干旱区生态环境知识资源中心(Arid): Vegetation dynamics in the face of a major land-use change: a 30-year case study from semi-arid South Africa

Arid

DOI	10.2989/10220119.2019.1627582
	Vegetation dynamics in the face of a major land-use change: a 30-year case study from semi-arid South Africa
	Hyvarinen, Olli 1,2; Hoffman, M. Timm 3; Reynolds, Chevonne 1,4
通讯作者	Hyvarinen, Olli
来源期刊	AFRICAN JOURNAL OF RANGE & FORAGE SCIENCE
ISSN	1022-0119
EISSN	1727-9380
出版年	2019
卷号	36 期号:3 页码:141-150
英文摘要	Although wildlife production is widely considered beneficial for semi-arid environments, few studies have reported on the long-term environmental effects of converting from livestock production to game ranching. Asante Sana Game Reserve in South Africa was stocked with domestic livestock for centuries. However, after 1996 game ranching was adopted in the reserve. We investigated the long-term (1987-2017) spatial and temporal change in vegetation productivity and type on the reserve using Landsat multispectral data and soil adjusted vegetation index (SAVI), and explored the relationship between changes in vegetation productivity and the potential drivers. The results show that while Thicket has decreased overall, it has expanded into parts of Grassland and Shrubland, and Bare-ground has expanded into parts of Shrubland and Thicket. Overall vegetation productivity increased over time, with the greatest increases in Thicket and Grazing lawn and the lowest in Shrubland and Bare-ground. Changes in rainfall, fire and stocking rates were all significant predictors of the observed changes in vegetation productivity, but rainfall had the strongest effect. This research highlights some of the complex responses that arise in semi-arid vegetation when domestic livestock production is replaced by game ranching, and points towards key issues that can be addressed by management.
英文关键词	land-use change remote sensing semi-arid rangeland vegetation index wildlife impact
类型	Article
语种	英语
国家	South Africa ; Sweden
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000487305600001
WOS关键词	LEAF-AREA INDEX ; BUSH ENCROACHMENT ; GRAZING LAWNS ; EASTERN CAPE ; KAROO ; COVER ; DEGRADATION ; RAINFALL ; IMPACTS ; NDVI
WOS类目	Ecology ; Environmental Sciences
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/2XILL650/213929
作者单位	1.Univ Cape Town, DST NRF Ctr Excellence, FitzPatrick Inst African Ornithol, Cape Town, South Africa; 2.Swedish Univ Agr Sci, Dept Wildlife Fish & Environm Studies, Umea, Sweden; 3.Univ Cape Town, Dept Biol Sci, Plant Conservat Unit, Cape Town, South Africa; 4.Univ Witwatersrand, Sch Anim Plant & Environm Sci, Johannesburg, South Africa
推荐引用方式 GB/T 7714	Hyvarinen, Olli,Hoffman, M. Timm,Reynolds, Chevonne. Vegetation dynamics in the face of a major land-use change: a 30-year case study from semi-arid South Africa[J],2019,36(3):141-150.
APA	Hyvarinen, Olli,Hoffman, M. Timm,&Reynolds, Chevonne.(2019).Vegetation dynamics in the face of a major land-use change: a 30-year case study from semi-arid South Africa.AFRICAN JOURNAL OF RANGE & FORAGE SCIENCE,36(3),141-150.
MLA	Hyvarinen, Olli,et al."Vegetation dynamics in the face of a major land-use change: a 30-year case study from semi-arid South Africa".AFRICAN JOURNAL OF RANGE & FORAGE SCIENCE 36.3(2019):141-150.