Arid
DOI10.2989/10220119.2018.1516237
Long-term changes in land use, land cover and vegetation in the Karoo drylands of South Africa: implications for degradation monitoring()
Hoffman, M. Timm1; Skowno, Andrew2; Bell, Wesley1; Mashele, Samukele1
通讯作者Hoffman, M. Timm
来源期刊AFRICAN JOURNAL OF RANGE & FORAGE SCIENCE
ISSN1022-0119
EISSN1727-9380
出版年2018
卷号35期号:3-4页码:209-221
英文摘要

We used several large data sets at a range of temporal and spatial scales to document the land-use/land-cover change (LULCC) dynamics of the semi-arid Succulent Karoo and Nama-Karoo biomes of South Africa. More than 95% of the Karoo is comprised of land classified as Natural, which has been relatively stable since 1990. Over the last 100 years cultivation, as well as the number of domestic livestock, has declined significantly in both biomes. Protected areas have increased since 1980 to comprise nearly 8% of the Succulent Karoo biome, although they only cover 1.6% of the Nama-Karoo biome. There has been a significant recent increase in renewable energy installation applications, which cover 4% of the Karoo drylands. The trend in vegetation productivity (NDVI; 1982-2015) is unchanged over 90% of both biomes, while nearly 10% of the Karoo has shown a significant increase in NDVI trend. An analysis of repeat photographs shows that vegetation cover has either remained unchanged or has increased at most locations. Although the Karoo drylands appear less degraded than they were in the mid-twentieth century, on-going monitoring at different temporal and spatial scales is essential to evaluate the future impact of LULCC on these semi-arid environments.


英文关键词desertification land cover change NDVI remote sensing repeat photography
类型Article
语种英语
国家South Africa
收录类别SCI-E
WOS记录号WOS:000451149600006
WOS关键词SUCCULENT KAROO ; DESERTIFICATION ; CONSERVATION ; RANGELANDS ; LIVESTOCK ; IMPACT
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/2XILL650/207292
作者单位1.Univ Cape Town, Dept Biol Sci, Cape Town, South Africa;
2.South African Natl Biodivers Inst, Cape Town, South Africa
推荐引用方式
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Hoffman, M. Timm,Skowno, Andrew,Bell, Wesley,et al. Long-term changes in land use, land cover and vegetation in the Karoo drylands of South Africa: implications for degradation monitoring()[J],2018,35(3-4):209-221.
APA Hoffman, M. Timm,Skowno, Andrew,Bell, Wesley,&Mashele, Samukele.(2018).Long-term changes in land use, land cover and vegetation in the Karoo drylands of South Africa: implications for degradation monitoring().AFRICAN JOURNAL OF RANGE & FORAGE SCIENCE,35(3-4),209-221.
MLA Hoffman, M. Timm,et al."Long-term changes in land use, land cover and vegetation in the Karoo drylands of South Africa: implications for degradation monitoring()".AFRICAN JOURNAL OF RANGE & FORAGE SCIENCE 35.3-4(2018):209-221.
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