxide, which is a major cause of global warming, attention has been paid to the carbon dioxide absorbing ability of trees in recent years. For example, in the Kyoto Protocol, which is a protocol of an international conference in recent years, it is proposed to grasp the reduction amount of carbon dioxide by using managed and maintained forests as absorption sources. [0003] Patent Document 1 describes a method for evaluating such forest-based carbon dioxide absorption effects. In this prior art, the evaluation is realized by directly grasping the amount of carbon dioxide absorbed by the forest. Specifically, the amount of carbon absorbed is calculated by multiplying the annual growth of the forest by the carbon content rate, and converted into carbon dioxide to grasp the an...

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Problems solved by technology

[0007] However, in the above-mentioned conventional technology, the absorption source of carbon dioxide is limited to the forest at first, so it is not necessarily possible to make an analysis suitable for reducing carbon dioxide in areas with few forests such as urban areas.

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