标准化绿景观指数与城市绿地不同尺度的量化
Standardized Green View Index and Quantification of Different Metrics of Urban Green Vegetation
摘要:
城市绿化被认为是关系到城市可持续发展和人们生活质量的重要因素。虽然已经提出了测量城市绿化的方法,但每个指标的特征还没有完全建立,使得以前的研究容易受到绿化指标变化的影响。为了使估算更加可靠,本研究旨在(1)提出一个用于分析的改进的绿色可见度指标(标准化GVI; sGVI),以及(2)量化sGVI和其他绿色指标之间的关系。分析数据集横滨市,日本,它表明,sGVI,加权形式的GVI聚集到一个区域,减轻了密集的测量站点的偏见。此外,通过比较城市街区级的sGVI和NDVI,我们发现sGVI更好地捕捉到了城市中心的植被,而NDVI更好地捕捉到了公园和森林中的植被。这些工具提供了一个基础,以更强大的方式评估城市景观中植被的影响,从而能够在任何任意地理尺度上进行比较。
英文摘要:
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.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。