干旱区生态环境知识资源中心(Arid): Regional land degradation assessment for dryland environments: The Namaqualand Hardeveld bioregion of the Succulent Karoo biome as a case-study

Arid

DOI	10.1002/ldr.3900
	Regional land degradation assessment for dryland environments: The Namaqualand Hardeveld bioregion of the Succulent Karoo biome as a case-study
	Bell, Wesley D.; Hoffman, Michael T.; Visser, Vernon
通讯作者	Bell, WD (corresponding author), Univ Cape Town, Plant Conservat Unit, Cape Town, South Africa.
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2021
卷号	32 期号:7 页码:2287-2302
英文摘要	There is growing consensus that land degradation assessments should occur at local to regional scales, as global assessments fail to capture the complexity of land degradation processes, and how they manifest in different social-ecological contexts. We have tested a statistically rigorous method for regional land degradation assessment in drylands, using fuzzy classification theory and techniques, that results in the creation of a habitat condition archetype for the Namaqualand Hardeveld bioregion of the Succulent Karoo biome in South Africa. The methodology initially groups field data into classes based on known indicators of land degradation, before predicting observed field cover with 16 remote sensing variables, derived from both LANDSAT 8 and SENTINEL-2A satellite data. Using fuzzy classification techniques, projections of field cover from the resulting model are combined with variables representing a potential change in cover to produce a map of the habitat condition of the bioregion. Approximately 17% of the bioregion had habitat condition values less than one standard deviation smaller than the mean and could therefore be considered degraded. To provide context, this map is presented with potential drivers of change for the bioregion. The map, and accompanying drivers of change, is ultimately presented in a Google Earth Engine app for easy interpretation and use.
英文关键词	archetypes bioregional land degradation assessment desertification drylands fuzzy classification
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000626851400001
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/2XILL650/351079
作者单位	[Bell, Wesley D.; Hoffman, Michael T.] Univ Cape Town, Plant Conservat Unit, Cape Town, South Africa; [Visser, Vernon] Univ Cape Town, Ctr Stat Ecol Environm & Conservat, Cape Town, South Africa; [Visser, Vernon] Univ Cape Town, African Climate & Dev Initiat, Cape Town, South Africa
推荐引用方式 GB/T 7714	Bell, Wesley D.,Hoffman, Michael T.,Visser, Vernon. Regional land degradation assessment for dryland environments: The Namaqualand Hardeveld bioregion of the Succulent Karoo biome as a case-study[J],2021,32(7):2287-2302.
APA	Bell, Wesley D.,Hoffman, Michael T.,&Visser, Vernon.(2021).Regional land degradation assessment for dryland environments: The Namaqualand Hardeveld bioregion of the Succulent Karoo biome as a case-study.LAND DEGRADATION & DEVELOPMENT,32(7),2287-2302.
MLA	Bell, Wesley D.,et al."Regional land degradation assessment for dryland environments: The Namaqualand Hardeveld bioregion of the Succulent Karoo biome as a case-study".LAND DEGRADATION & DEVELOPMENT 32.7(2021):2287-2302.