干旱区生态环境知识资源中心(Arid): Spatial and Temporal Analysis of Water Resources in the Olive-Growing Areas of Extremadura, Southwestern Spain

Arid

DOI	10.3390/land13081294
	Spatial and Temporal Analysis of Water Resources in the Olive-Growing Areas of Extremadura, Southwestern Spain
	Moral, Francisco J.; Rebollo, Francisco J.; Garcia-Martin, Abelardo; Paniagua, Luis L.; Honorio, Fulgencio
通讯作者	Moral, FJ
来源期刊	LAND
EISSN	2073-445X
出版年	2024
卷号	13 期号:8
英文摘要	The increasing variability of precipitation, higher temperatures, and recurring droughts in the semi-arid regions due to climate change are leading to increased aridity, resulting in scarcer water resources for crops. The present study aimed to analyse the spatial distribution of climate variables related to water resources in the olive-growing areas throughout Extremadura, southwestern Spain. To perform this task, three climate variables were used: the potential evapotranspiration of the crop, the FAO aridity index, and the annual water requirement. Considering data from 58 weather stations located throughout Extremadura and 17 along boundaries with at least a 30-year length (within the 1991-2021 period), each variable was computed at each station. After calculating some descriptive statistics, a multivariate geostatistical (regression-kriging) algorithm, incorporating secondary information on elevation and latitude, was used to accurately map each climate variable. Later, temporal trends and their magnitude were analysed using the Mann-Kendall test and the Sen's estimator, respectively. The highest evapotranspiration and water requirements are located in the southern part of the region, which has large areas dedicated to olive cultivation. In the northern part of the region, there is greater spatial variability in evapotranspiration and, consequently, in water requirements for olive groves due to the more rugged topography. Similarly, the olive-growing areas with the highest aridity are also in the south of Extremadura. In most areas of Extremadura, olive cultivation requires appropriate irrigation for optimal productivity. According to evapotranspiration trends, the water requirements will become greater in the future. However, it is not guaranteed that the water supply will be sufficient in olive-growing areas where aridity is higher and water resources are scarce. The results of this study are very important for evaluating water deficit and water resources in vulnerable olive-growing areas throughout Extremadura.
英文关键词	olive semi-arid lands Extremadura water requirement
类型	Article
语种	英语
收录类别	SSCI
WOS记录号	WOS:001304713200001
WOS关键词	CLIMATE-CHANGE ; EVAPOTRANSPIRATION ; ARIDITY ; REQUIREMENTS ; INDEXES
WOS类目	Environmental Studies
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/2XILL650/404823
推荐引用方式 GB/T 7714	Moral, Francisco J.,Rebollo, Francisco J.,Garcia-Martin, Abelardo,et al. Spatial and Temporal Analysis of Water Resources in the Olive-Growing Areas of Extremadura, Southwestern Spain[J],2024,13(8).
APA	Moral, Francisco J.,Rebollo, Francisco J.,Garcia-Martin, Abelardo,Paniagua, Luis L.,&Honorio, Fulgencio.(2024).Spatial and Temporal Analysis of Water Resources in the Olive-Growing Areas of Extremadura, Southwestern Spain.LAND,13(8).
MLA	Moral, Francisco J.,et al."Spatial and Temporal Analysis of Water Resources in the Olive-Growing Areas of Extremadura, Southwestern Spain".LAND 13.8(2024).