Results 1 to 10 of about 3,026 (159)

Pasture phytocomplexes of Pridonye: Ecological situation [PDF]

open access: yesE3S Web of Conferences, 2023
The purpose of the work is to establish the ecological situation in the pasture phytocomplexes of the Don basin. The objects of research were plant communities on floodplain sod-meadow granular soils and on the sands of the Ilovlinsky massif of the ...
Vlasenko Marina
doaj   +1 more source

A note on Lang's conjecture for quotients of bounded domains [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2021
It was conjectured by Lang that a complex projective manifold is Kobayashi hyperbolic if and only if it is of general type together with all of its subvarieties.
Sébastien Boucksom, Simone Diverio
doaj   +1 more source

Choosing the optimal method of stock assessment for Saccharina japonica in the northwestern Tatar Strait

open access: yesИзвестия ТИНРО, 2022
Experiments on comparing the methods for assessment of Saccharina japonica commercial stock were conducted in 2021. In total, 11 sites in the northwestern Tatar Strait southward from the Sovetskaya Gavan Bay, along the 44 km stretch of coastline between ...
A. A. Dulenin   +2 more
doaj   +1 more source

Quantitative assessment of crop residues in no-till technology according to remote sensing data and field soil cover survey

open access: yesБюллетень Почвенного института им. В.В. Докучаева, 2022
The key feature of the no-till technology is the preservation of crop residues on the soil surface. Crop residues quantitative assessment is an important task when introducing technology into production.
N. R. Ermolaev   +4 more
doaj   +1 more source

The structure of living ground cover under the various tree species canopy in the arboretum of V. N. Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences [PDF]

open access: yesСибирский лесной журнал, 2023
The living ground cover species composition under the various tree species canopy in the Arboretum of V. N. Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, in the city of Krasnoyarsk was studied.
I. A. Goncharova, M. A. Kirienko
doaj   +1 more source

Results of parallel independent visual evaluation of projective cover of the bottom during macrophyte assesment survey

open access: yesИзвестия ТИНРО, 2020
A simple and cost-effective method for macrophyte stock assessment as visual survey, was tested. It demonstrated good efficiency for counting of Saccharina japonica. The method is based on visual evaluation of SAV projective cover.
A. A. Dulenin
doaj   +1 more source

Assessment of the recreational transformation of the grass cover of public green spaces

open access: yesAgrology, 2021
The paper reveals regularities of grass projective cover variation depending on the level of recreational transformation of public green spaces, taking into account stand density and soil electrical conductivity.
N. V. Yorkina   +6 more
doaj   +1 more source

Semihollow-Lifting Modules and Projectivity

open access: yesمجلة بغداد للعلوم, 2022
Throughout this paper, T is a ring with identity and F is a unitary left module over T. This paper study the relation between semihollow-lifting modules and semiprojective covers. proposition 5 shows that If T is semihollow-lifting, then every semilocal
Anfal Hasan Dheyab   +2 more
doaj   +1 more source

Optimal methods for identification of dominants for submerged aquatic vegetation on a case of the northwestern Tatar Strait

open access: yesИзвестия ТИНРО, 2020
Dominant species are identified at infracenotic level for aquatic vegetation in the sublittoral zone of the northwestern Tatar Strait (Japan Sea) on the data collected in 2010–2019.
A. A. Dulenin
doaj   +1 more source

Peculiarities of the weed infestation of young paulownia (Paulownia tomentosa L.) stands

open access: yesКарантин і захист рослин, 2023
Goal. To study the weeding processes of young Paulownia tomentosa (Paulownia tomentosa L.) plantations for the further development of an effective weed protection system in the conditions of the Forest Steppe of Ukraine. Methods.
H. Nychkaliuk
doaj   +1 more source

Home - About - Disclaimer - Privacy