干旱区生态环境知识资源中心(Arid): The role of land use and land cover changes in triggering soil losses in the SE Alentejo, Portugal

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DOI	10.1002/ldr.4889
	The role of land use and land cover changes in triggering soil losses in the SE Alentejo, Portugal
	Roxo, Maria Jose; Cerqueira, Henrique Morgado; Calvo-Cases, Adolfo
通讯作者	Cerqueira, HM
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2023
卷号	34 期号:18 页码:5954-5968
英文摘要	This study analyses and interprets the effects of historical and contemporary land use and cover changes (LULC) on soil erosion in the Serra de Mertola region, Portugal, by using the 58 years of measurements in 8 x 22 m erosion plots at the Vale Formoso Erosion Centre and employing methodologies including field observations, aerial image analysis and Landsat NDVI trend assessment. Land cover and management changes, influenced by agricultural policies since the early 20th century, notably during the wheat campaigns of the fascist regime, have exacerbated soil erosion, with the highest rates observed in vertical fallow (964 g m(-2) yr(-1)), wheat (90 g m(-2) yr(-1)) and horizontal fallow (66 g m(-2) yr(-1)). These practices continue to be somewhat relevant today, as cereal production is still being subsidized. However, Quercus, Pines-introduced since agrarian reforms and Portugal's entry into the common agricultural policy (CAP)-and spontaneous vegetation from CAP's set-aside policies and recent land abandonment trends show lower erosion rates, underlining vegetation's role in erosion protection. Using NDVI trend analysis, we distinguish between natural fluctuations and land cover changes impacts. Understanding these changes and how they relate to slope and valley floor dynamics, such as incision, aggradation or stabilization, is crucial for recognizing human influences on the earth's surface. Our research highlights sustainable land management's role in reducing soil erosion in desertification-prone areas.
英文关键词	common agricultural policy erosion processes land management land use change Mediterranean
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001063769100001
WOS关键词	EROSION ; ABANDONMENT ; RUNOFF ; IMPACT ; CONSEQUENCES ; ECOSYSTEM ; PATTERNS ; EUROPE ; AREAS ; SPAIN
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397770
推荐引用方式 GB/T 7714	Roxo, Maria Jose,Cerqueira, Henrique Morgado,Calvo-Cases, Adolfo. The role of land use and land cover changes in triggering soil losses in the SE Alentejo, Portugal[J],2023,34(18):5954-5968.
APA	Roxo, Maria Jose,Cerqueira, Henrique Morgado,&Calvo-Cases, Adolfo.(2023).The role of land use and land cover changes in triggering soil losses in the SE Alentejo, Portugal.LAND DEGRADATION & DEVELOPMENT,34(18),5954-5968.
MLA	Roxo, Maria Jose,et al."The role of land use and land cover changes in triggering soil losses in the SE Alentejo, Portugal".LAND DEGRADATION & DEVELOPMENT 34.18(2023):5954-5968.