Annual saltworts community of the coastal line middle part of Caspian sea

Kamala K ?�Sadova

doi:10.29228/plantfungalres.52

Abstract

The nonuniformity of the environmental conditions of the Caspian coast and the anthropogenic factors lead to an uneven distribution of various types of vegetation. Desert vegetation is one of the most widely represented and most vulnerable types in this region. In this regard, the current state of annual saltwort of coastal desert phytocenoses has been studied. A comparative analysis of modern plant units of the annual saltwort desert with plant units of previous years have been carried out. New plant units â annual saltwort formation Salsoleta tragosae and three associations â S. kali subsp. tragus+Convolvolus persicus, S. kali subsp. tragus+Suaeda confusa, S. kali subsp. tragus+Limonium meyeri have been found in the coast of the Azerbaijani part of the Caspian Sea. An inventory of the species composition of annual saltwort communities has been carried out, dominant species have been identified. Based on the collected material, an analysis of Î± and Î² diversity has been conducted.

Highlights

Coastal ecotopes are under the influence of continuously affecting external factors leading to disruption of structures and dynamics of the complexes of coastal ecosystems [Mo Alessio, DAntraccoli Marco et al, 2019]
The annual saltwort desert communities of the coastal lowlands are increasingly replaced by galomesophytes meadow and wetland vegetation [Alizade et al, 2019]
The edificators E. angustifolia, Ph. australis, R. anatolicus., S. confusa, C. persicus, A. sibirica are common for the two regions

Summary

Introduction

Coastal ecotopes are under the influence of continuously affecting external factors leading to disruption of structures and dynamics of the complexes of coastal ecosystems [Mo Alessio, DAntraccoli Marco et al, 2019]. The protection and rational use of the Caspian coastal environment is attracting growing interest. The consequence of this is a change in the dominant composition, change in species diversity, etc. The modern landscape of the coast is formed by a long combined effect of anthropogenic and natural factors [Alizade et al, 2018]. The annual saltwort desert communities of the coastal lowlands are increasingly replaced by galomesophytes meadow and wetland vegetation [Alizade et al, 2019]. In climatic terms, it refers to the lowland zone with a temperate continental climate: the absolute minimum air temperature is -1.5 oC in January, the absolute maximum +43.3 oC in August. The main soil type in the study area is meadow-forest, alluvial-

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