论文标题
标准化的绿色视图指数和城市绿色植被的不同指标的量化
Standardized Green View Index and Quantification of Different Metrics of Urban Green Vegetation
论文作者
论文摘要
城市绿化被认为是与可持续发展和城市人民生活质量有关的重要因素。尽管已经提出了衡量城市绿化的方法，但是每个指标的特征尚未完全确定，从而使以前的研究很容易受到绿化指标的变化。为了使估计更加可靠，本研究的目的是（1）提出改进的分析使用可见性（标准化GVI； SGVI），以及（2）量化SGVI与其他绿化指标之间的关系。分析日本横滨城市的数据集，这表明SGVI是一种加权形式的GVI汇总到一个区域的加权形式，可减轻位置的测量位点的偏见。另外，通过比较城市街区的SGVI和NDVI，我们发现SGVI在市中心捕获了植被的存在，而NDVI可以更好地在公园和森林中捕获植被。这些工具为在更强大的物质中访问城市景观中植被的影响提供了基础，从而可以在任何任意地理范围内进行比较。
Urban greenery is considered an important factor in relation to sustainable development and people's quality of life in the city. Although ways to measure urban greenery have been proposed, the characteristics of each metric have not been fully established, rendering previous researches vulnerable to changes in greenery metrics. To make estimation more robust, this study aims to (1) propose an improved indicator of greenery visibility for analytical use (standardized GVI; sGVI), and (2) quantify the relation between sGVI and other greenery metrics. Analyzing a data set for Yokohama city, Japan, it is shown that the sGVI, a weighted form of GVI aggregated to an area, mitigates the bias of densely located measurement sites. Also, by comparing sGVI and NDVI at city block level, we found that sGVI captures the presence of vegetation better in the city center, whereas NDVI is better in capturing vegetation in parks and forests. These tools provide a foundation for accessing the effect of vegetation in urban landscapes in a more robust matter, enabling comparison on any arbitrary geographical scale.
