Measuring Ecological Values of Green Open Space Using Normalized Different Vegetation Index Parameter

摘要

Green Open Space (GOS), as the element of urban landscape and urban design, is the main component of the city compose. Therefore, GOS has many values, one of them is ecological value. That means, if we create and develop GOS in various forms such as city parks or urban forests, we will be able to save budgets in manufacturing things to produce oxygen, water, and maintaining carbon, soil, etc. Because GOSs themselves are able to provide and produce those budgets naturally. Another way to measure the ecological value of GOS is through tree canopy spaces (TC.) The spaces are often seen at roof top of the buildings, that are canopied by tree mass. Normalized Different Vegetation Index (NDVI) method can also be used to measure and estimating the ecological value of GOS. Moreover, NDVI can illustrate and describing the distribution of TC in urban area. The paper content is about measuring the ecological value of GOS in term of saving budgets on providing oxygen and maintaining carbon by using NDVI.