Contents

Arid Ecosystems

Vol. 11, No. 2, 2021

Systematic Study of Arid Territories

Hydroclimate Characteristics of Extreme Droughts Observed on the Russian Plain since the 1970s

A. G. Georgiadi and E. A. Kashutina p. 117  abstract

Analysis of the Cause and Effect of Ecosystem Degradation in the Lake Baikal Basin Based on Long-Term Monitoring in the Network of Model Polygons

S. N. Bazha, A. V. Andreev, E. A. Bogdanov, E. V. Danzhalova, Yu. I. Drobyshev, I. A. Petukhov, Yu. A. Rupyshev, V. I. Ubugunova, L. A. Ivanov, S. Khadbaatar, and E. G. Tsyrempilov p. 124  abstract

Ecological and Biological Aspects of Formation of Protective Forest Stands in Arid Regions

R. M. Adamova and M.-R. A. Kaziev p. 135  abstract

Socio-Ecological and Ethical Economic Demand of Urban Parks in Gujrat City, Punjab, Pakistan

M. M. Anwar, F. Fayyaz, A. Aziz, and M. R. Mahmood p. 141  abstract

GIS Modeling of Green Infrastructure of Mediterranean Cities for the Management of Urbanized Ecosystems

E. E. Mironova p. 149  abstract

Nature and Resource Potential of Officinal Plants Flora of Ciscaucasia

N. B. Leonova and I. M. Miklyaeva p. 156  abstract

Saiga Populations of Russia and Kazakhstan: Current Status and Retrospective Analysis of Some Biological Parameters

T. Yu. Karimova, A. A. Lushchekina, and V. M. Neronov p. 164  abstract

Digital Phytoindication of Soil Salinity in Dry Steppes (Republic of Kalmykia)

K. O. Prokopyeva, M. V. Konyushkova, N. M. Novikova, and I. V. Sobolev p. 173  abstract

Applied Problems of Arid Land Development

Suitability of Agrochernozem Soils for Irrigation Amelioration in the Southern Forest–Steppe Zone of the Republic of Bashkortostan

R. R. Suleymanov, G. M. Gizatshina, and I. M. Gabbasova p. 186  abstract

Carbonates in Irrigated Soils of the Caspian Depression

I. N. Gorokhova and I. N. Chursin p. 193  abstract

Influence of Temperature on the Functional Characteristics of the Key Enyzme of Energy Metabolism in the Skeletal Muscles of Small Ground Squirrels (Sphermophilu spygmaeus Pall.) of Steppe Ecosystems

R. A. Khalilov, A. M. Jafarova, V. R. Abdullaev, and Sh. A. Abakarova p. 200  abstract

Water Ecosystems of Arid Territories

Hydrobiological Research of the Terek–Caspian Coastal Area

M. M. Osmanov, F. Sh. Amaeva, and A. A. Abdurakhmanova p. 207  abstract

Current State and Long-Term Dynamics of Zooplankton of the Tsimlyansk Reservoir (Don River, Russia)

V. I. Lazareva p. 213  abstract