bluuebunny/crossref_metadata_2025_split huggingface dataset:
АНАЛИЗ МНОГОЛЕТНЕЙ ДИНАМИКИ ВОДОПОЛЬЗОВАНИЯ НА ОРОСИТЕЛЬНЫХ СИСТЕМАХ КРАСНОДАРСКОГО КРАЯ
Authors: Naumenko N.O. , Buber A.A. 
Published: April 2020

В работе рассмотрены основные водопользователи бассейна реки Кубань - оросительные системы Краснодарского края. Приведена динамика использования водных ресурсов поверхностных и подземных вод за 1999 - 2018 гг. по следующим показателям: забор воды из источников, в том числе из поверхностных и подземных, их использование, водоотведение и безвозвратное водопотребление относительно природных водных объектов. Анализ водохозяйственной обстановки бассейна р. Кубань выявил ряд проблем, связанных с рациональным использованием водных ресурсов. Для устранения негативных последствий, возникших, в том числе, вследствие антропогенной деятельности человека, на последующих этапах работы будут предложены мероприятия по уменьшению дефицита воды на рисовых оросительных системах в маловодные периоды.The article considers the Kuban river basin main water users - Krasnodar region irrigation systems. Considered the surface and groundwater water resources use dynamics from 1999 to 2018 for the following indicators: water intake from sources, including surface and underground, their use, drainage and irrevocable water consumption relative to natural water objects. Analysis of the water management situation in the Kuban river basin revealed a number of problems related to the rational water resources use. In order to eliminate the negative consequences that have arisen, including as a result of human anthropogenic activity, measures to reduce the water deficit in rice irrigation systems in low-water periods will be proposed at the next stages of the work.
ИССЛЕДОВАНИЕ ПРОИЗВОДСТВА ОРГАНИЧЕСКОЙ ПРОДУКЦИИ РАННЕГО КАРТОФЕЛЯ НА ОСУШАЕМОЙ АЛЛЮВИАЛЬНОЙ ПОЧВЕ
Authors: Pylenok P.I. , Selmen V.N. , Rodkina V.N. 
Published: April 2020

Представлены результаты производства органической продукции раннего картофеля, возделываемого в трехпольном севообороте на аллювиальной почве с применением сидерата, гидратированного торфа и увлажнения дождеванием. В полевом опыте урожайность раннего картофеля выросла на 6,77 т/га, или в 1,3 раза. Для уровня продуктивности до 25т/га производству рекомендуется применение гидратированного торфа, для уровня более 30т/га - применением дополнительного увлажнения с обработкой клубней гидратированным торфом.The results of organic production of early potatoes cultivated in a three-field crop rotation on alluvial soil using siderate, hydrated peat and sprinkling moisture are presented. In the field experiment, the yield of early potatoes increased by 6.77 t / ha, or 1.3 times. For a productivity level of up to 25 t/ha, it is recommended to use hydrated peat for production, and for a level of more than 30 t/ha, it is recommended to use additional humidification with treatment of tubers with hydrated peat.
ИСПОЛЬЗОВАНИЕ АЭРОЗОЛЬНОГО ДОЖДЕВАНИЯ В ВОДООБОРОТНЫХ СИСТЕМАХ В УСЛОВИЯХ НЕЧЕРНОЗЕМНОЙ ЗОНЫ
Authors: Gubin V.K. 
Published: April 2020

В статье описываются водооборотные системы, обеспечивающие отведение, накопление и повторное использование дренажных вод. Рассмотрено несколько способов накопления дренажных вод: в прудах, в водоносных подземных горизонтах, в специальных колодцах, оборудованных трубами накопителями. Дана оценка возможности возмещения дефицита влаги в засушливый период года за счет накопленных дренажных вод. Наиболее эффективно дренажные воды используются при аэрозольном орошении.The article describes the water circulation systems providing drainage, accumulation and reuse of drainage water. Several methods of accumulation of drainage water are presented: in ponds, in aquifers, in special wells equipped with storage pipes. An assessment is given of the possibility of compensating for the moisture deficit in the dry period of the year by drainage water accumulation. The most effectively drainage water is used for aerosol irrigation.
РАЗРАБОТКА ЦИФРОВОЙ БАЗЫ ДАННЫХ ОБЪЕКТОВ МЕЛИОРАЦИИ С ВЫДАЧЕЙ АНАЛИТИЧЕСКИХ ОТЧЕТОВ
Authors: Enakaeva V.R. , Getman E.N. , Popova N.M. 
Published: April 2020

