干旱区生态环境知识资源中心(Arid): Responses of palatable plants to climate and grazing in semiarid grasslands of Mongolia

Arid

DOI	10.1016/j.gecco.2020.e01231
	Responses of palatable plants to climate and grazing in semiarid grasslands of Mongolia
	Nakano, Tomoko; Bat-Oyun, Tserenpurev; Shinoda, Masato
通讯作者	Nakano, T (corresponding author), Chuo Univ, Fac Econ, Hachioji, Tokyo 1920393, Japan.
来源期刊	GLOBAL ECOLOGY AND CONSERVATION
ISSN	2351-9894
出版年	2020
卷号	24
英文摘要	Grassland ecosystems are essential resources for mobile pastoralism in drylands. Understanding the temporal variability and disturbance in palatable species in grasslands is a key issue in nature conservation and human economy. In this study, we examined plant trait responses to climate and grazing variability in semi-arid grasslands of Mongolia. Ungrazed exclosure areas were established in two nomadically grazed grasslands, Bayan-Unjuul (BU) in 2004 and Baganuur (BN) in 2016. Plant aboveground biomass (AGB) was surveyed by species inside and outside the exclosures. Plant species were classified into 11 groups on the basis of palatability, life duration, and functional type. Data on air temperature and precipitation were obtained from weather observatories, and the number of livestock was monitored by using time-lapse cameras since 2016 at BU and BN. Analysis of temporal variation from 2004 to 2019 in the ungrazed plot at BU indicated that the aridity index, which was closely correlated with precipitation, in JuneeJuly of the current year affected the AGB of both palatable and unpalatable species. Rainfall intensity in June contributed to the increase in AGB of palatable plants, in particular perennial grasses. Previous years' aridity affected the current-year AGB, which is known as the legacy effect. The legacy effect was positive on perennial grasses and forbs and negative on annual forbs, resulting in a positive effect on the ratio of AGB of palatable species to total AGB. The increase in livestock numbers in summer decreased the ratio of AGB of palatable plants in the grazed plots to that in the ungrazed plots, and increased this ratio of annual forbs and unpalatable perennial shrubs. A multiple regression model showed that AGB of palatable plants in the grazed areas was controlled primarily by rainfall intensity in June of the current year and secondarily by livestock number in summer. (C) 2020 The Author(s). Published by Elsevier B.V.
英文关键词	Aridity Dryland Grazing Mongolia Palatability Semi-arid grassland
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000608478800013
WOS关键词	INTERANNUAL VARIATION ; PRIMARY PRODUCTIVITY ; ABOVEGROUND BIOMASS ; VEGETATION DYNAMICS ; TRAIT RESPONSES ; PRECIPITATION ; DROUGHT ; WATER ; DESERTIFICATION ; VARIABILITY
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348894
作者单位	[Nakano, Tomoko] Chuo Univ, Fac Econ, Hachioji, Tokyo 1920393, Japan; [Bat-Oyun, Tserenpurev] Informat & Res Inst Meteorol Hydrol & Environm, Ulaanbaatar 15160, Mongolia; [Shinoda, Masato] Nagoya Univ, Grad Sch Environm Studies, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648601, Japan
推荐引用方式 GB/T 7714	Nakano, Tomoko,Bat-Oyun, Tserenpurev,Shinoda, Masato. Responses of palatable plants to climate and grazing in semiarid grasslands of Mongolia[J],2020,24.
APA	Nakano, Tomoko,Bat-Oyun, Tserenpurev,&Shinoda, Masato.(2020).Responses of palatable plants to climate and grazing in semiarid grasslands of Mongolia.GLOBAL ECOLOGY AND CONSERVATION,24.
MLA	Nakano, Tomoko,et al."Responses of palatable plants to climate and grazing in semiarid grasslands of Mongolia".GLOBAL ECOLOGY AND CONSERVATION 24(2020).