干旱区生态环境知识资源中心(Arid): Spatio-Temporal Analysis of Vegetation Dynamics in Relation to Shifting Inundation and Fire Regimes: Disentangling Environmental Variability from Land Management Decisions in a Southern African Transboundary Watershed

Arid

DOI	10.3390/land4030627
	Spatio-Temporal Analysis of Vegetation Dynamics in Relation to Shifting Inundation and Fire Regimes: Disentangling Environmental Variability from Land Management Decisions in a Southern African Transboundary Watershed
	Pricope, Narcisa G.; Gaughan, Andrea E.; All, John D.; Binford, Michael W.; Rutina, Lucas P.
通讯作者	Pricope, NG
来源期刊	LAND
EISSN	2073-445X
出版年	2015
卷号	4 期号:3 页码:627-655
英文摘要	Increasing temperatures and wildfire incidence and decreasing precipitation and river runoff in southern Africa are predicted to have a variety of impacts on the ecology, structure, and function of semi-arid savannas, which provide innumerable livelihood resources for millions of people. This paper builds on previous research that documents change in inundation and fire regimes in the Chobe River Basin (CRB) in Namibia and Botswana and proposes to demonstrate a methodology that can be applied to disentangle the effect of environmental variability from land management decisions on changing and ecologically sensitive savanna ecosystems in transboundary contexts. We characterized the temporal dynamics (1985-2010) of vegetation productivity for the CRB using proxies of vegetation productivity and examine the relative importance of shifts in flooding and fire patterns to vegetation dynamics and effects of the association of phases of the El NinoSouthern Oscillation (ENSO) on vegetation greenness. Our results indicate that vegetation in these semi-arid environments is highly responsive to climatic fluctuations and the long-term trend is one of increased but heterogeneous vegetation cover. The increased cover and heterogeneity during the growing season is especially noted in communally-managed areas of Botswana where long-term fire suppression has been instituted, in contrast to communal areas in Namibia where heterogeneity in vegetation cover is mostly increasing primarily outside of the growing season and may correspond to mosaic early dry season burns. Observed patterns of increased vegetation productivity and heterogeneity may relate to more frequent and intense burning and higher spatial variability in surface water availability from both precipitation and regional inundation patterns, with implications for global environmental change and adaptation in subsistence-based communities.
英文关键词	vegetation dynamics southern Africa climate change remote sensing savannas human-environment interactions
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000367319500005
WOS关键词	CHOBE-NATIONAL-PARK ; TIME-SERIES DATA ; EL-NINO ; LOXODONTA-AFRICANA ; ECOLOGICAL RESILIENCE ; SHRUB ENCROACHMENT ; TROPICAL SAVANNA ; CLIMATE-CHANGE ; RAINFALL ; NDVI
WOS类目	Environmental Studies
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/331192
作者单位	[Pricope, Narcisa G.] Univ N Carolina, Dept Geog & Geol, Wilmington, NC 28403 USA; [Gaughan, Andrea E.] Univ Louisville, Dept Geog & Geosci, Louisville, KY 40205 USA; [All, John D.] Western Kentucky Univ, Dept Geog & Geol, Bowling Green, KY 42101 USA; [Binford, Michael W.] Univ Florida, Dept Geog, Gainesville, FL 32611 USA; [Rutina, Lucas P.] Univ Botswana, Wildlife Ecol & Management, Okavango Res Inst, Gaborone, Botswana
推荐引用方式 GB/T 7714	Pricope, Narcisa G.,Gaughan, Andrea E.,All, John D.,et al. Spatio-Temporal Analysis of Vegetation Dynamics in Relation to Shifting Inundation and Fire Regimes: Disentangling Environmental Variability from Land Management Decisions in a Southern African Transboundary Watershed[J],2015,4(3):627-655.
APA	Pricope, Narcisa G.,Gaughan, Andrea E.,All, John D.,Binford, Michael W.,&Rutina, Lucas P..(2015).Spatio-Temporal Analysis of Vegetation Dynamics in Relation to Shifting Inundation and Fire Regimes: Disentangling Environmental Variability from Land Management Decisions in a Southern African Transboundary Watershed.LAND,4(3),627-655.
MLA	Pricope, Narcisa G.,et al."Spatio-Temporal Analysis of Vegetation Dynamics in Relation to Shifting Inundation and Fire Regimes: Disentangling Environmental Variability from Land Management Decisions in a Southern African Transboundary Watershed".LAND 4.3(2015):627-655.