В статье дано описание и структура разработанной цифровой базы данных объектов мелиорации, на основе которой подготовлены и выпущены в электронном виде итоговые аналитические отчеты.The article describes the structure of the developed land reclamation objects digital database, on the basis of which final analytical reports are prepared and released in electronic form.
ОПТИМАЛЬНЫЕ ПРИЕМЫ ВОЗДЕЛЫВАНИЯ ПЕРСПЕКТИВНЫХ ГИБРИДОВ МОРКОВИ
Authors: Martynova A.A. 
Published: April 2020

В статье рассмотрено влияние основных урожаеобразующих факторов и совершенствование агротехники возделывания столовой моркови при капельном орошении, на рост и развитие корнеплодов моркови. На примере гибридов Каскад F1, Кордоба F1, Абако F1 и Тангерина F1.The article considers the influence of the main crop-forming factors and improvement of agricultural techniques for growing table carrots with drip irrigation on the growth and development of carrot root crops. Using the example of the Cascade F1, Cordoba F1, Abaco F1 and Tangerine F1 hybrids.
СОВЕРШЕНСТВОВАНИЕ ТЕХНОЛОГИИ ВОЗДЕЛЫВАНИЯ ОГУРЦА С ИСПОЛЬЗОВАНИЕМ ТОННЕЛЬНЫХ УКРЫТИЙ
Authors: Borodychev V.V. , Akulinina M.A. , Krutoyarov A.A. 
Published: April 2020

Дана оценка производства огурца по основным регионам России, включая Волгоградскую область. Обосновано выращивание огурца в пленочных теплицах тоннельного типа. Рассмотрены вопросы совершенствования агротехники возделывания огурцов при капельном орошении с использованием тоннельных укрытий для получения ранней продукции плодов до 90 т/га стандартного качества.The estimation of cucumber production is given for the main regions of Russia, including the Volgograd region. The cultivation of cucumber in film greenhouses of a tunnel type is justified. The issues of improving the agricultural technology of cultivating cucumbers during drip irrigation using tunnel shelters to obtain early fruit production up to 90 t / ha of standard quality are considered.
ТЕОРЕТИЧЕСКИЕ ПОДХОДЫ К ОПТИМИЗАЦИИ ВОДОПОЛЬЗОВАНИЯ НА РИСОСЕЮЩИХ АГРОМЕЛИОРАТИВНЫХ КОМПЛЕКСАХ НИЖНЕЙ КУБАНИ
Authors: Buber A.L. , Dobrachev Y.P. 
Published: April 2020

Анализ водопользования рисосеющих агрокомплексов в зоне Нижней Кубани свидетельствует о напряженной водохозяйственной ситуации, обостряющейся в маловодные годы. Возникающие дефициты водообеспечения наносят существенный ущерб всем водопользователям и особенно отраслям сельского хозяйства. Предлагаемые авторами подходы совершенствования водообеспечения и водопользования оросительных систем базируются на разработке интегрированной системы управления распределением водных ресурсов и продуктивностью агромелиоративного комплекса. Новая технологии управления строится на двух взаимосвязанных оптимизационных задачах, решаемых в одном пространственном и временном формате: с помощью динамической гидравлической модели формируются и изучаются оптимальные варианты подачи поливной воды от водоисточников до орошаемого поля, а модели продуктивности отражают влияние параметров водоподачи на урожайность культур. Гидродинамическое моделирование позволяет формировать режимы работы водохранилищ и гидроузлов таким образом, чтобы с одной стороны обеспечить командные высоты на водозаборах, а с другой, удовлетворить конфликтующие интересы водопользователей, в том числе сельхозпроизводителей. Выработка приемлемого управленческого решения реализуется методами многокритериального анализа и теории компромиссов с ориентацией на прогноз недобора урожая в зависимости от варианта вододеления.Analysis of water of rice-growing agricultural complexes use in the Lower Kuban region indicates a tense water management situation that worsens in low-water years. Occurring water supply deficits cause significant damage to all water users and especially to agricultural sectors. The approaches proposed by the authors to improve water supply and water use of irrigation systems are based on the integrated management system for the water resources distribution and productivity of the agro-reclamation complex development. The new management technology is based on two interrelated optimization problems that are solved in the same spatial and temporal format: optimal options for irrigation water supply from water sources to an irrigated field are formed and studied using a dynamic hydraulic model, and productivity models reflect the influence of water supply parameters on crop yields. Hydrodynamic modeling allows you to form reservoirs operating and hydroelectric facilities modes in such a way that, on the one hand, provide command heights at water intakes, and on the other, meet the conflicting interests of water users, including agricultural producers. The development of an acceptable management decision is realized by using the methods of multi-criteria analysis and the theory of trade-offs with a focus on the forecast of crop deficit depending on the water allocation option.
ПЕРСПЕКТИВЫ РАЗВИТИЯ ДРЕНАЖНЫХ СИСТЕМ В НЕЧЕРНОЗЕМНОЙ ЗОНЕ РФ
Authors: Kireycheva L.V. 
Published: April 2020

