干旱区生态环境知识资源中心(Arid): Agricultural productivity in relation to climate and cropland management in West Africa

Arid

DOI	10.1038/s41598-020-59943-y
	Agricultural productivity in relation to climate and cropland management in West Africa
	Mechiche-Alami, Altaaf; Abdi, Abdulhakim M.
通讯作者	Mechiche-Alami, A
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2020
卷号	10 期号:1
英文摘要	The climate of West Africa is expected to become more arid due to increased temperature and uncertain rainfall regimes, while its population is expected to grow faster than the rest of the world. As such, increased demand for food will likely coincide with declines in agricultural production in a region where severe undernutrition already occurs. Here, we attempt to discriminate between the impacts of climate and other factors (e.g. land management/degradation) on crop production across West Africa using satellite remote sensing. We identify trends in the land surface phenology and climate of West African croplands between 2000 and 2018. Using the combination of a an attribution framework and residual trend anlaysis, we discriminate between climate and other impacts on crop productivity. The combined effect of rainfall, land surface temperature and solar radiation explains approximately 40% of the variation in cropland productivity over West Africa at the 95% significance level. The largest proportions of croplands with greening trends were observed in Mali, Niger and Burkina Faso, and the largest proportions with browning trends were in Nigeria, The Gambia and Benin. Climate was responsible for 52% of the greening trends and 25% of the browning trends. Within the other driving factors, changes in phenology explained 18% of the greening and 37% of the browning trends across the region, the use of inputs and irrigation explained 30% of the greening trends and land degradation 38% of the browning trends. These findings have implications for adaptation policies as we map out areas in need of improved land management practices and those where it has proven to be successful.
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000563227900004
WOS关键词	LAND-SURFACE PHENOLOGY ; GROSS PRIMARY PRODUCTIVITY ; VEGETATION PRODUCTIVITY ; PLANT PHENOLOGY ; TIME-SERIES ; HOT-SPOTS ; DEGRADATION ; VARIABILITY ; TRENDS ; RAINFALL
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325849
作者单位	[Mechiche-Alami, Altaaf] Lund Univ, Dept Phys Geog & Ecosyst Sci, SE-22362 Lund, Sweden; [Abdi, Abdulhakim M.] Lund Univ, Ctr Environm & Climate Res, SE-22362 Lund, Sweden
推荐引用方式 GB/T 7714	Mechiche-Alami, Altaaf,Abdi, Abdulhakim M.. Agricultural productivity in relation to climate and cropland management in West Africa[J],2020,10(1).
APA	Mechiche-Alami, Altaaf,&Abdi, Abdulhakim M..(2020).Agricultural productivity in relation to climate and cropland management in West Africa.SCIENTIFIC REPORTS,10(1).
MLA	Mechiche-Alami, Altaaf,et al."Agricultural productivity in relation to climate and cropland management in West Africa".SCIENTIFIC REPORTS 10.1(2020).