도시 열저감 관점에서의 오픈스페이스 토지이용 공간패턴분석
Open Space Spacial Pattern Analysis from the Perspective of Urban Heat Mitigation
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초록
연구의 목적은 오픈스페이스 토지이용 공간패턴이 도시 열저감 관점에서 어떤 의미를 갖는지 토지이용 시나리오를 이용하여 살펴보는 것이다. 연구방법은 다음과 같다: (1) InVEST Urban Cooling Model을 이용, 5개 토지이용 시나리오별 Cooling Capacity Index 산출, (2) Guidos Spatial Pattern Toolbox를 사용, 토지이용 시나리오별 각각의 오픈스페이스 Entropy와 형태학적 공간패턴 산출, (3) InVEST 결과값과 Guidos 결과값들의 Spearman rank correlation analysis. 연구결과는 다음과 같다. Cooling Capacity Index와 오픈스페이스 면적비 순위 상관성은 보통이며(rho=0.50), 그 외 지표들은 낮은 것으로 나타났다. 이는 도시 열저감 관점에서는 오픈스페이스 총량만이 큰 의미를 가질 가능성이 있으며, 그 외 오픈스페이스 입지 공간패턴은 도시 열환경 관리 관점에서 큰 의미는 없을 수 있다는 가능성이 관찰되었다.
Abstract
The purpose is to explore the meaning of the open space land use space pattern from the perspective of urban heat reduction using the land-use scenario. The employed methods are as follows: (1) to calculate the cooling capacity Index for each of five land use scenarios, using the InVEST Urban Cooling Model, (2) to calculate open space entropy & morphological spatial pattern for each land use scenario, using the Guidos Spatial Pattern Toolbox, and (3) to perform a Spearman rank correlation analysis between the InVEST results and Guidos results. It is found that the rank correlation is moderate between the cooling capacity Index and the open space area ratio(rho=0.50). However, other relations are low. It is observed that only the total amount of open space is likely to have a meaning from the perspective of urban heat reduction, and that other open space location spatial patterns may not have much meaning from the perspective of urban thermal environment management.
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