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Showing 1 - 200 of 2341 Journals sorted alphabetically
3D Research     Hybrid Journal   (Followers: 19, SJR: 0.214, h-index: 10)
4OR: A Quarterly J. of Operations Research     Hybrid Journal   (Followers: 9, SJR: 1.073, h-index: 25)
AAPS J.     Hybrid Journal   (Followers: 17, SJR: 1.192, h-index: 74)
AAPS PharmSciTech     Hybrid Journal   (Followers: 6, SJR: 0.718, h-index: 54)
Abdominal Imaging     Hybrid Journal   (Followers: 16, SJR: 0.723, h-index: 60)
Abhandlungen aus dem Mathematischen Seminar der Universitat Hamburg     Hybrid Journal   (Followers: 2, SJR: 0.447, h-index: 12)
Academic Psychiatry     Full-text available via subscription   (Followers: 22, SJR: 0.492, h-index: 32)
Academic Questions     Hybrid Journal   (Followers: 7, SJR: 0.135, h-index: 6)
Accreditation and Quality Assurance: J. for Quality, Comparability and Reliability in Chemical Measurement     Hybrid Journal   (Followers: 26, SJR: 0.378, h-index: 30)
Acoustical Physics     Hybrid Journal   (Followers: 10, SJR: 0.355, h-index: 20)
Acoustics Australia     Hybrid Journal  
Acta Analytica     Hybrid Journal   (Followers: 7, SJR: 0.387, h-index: 6)
Acta Applicandae Mathematicae     Hybrid Journal   (Followers: 1, SJR: 0.624, h-index: 34)
Acta Biotheoretica     Hybrid Journal   (Followers: 5, SJR: 0.419, h-index: 25)
Acta Diabetologica     Hybrid Journal   (Followers: 12, SJR: 1.318, h-index: 46)
Acta Endoscopica     Hybrid Journal   (Followers: 1, SJR: 0.113, h-index: 8)
acta ethologica     Hybrid Journal   (Followers: 4, SJR: 0.465, h-index: 23)
Acta Geochimica     Hybrid Journal   (Followers: 3)
Acta Geodaetica et Geophysica     Hybrid Journal   (Followers: 1, SJR: 0.294, h-index: 13)
Acta Geotechnica     Hybrid Journal   (Followers: 6, SJR: 1.818, h-index: 22)
Acta Informatica     Hybrid Journal   (Followers: 5, SJR: 0.524, h-index: 32)
Acta Mathematica     Hybrid Journal   (Followers: 10, SJR: 8.021, h-index: 47)
Acta Mathematica Hungarica     Hybrid Journal   (Followers: 2, SJR: 0.53, h-index: 29)
Acta Mathematica Sinica, English Series     Hybrid Journal   (Followers: 5, SJR: 0.406, h-index: 30)
Acta Mathematica Vietnamica     Hybrid Journal   (SJR: 0.451, h-index: 5)
Acta Mathematicae Applicatae Sinica, English Series     Hybrid Journal   (SJR: 0.22, h-index: 20)
Acta Mechanica     Hybrid Journal   (Followers: 18, SJR: 0.898, h-index: 52)
Acta Mechanica Sinica     Hybrid Journal   (Followers: 4, SJR: 0.426, h-index: 29)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 5, SJR: 0.525, h-index: 18)
Acta Meteorologica Sinica     Hybrid Journal   (Followers: 3, SJR: 0.524, h-index: 14)
Acta Neurochirurgica     Hybrid Journal   (Followers: 6, SJR: 0.833, h-index: 73)
Acta Neurologica Belgica     Hybrid Journal   (SJR: 0.348, h-index: 27)
Acta Neuropathologica     Hybrid Journal   (Followers: 3, SJR: 6.61, h-index: 117)
Acta Oceanologica Sinica     Hybrid Journal   (Followers: 3, SJR: 0.295, h-index: 17)
Acta Parasitologica     Hybrid Journal   (Followers: 9, SJR: 0.581, h-index: 28)
Acta Physiologiae Plantarum     Hybrid Journal   (Followers: 2, SJR: 0.551, h-index: 39)
Acta Politica     Hybrid Journal   (Followers: 13, SJR: 0.658, h-index: 20)
adhäsion KLEBEN & DICHTEN     Hybrid Journal   (Followers: 5, SJR: 0.103, h-index: 4)
ADHD Attention Deficit and Hyperactivity Disorders     Hybrid Journal   (Followers: 20, SJR: 0.871, h-index: 15)
Adhesion Adhesives & Sealants     Hybrid Journal   (Followers: 7)
Administration and Policy in Mental Health and Mental Health Services Research     Partially Free   (Followers: 14, SJR: 0.795, h-index: 40)
Adsorption     Hybrid Journal   (Followers: 4, SJR: 0.774, h-index: 52)
Advances in Applied Clifford Algebras     Hybrid Journal   (Followers: 3, SJR: 0.319, h-index: 15)
Advances in Atmospheric Sciences     Hybrid Journal   (Followers: 34, SJR: 0.959, h-index: 44)
Advances in Computational Mathematics     Hybrid Journal   (Followers: 15, SJR: 1.255, h-index: 44)
Advances in Contraception     Hybrid Journal   (Followers: 2)
Advances in Data Analysis and Classification     Hybrid Journal   (Followers: 52, SJR: 1.113, h-index: 14)
Advances in Gerontology     Partially Free   (Followers: 8, SJR: 0.141, h-index: 3)
Advances in Health Sciences Education     Hybrid Journal   (Followers: 23, SJR: 1.397, h-index: 42)
