干旱区生态环境知识资源中心(Arid): The impacts of cattle access points on deposited sediment levels in headwater streams in Ireland

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DOI	10.1002/rra.3382
	The impacts of cattle access points on deposited sediment levels in headwater streams in Ireland
	O’sullivan, Matthew 1; HUallachain, Daire O.2; Antunes, Patricia Oliveira 3; Jennings, Eleanor 3; Kelly-Quinn, Mary 1,4
通讯作者	O’sullivan, Matthew
来源期刊	RIVER RESEARCH AND APPLICATIONS
ISSN	1535-1459
EISSN	1535-1467
出版年	2019
卷号	35 期号:2 页码:146-158
英文摘要	Cattle access to streams has been linked globally with degradation of stream water quality, driven largely by bank erosion and resultant instream, fine sediment deposition. The majority of evidence on such effects is however based in arid and semiarid regions of the United States and Australia, with few studies relating to cool temperate climates such as Northwest Europe. In this study, Quorer resuspendable sediment samples were taken from riffle geomorphic units upstream (control) and at two points downstream (pressure and recovery) of cattle access points in headwater streams in agricultural catchments in Ireland to assess levels of deposited stream sediment. Samples were taken in April/May (2016) prior to the grazing season and in October (2016) at the end of the grazing season. Sites in good-high ecological status catchments and less than good ecological status catchments were included in the study. Higher levels of sediment were found downstream of cattle access points in both good-high status and less than good status catchments; however, the impacts of access points were spatially confined to, in most cases, the area immediately downstream of the point of access. There was a strong correlation between deposited sediment mass and organic matter (OM) mass, with levels of OM increasing linearly with deposited sediment mass. Levels of measured sediment were negatively correlated with riparian habitat health (measured using a qualitative habitat assessment). The results of this study highlight the need for measures to prevent cattle access to headwater streams where access points can be many in order to manage local habitat quality and downstream water quality issues.
英文关键词	cattle access cumulative effects deposited sediment instream habitat quality riparian habitat
类型	Article
语种	英语
国家	Ireland
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000457792400005
WOS关键词	BENTHIC INVERTEBRATE ASSEMBLAGES ; WATER-QUALITY ; SUSPENDED-SEDIMENT ; FINE SEDIMENT ; AGRICULTURAL CATCHMENT ; ECOSYSTEM SERVICES ; LAND-USE ; MACROINVERTEBRATE COMMUNITIES ; SOUTHEASTERN MINNESOTA ; LIVESTOCK EXCLUSION
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/2XILL650/218518
作者单位	1.Univ Coll Dublin, Sch Biol & Environm Sci, Freshwater Ecol Res Grp, Dublin, Ireland; 2.Teagasc Agroecol, Johnstown Castle Res Ctr, Wexford, Ireland; 3.Dundalk Inst Technol, Ctr Freshwaters & Environm Studies, Dublin, Ireland; 4.Univ Coll Dublin, Earth Inst, Dublin, Ireland
推荐引用方式 GB/T 7714	O’sullivan, Matthew,HUallachain, Daire O.,Antunes, Patricia Oliveira,et al. The impacts of cattle access points on deposited sediment levels in headwater streams in Ireland[J],2019,35(2):146-158.
APA	O’sullivan, Matthew,HUallachain, Daire O.,Antunes, Patricia Oliveira,Jennings, Eleanor,&Kelly-Quinn, Mary.(2019).The impacts of cattle access points on deposited sediment levels in headwater streams in Ireland.RIVER RESEARCH AND APPLICATIONS,35(2),146-158.
MLA	O’sullivan, Matthew,et al."The impacts of cattle access points on deposited sediment levels in headwater streams in Ireland".RIVER RESEARCH AND APPLICATIONS 35.2(2019):146-158.