干旱区生态环境知识资源中心(Arid): Importance of Phytobiomass and Ungulates to Hydrologic Function in a Temperate Grassland

Arid

DOI	10.1016/j.rama.2021.04.009
	Importance of Phytobiomass and Ungulates to Hydrologic Function in a Temperate Grassland
	Reinhart, Kurt O.; Vermeire, Lance T.
通讯作者	Reinhart, KO (corresponding author)，Ft Keogh Livestock & Range Res Lab, 243 Ft Keogh Rd, Miles City, MT 59301 USA.
来源期刊	RANGELAND ECOLOGY & MANAGEMENT
ISSN	1550-7424
EISSN	1551-5028
出版年	2021
卷号	78
英文摘要	Hydrologic dysfunction associated with desertification of grazing lands likely depends on two opposing biophysical drivers, compaction by livestock and bioturbation by plant roots and soil biota. To understand which is most important, we conducted a long-term field experiment. We tested the effects of phytobiomass (control vs. herbicide treated) and three ungulate disturbance treatments (none, once, and twice disturbed) on soil water transport in northern mixed-grass prairie. Field-saturated hydraulic conductivity (i.e., infiltration) was primarily reduced by the most severe (twice disturbed) ungulate disturbance treatment. To a lesser degree, ungulate disturbance and phytobiomass interacted, and similar levels of hydrologic dysfunction were detected for plots annually treated with herbicide and disturbed by a single livestock disturbance event (and while soils were dry and resistant to compaction) and naturally vegetated plots that had been twice disturbed (including while soils were wet and susceptible to compaction). Our findings suggest hydrologic dysfunction in grazing lands is mainly due to compaction by ungulates, especially when grazing at high stocking rates and while areas are vulnerable to compaction (e.g., fine soils, wet soils, not well vegetated). Published by Elsevier Inc. on behalf of The Society for Range Management.
英文关键词	Compaction Desertification Hydrologic dysfunction Infiltration
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000752373800001
WOS关键词	WATER INFILTRATION ; SOIL ; RUNOFF
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/375918
作者单位	[Reinhart, Kurt O.; Vermeire, Lance T.] USDA ARS, Ft Keogh Livestock & Range Res Lab, Miles City, MT 59301 USA
推荐引用方式 GB/T 7714	Reinhart, Kurt O.,Vermeire, Lance T.. Importance of Phytobiomass and Ungulates to Hydrologic Function in a Temperate Grassland[J],2021,78.
APA	Reinhart, Kurt O.,&Vermeire, Lance T..(2021).Importance of Phytobiomass and Ungulates to Hydrologic Function in a Temperate Grassland.RANGELAND ECOLOGY & MANAGEMENT,78.
MLA	Reinhart, Kurt O.,et al."Importance of Phytobiomass and Ungulates to Hydrologic Function in a Temperate Grassland".RANGELAND ECOLOGY & MANAGEMENT 78(2021).