Titlebook: Geo-trekking in Ethiopia’s Tropical Mountains; The Dogu’a Tembien D Jan Nyssen,Miro Jacob,Amaury Frankl Book 2019 Springer Nature Switzerla

MINT

胆汁

Evidence of the ‘Snowball Earth’ and Other Ancient Glaciations from the Border Areas of the Dogu’a Tto contain glaciers, although snow does occasionally fall on the summits of the Simien Mountains, about 100 km to the west of the Dogu’a Tembien district, as well as in other high mountain regions of Ethiopia. Very few mountains in Africa are currently glaciated and none of them in Ethiopia.

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Limestone, Karst and Tufa Dams in the Western Part of the Mekelle Outliergu’a Tembien and the wider western part of the Mekelle Outlier (Chap. .). Hence the landscape is characterised by the occurrence of various karst landforms including caves, speleothems, karren or lapiez, and a large number of relict tufa dams.

简洁

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腐败

Planation Surfacesnd deeply incised river canyons, but also a number of conspicuous low-relief plains and flat-topped hills known locally as ., which give the landscape a stepped appearance. These landforms and landscapes result from a geological history that has extended from the latter part of the Precambrian, some

四牛在弯曲

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索赔

The Giba, Tanqwa and Tsaliet Rivers in the Headwaters of the Tekezze Basinivers and their tributaries have cut deep gorges and shaped the landscape. Whereas Ethiopia is well endowed with potential water resources, which are estimated to be around 110 billion m. per year, these are unequally distributed over the country. Very little of the enormous water resource has been

Arb853

Forest and Woodland Vegetation in the Highlands of Dogu’a Tembienrated during the past decades in exclosures (see Chap. .), but semi-natural forest vegetation remains largely restricted to small, isolated patches. These patches are most often church yards and other sacred sites. In this chapter, the historical forest vegetation of the Ethiopian highlands and how