干旱区生态环境知识资源中心(Arid): Impacts of hydrologic and geomorphic alteration to the availability of shallow, low-velocity habitats in an intensively managed arid-land river

Arid

DOI	10.1002/rra.4338
	Impacts of hydrologic and geomorphic alteration to the availability of shallow, low-velocity habitats in an intensively managed arid-land river
	Mortensen, Jacob G.; Julien, Pierre Y.; Corsi, Brianna; Radobenko, Chelsey; Anderson, Tristen
通讯作者	Mortensen, JG
来源期刊	RIVER RESEARCH AND APPLICATIONS
ISSN	1535-1459
EISSN	1535-1467
出版年	2024
英文摘要	This study seeks better understanding of linkages between channel morphology, streamflow, and aquatic habitat for the effective rehabilitation of imperiled species in rivers subjected to intensive water resource management. We focused on the variability of shallow, low-velocity (SLV) habitat over 50 years for a 56 km reach of the Rio Grande of central New Mexico (Middle Rio Grande). Hydraulic models used topographic data obtained through long-term systematic monitoring between 1962 and 2012 to derive relationships between discharge and SLV habitat availability. We developed a temporally integrated habitat metric (TIHM) to facilitate quantitative comparisons of SLV habitat availability over seasonal hydrologic periods (base flow, spring runoff, and summer low flow) for selected years representative of contemporary discharge variations. Results showed that SLV habitat availability, as captured by TIHM values, decreased on average by 83% over the study period (1962-2012), corresponding to completion of the Cochiti Dam (1973), which profoundly altered flow and sediment regimes. Resulting channel incision and floodplain disconnection, caused shifts in discharge-habitat relationships whereby increases in SLV habitat availability in the modern channel were strictly maximized at the upper range of modeled discharges (200 m3 s-1)-discharges greater than 100 m3 s-1 are infrequent today. Ecological implications of losses to SLV habitat availability include recovery of the federally endangered Rio Grande Silvery Minnow Hybognathus amarus.
英文关键词	fish conservation geomorphology habitat availability hydraulic modeling long-term monitoring river restoration
类型	Article ; Early Access
语种	英语
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:001255701100001
WOS关键词	GRANDE SILVERY MINNOW ; NATURAL FLOW REGIME ; RIO-GRANDE ; LIFE-HISTORY ; FISH ; ECOSYSTEMS ; CONSERVATION ; BIODIVERSITY ; RESTORATION ; 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/2XILL650/405400
推荐引用方式 GB/T 7714	Mortensen, Jacob G.,Julien, Pierre Y.,Corsi, Brianna,et al. Impacts of hydrologic and geomorphic alteration to the availability of shallow, low-velocity habitats in an intensively managed arid-land river[J],2024.
APA	Mortensen, Jacob G.,Julien, Pierre Y.,Corsi, Brianna,Radobenko, Chelsey,&Anderson, Tristen.(2024).Impacts of hydrologic and geomorphic alteration to the availability of shallow, low-velocity habitats in an intensively managed arid-land river.RIVER RESEARCH AND APPLICATIONS.
MLA	Mortensen, Jacob G.,et al."Impacts of hydrologic and geomorphic alteration to the availability of shallow, low-velocity habitats in an intensively managed arid-land river".RIVER RESEARCH AND APPLICATIONS (2024).