干旱区生态环境知识资源中心(Arid): Is the temporary grazing exclusion a good management alternative for arid peatlands?

Arid

DOI	10.1080/15324982.2018.1563242
	Is the temporary grazing exclusion a good management alternative for arid peatlands?
	Carevic, Felipe S.1; Anderson, Maira 1; Munoz, Avelino 2
通讯作者	Carevic, Felipe S.
来源期刊	ARID LAND RESEARCH AND MANAGEMENT
ISSN	1532-4982
EISSN	1532-4990
出版年	2019
卷号	33 期号:3 页码:339-349
英文摘要	Highland peatlands are one of the most fragile ecosystems in the world. These ecosystems have vital nutritional importance for livestock, however previous research has indicated that intensive grazing could negatively affect these communities, requiring the application of temporary grazing exclusion to restore the health of the peatland. The objective of our study was to evaluate the effect of grazing exclusion on plant allocation strategy and carrying capacity of Oxychloe andina Phil. The plant traits of O. andina were quantified through measurements of specific leaf area (SLA) and leaf dry matter content (LDMC). We estimated the carrying capacity through livestock censuses and vegetational transects. SLA was found to be greater in grazed conditions than in ungrazed conditions (p = 0.0194) at five months after the application of treatments. Additionally, greater productivity associated with greater LDMC in March was observed under conditions of grazing exclusion (p = 0.0306). Production estimates of O. andina reached 4816 kg of dry matter (DM) distributed over an area of 9.84 ha, which was equivalent to 489 kg DM of O. andina DM ha(-1). Using DM production as a proxy of the peatland and considering the average vegetation cover of 70%, the peatland produces an estimated of 1370 kg DM year(-1). The temporary grazing exclusion enhanced the productivity of O. andina. However, depending on DM production in relation to grazing demand, there is a possibility of exceeding the animal load for this plant species.
英文关键词	Atacama desert Oxychloe andina peatlands plant allocation strategy
类型	Article
语种	英语
国家	Chile
收录类别	SCI-E
WOS记录号	WOS:000467749700006
WOS关键词	HIGH-ELEVATION PEATLANDS ; ANDEAN WETLANDS ; LEAF-AREA ; VEGETATION ; DYNAMICS ; PRODUCTIVITY ; LIVESTOCK ; TRAITS ; PLANTS
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214393
作者单位	1.Arturo Prat Univ, Fac Renewable Nat Resources, Lab Plant Ecol, Iquique, Chile; 2.Aquaculture Dev Area, Iquique, Chile
推荐引用方式 GB/T 7714	Carevic, Felipe S.,Anderson, Maira,Munoz, Avelino. Is the temporary grazing exclusion a good management alternative for arid peatlands?[J],2019,33(3):339-349.
APA	Carevic, Felipe S.,Anderson, Maira,&Munoz, Avelino.(2019).Is the temporary grazing exclusion a good management alternative for arid peatlands?.ARID LAND RESEARCH AND MANAGEMENT,33(3),339-349.
MLA	Carevic, Felipe S.,et al."Is the temporary grazing exclusion a good management alternative for arid peatlands?".ARID LAND RESEARCH AND MANAGEMENT 33.3(2019):339-349.