Advances in Manufacturing     Hybrid Journal   (Followers: 3, SJR: 0.2, h-index: 4)
Advances in Polymer Science     Hybrid Journal   (Followers: 40, SJR: 0.637, h-index: 89)
Advances in Therapy     Hybrid Journal   (Followers: 5, SJR: 0.79, h-index: 44)
Aegean Review of the Law of the Sea and Maritime Law     Hybrid Journal   (Followers: 7)
Aequationes Mathematicae     Hybrid Journal   (Followers: 2, SJR: 0.882, h-index: 23)
Aerobiologia     Hybrid Journal   (Followers: 1, SJR: 0.511, h-index: 36)
Aesthetic Plastic Surgery     Hybrid Journal   (Followers: 8, SJR: 0.821, h-index: 49)
African Archaeological Review     Hybrid Journal   (Followers: 14, SJR: 0.612, h-index: 24)
Afrika Matematika     Hybrid Journal   (Followers: 1, SJR: 0.248, h-index: 6)
AGE     Hybrid Journal   (Followers: 7, SJR: 1.358, h-index: 33)
Ageing Intl.     Hybrid Journal   (Followers: 7, SJR: 0.337, h-index: 10)
Aggiornamenti CIO     Hybrid Journal   (Followers: 1)
Aging Clinical and Experimental Research     Hybrid Journal   (Followers: 3, SJR: 0.529, h-index: 55)
Agricultural Research     Hybrid Journal   (Followers: 3)
Agriculture and Human Values     Hybrid Journal   (Followers: 12, SJR: 1.197, h-index: 49)
Agroforestry Systems     Hybrid Journal   (Followers: 20, SJR: 0.64, h-index: 56)
Agronomy for Sustainable Development     Hybrid Journal   (Followers: 10, SJR: 1.732, h-index: 59)
AI & Society     Hybrid Journal   (Followers: 7, SJR: 0.171, h-index: 19)
AIDS and Behavior     Hybrid Journal   (Followers: 13, SJR: 2.006, h-index: 71)
Air Quality, Atmosphere & Health     Hybrid Journal   (Followers: 2, SJR: 0.706, h-index: 19)
Akupunktur & Aurikulomedizin     Full-text available via subscription   (Followers: 1)
Algebra and Logic     Hybrid Journal   (Followers: 2, SJR: 0.566, h-index: 18)
Algebra Universalis     Hybrid Journal   (Followers: 2, SJR: 0.388, h-index: 22)
Algebras and Representation Theory     Hybrid Journal   (Followers: 1, SJR: 0.868, h-index: 20)
Algorithmica     Hybrid Journal   (Followers: 7, SJR: 0.898, h-index: 56)
Allergo J.     Full-text available via subscription   (Followers: 1, SJR: 0.183, h-index: 20)
Allergo J. Intl.     Hybrid Journal   (Followers: 2)
Alpine Botany     Hybrid Journal   (Followers: 3, SJR: 0.729, h-index: 20)
ALTEX : Alternatives to Animal Experimentation     Open Access   (Followers: 3, SJR: 1.392, h-index: 32)
AMBIO     Hybrid Journal   (Followers: 14, SJR: 1.094, h-index: 87)
American J. of Cardiovascular Drugs     Hybrid Journal   (Followers: 10, SJR: 0.864, h-index: 39)
American J. of Community Psychology     Hybrid Journal   (Followers: 24, SJR: 1.237, h-index: 83)
American J. of Criminal Justice     Hybrid Journal   (Followers: 5, SJR: 0.634, h-index: 13)
American J. of Cultural Sociology     Hybrid Journal   (Followers: 11, SJR: 0.283, h-index: 3)
American J. of Dance Therapy     Hybrid Journal   (Followers: 4, SJR: 0.175, h-index: 13)
American J. of Potato Research     Hybrid Journal   (Followers: 2, SJR: 0.558, h-index: 35)
American J. of Psychoanalysis     Hybrid Journal   (Followers: 21, SJR: 0.293, h-index: 13)
American Sociologist     Hybrid Journal   (Followers: 11, SJR: 0.18, h-index: 13)
Amino Acids     Hybrid Journal   (Followers: 7, SJR: 1.362, h-index: 83)
AMS Review     Partially Free   (Followers: 4)
Analog Integrated Circuits and Signal Processing     Hybrid Journal   (Followers: 5, SJR: 0.21, h-index: 37)
Analysis and Mathematical Physics     Hybrid Journal   (Followers: 4, SJR: 0.665, h-index: 7)
Analysis in Theory and Applications     Hybrid Journal  
Analysis of Verbal Behavior     Hybrid Journal   (Followers: 4)
Analytical and Bioanalytical Chemistry     Hybrid Journal   (Followers: 28, SJR: 1.096, h-index: 123)
Anatomical Science Intl.     Hybrid Journal   (Followers: 2, SJR: 0.301, h-index: 26)
Angewandte Schmerztherapie und Palliativmedizin     Hybrid Journal  
Angiogenesis     Hybrid Journal   (Followers: 3, SJR: 2.212, h-index: 69)
Animal Cognition     Hybrid Journal   (Followers: 14, SJR: 1.122, h-index: 55)
Annales françaises de médecine d'urgence     Hybrid Journal   (Followers: 1, SJR: 0.156, h-index: 4)
Annales Henri Poincaré     Hybrid Journal   (Followers: 3, SJR: 1.377, h-index: 32)
Annales mathématiques du Québec     Hybrid Journal   (Followers: 4)
Annali dell'Universita di Ferrara     Hybrid Journal   (SJR: 0.504, h-index: 14)
Annali di Matematica Pura ed Applicata     Hybrid Journal   (Followers: 1, SJR: 1.167, h-index: 26)
