干旱区生态环境知识资源中心(Arid): Vegetation Responses to Fixed Stocking Densities in Highly Variable Montane Pastures in the Chinese Altay

Arid

DOI	10.1016/j.rama.2019.05.007
	Vegetation Responses to Fixed Stocking Densities in Highly Variable Montane Pastures in the Chinese Altay
	Lv, Chaoyan 1,8; Schlecht, Eva 2,3; Goenster-Jordan, Sven 4; Buerkert, Andreas 4; Zhang, Ximing1 ; Wesche, Karsten 5,6,7
通讯作者	Schlecht, Eva
来源期刊	RANGELAND ECOLOGY & MANAGEMENT
ISSN	1550-7424
EISSN	1551-5028
出版年	2019
卷号	72 期号:5 页码:812-821
英文摘要	Variability in aboveground herbaceous biomass and its quality were studied in response to three different stocking densities during a 2-yr grazing experiment with sheep on a montane summer pasture in the Chinese Altay. We determined herbaceous cover and aboveground biomass in 16 paddocks of 0.25 ha each. Vegetation cover showed high spatial variation, prompting us to implement a randomized block design. Forage intake of one male sheep per paddock was quantified four times per grazing season by collection of total feces and estimation of diet digestibility. Sheep weight was recorded every 3 wk. Aboveground herbaceous dry mass (DM) was characterized by pronounced annual variation. Biomass quality declined with progressing season and increasing sheep density. Daily organic matter intake per sheep ranged from 0.7 to 1.4 kg, which was paralleled by a biomass removal of 710-1 560 kg DM/ha at densities of 8-24 sheep/ha. At 8 sheep/ha, animals gained weight throughout each grazing period, whereas weight losses of 40-100 g/d occurred at higher densities. These results challenge the presently followed concept of a fixed stocking density for summer pastures in Altay Prefecture, Xinjian, China. Such practice may result in lowherbage allowances and thus deficient sheep nutrition in one year, as well as underutilization of forage resources in another. Flexible adjustment of stocking densities is also advisable for montane pastures where spatiotemporal variability, although less pronounced than in desert steppes of the Altay foothills, is nonetheless highly relevant. (C) 2019 The Society for Range Management. Published by Elsevier Inc. All rights reserved.
英文关键词	herbage intake sheep stocking density summer pasture Xinjian
类型	Article
语种	英语
国家	Peoples R China ; Germany
收录类别	SCI-E
WOS记录号	WOS:000486947000012
WOS关键词	QINGHAI-TIBETAN PLATEAU ; INNER MONGOLIAN STEPPE ; LIVE WEIGHT-GAIN ; SEMIARID GRASSLAND ; HERBAGE QUALITY ; FEED-INTAKE ; NORTHERN CHINA ; CLIMATE-CHANGE ; FORAGE INTAKE ; SHEEP
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218305
作者单位	1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi, Peoples R China; 2.Univ Kassel, Anim Husb Trop & Subtrop, D-37213 Witzenhausen, Germany; 3.Univ Gottingen, D-37213 Witzenhausen, Germany; 4.Univ Kassel, Organ Plant Prod & Agroecosyst Res Trop & Subtrop, D-37213 Witzenhausen, Germany; 5.Senckenberg Museum Nat Hist Gorlitz, D-02806 Gorlitz, Germany; 6.German Ctr Integrat Biodivers Res iDiv, D-04103 Leipzig, Germany; 7.Tech Univ Dresden, Int Inst Zittau, D-02763 Zittau, Germany; 8.Zunyi Normal Univ, Coll Biol & Agr, 6 Wujiang Ave, Zunyi, Guizhou, Peoples R China
推荐引用方式 GB/T 7714	Lv, Chaoyan,Schlecht, Eva,Goenster-Jordan, Sven,et al. Vegetation Responses to Fixed Stocking Densities in Highly Variable Montane Pastures in the Chinese Altay[J]. 中国科学院新疆生态与地理研究所,2019,72(5):812-821.
APA	Lv, Chaoyan,Schlecht, Eva,Goenster-Jordan, Sven,Buerkert, Andreas,Zhang, Ximing,&Wesche, Karsten.(2019).Vegetation Responses to Fixed Stocking Densities in Highly Variable Montane Pastures in the Chinese Altay.RANGELAND ECOLOGY & MANAGEMENT,72(5),812-821.
MLA	Lv, Chaoyan,et al."Vegetation Responses to Fixed Stocking Densities in Highly Variable Montane Pastures in the Chinese Altay".RANGELAND ECOLOGY & MANAGEMENT 72.5(2019):812-821.