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Human impact gradients via anthropogenic pollen indicators:insights gleaned from a case study in the rif mountains(Northern Morocco)

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Journal of Mountain Science 2024年第12期21卷 4223-4235页

作者： Aboubakr BOUTAHAR Paloma Cariñanos GONZALEZ Zouhaire LAMRANI Abderrahmane MERZOUKI Biology Ecologyand Health LaboratoryDepartment of BiologyFaculty of Sciences of TetouanAbdelmalek Essaâdi UniversityTetouan 93002Morocco Department of Botany Faculty of PharmacyUniversity of GranadaGranada 18071Spain Andalusian Institute for Earth System Research(IISTA-CEAMA) University of GranadaGranada 18100Spain Biology Environmentand Sustainable Development LaboratoryENSAbdelmalek Essaadi UniversityTetouan 93000Morocco CANN-MED&BALDIYA CROPS SARL Tangier 90010Morocco

Understanding the relationship between modern pollen and vegetation is crucial for interpreting fossil pollen records and assessing human impact on the environment,both of which are essential for effective environmental management *** numerous studies on fossil pollen records in the rif landscape,research specifically focusing on modern pollen and its implications for understanding human impact on the natural landscape is notably *** paper presents novel anthropogenic pollen indicators for the rif mountains and seeks to evaluate the gradients of human impact on the southern Mediterranean *** employed a combination of modern pollen analysis,vegetation survey,and ordination techniques,incorporating various environmental and land-use *** correspondence analysis(CCA)allowed us to evaluate the relationships between pollen types and environmental variables,helping us identify key anthropogenic pollen indicators associated with land use and human activities:Poaceae,Cannabist,Olea-t,and Asteraceae for cultivation;Brassicaceae,Genista-t,Poaceae,Asteraceae and Plantago-t,for grazing;Apiaceae,Urtica-t and Genista-t for slashing and ***,an anthropogenic index score(AIS)was calculated for each sampled *** analysis(CA)was then used to correlate each specific pollen type with levels of human impact as follows(a)low(e.g.,Cedrus atlantica-t,Quercus canariensis-t),(b)moderate(e.g.,Erica-t,Arbutus unedo-t,Eucalyptus-t),and(c)high(e.g.,Cannabis-t,Brassicaceae,Olea-t,Nicotiana-t).This paper enhances our comprehension of land-use dynamics and impact levels,providing essential insights for evaluating anthropogenic impact trends and human-induced changes in the rif mountains landscape.

关键词： Modern Pollen analysis rif mountains Pollen indicators Human impact Northern Morocco Anthropogenic index score

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