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Inducing flooding index for vegetation mapping in water-land ecotone with Sentinel-1 & Sentinel-2 images: A case study in Dongting Lake, China

文献类型：期刊论文

作者Tan, Jianbo4; Chen, Mingqiang4; Ao, Cheng5; Zhao, Guang3; Lei, Guangbin1; Tang, Yi4; Wang, Bo2; Li, Ainong1
刊名ECOLOGICAL INDICATORS
出版日期2022-11-01
卷号144页码:13
关键词Inundation frequency indicator Vegetation classification Water -land ecotone Sentinel-1 & 2 images Dongting Lake
ISSN号1470-160X
DOI10.1016/j.ecolind.2022.109448
通讯作者Li, Ainong(ainongli@imde.ac.cn)
英文摘要Water-land ecotone is a core area of wetlands which play an important role in ecological function. The infor-mation of vegetation type on the water-land ecotone is important for detecting the health of the wetland, and its protection. Seasonal flooding is a key factor in controlling the environment in water-land ecotone. Even pre-venting direct detection of the flooded vegetation with satellites, seasonal flooding has effects on the distribution of plants, which may provide potential information on vegetation classification with satellites. Therefore, the study induces flooding index in vegetation mapping in water-land ecotone with satellites. We applied Sentinel-1 and Sentinel-2 images to map vegetation in the Dongting Lake with random forest method. The Sentinel-1 SAR images were used to obtain the flooding index (i.e. inundation frequency), and Sentinel-2 images were applied to acquire the optical characteristic of vegetation. A comparative experiment based on whether the flooding index was added or not during vegetation mapping in the Dongting Lake was carried out to explore the role of flooding index in vegetation mapping. The results concluded that (1) seasonal flooding will hinder vegetation mapping using a single phase of optical information; (2) the classification accuracy of single phase scenario was signifi-cantly improved with the aid of flooding index especially in wet season; (3) the classification accuracy can be somewhat improved by adding flooding index for the multi-temporal scenario. The study implies that inundation frequency information can be used for vegetation mapping in water-land ecotone, especially for complex regions with insufficient cloud-free satellite images.
WOS关键词WETLAND LANDSCAPE ; CONNECTED LAKES ; CLOUD REMOVAL ; YANGTZE-RIVER ; POYANG LAKE ; COVER TYPES ; CLASSIFICATION ; FEATURES ; IMPACTS ; NDWI
资助项目Scientific Research Foundation of Hunan Education Department[19C0043] ; Second Tibetan Plateau Scientific Expedition and Research Program[2019QZKK0308] ; Changsha University of Science and Technology Graduate Research Innovation Project Project[CXCLY2022022]
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000864629100002
出版者ELSEVIER
资助机构Scientific Research Foundation of Hunan Education Department ; Second Tibetan Plateau Scientific Expedition and Research Program ; Changsha University of Science and Technology Graduate Research Innovation Project Project
源URL[http://ir.igsnrr.ac.cn/handle/311030/185454]  
专题中国科学院地理科学与资源研究所
通讯作者Li, Ainong
作者单位1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.China Geol Survey, Xian Ctr Mineral Resources Survey, Xian 710100, Shanxi, Peoples R China
3.Chinese Acad Sci Lib, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
4.Changsha Univ Sci & Technol, Sch Traff & Transportat Engn, Changsha 410114, Peoples R China
5.Third Surveying & Mapping Inst Hunan Prov, Changsha 410114, Peoples R China
推荐引用方式
GB/T 7714		 Tan, Jianbo,Chen, Mingqiang,Ao, Cheng,et al. Inducing flooding index for vegetation mapping in water-land ecotone with Sentinel-1 & Sentinel-2 images: A case study in Dongting Lake, China[J]. ECOLOGICAL INDICATORS,2022,144:13.
APA Tan, Jianbo.,Chen, Mingqiang.,Ao, Cheng.,Zhao, Guang.,Lei, Guangbin.,...&Li, Ainong.(2022).Inducing flooding index for vegetation mapping in water-land ecotone with Sentinel-1 & Sentinel-2 images: A case study in Dongting Lake, China.ECOLOGICAL INDICATORS,144,13.
MLA Tan, Jianbo,et al."Inducing flooding index for vegetation mapping in water-land ecotone with Sentinel-1 & Sentinel-2 images: A case study in Dongting Lake, China".ECOLOGICAL INDICATORS 144(2022):13.

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来源：地理科学与资源研究所

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