Contents

Arid Ecosystems

Vol. 10, No. 4, 2020

Systematic Study of Arid Territories

Trans-Volga–Trans-Ural Steppes of the Northern Subzone of the Steppe Zone: Features of Modern Formation Diversity

I. N. Safronova, O. G. Kalmykova, and N. Yu. Stepanova p. 255  abstract

Structure of the Botanical Diversity of the Utrish–Tuapse Variant of the Crimean-Novorossiysk Orobiom

G. N. Ogureeva, M. V. Bocharnikov, and E. G. Suslova p. 261  abstract

Floristic Diversity of Insular Pine Forests of the Trans-Volga–Kazakh Steppe Province

E. A. Eremeeva and N. B. Leonova p. 269  abstract

Dynamics of Modern Vegetation for Pasture Use in the Northwestern Pre-Caspian Region

V. G. Lazareva, V. A. Bananova, and Nguyen Van Zung p. 276  abstract

Ecological and Biological Features of the Distribution of the Siberian Apricot (Prunus sibirica L.) in the Southern Part of the Selenga River Basin

S. N. Bazha, T. G. Baskhaeva, E. V. Danzhalova, Yu. I. Drobyshev, L. A. Ivanov, L. A. Ivanova, S. V. Migalina, Yu. A. Rupyshev, V. I. Ubugunova, E. A. Bogdanov, S. Khadbaatar, E. G. Tsyrempilov, G. Tserenkhand, and T. Shinekhuu p. 284  abstract

F. A. Höfft’s Caucasian Herbarium

A. V. Scherbakov, Yu. Reyer, and O. S. Grinchenko p. 293  abstract

Biological Features of the Northwest Pre-Caspian Saiga Population at Different Sizes

T. Yu. Karimova, A. A. Lushchekina, V. M. Neronov, N. Yu. Pyurvenova, and Yu. N. Arylov p. 298  abstract

Forage Selectivity of Semi-Free-Roaming Bison (Bison bison) in Sod-Forming Cereal Steppes in the Western Manych River Valley

V. V. Dzhapova, O. G. Bembeeva, E. Ch. Ayusheva, V. D. Kazmin, R. R. Dzhapova, and B. D. Abaturov p. 305  abstract

Variability of Soil Salinity and Phytodiversity in Areas of Different Ages of the Caspian Sea Plain

M. V. Konyushkova, Yu. D. Nukhimovskaya, Z. U. Gasanova, and N. Yu. Stepanova p. 312  abstract

Characteristics of Spring–Summer Drought in Dry and Wet Periods in the South of European Russia

A. N. Zolotokrylin, T. B. Titkova, and E. A. Cherenkova p. 322  abstract

Evaluation of Estimation Methods for Monthly Reference Evapotranspiration in Arid Climates

M. Nazari, M. R. Chaichi, H. Kamel, M. Grismer, and S. M. M. Sadeghi p. 329  abstract

Applied Problems of Arid Land Development

Medical and Geographical Assessment of the National Park Area for Tourist and Conservation Activities

T. V. Dikareva, E. G. Koroleva, and S. S. Tupov p. 337  abstract

Use of Salt-Transfer Parameters in Forecast Decisions

A. P. Belousova p. 345  abstract

Field and Remote Studies and Mathematical Modeling of Mountain-Steppe Ecosystems on a Landscape Basis

A. K. Cherkashin and A. Yu. Bibaeva p. 351  abstract

Increasing the Efficiency of Plant-Cover Restoration in the Modern Focus of Deflation on Pastures of the Northwestern Caspian Region

A. S. Manaenkov and L. P. Rybashlykova p. 358  abstract

Long-term Dynamics of Vegetation Restoration in the Technogenic Landscapes of the Bylym Arid Depression (Central Caucasus)

V. A. Chadaeva, N. L. Tsepkova, and A. Zh. Zhashuev p. 368  abstract

Chernozems of Western Transbaikal: Distribution, Chemical Fertility, Organic Matter, Humus, and Yields

G. D. Chimitdorzhieva p. 376  abstract

Studies of the Effects of Pyrogenic Exposure on the Enzymatic Activity of Chestnut and Chernozem Soils

S. Ya. Semenenko, N. V. Morozova, and S. S. Marchenko p. 384  abstract

Water Ecosystems of Arid Territories

Analysis of the Structure of the Metacommunity of Plankton and Bottom Organisms in Rivers of the Lake Elton Basin

T. D. Zinchenko, V. K. Shitikov, L. V. Golovatyuk, and E. V. Abrosimova p. 390  abstract

Zn, Cu, Pb, Cd, and Ni Levels in Tissues and Organs of the Main Representatives of the Lower Volga Ichthiofauna

G. K. Bulakhtina, A. A. Bakaneva, A. V. Kudryashov, and N. I. Kudryashova p. 396  abstract