Forest Plantations on the Drained Bottom of the Aral Sea
Journal Title: Lesnoy Zhurnal (Russian Forestry Journal) - Year 2020, Vol 9, Issue 2
Abstract
Information is provided on the current state of the drained bottom of the Aral Sea. It is noted that the Amu Darya and Syr Darya rivers dumped 55–60 km3 of water into the sea until 1966. The waters of Syr Darya ceased to flow into the open sea in 1973, and Amu Darya in 1966. This is largely responsible for the area of the drained bottom, which is about 6 mln ha today. It is necessary to carry out forest reclamation works in order to consolidate the drained bottom and prevent the occurrence of deflationary processes. The research purpose was to identify the types of bottom sediments according to their degree of forest suitability taking into account their mechanical and chemical composition and select woody-shrub plants for the reclamation development of the lands. The studies were carried out from 2006 till 2019. Soil was distinguished into 3 categories taking into account its granulometric texture: the first category is sandy and sandy loam soils; the second is shifting sands, and the third is salt wastelands. The role of forest plantations in reduction of deflationary processes has been established: the wind speed decreases by 20.5 % in the annual saxaul-saltwort plantation, by 34.6 % in the two-year plantation, and by 87.4 % in the five-year plantation. Natural grassland vegetation appears under the canopy of 4–5-year forest plantations, which results in a sharp decrease in wind speed and, thus, termination of soil deflation. It was determined that forest plantations reduce the blowing of salt, dust and sand and thereby contribute to the ecological recovery of the territory. The removal of chemical elements (such as chlorine, sulfur, calcium, magnesium and sodium) from the soil under the protection of forest plantations is significantly below than from an open surface. The research results are widely used by organizations involved in afforestation of the drained bottom of the Aral Sea, such as regional floristries of the Republic of Uzbekistan, which have already created about 400 ths ha of forest plantations. As a result conducting large-scale forestry and forest reclamation on the drained bottom of the Aral Sea will allow to consolidate it and thereby minimize the occurrence of deflationary processes, in other words will make it possible to improve the environmental situation in the Central Asia region.
Authors and Affiliations
N. J. Bakirov, A. Kh. Khamzaev, Z. B. Novitskiy
Keywords
Related Articles
- EP ID EP683263
- DOI 10.37482/0536-1036-2020-2-51-59
- Views 220
- Downloads 0
Differentiation of Plus Trees of Scots Pine by Xylem Conditions
 An essential stage in the establishment of seed orchards is the formation of an optimal composition, avoiding inbreeding depression in the produced seed material, which develops as a result of crossbreeding between clo...
Improving the Performance of Wood-Metal Slide Bearings for Forestry Machinery
The performance of slide bearings in forestry machines and equipment is largely determined by the load-carrying capacity and antifriction qualities that depend on the bearing capacity of the sleeve (insert) material, the...
Age Dynamics of Normal Gray Alder Stands in the Taiga Zone of the North-East of the European Part of Russia
In order to organize, plan and conduct forest management on a scientific basis in stands with predominance and participation of gray alder (Alnus incana (L.) Moench), formed in the conditions of the taiga zone, reliable...
The Study of PLA-Based Wood-Polymer Composite Properties
The paper presents the study of wood-polymer filament for fused filament fabrication (FDM) printing. 3D printing is used in the manufacture of products of a complex shape, which means it can be an integral part of the pr...
Seed Regeneration of Buxus colchica Pojark. under the Conditions of Epiphytotics of Boxwood Forests
In response to expansion of Cydalima perspectalis Walker, 1859, mass scale drying of Buxus colchica Pojark. resulted in succession of forest communities of the Western Caucasus in 2014–2017. Changes in illumination of th...