Description
Three themes run through this book, the first is the history of the Nile; the second is the degree to which the present Sudanese landscape reflects the operation of former geological processes; the third is the interaction between man and environment, not always to the benefit of either. A land between two Niles is an interdisciplinary account of the origins and characteristics of the alluvial plains of the lower Blue and White Nile. The contributors have focussed their attention upon this region for several reasons. Although the Gezira plain itself only occupies about one percent of the total area of the Sudan, the high quality long-staple cotton grown there provides nearly two-thirds of the country’s total export revenue.
Table of Contents
1 Alluvium and agriculture in the semi-arid world 2 Quaternary environments in Northern Africa 3 Palaeobotanical speculations and Quaternary environments in the Sudan 4 Geology of the central Sudan 5 Stratigraphy and ground-water geology of the Gezira Plain, central Sudan 6 The plains of the central and southern Sudan 7 Landforms and soils of the Gezira: A Quaternary legacy of the Blue and White Nile rivers 8 The vegetation of the central Sudan 9 Palaeogeography of the Gezira and of the lower Blue and White Nile valleys 10 The integrated Nile
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- 電子書籍
- 陽ちゃんからのそよ風
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- 電子書籍
- 美堂橋さんの優雅な日々。 〈恋とヒミツ…
