气候变化领域集成服务门户(CCPortal): Mapping the spatial distribution of alpine shrubs on the Qinghai-Tibet Plateau using Sentinel-2 images

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DOI	10.1080/2150704X.2023.2185112
	Mapping the spatial distribution of alpine shrubs on the Qinghai-Tibet Plateau using Sentinel-2 images
	Liu, Linzhi; Yang, Qichi; Yan, Xue; Jia, Xiaofeng; Wang, Lihui; Du, Yun; Ling, Feng
发表日期	2023
ISSN	2150-704X
EISSN	2150-7058
起始页码	254
结束页码	264
卷号	14 期号:3
英文摘要	Shrubs are typical vegetation on the Qinghai - Tibet Plateau, and their spatial distribution pattern is crucial for understanding the regional ecological environment. Existing global land cover products cannot represent shrubs well in this area, and the relationship between shrubs and the corresponding environmental factors is still unclear. In this study, using the Dogxung Zangbo River Basin as an example, Sentinel-2 images were applied to estimate the regional shrub fraction image, using the random forest regression model trained with samples generated from fine-resolution Jilin-1 images. The estimated shrub fraction image was further analysed using an elevation dataset to explore the impact of topography on the spatial distribution of shrubs. The results showed that using Sentinel-2 images acquired in both plant growing and non-growing seasons can better distinguish shrubs from grass than using only one season of data, and the coefficient of determination and root-mean-square error derived from this model were 0.821 and 0.087, respectively. The shrub distribution was strongly correlated with topography. In the study area, areas with a southeast or south orientation and large slope are more suitable for shrub growth.
关键词	Qinghai-Tibet Plateau random forest shrub fraction
英文关键词	COVER
WOS研究方向	Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:000942803700001
来源期刊	REMOTE SENSING LETTERS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282709
作者单位	Chinese Academy of Sciences; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Chinese Academy of Sciences; Wuhan Botanical Garden, CAS; Chinese Academy of Sciences
推荐引用方式 GB/T 7714	Liu, Linzhi,Yang, Qichi,Yan, Xue,et al. Mapping the spatial distribution of alpine shrubs on the Qinghai-Tibet Plateau using Sentinel-2 images[J],2023,14(3).
APA	Liu, Linzhi.,Yang, Qichi.,Yan, Xue.,Jia, Xiaofeng.,Wang, Lihui.,...&Ling, Feng.(2023).Mapping the spatial distribution of alpine shrubs on the Qinghai-Tibet Plateau using Sentinel-2 images.REMOTE SENSING LETTERS,14(3).
MLA	Liu, Linzhi,et al."Mapping the spatial distribution of alpine shrubs on the Qinghai-Tibet Plateau using Sentinel-2 images".REMOTE SENSING LETTERS 14.3(2023).