Salt balance of promising halophytes Climacoptera lanata L. and Tamarix hispida L. in the Kyzylkum Desert

Abstract

Introduction: The relevance of the investigated problem lies in the problem of improving the condition of degraded and saline soils, on which plants of representatives of Chenopodeaceae and Tamaricaceae families grow, adapted to life in such conditions. In this regard, the aim of this article is to study the ecology, salinity accumulation and salt excretion of Climacoptera lanata and Tamarix hispida, determining the adaptation abilities of Climacoptera lanata and Tamarix hispida in Kyzylkum Desert conditions. Material and Methods: The main methods that were used to achieve the goal: generally accepted methods of soil determination – spectrophotometric, potentiometric, manometric. Results and Discussion: The main results that were achieved in this study: salt balance of halophytes was revealed on the example of C. lanata and T. hispida species, groups on plant resistance, on the quality of salt accumulator and salt extractor, on dry residue (2-3.4; Cl- 0.1-0.3, SO42- 1.5-1.9%) were identified, saline soils were determined. Leaf respiration intensity ranged from 111-323 mm3 O2. Bioecological features of C. lanata and T. hispida, as well as chemical composition of soil and water in Central Kyzylkum and mineral composition of biomass of the studied plants, were revealed. Conclusion: The main ecological problems in the conditions of Uzbekistan were determined. The practical significance of the study is that methods of adaptation of Climacoptera and Tamarix species to saline soils in areas with low water level (2-3.5 m) can be used for similar biotypes in order to reduce damage from soil salinity.