Annals of Behavioral Medicine     Hybrid Journal   (Followers: 11, SJR: 2.112, h-index: 98)
Annals of Biomedical Engineering     Hybrid Journal   (Followers: 18, SJR: 1.182, h-index: 94)
Annals of Combinatorics     Hybrid Journal   (Followers: 3, SJR: 0.849, h-index: 15)
Annals of Data Science     Hybrid Journal   (Followers: 8)
Annals of Dyslexia     Hybrid Journal   (Followers: 9, SJR: 0.857, h-index: 40)
Annals of Finance     Hybrid Journal   (Followers: 27, SJR: 0.686, h-index: 14)
Annals of Forest Science     Hybrid Journal   (Followers: 4, SJR: 0.929, h-index: 57)
Annals of Global Analysis and Geometry     Hybrid Journal   (Followers: 1, SJR: 1.136, h-index: 23)
Annals of Hematology     Hybrid Journal   (Followers: 13, SJR: 1.117, h-index: 62)
Annals of Mathematics and Artificial Intelligence     Hybrid Journal   (Followers: 6, SJR: 0.593, h-index: 42)
Annals of Microbiology     Hybrid Journal   (Followers: 9, SJR: 0.402, h-index: 26)
Annals of Nuclear Medicine     Hybrid Journal   (Followers: 5, SJR: 0.68, h-index: 45)
Annals of Operations Research     Hybrid Journal   (Followers: 8, SJR: 1.186, h-index: 78)
Annals of Regional Science     Hybrid Journal   (Followers: 7, SJR: 0.405, h-index: 42)
Annals of Software Engineering     Hybrid Journal   (Followers: 12)
Annals of Solid and Structural Mechanics     Hybrid Journal   (Followers: 9, SJR: 0.553, h-index: 8)
Annals of Surgical Oncology     Hybrid Journal   (Followers: 11, SJR: 1.902, h-index: 127)
Annals of Telecommunications     Hybrid Journal   (Followers: 7, SJR: 0.315, h-index: 25)
Annals of the Institute of Statistical Mathematics     Hybrid Journal   (Followers: 1, SJR: 0.931, h-index: 31)
Antonie van Leeuwenhoek     Hybrid Journal   (Followers: 5, SJR: 0.992, h-index: 87)
Apidologie     Hybrid Journal   (Followers: 4, SJR: 1.14, h-index: 57)
APOPTOSIS     Hybrid Journal   (Followers: 7, SJR: 1.554, h-index: 87)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 2, SJR: 0.354, h-index: 27)
Applications of Mathematics     Hybrid Journal   (Followers: 1, SJR: 0.274, h-index: 20)
Applied Biochemistry and Biotechnology     Hybrid Journal   (Followers: 44, SJR: 0.575, h-index: 80)
Applied Biochemistry and Microbiology     Hybrid Journal   (Followers: 17, SJR: 0.267, h-index: 26)
Applied Categorical Structures     Hybrid Journal   (Followers: 2, SJR: 0.361, h-index: 21)
Applied Composite Materials     Hybrid Journal   (Followers: 45, SJR: 0.705, h-index: 35)
Applied Entomology and Zoology     Partially Free   (Followers: 2, SJR: 0.554, h-index: 34)
Applied Geomatics     Hybrid Journal   (Followers: 3, SJR: 0.323, h-index: 9)
Applied Geophysics     Hybrid Journal   (Followers: 7, SJR: 0.541, h-index: 13)
Applied Intelligence     Hybrid Journal   (Followers: 14, SJR: 0.777, h-index: 43)
Applied Magnetic Resonance     Hybrid Journal   (Followers: 3, SJR: 0.358, h-index: 34)
Applied Mathematics & Optimization     Hybrid Journal   (Followers: 4, SJR: 0.955, h-index: 33)
Applied Mathematics - A J. of Chinese Universities     Hybrid Journal   (SJR: 0.275, h-index: 8)
Applied Mathematics and Mechanics     Hybrid Journal   (Followers: 4, SJR: 0.37, h-index: 26)
Applied Microbiology and Biotechnology     Hybrid Journal   (Followers: 61, SJR: 1.262, h-index: 161)
Applied Physics A     Hybrid Journal   (Followers: 7, SJR: 0.535, h-index: 121)
Applied Physics B: Lasers and Optics     Hybrid Journal   (Followers: 23, SJR: 0.983, h-index: 104)
Applied Psychophysiology and Biofeedback     Hybrid Journal   (Followers: 6, SJR: 0.677, h-index: 47)
Applied Research in Quality of Life     Hybrid Journal   (Followers: 10, SJR: 0.288, h-index: 15)
Applied Solar Energy     Hybrid Journal   (Followers: 15, SJR: 0.251, h-index: 6)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 4, SJR: 0.351, h-index: 9)
Aquaculture Intl.     Hybrid Journal   (Followers: 21, SJR: 0.613, h-index: 40)
Aquarium Sciences and Conservation     Hybrid Journal   (Followers: 1)
Aquatic Ecology     Hybrid Journal   (Followers: 30, SJR: 0.646, h-index: 44)
Aquatic Geochemistry     Hybrid Journal   (Followers: 3, SJR: 0.764, h-index: 39)
Aquatic Sciences     Hybrid Journal   (Followers: 12, SJR: 1.172, h-index: 53)
Arabian J. for Science and Engineering     Hybrid Journal   (Followers: 5, SJR: 0.345, h-index: 20)
Arabian J. of Geosciences     Hybrid Journal   (Followers: 1, SJR: 0.417, h-index: 16)
