干旱区生态环境知识资源中心(Arid): Long-term trends and variability in the dryland microclimate of the Northern Cape Province, South Africa

Arid

DOI	10.1007/s00704-018-2642-y
	Long-term trends and variability in the dryland microclimate of the Northern Cape Province, South Africa
	Strydom, S.; Savage, M. J.; Clulow, A. D.
通讯作者	Strydom, S.
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
ISSN	0177-798X
EISSN	1434-4483
出版年	2019
卷号	137 期号:1-2 页码:963-975
英文摘要	A wealth of information on the extent and severity of global climate change has been produced through research over the past few decades. Global trends of the climate should be observable at a regional and local level, yet certain areas remain under-represented in both national and international research. This study presents an investigation into the microclimatic trends of the semi-arid/arid environment of the Northern Cape Province, South Africa. Long-term (1982-2016) historical daily meteorological data were analyzed using the RClimDex software package as well as other multi-temporal regression analyses. Results indicate an overall warming of the study sites, with rates of change varying between 1 and 4 degrees C century(-1). The overall increase in annual average air temperature observed at the three sites is linked to daytime warming trends. Total annual rainfall, as well as atmospheric water vapor, was found to be decreasing at significant rates across the sites, with serious implications for livestock agriculture in the region. Model outputs of normalized difference vegetation index (NDVI), 0-100-mm soil water and the reflection coefficient, indicate that observed changes in the microclimate are not a consequence of terrestrial factors. The results of the study indicate that the microclimate of the dryland Northern Cape environment is changing but at rates that are different to global and continental estimates. The study highlights the need for local climate change investigations, and also identifies limitations in using only ground-based datasets.
类型	Article
语种	英语
国家	South Africa
收录类别	SCI-E
WOS记录号	WOS:000475737500065
WOS关键词	CLIMATE-CHANGE ; SEMIARID CLIMATE ; AGRICULTURE ; ADAPTATION ; IMPACT ; KAROO
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219084
作者单位	Univ KwaZulu Natal, Sch Agr Earth & Environm Sci, Soil Plant Atmosphere Continuum Res Unit, Agrometeorol Discipline, Pietermaritzburg, South Africa
推荐引用方式 GB/T 7714	Strydom, S.,Savage, M. J.,Clulow, A. D.. Long-term trends and variability in the dryland microclimate of the Northern Cape Province, South Africa[J],2019,137(1-2):963-975.
APA	Strydom, S.,Savage, M. J.,&Clulow, A. D..(2019).Long-term trends and variability in the dryland microclimate of the Northern Cape Province, South Africa.THEORETICAL AND APPLIED CLIMATOLOGY,137(1-2),963-975.
MLA	Strydom, S.,et al."Long-term trends and variability in the dryland microclimate of the Northern Cape Province, South Africa".THEORETICAL AND APPLIED CLIMATOLOGY 137.1-2(2019):963-975.