В статье выполнена оценка состояния осушительных систем в Нечерноземной зоне РФ. К настоящему времени, построенный до 90-го года прошлого столетия закрытый горизонтальный дренаж практически полностью вышел из строя как по причине отсутствия надлежащего ухода и эксплуатации, так и выработки своего ресурса и требует незамедлительного проведения реконструкции или нового строительства. На основе анализа мирового и отечественного опыта даны основные направления развития дренажных систем, включающие совершенствование конструкции дрены, обеспечивающей предотвращение заиления, заохривания и зарастания корнями, и создание саморегулирующих и управляемых дренажных систем.The paper devoted to the research of the conditions of the drainage systems in the Non-Chernozem zone of the Russian Federation. Nowadays the underground horizontal drainage built before the 90s last century, has almost completely damaged or deteriorated because of unproper maintenance and operation. On the other hand, drainage obsolescence is observed so its reconstruction or construction of new one is required. World and domestic experience analysis resulted in the development of the main directions of drainage systems improvement, including design of the drainage system, which prevents silting, overgrowing by crop roots, and provides to create self-regulating and managing drainage systems.
ОБЗОР И АНАЛИЗ МЕТОДОВ ОПРЕДЕЛЕНИЯ ВАРИАБЕЛЬНОСТИ ПЛОДОРОДИЯ ПОЧВ В РАМКАХ ПРЕЦИЗИОННОГО ЗЕМЛЕДЕЛИЯ
Authors: Pukhovskaya T.Yu. 
Published: April 2020

Показано преимущество технологий точного земледелия по сравнению с традиционными. Проведено обобщение и анализ методов определения вариабельности почвенного плодородия, как основы дифференцированного применения минеральных удобрений. На основе анализа существующих в прецизионном земледелии методов выявления контуров почвенного плодородия показано, что использование одновременно нескольких методов позволяет получить более объективную оценку и снизить затраты на агрохимическое обследование.The advantage of precision farming technologies in comparison with traditional ones is shown. Generalization and analysis of methods for determining the variability of soil fertility as the basis for differentiated application of mineral fertilizers. Based on the analysis of existing methods for detecting soil fertility contours in precision agriculture, it is shown that the use of several methods at the same time allows for a more objective assessment and reduces the cost of agrochemical surveys.
Faint and Fading Tails: The Fate of Stripped H i Gas in Virgo Cluster Galaxies
Authors: Taylor Rhys , Köppen Joachim , Jáchym Pavel , Minchin Robert , Palouš Jan , Wünsch Richard 
Published: April 2020