Archaeological and Anthropological Sciences     Hybrid Journal   (Followers: 21, SJR: 1.056, h-index: 15)
Archaeologies     Hybrid Journal   (Followers: 12, SJR: 0.397, h-index: 13)
Archiv der Mathematik     Hybrid Journal   (Followers: 1, SJR: 0.597, h-index: 29)
Archival Science     Hybrid Journal   (Followers: 51, SJR: 0.804, h-index: 22)
Archive for History of Exact Sciences     Hybrid Journal   (Followers: 7, SJR: 0.28, h-index: 15)
Archive for Mathematical Logic     Hybrid Journal   (Followers: 1, SJR: 0.946, h-index: 23)
Archive for Rational Mechanics and Analysis     Hybrid Journal   (SJR: 4.091, h-index: 66)
Archive of Applied Mechanics     Hybrid Journal   (Followers: 4, SJR: 0.865, h-index: 40)
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 4, SJR: 2.841, h-index: 40)
Archives of Dermatological Research     Hybrid Journal   (Followers: 6, SJR: 0.9, h-index: 65)
Archives of Environmental Contamination and Toxicology     Hybrid Journal   (Followers: 10, SJR: 0.846, h-index: 84)
Archives of Gynecology and Obstetrics     Hybrid Journal   (Followers: 16, SJR: 0.695, h-index: 47)
Archives of Microbiology     Hybrid Journal   (Followers: 8, SJR: 0.702, h-index: 85)
Archives of Orthopaedic and Trauma Surgery     Hybrid Journal   (Followers: 8, SJR: 1.039, h-index: 56)
Archives of Osteoporosis     Hybrid Journal   (Followers: 2, SJR: 1.092, h-index: 13)
Archives of Sexual Behavior     Hybrid Journal   (Followers: 9, SJR: 1.198, h-index: 74)
Archives of Toxicology     Hybrid Journal   (Followers: 15, SJR: 1.595, h-index: 76)
Archives of Virology     Hybrid Journal   (Followers: 5, SJR: 1.086, h-index: 90)
Archives of Women's Mental Health     Hybrid Journal   (Followers: 13, SJR: 1.264, h-index: 50)
Archivio di Ortopedia e Reumatologia     Hybrid Journal  
Archivum Immunologiae et Therapiae Experimentalis     Hybrid Journal   (Followers: 2, SJR: 1.2, h-index: 42)
ArgoSpine News & J.     Hybrid Journal   (SJR: 0.102, h-index: 3)
Argumentation     Hybrid Journal   (Followers: 4, SJR: 0.295, h-index: 18)
Arid Ecosystems     Hybrid Journal   (Followers: 3)
Arkiv för Matematik     Hybrid Journal   (Followers: 1, SJR: 0.948, h-index: 22)
Arnold Mathematical J.     Hybrid Journal   (Followers: 1)
Arthropod-Plant Interactions     Hybrid Journal   (Followers: 2, SJR: 0.797, h-index: 17)
Arthroskopie     Hybrid Journal   (Followers: 1, SJR: 0.145, h-index: 8)
Artificial Intelligence and Law     Hybrid Journal   (Followers: 10, SJR: 0.288, h-index: 25)
Artificial Intelligence Review     Hybrid Journal   (Followers: 15, SJR: 0.948, h-index: 48)
Artificial Life and Robotics     Hybrid Journal   (Followers: 8, SJR: 0.231, h-index: 14)
Asia Europe J.     Hybrid Journal   (Followers: 4, SJR: 0.247, h-index: 9)
Asia Pacific Education Review     Hybrid Journal   (Followers: 9, SJR: 0.371, h-index: 17)
Asia Pacific J. of Management     Hybrid Journal   (Followers: 11, SJR: 1.676, h-index: 50)
Asia-Pacific Education Researcher     Hybrid Journal   (Followers: 11, SJR: 0.353, h-index: 13)
Asia-Pacific Financial Markets     Hybrid Journal   (Followers: 2, SJR: 0.19, h-index: 15)
Asia-Pacific J. of Atmospheric Sciences     Hybrid Journal   (Followers: 20, SJR: 1.006, h-index: 14)
Asian Business & Management     Hybrid Journal   (Followers: 7, SJR: 0.41, h-index: 10)
Asian J. of Business Ethics     Hybrid Journal   (Followers: 7)
Asian J. of Criminology     Hybrid Journal   (Followers: 5, SJR: 0.263, h-index: 8)
AStA Advances in Statistical Analysis     Hybrid Journal   (Followers: 2, SJR: 0.681, h-index: 15)
AStA Wirtschafts- und Sozialstatistisches Archiv     Hybrid Journal   (Followers: 5, SJR: 0.195, h-index: 5)
ästhetische dermatologie & kosmetologie     Full-text available via subscription  
Astronomy and Astrophysics Review     Hybrid Journal   (Followers: 21, SJR: 4.511, h-index: 44)
Astronomy Letters     Hybrid Journal   (Followers: 19, SJR: 0.58, h-index: 30)
Astronomy Reports     Hybrid Journal   (Followers: 12, SJR: 0.473, h-index: 23)
Astrophysical Bulletin     Hybrid Journal   (Followers: 2, SJR: 0.469, h-index: 11)

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Journal Cover Arid Ecosystems
  [3 followers]  Follow
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 2079-0961 - ISSN (Online) 2079-0988
   Published by Springer-Verlag Homepage  [2341 journals]
