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African palaeoenvironments and geomorphic landscape by Jürgen Runge

By Jürgen Runge

This 30st jubilee quantity (2010) of "Palaeoecology of Africa" appears to be like again and displays the "state of the paintings" of what's really recognized on former African climates and ecosystems within the structure of evaluation articles authored by way of experts within the box. New study articles on weather and surroundings dynamics in addition to utilized issues on geomorphic dangers and destiny environmental tendencies in Africa are included.
This ebook can be of curiosity to all keen on ecosystems dynamics, tropical forests, savannahs, deserts and similar improvement difficulties of 3rd international international locations, specially ecologists, botanists, earth scientists (e.g. Quaternary and up to date weather change), local planners. it's going to even be worthy for complex undergraduates and postgraduates as a reference for evaluation and evaluate articles in addition to a resource of data for brand spanking new unique manuscripts and reports at the cutting-edge of long-term and Quaternary and Holocene panorama evolution esp. in subsaharan Africa. Palaeobotanists, Palynologists and Quaternarists will both locate this version valuable for his or her work.

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The eight other months of the year give only occasionally light ‘belg’ rains in some parts of the basin during the months March to May. Nyssen et al. (2005) have shown that the short duration high intensity rain storms in Hagere Selam are among the world’s most energetic ones because of the big rain drop size. According to the International Convention to Combat Desertification (UNEP, 1994), the region should be considered as being affected by desertification because the proportion of the annual precipitation over the potential evapotranspiration is below 0,65.

Memorie di Scienze Geologiche, 49, pp. 95–116. , Coltorti, M. , 1997, Phases of soil erosion during the Holocene in the Highlands of Western Tigray (Northern Ethiopia): a preliminary report. , (Napoli: Instituto Universitario Orientale), pp. 30–48. , 1981, Rise and fall of Axum, Ethiopia: a geo-archaeological interpretation. American Antiquity, 46, pp. 471–495. L. , 1972, Radio carbon dating of East African lake levels. Science, 175, pp. 1069–1076. , Ferrari, G. , 2009, Dynamics and driving factors of late Holocene gullying in the Main Ethiopian Rift (MER).

2009). Because they create high sediment loads and because their occurrence depends mostly on important oscillations in the water tables, landslides are hydrologically incompatible with tufa dam growth. This is the reason why the landslide activity in the Hagere Selam region is historically placed from the start of tufa dam breakdown up to now. , 2008) show the imminent risk of landsliding today, which suggests that water table surges at present might be still of the same magnitude as at the time of the start of tufa dam destruction.

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