By S-W. Breckle, W. Wucherer (auth.), Siegmar-W. Breckle, Walter Wucherer, Liliya A. Dimeyeva, Nathalia P. Ogar (eds.)
Having been the fourth biggest lake at the globe approximately 50 years in the past, at the present time the Aral Sea now not exists. Human actions triggered its desiccation and the formation of a massive new wasteland, the Aralkum, which are considered as one of many maximum ecological catastrophes and - while - the biggest basic succession test of mankind.
This quantity brings jointly the result of overseas and interdisciplinary long term experiences at the new barren region environment and is split into 4 major sections. the 1st part offers an summary of the actual features of the world and covers geological, pedological, geomorphological and climatological facets and their dynamics, specifically dust-storm dynamics. the second one makes a speciality of the biotic elements and highlights the spatial and temporal styles of the natural world. within the 3rd part reports and tasks aiming to strive against desertification through phytomelioration and to increase innovations for the conservation of biodiversity are offered. The publication is rounded off with a piece supplying a synthesis and conclusions.
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Additional resources for Aralkum - a Man-Made Desert: The Desiccated Floor of the Aral Sea (Central Asia)
For a short time the route of the Amu Darya was along the Uzboi. The water level rose to 54–55 m asl. Again this water level can be seen geomorphologically in the relief. ” An increasing oasis culture occurred again during the seventh and eighth centuries AD. But only the twelfth and thirteenth centuries AD brought a prosperous and widespread oasis agriculture with sophisticated irrigation. At that time the Amu Darya completely discharged to the Aral Sea. The water level rose to about 54–55 m asl, also at Lake Sarykamysh (Kes’ et al.
They can be traced along the coastlines of the Sarykamysh and the Aral Sea. At the flat eastern coast they are almost not visible as relief lines. This transgression might have been rather short, which is unlikely, or it was a short phase earlier (before 20,000 years ago). During the early and middle Holocene, the Amu Darya discharged most of the time to the west, via the Sarykamysh basin and the Uzboi towards the Caspian Sea. The Palaeolithic and archaeological data prove the existence of a large Lake Sarykamysh and the discharge via the Uzboi during the fourth and the third millennia BC (Kes’ 1969; Kes’ et al.
The geological history of the Aral Sea exhibits three main stages: 1. The phase of sea development. This comprises the period from the middle of the Pliocene until the beginning of the Pleistocene. 2). The limits of those water bodies are still uncertain. The loamysandy deposits of that phase contain shells from Dreissena, Adacna and other species. The water level was about 60 m asl. The deep denudation of the Apsheron deposits indicates that at the end of this phase a long continental phase prevailed.