  • Biological activity of anthropogenic mountain soils of medieval
           agricultural terraces of mountainous Dagestan
    • Authors: N. N. Kashirskaya; E. V. Chernisheva; A. K. Khodzaeva; A. V. Borisov
      Pages: 1 - 10
      Abstract: Abstract The study of agricultural terraces in mountainous Dagestan that date to the Middle Ages revealed the polygenetic character of anthropogenic soils, which reflects the main stages of their evolution. In light of their long-term burial, the soil layers of the preanthropogenic stage of evolution were characterized by fairly high values of biological activity, with the exception of the biomass of fungal mycelium, a small amount of which remained. At the early agrogenic stage, soil plowing without irrigation did not significantly change their microbiological properties; however, the increase in urease activity in some studied profiles may indicate that cattle fertilizers were applied in some areas of the terraces. During the Little Ice Age (the 16–18th centuries A.D.) the terraces were abandoned, which led to the accumulation of organic carbon in the soils as a result of the fallow process, as well as an increase in their enzymatic activity. The second agrogenic stage with irrigation was characterized by a noticeable growth in the active microbial biomass, the soil phosphatase activity, and, in particular, the urease activity, which may indicate that farming was intensive and organic fertilizers were applied. In the last 20 years, the development of terraces under natural conditions led to a noticeable growth in the biological activity of upper fallow horizons. However, the urease activity significantly decreased in nonirrigated areas, whereas the indicators of microbial biomass remained at the same level.
      PubDate: 2017-01-01
      DOI: 10.1134/s2079096117010085
      Issue No: Vol. 7, No. 1 (2017)
  • Components of C and N cycles in natural and anthropogenic ecosystems of
           semideserts of the northern Caspian area
    • Authors: N. Yu. Kulakova; B. D. Abaturov; Yu. D. Nukhimovskaya
      Pages: 11 - 18
      Abstract: Abstract Changes in the amounts and dynamics of the deposition of carbon and nitrogen in the soil surface of anthropogenic pasture and forest ecosystems created in places of natural steppe and desert plant associations in the Northern Cis-Caspian area were studied. For two years after input, the litter of oak stands (Quercus robur) deposited 1.3 times more carbon and about the same amount of nitrogen as compared to the steppe litter, even though the mass of litter input in the forest plantation was 1.4 times less than that in the grass ecosystem. The values of carbon and nitrogen contents in the soil under steppe vegetation and under plantation were similar, but there was a redistribution of carbon and nitrogen contents in the forest soil. The carbon contents in the forest litter and 0–5 cm layer make up 33% of the contents in the litter and in 0–50 cm soil layer. The respective value was 22% under the steppe vegetation; the nitrogen contents were 2.9 and 2.0%, respectively. Due to intensive grazing, the ecosystems of microdepressions obtain 1.6–1.7 times less carbon and nitrogen than those of virgin plots. This value was 1.4 for the ecosystem of microelevations. A significant decrease in the contents of carbon and nitrogen was observed in the litter and 0–5 cm layer of meadow–chestnut soils of microdepressions under the pressure of intensive grazing.
      PubDate: 2017-01-01
      DOI: 10.1134/s2079096117010097
      Issue No: Vol. 7, No. 1 (2017)
  • The impact of droughts on the mineralization of reservoirs in northeastern
    • Authors: Yu. S. Dacenko
      Pages: 19 - 22
      Abstract: The climatic features of northeastern Brazil result in the almost complete absence of river runoff during drought periods. The extreme irregularity of runoff in the reservoirs of the region leads to an increase in water salinity by the end of the drought. The degree of mineralization growth with respect to the reservoir volume at the beginning of the dry period and the amount of water abstraction from this reservoir during this period was estimated via the calculation of water mineralization for conditions in which there is no flow to reservoirs. These estimates are presented in the form of graphical calculation diagrams for three reservoirs of the Brazilian Ceará state.