Abstract
Although many galaxies in the Virgo cluster are known to have lost significant amounts of H i gas, only about a dozen features are known where the H i extends significantly outside its parent galaxy. Previous numerical simulations have predicted that H i removed by ram pressure stripping should have column densities far in excess of the sensitivity limits of observational surveys. We construct a simple model to try and quantify how many streams we might expect to detect. This accounts for the expected random orientation of the streams in position and velocity space as well as the expected stream length and mass of stripped H i. Using archival data from the Arecibo Galaxy Environment Survey, we search for any streams that might previously have been missed in earlier analyses. We report the confident detection of 10 streams as well as 16 other less-certain detections. We show that these well match our analytic predictions for which galaxies should be actively losing gas; however, the mass of the streams is typically far below the amount of missing H i in their parent galaxies, implying that a phase change and/or dispersal renders the gas undetectable. By estimating the orbital timescales, we estimate that dissolution rates of 1–10 M

yr−1 are able to explain both the presence of a few long, massive streams and the greater number of shorter, less-massive features.
An Unbiased ALMA Spectral Survey of the LkCa 15 and MWC 480 Protoplanetary Disks
Authors: Loomis Ryan A. , Öberg Karin I. , Andrews Sean M. , Bergin Edwin , Bergner Jennifer , Blake Geoffrey A. , Cleeves L. Ilsedore , Czekala Ian , Huang Jane , Le Gal Romane , Ménard Francois , Pegues Jamila , Qi Chunhua , Walsh Catherine , Williams Jonathan P. , Wilner David J. 
Published: April 2020

Abstract
The volatile contents of protoplanetary disks both set the potential for planetary chemistry and provide valuable probes of defining disk system characteristics such as stellar mass, gas mass, ionization, and temperature structure. Current disk molecular inventories are fragmented, however, giving an incomplete picture: unbiased spectral line surveys are needed to assess the volatile content. We present here an overview of such a survey of the protoplanetary disks around the Herbig Ae star MWC 480 and the T Tauri star LkCa 15 in ALMA Band 7, spanning ∼36 GHz from 275 to 317 GHz and representing an order of magnitude increase in sensitivity over previous single-dish surveys. We detect 14 molecular species (including isotopologues), with five species (C34S, 13CS, H2CS, DNC, and C2D) detected for the first time in protoplanetary disks. Significant differences are observed in the molecular inventories of MWC 480 and LkCa 15, and we discuss how these results may be interpreted in light of the different physical conditions of these two disk systems.
CHAOS IV: Gas-phase Abundance Trends from the First Four CHAOS Galaxies
Authors: Berg Danielle A. , Pogge Richard W. , Skillman Evan D. , Croxall Kevin V. , Moustakas John , Rogers Noah S. J. , Sun Jiayi 
Published: April 2020

Abstract
The chemical abundances of spiral galaxies, as probed by H ii regions across their disks, are key to understanding the evolution of galaxies over a wide range of environments. We present Large Binocular Telescope/Multi-Object Double Spectrographs spectra of 52 H ii regions in NGC 3184 as part of the CHemical Abundances Of Spirals (CHAOS) project. We explore the direct-method gas-phase abundance trends for the first four CHAOS galaxies, using temperature measurements from one or more auroral-line detections in 190 individual H ii regions. We find that the dispersion in

relationships is dependent on ionization, as characterized by

, and so we recommend ionization-based temperature priorities for abundance calculations. We confirm our previous results that [N ii] and [S iii] provide the most robust measures of electron temperature in low-ionization zones, while [O iii] provides reliable electron temperatures in high-ionization nebula. We measure relative and absolute abundances for O, N, S, Ar, and Ne. The four CHAOS galaxies marginally conform with a universal O/H gradient, as found by empirical integral field unit studies when plotted relative to effective radius. However, after adjusting for vertical offsets, we find a tight universal N/O gradient of

dex/R

e
with σ
tot. = 0.08 for R

g
/R

e
< 2.0, where N is dominated by secondary production. Despite this tight universal N/O gradient, the scatter in the N/O–O/H relationship is significant. Interestingly, the scatter is similar when N/O is plotted relative to O/H or S/H. The observable ionic states of S probe lower ionization and excitation energies than O, which might be more appropriate for characterizing abundances in metal-rich H ii regions.
Dust Attenuation Curve for Local Subgalactic Star-forming Regions
Authors: Teklu Berzaf Berhane , Lin Zesen , Kong Xu , Wang Enci , Gao Yulong , Liu Qing , Hu Ning , Liu Haiyang 
Published: April 2020

