干旱区生态环境知识资源中心(Arid): Modelling Impacts of Environmental Water on Vegetation of a Semi-Arid Floodplain-Lakes System Using 30-Year Landsat Data

Arid

DOI	10.3390/rs14030708
	Modelling Impacts of Environmental Water on Vegetation of a Semi-Arid Floodplain-Lakes System Using 30-Year Landsat Data
	Wu, Chunying; Webb, James Angus; Stewardson, Michael J.
通讯作者	Wu, CY (corresponding author)，Univ Melbourne, Fac Engn & IT, Dept Infrastruct Engn, Melbourne, Vic 3010, Australia. ; Wu, CY (corresponding author)，Univ Melbourne, Australian German Climate & Energy Coll, Melbourne, Vic 3010, Australia. ; Wu, CY (corresponding author)，Karlsruhe Inst Technol, Inst Appl Geosci, D-76131 Karlsruhe, Germany.
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2022
卷号	14 期号:3
英文摘要	River floodplains are among the most dynamic and diverse ecosystems on the planet. They are at risk of degradation due to river regulation and climate change. Environmental water has been delivered to floodplains to maintain environmental health by mimicking natural floods. It is important to understand the long-term effects of environmental water to floodplain vegetation to support its management. This study used Normalized Differences Vegetation index (NDVI) from the 30-year Landsat datasets of the Hattah Lakes floodplain in Australia to investigate the drivers of vegetation dynamics. We developed generalized additive mixed models (GAMM) to model responses of vegetation to environmental water, natural floods, precipitation, temperature, and distance to water across multiple spatial and temporal scales. We found the effect of environmental water on floodplain vegetation to be quite different from that of natural floods in both space and time. Vegetation in most areas of Hattah Lakes will respond to natural floods within one month of flooding, while positive responses to environmental water occur 1 to 3 months after inundation and are more restricted spatially. For environmental water planning, managers need to be aware of these differences. The implementation of new infrastructure to transport or retain environmental water on floodplains needs to be planned carefully, with continuous monitoring of rainfall and natural floods. Whilst environmental floods do not mimic the effect of natural floods, they do provide some positive benefits that can partially offset effects of reduced natural floods.
英文关键词	environmental water vegetation normalized differences vegetation index (NDVI) generalized additive mixed model (GAMM) Hattah Lakes climate change
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000759461900001
WOS关键词	RIVER ; FLOW ; INUNDATION ; CLIMATE ; MURRAY ; INDEX ; CONNECTIVITY ; CHALLENGES ; GREENNESS ; RESPONSES
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376393
作者单位	[Wu, Chunying; Webb, James Angus; Stewardson, Michael J.] Univ Melbourne, Fac Engn & IT, Dept Infrastruct Engn, Melbourne, Vic 3010, Australia; [Wu, Chunying] Univ Melbourne, Australian German Climate & Energy Coll, Melbourne, Vic 3010, Australia; [Wu, Chunying] Karlsruhe Inst Technol, Inst Appl Geosci, D-76131 Karlsruhe, Germany
推荐引用方式 GB/T 7714	Wu, Chunying,Webb, James Angus,Stewardson, Michael J.. Modelling Impacts of Environmental Water on Vegetation of a Semi-Arid Floodplain-Lakes System Using 30-Year Landsat Data[J],2022,14(3).
APA	Wu, Chunying,Webb, James Angus,&Stewardson, Michael J..(2022).Modelling Impacts of Environmental Water on Vegetation of a Semi-Arid Floodplain-Lakes System Using 30-Year Landsat Data.REMOTE SENSING,14(3).
MLA	Wu, Chunying,et al."Modelling Impacts of Environmental Water on Vegetation of a Semi-Arid Floodplain-Lakes System Using 30-Year Landsat Data".REMOTE SENSING 14.3(2022).