      PubDate: 2017-01-01
      DOI: 10.1134/s2079096117010048
      Issue No: Vol. 7, No. 1 (2017)
  • Plant communities of the lower reaches of the Volga River on soils with
           strongly seasonal dynamics of salinization
    • Authors: V. B. Golub; A. V. Chuvashov; V. V. Bondareva; L. F. Nikolaichuk
      Pages: 23 - 30
      Abstract: Abstract The database EU-RU-002 of the Lower Volga valley vegetation plots has been analyzed. The database contains the characteristics of 15029 relevés located in the region in the period from 1924 to 2013. Two associations, Alismato‒Salicornietum Golub 1985, and Crypsido aculeatae‒Salsoletum sodae ass. nova, have been discovered. These associations include halophytes and glycophytes on the same sample plots. Analysis of water extracts from soil samples made it possible to determine significant dynamics of the toxicity of a soil solution during the year. These changes are related to the hydrological regime of the Volga River.
      PubDate: 2017-01-01
      DOI: 10.1134/s207909611701005x
      Issue No: Vol. 7, No. 1 (2017)
  • Phytocenotic characteristic of the Achnatherum splendens (trin.) Nevski
           communities of western Transbaikalia
    • Authors: M. G. Merkusheva; A. L. Baldanova; L. N. Boloneva; I. N. Lavrent’eva
      Pages: 31 - 40
      Abstract: Abstract The phytocenotic characteristics of cheegrass (Achnatherum splendens (trin.) Nevski) communities developed on solonchaks in the haloxerophytic steppe of western Transbaikalia are given. The specific features of their composition and structure have been revealed. The similarity of the species composition of cheegrass communities is slight or medium. The botanical composition accounts for 14 species of halophytes and 17 species of halotolerant glycophytes. The communities and their production are mainly formed by three to four species, including the dominants. The production of the cheegrass communities is at a normal level (1626 g/m2 per year).
      PubDate: 2017-01-01
      DOI: 10.1134/s2079096116040041
      Issue No: Vol. 7, No. 1 (2017)
  • Analysis of the current status of populations of rare plant species of
           nature monument Troicki chalk mountains (Orenburg region)
    • Authors: O. A. Karimova; L. M. Abramova; Ya. M. Golovanov
      Pages: 41 - 48
      Abstract: Abstract the results are presented for the study of four rare species in the Troicki chalk mountains: Anthemis trotzkiana Claus., Matthiola fragrans Bunge, Lepidium meyeri Claus, and Zygophyllum pinnatum Cham. The total density of the studied coenopopulations ranged from 2.2 to 6.1 copies/m2, and the effective density was 1.5–4.2 copies/m2. Coenopopulations are normally incomplete, most typically lacking the spectrum of seedlings, juvenile and senile individuals, and generative individuals that peak in middle-age. Coenopopulations Anthemis trotzkiana lack postsenile individuals. By the “delta-omega” classification, coenopopulations Anthemis trotzkiana, Matthiola fragrans are growing old, Lepidium meyeri are transitional, and Zygophyllum pinnatum are mature. The indices of recovery and senescence are 0.03–0.36 and 0.03–0.72, respectively. High levels of variability and plasticity of morphometric characters have been registered.
      PubDate: 2017-01-01
      DOI: 10.1134/s2079096117010073
      Issue No: Vol. 7, No. 1 (2017)
  • Distribution and ecological features of Peganum harmala L. in the environs
           of Lake Baskunchak (Astrakhan oblast)
    • Authors: K. A. Grebennikov
      Pages: 49 - 51
      Abstract: Abstract The modern distribution of Peganum harmala (Peganum harmala L.) in the environs of Lake Baskunchak (including the Bogdinsko–Baskunchakskiy Nature Reserve), where the species has been found for the first time, is shown. The distribution trends of the species and its indicator role in assessing the state of natural ecosystems in the area under study are discussed.
      PubDate: 2017-01-01
      DOI: 10.1134/s2079096117010061
      Issue No: Vol. 7, No. 1 (2017)
  • History of research on biodiversity in Crimean hypersaline waters
    • Authors: E. V. Anufriieva; N. V. Shadrin; S. N. Shadrina
      Pages: 52 - 58
      Abstract: Abstract The paper reviews the history of research on the biodiversity of hypersaline waters in the Crimean arid zone from the end of the 18th century to the present. Summing up the accumulated knowledge on biodiversity of these water bodies, the authors have noted the presence of 290 species of eukaryotic organisms, including 190 unicellular ones, and nearly 200 species of bacteria and archaea, of which at least 100 species are represented by cyanobacteria. It has been concluded that the diversity of both prokaryotic and eukaryotic organisms is still understudied. This paper is not an exhaustive review of the history of research on the biodiversity of Crimean hypersaline waters; it is rather a prelude to such a historical study, as well as a call for a broadening and deepening of the scientific knowledge of the unique biodiversity in these extreme habitats.
