干旱区生态环境知识资源中心(Arid): Impacts of water resource development on hydrological connectivity of different floodplain habitats in a highly variable system

Arid

DOI	10.1002/rra.3409
	Impacts of water resource development on hydrological connectivity of different floodplain habitats in a highly variable system
	Higgisson, William; Higgisson, Brian; Powell, Megan; Driver, Patrick; Dyer, Fiona
通讯作者	Higgisson, W
来源期刊	RIVER RESEARCH AND APPLICATIONS
ISSN	1535-1459
EISSN	1535-1467
出版年	2020
卷号	36 期号:4 页码:542-552
英文摘要	Floodplains and their associated wetlands are important features of semiarid and arid landscapes, providing habitat and refugia for native species as well as contributing to human needs for freshwater. Globally, floodplain habitats are some of the most modified ecological communities because of water resource development and land-use changes. However, the hydrological changes that have occurred in highly variable semiarid and arid systems are rarely quantified in a way that helps us understand the consequences for different floodplain habitat types. This study investigated changes in floodplain-river connectivity that have occurred because of water resource development on four floodplain habitat types in the Lachlan River Catchment, Australia: (a) temporary floodplain lakes, (b) intermittent river red gum (Eucalyptus camaldulensis) swamps, (c) intermittent black box (Eucalyptus largiflorens) swamps, and (d) terminal wetlands (wetlands along distributary creeks). Changes to floodplain-river connectivity characteristics were calculated using their commence to fill thresholds and flow scenarios derived from a river hydrology model, enabling comparison of long-term data sets (120 years) encompassing a range of climate conditions. Connection regime metrics have changed significantly in all floodplain habitats except intermittent black box swamps. Temporary floodplain lakes have experienced the greatest reduction in number of connection events (60% reduction), followed by intermittent river red gum swamps (55% reduction). Intermittent black box swamps and terminal wetlands have experienced the least change in number of connection events (35% reduction). The nature of the change in connection suggests a change in vegetation communities will occur in response to long-term hydrological change.
英文关键词	environmental flow floodplain floods monitoring vegetation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000530042100004
WOS关键词	RIVER ECOSYSTEMS ; FLOW REGULATION ; COLORADO-RIVER ; GRAND-CANYON ; RESILIENCE ; DROUGHT ; VARIABILITY ; MANAGEMENT ; WETLANDS ; ECOLOGY
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324391
作者单位	[Higgisson, William; Dyer, Fiona] Univ Canberra, Inst Appl Ecol, Univ Dr, Canberra, ACT 2617, Australia; [Powell, Megan] NSW Off Environm & Heritage, Water Wetlands & Coastal Sci Branch, Lidcombe, NSW, Australia; [Powell, Megan] Macquarie Univ, Dept Environm Sci, Sydney, NSW, Australia; [Driver, Patrick] NSW Dept Ind Water Branch, Ecohydrol Team, Water Sci, Orange, NSW, Australia
推荐引用方式 GB/T 7714	Higgisson, William,Higgisson, Brian,Powell, Megan,et al. Impacts of water resource development on hydrological connectivity of different floodplain habitats in a highly variable system[J],2020,36(4):542-552.
APA	Higgisson, William,Higgisson, Brian,Powell, Megan,Driver, Patrick,&Dyer, Fiona.(2020).Impacts of water resource development on hydrological connectivity of different floodplain habitats in a highly variable system.RIVER RESEARCH AND APPLICATIONS,36(4),542-552.
MLA	Higgisson, William,et al."Impacts of water resource development on hydrological connectivity of different floodplain habitats in a highly variable system".RIVER RESEARCH AND APPLICATIONS 36.4(2020):542-552.