Results 41 to 50 of about 148,148 (362)

Hydroecological limitations of the use of water resources of transboundary rivers of the steppe zone (through the example of the Ural and Tobol Rivers, Russia)

open access: yesЮг России: экология, развитие
To identify the main types of hydroecological restriction on the use of water resources and their spatial patterns in the Ural and Tobol river basins within the steppe zone.A comprehensive assessment of the water‐environmental situation in the regions of
Zh. T. Sivohip   +5 more
doaj   +1 more source

Advanced views regarding the post‐virgin land geographical space of Eurasia and Russia in the light of current land reforms

open access: yesЮг России: экология, развитие, 2022
Aim. To analyse the consequences of the virgin lands (1954‐1963) agrarian‐social megaproject, and of current land reforms. To elaborate contributions to the Russian post‐virgin land space development strategy.Material and methods.
S. V. Levykin   +4 more
doaj   +1 more source

Long‐Term Active Rather than Passive Restoration Promotes Soil Organic Carbon Accumulation by Alleviating Microbial Nitrogen Limitation in an Extremely Degraded Alpine Grassland

open access: yesAdvanced Science, EarlyView.
Active restoration increases soil organic carbon stocks by reducing microbial nitrogen limitation. Nitrogen availability promotes particulate to mineral‐associated organic carbon conversion by reducing microbial carbon use efficiency. Passive restoration has no effect on soil organic carbon stocks.
Jinchao Gong   +15 more
wiley   +1 more source

FRUIT AND BERRY CROPS IN THE ENVIRONMENTS OF THE BUZULUKSKY BOR NATIONAL PARK

open access: yesТруды по прикладной ботанике, генетике и селекции, 2018
Buzuluksky Bor is the name of the largest woodland in the steppe zone (86,600 ha) of Northern Eurasia, and the only one in the Transvolga steppe. Woody vegetation of this forest consists of conifers (70%) and broadleaf trees (30%).
E. Z. Savin   +5 more
doaj   +1 more source

Systematic Study of PDMS Optical Waveguides for Pressure Sensing Using Design of Experiments

open access: yesJournal of Applied Polymer Science, EarlyView.
A response surface methodology was used to systematically evaluate the impact of mix ratio and cure conditions on PDMS optical waveguide properties for pressure sensing. Mix ratio significantly influenced compression sensitivity, compressive modulus, and propagation loss, while cure temperature primarily affected refractive index.
Camila A. Zimmermann, Bora Ung
wiley   +1 more source

Linking changes of forage production and digestibility with grassland community assembly under nitrogen enrichment

open access: yesEcological Processes, 2021
Background Forage production is the fundamental ecosystem service of grasslands. Although forage consumption occurs at community level, most studies focused on species-level changes of forage quality.
Xiao-Tao Lü   +7 more
doaj   +1 more source

A late Pleistocene long pollen record from Lake Urmia, NW Iran [PDF]

open access: yes, 2008
A palynological study based on two 100-m long cores from Lake Urmia in northwestern Iran provides a vegetation record spanning 200 ka, the longest pollen record for the continental interior of the Near East.
Akhani, H   +10 more
core   +1 more source

Are there morpho‐acoustic patterns of adaptation in nonhuman primate ears? Testing the role of ecology and habitat in shaping ear morphology and function

open access: yesThe Anatomical Record, EarlyView.
Abstract Analysis of the variation in the bony structures of the inner and middle ear provides critical insights into functional morphology, as well as adaptive morphology across primates. In this study, we investigated whether ear morphology patterns are related to the ecological characteristics of species and their habitats to test two acoustic ...
Myriam Marsot   +4 more
wiley   +1 more source

Small mammals of the Mongolian mountain steppe region near Erdensant: insights from live-trapping and bird pellet remains. [PDF]

open access: yesMongolian Journal of Biological Sciences, 2005
Relatively little is known of the distribution, abundance and ecology of small mammals in Mongolia and as a result there is scant knowledge of the effects of environmental and anthropogenic factors on small mammal populations.
Joanne L. Isaac   +3 more
doaj   +1 more source

Temporal and Spatial Distribution Characteristics of Drought and Its Influence on Vegetation Change in Xilin Gol, China

open access: yesAtmosphere, 2022
Drought hinders economic and social growth in many areas of China, especially in livestock-dominated Xilin Gol League in Inner Mongolia. Most studies exclusively utilize rainfall to measure drought.
Zexun Chen   +5 more
doaj   +1 more source

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