      PubDate: 2017-01-01
      DOI: 10.1134/s2079096117010036
      Issue No: Vol. 7, No. 1 (2017)
  • Topical and trophic structure of midsummer zooplankton in saline rivers in
           the Elton Lake basin
    • Authors: V. I. Lazareva
      Pages: 59 - 68
      Abstract: Abstract In August 2013, 17 taxa of zooplankton in the rank of species (Cladocera, Cyclopoida, Calanoida, and Rotifera) and three taxa of meroplankton (Mollusca, Diptera, and Heteroptera larvae) were identified in the zooplankton of six small rivers in the basin of Lake Elton with a mineralization of 6–32 g/L. Benthoplankton formed most of the list (45% of species); euplankton constituted only 20%. Three trophic levels were distinguished in the community: peaceful phyto- and bacteriodetritophages, omnivorous animals with different body sizes (<1.5 and 1.5–6 mm), and predators. The effect of salinity on the zooplankton structure, the biotopical distribution of species, the features of trophic relations, and the food supply of predators are discussed.
      PubDate: 2017-01-01
      DOI: 10.1134/s207909611604003x
      Issue No: Vol. 7, No. 1 (2017)
  • New record of Rhinopoma cystops Thomas, 1903 (Mammalia, Chiroptera) in
           arid southwestern Sahara of Algeria
    • Authors: M. Ahmim; R. Tahri
      Pages: 69 - 71
      Abstract: Abstract In January 2015, a colony of approximately 50 individuals of Rhinopoma cystops was found, and 10 Asellia tridens were netted in a cave of Béchar, Algeria, near the border with Morocco, southwestern Algerian Sahara. These two species were recorded previously in Algeria, but Rhinopoma cystops has been registered in Béchar for the first time. Therefore, information regarding the distribution and geographic variation of this species are also provided in the present study.
      PubDate: 2017-01-01
      DOI: 10.1134/s2079096117010024
      Issue No: Vol. 7, No. 1 (2017)
  • Soil temperature in Gobi ecosystems and factors influencing its change
    • Authors: V. P. Dedkov; T. I. Kazantseva; P. D. Gunin; Yu. I. Drobyshev
      Pages: 177 - 183
      Abstract: Abstract Data on the temperature of the underlying surface in the Gobi ecosystems (Mongolia) are presented. The role of the biotic factor in changes in the temperature of the underlying surface in the desert zone of Central Asia is shown to have grown.
      PubDate: 2016-07-01
      DOI: 10.1134/s2079096116030057
      Issue No: Vol. 6, No. 3 (2016)
  • Annual temperature regime of dark-chestnut soils in plains of various
           altitudinal zones of Central Mongolia
    • Authors: S. N. Bazha; S. V. Kontsov; D. Tuul
      Pages: 184 - 188
      Abstract: Abstract We have studied the annual temperature regime of dark chestnut soils by the example of three plots located at different altitudes in the Central Mongolia. It was shown that its altitudinal zonality is well pronounced in the air layer near the earth surface but is poorly seen in the soil horizons of well-lighted areas. The investigation of the annual temperature regime at different depths of soils located at various altitudes shows that the rise in the intensity of solar radiation and soil heating directly depends on the altitude. The study was performed as a part of a program of Joint Russian-Mongolian Comprehensive Biological Expedition and was supported by the Russian Geographical Society and the Russian Foundation for Basic Research, project Degradation of Landscapes in the Lake Baikal Region.
      PubDate: 2016-07-01
      DOI: 10.1134/s2079096116030045
      Issue No: Vol. 6, No. 3 (2016)
  • Effectiveness of some methods for restoration of degraded pastures in the
           desert–steppe zone of Mongolia
    • Authors: D. Tsognamsrai; Ch. Dugarjav
      Pages: 189 - 194
      Abstract: Abstract This article presents some results of experimental research on the restoration of degraded pastures in the desert–steppe zone of Bayandelger soum, Sukhbaatar aimag, in Mongolia. Within this objective, several experiments on the creation of pastures, including a forest shelter belt and their fencing, were carried out. The recovery processes were assessed based on different indices. The preliminary results show that, compared with the control plot, the number of plant species increased by 3.0 times and the number of their individuals increased by 4.3 times within the fenced plot, while in the pasture with a forest shelter, these indicators increased 4.5 and 5.8 times, respectively.
      PubDate: 2016-07-01
      DOI: 10.1134/s2079096116030094
      Issue No: Vol. 6, No. 3 (2016)
  • Additional sources of livelihood in the nomads of Central Asia
    • Authors: Yu. I. Drobyshev; S. -Kh. D. Syrtypova
      Pages: 220 - 225
      Abstract: Abstract The paper discusses gathering and fishing, which are believed to be minor but nevertheless very important sources of livelihood for the nomads that are representatives of the Turkic and Mongolian peoples of Central Asia. These sources provided food and medicinal raw materials to the nomads. The versatile usage of resources by the nomads in Central Asia is shown by examples taken mainly from historical works and contemporary works of ethnologists.
