Quantification of urban greenery using hemisphere-view panoramas with a green cover index
文献类型：期刊论文
| 作者 | Zhang, Yonglin; Li, Shanlin; Fu, Xiao; Dong, Rencai |
| 刊名 | ECOSYSTEM HEALTH AND SUSTAINABILITY
 |
| 出版日期 | 2021-01-01 |
| 卷号 | 7期号:1 |
| 关键词 | Urban greenery hemisphere-view panorama panoramic green cover index green vegetation threshold segmentation algorithm |
| ISSN号 | 2096-4129 |
| 英文摘要 | Urban greenery has positive impacts on the well-being of residents and provides vital ecosystem services. A quantitative evaluation of full-view green coverage at the human scale can guide green space planning and management. We developed a still camera to collect hemisphere-view panoramas (HVPs) to obtain in situ heterogeneous scenes and established a panoramic green cover index (PGCI) model to measure human-scale green coverage. A case study was conducted in Xicheng District, Beijing, to analyze the quantitative relationships of PGCI with the normalized difference vegetation index (NDVI) and land surface temperature (LST) in different land use scenarios. The results show that the HVP is a useful quantization tool: (1) the method adaptively distinguishes the green cover characteristics of the four functional areas, and the PGCI values are ranked as follows: recreational area (29.6) > residential area (19.0) > traffic area (15.9) > commercial area (12.5); (2) PGCI strongly explains NDVI and LST, and for each unit (1%) increase in PGCI, NDVI tends to increase by 0.007, and (3) LST tends to decrease by 0.21 degrees Celsius. This research provides government managers and urban planners with tools to evaluate green coverage in complex urban environments and assistance in optimizing human-scale greenery and microclimate. |
| WOS研究方向 | Ecology ; Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45542]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Natl Sci Lib, Beijing, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yonglin,Li, Shanlin,Fu, Xiao,et al. Quantification of urban greenery using hemisphere-view panoramas with a green cover index[J]. ECOSYSTEM HEALTH AND SUSTAINABILITY,2021,7(1). |
| APA | Zhang, Yonglin,Li, Shanlin,Fu, Xiao,&Dong, Rencai.(2021).Quantification of urban greenery using hemisphere-view panoramas with a green cover index.ECOSYSTEM HEALTH AND SUSTAINABILITY,7(1). |
| MLA | Zhang, Yonglin,et al."Quantification of urban greenery using hemisphere-view panoramas with a green cover index".ECOSYSTEM HEALTH AND SUSTAINABILITY 7.1(2021). |
入库方式： OAI收割
来源：生态环境研究中心
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