干旱区生态环境知识资源中心(Arid): Multi-temporal Landsat imagery and MSAVI index for monitoring rangeland degradation in arid ecosystem, case study of Biskra (southeast Algeria)

Arid

DOI	10.1007/s10661-023-11191-z
	Multi-temporal Landsat imagery and MSAVI index for monitoring rangeland degradation in arid ecosystem, case study of Biskra (southeast Algeria)
	Belhadj, Amina; Boulghobra, Nouar; Allache, Fatma Demnati
通讯作者	Belhadj, A
来源期刊	ENVIRONMENTAL MONITORING AND ASSESSMENT
ISSN	0167-6369
EISSN	1573-2959
出版年	2023
卷号	195 期号:6
英文摘要	The Algerian Saharan rangelands are an arid ecosystem characterized by limited soil, water, and vegetation resources, which make it very susceptible to degradation. This research focuses on the diachronic assessment and multi-temporal mapping of the degradation of steppe vegetation in the south of Biskra during the period 1987-2019, using remote sensing data (MSAVI index), for extracting spatiotemporal data to monitor the rangeland vegetation dynamics. We examined demographic evolution, number of livestock, and land use from quantitative data. The results show that during this period, the landscape of the region changed considerably. The area of rangelands decreased from 19,939 ha (1987) to 3605 ha (2019), where 58% of the pre-existing vegetation was transformed into bare soil. This study confirmed that the rangeland vegetation health is closely related to climate, and its degradation is mainly due to the recurrence, duration, severity, and magnitude of drought events. Manmade activities were also a determinant factor of long-term degradation of the rangeland, such as the expansion of new land development areas that increased from 3754 ha (1987) to 24,410 ha (2019). This trend was found throughout the region, including predominantly pastoral regions such as Oumache and El Haouch, leading to overgrazing with a loss of about 2% of vegetation cover. All these factors have led to a severe and continuous degradation of pastoral resources in a vulnerable environment. The preservation of these limited resources requires appropriate management of the ecosystem and a rational exploitation of its vegetation, soil, and water resources.
英文关键词	Rangeland degradation Landsat MSAVI Arid SPI
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000985790000001
WOS关键词	VEGETATION ; DESERTIFICATION ; URBANIZATION ; BIODIVERSITY ; IMPACTS ; DROUGHT
WOS类目	Environmental Sciences
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/2XILL650/396177
推荐引用方式 GB/T 7714	Belhadj, Amina,Boulghobra, Nouar,Allache, Fatma Demnati. Multi-temporal Landsat imagery and MSAVI index for monitoring rangeland degradation in arid ecosystem, case study of Biskra (southeast Algeria)[J],2023,195(6).
APA	Belhadj, Amina,Boulghobra, Nouar,&Allache, Fatma Demnati.(2023).Multi-temporal Landsat imagery and MSAVI index for monitoring rangeland degradation in arid ecosystem, case study of Biskra (southeast Algeria).ENVIRONMENTAL MONITORING AND ASSESSMENT,195(6).
MLA	Belhadj, Amina,et al."Multi-temporal Landsat imagery and MSAVI index for monitoring rangeland degradation in arid ecosystem, case study of Biskra (southeast Algeria)".ENVIRONMENTAL MONITORING AND ASSESSMENT 195.6(2023).