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 a method and an evaluation device for evaluating carbon dioxide absorption effects. Background technique [0002] In order to reduce carbon dioxide, which is the main cause of global warming, in recent years, attention has been paid to the carbon dioxide absorption capacity of trees. For example, the Kyoto Protocol, which is a protocol of an international conference in recent years, proposes to use managed and maintained forests as absorption sources to control the amount of carbon dioxide reduction. [0003] Patent Document 1 describes a method for evaluating the carbon dioxide absorption effect of such forests. In this conventional technology, evaluation is realized by directly measuring the amount of carbon dioxide absorbed by the forest. Specifically, the annual growth of the forest is multiplied by the carbon content rate to calculate the carbon absorption amount, and this is converted into carbon dioxide to unde...

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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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