气候变化领域集成服务门户(CCPortal): Impact of climate and demographic changes on the vegetation of the M'goun Geopark UNESCO of Morocco (1984-2021)

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DOI	10.14198/INGEO.25433
	Impact of climate and demographic changes on the vegetation of the M'goun Geopark UNESCO of Morocco (1984-2021)
	Youssef, Gharnit; Abdelaziz, Moujane; Aboubakre, Outourakht; Hasib, Aziz; Boulli, Abdelali
发表日期	2024
ISSN	0213-4691
EISSN	1989-9890
结束页码	81
期号	81
英文摘要	The primary goal of this study is to identify changes in the vegetation cover of the geopark M'goun region of Morocco, as a sample area to track the Moroccan vegetation status, and the crucial factors that influenced its evolution between 1984 and 2021. The NDVI (Normalized Difference Vegetation Index) method has been used, combined with supervised classification manipulated with the Google Earth Engine and through statistical analysis using R, together with field trips and Google Earth records for supervised classification. The percentage of vegetation density, made up of oak groves, Matorrals, red juniper, and thuja, in addition to a highly biodiverse cover, displays a declining trend. Medium-cover vegetation decreased by 29.5%, dense vegetation decreased considerably by 70.9%, and low-cover vegetation saw a minimal decline of 0.02%. As a result, dense and medium vegetation are being replaced by bare lands or poor-quality cover formed by sparse plants and solitary trees. In addition, precipitation increased slightly, showing an irregular trend, with average minimum and maximum temperatures rising by +1.7 degrees C and +1.4 degrees C, respectively. Furthermore, the population increased by 84.47%. Statistical analysis showed that the most important parameters affecting medium and dense vegetation cover are temperatures (Tmin and Tmax) and population density, as evidenced by the strong correlation between them. In contrast, sparse vegetation cover showed less correlation due to its heterogeneity. However, precipitation played a minimal role in vegetation evolution. Change detection maps revealed a significant negative impact on vegetation cover. This degradation was localized in the southern part of the area of study, where, according to the demographic density map, the majority of the population resides. Deforestation continues due to the lifestyle and economic activities of the local population. These factors, combined with climate change, are exerting large-scale pressure on the forest throughout the geopark.
英文关键词	vegetation cover; change detection; climate change; population; NDVI; supervised classification
语种	英语
WOS研究方向	Geography
WOS类目	Geography
WOS记录号	WOS:001163271400011
来源期刊	INVESTIGACIONES GEOGRAFICAS-SPAIN
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/290417
作者单位	Sultan Moulay Slimane University of Beni Mellal
推荐引用方式 GB/T 7714	Youssef, Gharnit,Abdelaziz, Moujane,Aboubakre, Outourakht,et al. Impact of climate and demographic changes on the vegetation of the M'goun Geopark UNESCO of Morocco (1984-2021)[J],2024(81).
APA	Youssef, Gharnit,Abdelaziz, Moujane,Aboubakre, Outourakht,Hasib, Aziz,&Boulli, Abdelali.(2024).Impact of climate and demographic changes on the vegetation of the M'goun Geopark UNESCO of Morocco (1984-2021).INVESTIGACIONES GEOGRAFICAS-SPAIN(81).
MLA	Youssef, Gharnit,et al."Impact of climate and demographic changes on the vegetation of the M'goun Geopark UNESCO of Morocco (1984-2021)".INVESTIGACIONES GEOGRAFICAS-SPAIN .81(2024).