Arid Dune Ecosystems: The Nizzana Sands in the Negev Desert by Siegmar-W. Breckle, Aaron Yair, Maik Veste

By Siegmar-W. Breckle, Aaron Yair, Maik Veste

Sand dune dynamics performs a key function in lots of arid deserts. This quantity presents a synthesis of a particular sand dune atmosphere, the Nizzana web site within the Negev wilderness. Describing its weather and geophysical/geochemical homes of soils, geological background, wildlife, and past/present land-use styles, it elucidates ecological and geomorphological procedures and their interrelations, in response to long term tracking, in situ experiments and satellite tv for pc imagery. specific cognizance is attracted to the effect of the topsoil organic crust in controlling water availability at local/regional scales. The interdisciplinary process followed as a consequence examine bargains an outstanding instance of a hugely advanced and dynamic method, that could simply be utilized to different sandy ecosystems. it is a necessary resource of knowledge for soil ecologists and microbiologists, conservation biologists, wasteland ecologists and geographers, geomorphologists, soil scientists and climatologists, academics, coverage makers and others drawn to deserts and desertification.

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The crescentic slip faces are stabilized today but their form is very obvious, which indicates that activity was very recent (Figs. 14). This dune morphology is different from the morphology of the linear dunes found at Sde Hallamish and Shunra, where the interdunes are not covered with any bedform. As we postulated above, the Haluza-Agur dunefield probably marks the youngest and thickest invasion of sand into the Negev. Fig. 13 Stabilized slip face in the interdune of two linear dunes at Haluza Sands 40 H.

11). Seif dunes are the only type of linear dune shaped under bidirectional wind regimes impacting the dunes obliquely, the dunes extending parallel to the resultant direction of the wind (Tsoar 1983). Seif dunes are known to run parallel for scores of kilometres but they do not show any tendency for two adjacent dunes to converge into a single dune, as is common with VLDs. Seif dunes, the only elongating dunes devoid of vegetation, have a complicated mechanism of sand transport and deposition.

J Arid Land Studies 16(3):139–147 Yair A, Lavee H, Greitzer N (1997) Spatial and temporal variability of water percolation and movement in a system of longitudinal dunes, Western Negev, Israel. Hydrol Processes 11:43–58 Chapter 3 Formation and Geomorphology of the North-Western Negev Sand Dunes H. G. Blumberg, and R. 1 The Sinai-Negev Dunefield The coastal plain of the northern Sinai Peninsula is a structural depression that borders several anticline mountains in the south. This coastal plain is covered by a dunefield in a wide area of 20–80 km from north to south, and for 260 km from the Nile Delta in the west into the northern Negev Desert, where it terminates south of Beer Sheva (Fig.

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