      PubDate: 2016-07-01
      DOI: 10.1134/s2079096116030069
      Issue No: Vol. 6, No. 3 (2016)
  • Estimation of Water Deficit under Climate Change and Irrigation Conditions
           in the Fergana Valley of Central Asia
    • Abstract: Abstract We evaluated changes in the deficit of irrigation water in the Fergana Valley of Central Asia under different scenarios of climate change and water management. The Fergana Valley is located within the Syr Darya River basin and is shared by Uzbekistan, Kyrgyzstan, and Tajikistan. We estimated the climate-related changes in irrigational water demand in the Fergana Valley in the 2020s, the 2050s, and 2080s. Considerably higher temperatures and a moderate change in precipitation lead to increasing potential evapotranspiration (PET), which nearly doubles the irrigation water demand by the 2080s. This is driving the request for a scientifically substantiated scheme of irrigation that takes into account the quality of soils and the ground water table, correction of the water consumption norms for different crops, and changes in the crop composition in favor of winter horticulture plantations and cereals.
      PubDate: 2016-10-01
      DOI: 10.1134/S2079096116040053
  • Salinization of Irrigated Soils in the Middle-Asian Region: Old and New
    • Abstract: Abstract The article provides information on the genesis and distribution of saline soils in the Turan Plain region of middle Asia. It is demonstrated that, prior to the start of active irrigation in the 20th century, the modern salt-accumulation process was developed mainly in naturally hydromorphic soils. On floodplains, the process was regulated by natural floods; it has not developed actively in automorphic soils. Due to irrigation, natural automorphic soils have been transformed into irrigated hydromorphic soils. This resulted in the activation of salt-accumulation processes, even with a drainage of 2.5–3 m deep. In the 21st century, new issues arose in the region: a freshwater deficiency; increased eolic salt transfer; deteriorating climatic, environmental, and social conditions.
      PubDate: 2016-10-01
      DOI: 10.1134/S2079096116040077
  • Diagnostics of Desertification with the Use of Water Retention Curve of
    • Abstract: Abstract Based on a study of processes developed upon desertification (salinization, solonetzization, and sand accumulation) in the soils of the Caspian Sea Lowland, it is shown that soil’s water retention capacity may be used as an integral parameter of all desertification trends. It is characterized by the water retention curve (WRC). The physical sense of the use of the WRC to characterize desertification consists in the fact that it shows the capability of soil to retain moisture and soil moisture mobility and availability for plants and thus characterizes the main edaphic factors, which limit biological productivity in natural ecosystems and the agroecosystems of arid regions. The soil WRC is a constant value without seasonal fluctuations, and this makes it universal in comparison with other soil parameters that undergo seasonal variations, thus making determination of the desertification rate difficult.
      PubDate: 2016-10-01
      DOI: 10.1134/S2079096116040090
  • Structure of the Flora of the Coasts in the Area of Influence of the
           Reservoirs on the South of the European Part of Russia
    • Abstract: Abstract The structure of taxa, biomorphology, ecology and ecological–cenotics groups present in the coastal flora of Krasnodar, Tsymlyansk, Veselovsky, and Proletarsky reservoirs, located in the south of the European part of Russia are characterized. Field data were obtained during the field work of the authors in 2004–2013, and a botanical database was formed on this basis. In light of the location of the investigated artificial lakes in different subzones of the steppe zone, the characteristics of the coastal flora can be considered as an ecological–geographical (zonal–regional).
      PubDate: 2016-10-01
      DOI: 10.1134/S2079096116040065
  • Climate Changes in the Aral Sea Region and Central Asia
    • Abstract: Abstract The long-term annual, semiannual, and seasonal dynamics of the main meteorological ecosystem characteristics (total atmospheric precipitation and average, maximum, and minimum air temperature) are analyzed for the Aral Sea region and central Asia by their trends for a long-term period of 70–125 years until 2014 with the use of the diurnal records from eight meteorological stations of the WMO (the Aral Sea, Chimbai, Tamdy, Torgai, Irgiz, Samarkand, Turkestan, Chardzhou). Based on an analysis of the combined humidity- temperature regime for the long-term period, the main trends of climate changes are established, the share of variations in each meteorological characteristic is estimated by the proposed relative coefficient of variations in meteorological characteristics (RCV), and the impact of the climate changes on the ecosystems is studied.
      PubDate: 2016-10-01
      DOI: 10.1134/S2079096116040028
  • Occurrence Pattern of Influenza A Virus, Coxiella burnetii , Toxoplasma
           gondii , and Trichinella sp. in the Pallas Cat and Domestic Cat and Their
           Potential Prey Under Arid Climate Conditions
    • Abstract: Abstract The possibility of the occurrence of seropositive reactions against four pathogens in two feline species (Pallas cat (Otocolobus manul) and domestic cat (Felis catus)) and six species of their potential prey was studied. Blood serum was analyzed for the presence of antibodies to the pathogens by enzyme immunoassay. The occurrence pattern of influenza A virus in manuls was the largest among tested pathogens (22%, n = 18). In this case, positive animals were not discovered among domestic cats. Antibodies against Coxiella burnetii were registered only in domestic cats (3.6%, n = 55). Antibodies against Toxoplasma gondii were found in wild and domestic animals: domestic cats (14.7%, n = 61), Pallas’ cats (9.1%, n = 18), and their prey (3.7%, n = 273). The occurrence of Trichinella sp. was comparatively low in domestic cats (1.6%, n = 61); among prey, antibodies to the parasite were found only in one species, the transbaikal hamster (Cricetulus pseudogriseus) (10.9%, n = 119).
      PubDate: 2016-10-01
      DOI: 10.1134/S2079096116040089
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