Spatial Accessibility of Urban Forests in the Pearl River Delta (PRD), China

文献类型： 外文期刊

第一作者： Zhang, Rong

作者： Zhang, Rong;Zhou, Xuhui;Zhang, Rong;Zhou, Xuhui;Zhang, Rong;Chen, Jiquan;Ouyang, Zutao;Park, Hogeun;Yang, Xuchao;Fan, Peilei;Fan, Peilei;Shao, Changliang

作者机构：

关键词： accessibility; Google Earth Engine; landsat; travel time; urban green

期刊名称：REMOTE SENSING （ 影响因子：4.848； 五年影响因子：5.353 ）

ISSN： 2072-4292

年卷期： 2019 年 11 卷 6 期

页码：

收录情况： SCI

摘要： The Pearl River Delta (PRD) is one of the most important economic zones both in China and in the world. Its rapid economic development has been associated with many environmental problems such as the loss of forests in urban areas. We estimated the accessibility of forests in the PRD by quantifying spatial proximity and travel time. We found that distances from a large proportion of the points of interest (POIs) (similar to 45%) and urban lands (similar to 38%, where similar to 49 urban residents live) to the nearest forests were greater than 1000 m; suggesting a low spatial proximity to forests. Urban parksimportant outdoor recreational areasappeared to have insufficient forest coverage within their 1000 m buffer zones. When forest accessibility was measured by travel time under optimal modes of transport; it was less than 15 min for most urban lands (similar to 95%), which accommodates 98% of the total urban population. More importantly; the travel time to the nearest forest was negatively correlated with gross domestic product density (GDP(d)), but not with population density (POPd). The GDP(d) and POPd; however; increased log-linearly with the Euclidean distance to the nearest forest. In addition to the low proximity to forests; there existed inequalities among urban residents who live in areas with different levels of GDP(d) and POPd. Future urban planning needs not only to increase the total coverage of urban forests; but also to improve their spatial evenness across the urban landscapes in the PRD.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序