干旱区生态环境知识资源中心(Arid): Effect of simulated grazing on sediment trapping by single plants: A wind-tunnel experiment with two grassland species in Mongolia

Arid

DOI	10.1016/j.catena.2021.105262
	Effect of simulated grazing on sediment trapping by single plants: A wind-tunnel experiment with two grassland species in Mongolia
	Kinugasa, Toshihiko; Sagayama, Toko; Gantsetseg, Batdelger; Liu, Jiaqi; Kimura, Reiji
通讯作者	Kinugasa, T (corresponding author), Tottori Univ, Fac Agr, 4-101 Koyama Minami, Tottori 6808553, Japan.
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2021
卷号	202
英文摘要	Vegetative cover suppresses dust storms in arid regions. Rearing livestock is a major industry in arid regions, and although livestock consume grass, the effect of their grazing on the ability of grass to trap sediments is not well understood. This study quantified the effect of plant clipping, a mimic of animal grazing, on sediment trapping by single plants in a wind-tunnel experiment. The study focused on two grass species, Stipa krylovii and Agropyron cristatum, which are native to the Mongolian steppe and are highly palatable for livestock. The two species were grown to a height of approximately 30 cm, and then single plants were placed in a wind tunnel. The frontal area of the plant was photographed before and during 5 min of wind blowing at a velocity of 8 m s(-1). The sediment that accumulated behind the plant was measured after the trial. The top 5 cm of the plant was then clipped away, and the plant was subjected to another wind-blowing trial. This experimental sequence was repeated until the above-ground part of the plant had been entirely removed. Although bending of S. krylovii in the wind was clearly apparent, bending ceased when the upper part of the plant body had been clipped away. Clipping reduced the frontal area, but there was little decrease in sediment accumulation until all of the above-ground biomass had been removed. These results indicated that sediment trapping by a single plant was likely attributable to the sheltering effect created by the lower part of the above-ground plant body; the flexible upper portion of the plant body apparently contributed very little to sediment trapping. The loss of the upper part of the bodies of grasses via grazing should therefore have little effect on sediment trapping when the plants are solitary or very sparsely dispersed.
英文关键词	Clipping Flexibility Frontal area Grass Grazing
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000643594100031
WOS关键词	SAND TRANSPORT ; DESERT DUST ; BLOWN SAND ; VEGETATION ; EROSION ; FLUX ; DEPOSITION ; PATTERNS ; SPEED ; FIELD
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349802
作者单位	[Kinugasa, Toshihiko; Sagayama, Toko] Tottori Univ, Fac Agr, 4-101 Koyama Minami, Tottori 6808553, Japan; [Gantsetseg, Batdelger] Informat & Res Inst Meteorol Hydrol & Environm, Ulaanbaatar 15160, Mongolia; [Liu, Jiaqi; Kimura, Reiji] Tottori Univ, Arid Land Res Ctr, 1390 Hamasaka, Tottori 6800001, Japan
推荐引用方式 GB/T 7714	Kinugasa, Toshihiko,Sagayama, Toko,Gantsetseg, Batdelger,et al. Effect of simulated grazing on sediment trapping by single plants: A wind-tunnel experiment with two grassland species in Mongolia[J],2021,202.
APA	Kinugasa, Toshihiko,Sagayama, Toko,Gantsetseg, Batdelger,Liu, Jiaqi,&Kimura, Reiji.(2021).Effect of simulated grazing on sediment trapping by single plants: A wind-tunnel experiment with two grassland species in Mongolia.CATENA,202.
MLA	Kinugasa, Toshihiko,et al."Effect of simulated grazing on sediment trapping by single plants: A wind-tunnel experiment with two grassland species in Mongolia".CATENA 202(2021).