干旱区生态环境知识资源中心(Arid): PioLaG: a piosphere landscape generator for savanna rangeland modelling

Arid

DOI	10.1007/s10980-020-01066-w
	PioLaG: a piosphere landscape generator for savanna rangeland modelling
	Hess, Bastian; Dreber, Niels; Liu, Yihui; Wiegand, Kerstin; Ludwig, Marvin; Meyer, Hanna; Meyer, Katrin M.
通讯作者	Hess, B
来源期刊	LANDSCAPE ECOLOGY
ISSN	0921-2973
EISSN	1572-9761
出版年	2020
卷号	35 期号:9 页码:2061-2082
英文摘要	Context Piospheres describe herbivore utilization gradients around watering points, as commonly found in grass-dominated ecosystems. Spatially explicit, dynamic models are ideal tools to study the ecological and economic problems associated with the resulting land degradation. However, there is a need for appropriate landscape input maps to these models that depict plausible initial vegetation patterns under a range of scenarios. Objectives Our goal was to develop a spatially-explicit piosphere landscape generator (PioLaG) for semi-arid savanna rangelands with a focus on realistic vegetation zones and spatial patterns of basic plant functional types around livestock watering points. Methods We applied a hybrid modelling approach combining aspects of both process- and pattern-based modelling. Exemplary parameterization of PioLaG was based on literature data and expert interviews in reference to Kalahari savannas. PioLaG outputs were compared with piosphere formations identified on aerial images. Results PioLaG allowed to create rangeland landscapes with piospheres that can be positioned within flexible arrangements of grazing units (camps). The livestock utilization gradients showed distinct vegetation patterns around watering points, which varied according to the pre-set initial rangeland condition, grazing regime and management type. The spatial characteristics and zoning of woody and herbaceous vegetation were comparable to real piosphere patterns. Conclusions PioLaG can provide important input data for spatial rangeland models that simulate site-specific savanna dynamics. The created landscapes can also be used as a direct decision support for land managers in attempts to maintain or restore landscape functionality and key ecosystem services such as forage production.
英文关键词	Disturbance Grazing gradient Land degradation Range management Savanna model Bush thickening Shrub encroachment NetLogo Piosphere landscape generator PioLaG
类型	Article
语种	英语
开放获取类型	Other Gold
收录类别	SCI-E
WOS记录号	WOS:000548465000001
WOS关键词	SENSITIVITY-ANALYSIS ; BUSH ENCROACHMENT ; LAND DEGRADATION ; WATERING POINTS ; WOODY-PLANTS ; VEGETATION ; GRADIENTS ; PATTERNS ; CATTLE ; SCALE
WOS类目	Ecology ; Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325031
作者单位	[Hess, Bastian; Dreber, Niels; Liu, Yihui; Wiegand, Kerstin; Meyer, Katrin M.] Univ Gottingen, Fac Forest Sci & Forest Ecol, Dept Ecosyst Modelling, Busgenweg 4, D-37077 Gottingen, Germany; [Hess, Bastian] Julius Kuhn Inst, Fed Res Ctr Cultivated Plants, Messeweg 11-12, D-38104 Braunschweig, Germany; [Dreber, Niels] DLR Project Management Agcy, Dept Environm & Sustainabil, Div Social Ecol Res, Heinrich Konen Str 1, D-53227 Bonn, Germany; [Ludwig, Marvin; Meyer, Hanna] Philipps Univ Marburg, Fac Geog, Environm Informat, Deutschhausstr 12, D-35032 Marburg, Germany; [Meyer, Hanna] Univ Munster, Inst Geoinformat, Environm Remote Sensing, Heisenbergstr 2, D-48149 Munster, Germany
推荐引用方式 GB/T 7714	Hess, Bastian,Dreber, Niels,Liu, Yihui,et al. PioLaG: a piosphere landscape generator for savanna rangeland modelling[J],2020,35(9):2061-2082.
APA	Hess, Bastian.,Dreber, Niels.,Liu, Yihui.,Wiegand, Kerstin.,Ludwig, Marvin.,...&Meyer, Katrin M..(2020).PioLaG: a piosphere landscape generator for savanna rangeland modelling.LANDSCAPE ECOLOGY,35(9),2061-2082.
MLA	Hess, Bastian,et al."PioLaG: a piosphere landscape generator for savanna rangeland modelling".LANDSCAPE ECOLOGY 35.9(2020):2061-2082.