Evaluation of changes in ecological conditions of wetlands in the Teniz-Korgalzhin depression (Kazakhstan)

Y N Sagatbayev,Y P Krupochkin,O N Baryshnikova,O B Mazbayev

doi:10.15421/2019_816

Abstract

The article presents the results of a study of the long-term dynamics of the state of ecosystems of the Teniz-Korgalzhyn depression, carried out using data from the Earth remote sensing (ERS). Based on the analysis of space images, the formation factors of modern environmental conditions are established. In the study area, such factors are positional and barrier factors, as well as the confinement of individual surface sections to different-height layers of the Earth's surface. An analysis of the Landsat series of space images taken at different time, made it possible to establish spatial differences in the intensity of phytomass accumulation in areas located in different landscape locations. The spatio-temporal variability of the ecological conditions of the Teniz-Korgalzhin depression wetlands is accompanied by a change in the amount of food supply and the number of living organisms. Monitoring of these changes on the basis of Earth remote sensing data will allow to prove measures to preserve the biodiversity of the Teniz-Korgalzhin depression wetlands timely.

Highlights

The ecological conditions of the wetlands of Teniz - Korgalzhin depression are favorable for the habitat of many species of birds, including, listed in the Red Book of Kazakhstan - curly pelican (Pelecanus crispus), small (Egretta garzetta) and great white (Egretta alba), grey heron (Ardea cinerea) and others
At the stage of interpretation of Earth remote sensing data, it was required to establish the consistency of spatiotemporal variability of the values of vegetation indices
The anticipation of the air masses accumulating in front of the Kazakh Shoal barrier begins at a distance of about 100 km to it; as a result, an increase in precipitation occurs on the vast area of the Teniz-Korgalzhin depression adjacent to this upwind from the windward side

Summary

Introduction

The ecological conditions of the wetlands of Teniz - Korgalzhin depression are favorable for the habitat of many species of birds, including, listed in the Red Book of Kazakhstan - curly pelican (Pelecanus crispus), small (Egretta garzetta) and great white (Egretta alba), grey heron (Ardea cinerea) and others. This is one of the northernmost habitats of the Pink Flamingo (Phoenicopterus roseus). In 2008, the territory became part of the UNESCO World Heritage Saryarka - Steppes and Lakes of Northern Kazakhstan The core of this territory is Teniz Lake, into which the rivers Nura, Kulanutpes, Kon and others flow. The authors of the article set the task to explore the possibilities of assessing the variability of the ecological conditions of the territory based on the data of the Earth remote sensing (ERS)

Methods

Results

Conclusion