RUDN Journal of Ecology and Life SafetyRUDN Journal of Ecology and Life SafetyВестник Российского университета дружбы народов. Серия: Экология и безопасность жизнедеятельности2313-23102408-8919Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)12495ArticlesСтатьиResearch ArticleReconstruction of the paleoecological changes in the Western Sahara during the early holocene periodРеконструкция палеоэкологических изменений в Западной Сахаре в период раннего голоценаLebedevaA VЛебедеваАнастасия ВячеславовнаEcological DepartmentЭкологический факультетlav1990g@mail.ruPeoples’ Friendship University of RussiaРоссийский университет дружбы народов150120151NO1 (2015)№1 (2015)13213612092016Copyright ©; 2015, Lebedeva A.V.Copyright ©; 2015, Лебедева А.В.2015Lebedeva A.V.Лебедева А.В.https://creativecommons.org/licenses/by-nc/4.0https://journals.rudn.ru/ecology/article/view/12495The objective of this study is to understand the past environmental changes in the Western Sahara, Morocco, from fossil pollen assemblages. In order to reconstruct the climate and vegetation in this area during the late Holocene, a coring of 450 cm was collected from Sebkha Imlily. The fossil record covers the last 4500 years. The pollen content of 23 samples was extracted from this coring and analyzed using a light microscopy. Palynological data allowed to estimate the presence and abundance of different plant taxa such as Artemisia and Chenopodiaceae. In order to use these two taxa, which are strongly present in the pollen data, to reconstruct past changes was used the following ratio: Artemisia / ( Chenopodiaceae + Artemisia ), which allowed to assess the variability of aridity in the Sebkha. This ratio translates the degree of local aridity which allowed to state that there are significant changes in the available moisture in the study site and significant environmental changes during the Holocene. These changes suggest that the late Holocene climate in the Sahara was probably quite unstable.На основе палинологического анализа разрезов рыхлых отложений в регионе Себкха Имлили (Западная Сахара) рассмотрены ландшафтно-климатические изменения региона в голоцене. Представлены первые палеоэкологические данные Западной Сахары, позволяющие понять историю развития экосистемданной территории, на основе доминирующих видов растительности выделены более влажные и более сухие периоды.PaleoclimateWestern Saharapollenclimate changesspore-pollen methodпалеоклиматЗападная Сахарапыльцаклиматические измененияспорово-пыльцевой метод1.DeMenocal P. Abrupt onset and termination of the African Humid Period: rapid climate responses to gradual insolation forcing // Quaternary Science Reviews. - 2000. - P. 347-361.2.El-Moslimany A.P. Ecological significance of common nonarboreal pollen: examples from drylands of the Middle East. - 1990. - P. 343-350.3.Kröpelin S., Kuper R. Climate-Controlled Holocene Occupation in the Sahara: Motor of Africa’s Evolution. - 2006. - P. 803-807.4.Kröpelin S. Climate-Driven Ecosystem Succession in the Sahara: The Past 6000 Years. - 2008. - P. 765-768.5.Lézine A.-M. Histoire climatique des déserts d’Afrique et d’Arabie. - 2009. - P. 4-11.6.Mayewski P.A. Holocene climate variability. Quaternary Research. - 2004. - P. 243-255.7.Pachauri. Bilan 2007 des changements climatiques // GIEC. - 2007. - P. 1-103.8.Punt W. Glossary of pollen and spore terminology. - 2006. - P. 1-81.9.Qninba A. Sebkhet Imlily, une zone humide originale dans le Sudmarocain // Bull. Inst. Sci., Rabat. Section Sciences de la Vie. - 2009. - P. 51-55.10.Yan Zhao. Sensitive response of desert vegetation to moisture change based on a near-annual resolution pollen record from Gahai Lake in the Qaidam Basin, northwest China. - 2008. - P. 107-114.