Abstract
We compile a sample of about 157,000 spaxels from the Mapping Nearby Galaxies at the Apache Point Observatory (MaNGA) survey to derive the average dust attenuation curve for subgalactic star-forming regions of local star-forming galaxies (SFGs) in the optical wavelength, following the method of Calzetti et al. We obtain a

-independent average attenuation curve for spaxels with 1.1 ≤ D

n
(4000) < 1.3, which is similar to the one derived from either local starbursts or normal SFGs. We examine whether and how the shape of the average attenuation curve changes with several local and global physical properties. For spaxels with 1.2 ≤ D

n
(4000) < 1.3, we find no dependence on either local or global physical properties for the shape of the average attenuation curve. However, for spaxels with younger stellar population (1.1 ≤ D

n
(4000) < 1.2), shallower average attenuation curves are found for star-forming regions with smaller stellar mass surface density, smaller star formation rate surface density, or those residing in the outer region of galaxies. These results emphasize the risk of using one single attenuation curve to correct the dust reddening for all type of star-forming regions, especially for those with fairly young stellar population.
Localized Magnetic-field Structures and Their Boundaries in the Near-Sun Solar Wind from Parker Solar Probe Measurements
Authors: Krasnoselskikh V. , Larosa A. , Agapitov O. , de Wit T. Dudok , Moncuquet M. , Mozer F. S. , Stevens M. , Bale S. D. , Bonnell J. , Froment C. , Goetz K. , Goodrich K. , Harvey P. , Kasper J. , MacDowall R. , Malaspina D. , Pulupa M. , Raouafi N. , Revillet C. , Velli M. , Wygant J. 
Published: April 2020

Abstract
One of the discoveries of the Parker Solar Probe during its first encounters with the Sun is ubiquitous presence of relatively small-scale structures standing out as sudden deflections of the magnetic field. They were named “switchbacks” since some of them show a full reversal of the radial component of the magnetic field and then return to “regular” conditions. We carried out an analysis of three typical switchback structures having different characteristics: I. Alfvénic structure, where the variations of the magnetic field components take place while conserving the magnitude of the magnetic field; II. Compressional structure, where the magnitude of the field varies together with changes of its components; and III. Structure manifesting full reversal of the magnetic field, presumably Alfvén, which is an extremal example of a switchback. We analyzed the properties of the magnetic fields of these structures and of their boundaries. Observations and analyses lead to the conclusion that they represent localized twisted magnetic tubes moving with respect to surrounding plasma. An important feature is the existence of a relatively narrow boundary layer at the surface of the tube that accommodates flowing currents. These currents are closed on the surface of the structure and typically have comparable azimuthal and tube-axis-aligned components. They are supported by the presence of an effective electric field due to strong gradients of the density and ion plasma pressure. The ion beta is typically larger inside the structure than outside. The surface of the structure may also accommodate electromagnetic waves that assist particles in carrying currents.
Local Molecular Gas toward the Aquila Rift Region
Authors: Su Yang , Yang Ji , Yan Qing-Zeng , Gong Yan , Chen Zhiwei , Zhang Shaobo , Sun Yan , Zhang Miaomiao , Chen Xuepeng , Zhou Xin , Wang Min , Wang Hongchi , Xu Ye , Jiang Zhibo 
Published: April 2020

Abstract
We present the results of a ∼250 square degrees CO mapping (+26° ≲ l ≲ +50° and −5° ≲ b ≲ +5°) toward the Aquila Rift region at a spatial resolution of ∼50″ and a grid spacing of 30″. The high dynamic range CO maps with a spectral resolution of ∼0.2 km s−1 display highly structured molecular cloud (MC) morphologies with valuable velocity information, revealing complex spatial and dynamical features of the local molecular gas. In combination with the MWISP CO data and the Gaia DR2, distances of the main MC structures in the local ISM are well determined toward the Aquila Rift region. We find that the total MC mass within 1 kpc is about ≳4.1 × 105

in the whole region. In fact, the mass of the molecular gas is dominated by the W40 giant molecular cloud (GMC) at ∼474 pc (∼1.4 × 105

) and the GMC complex G036.0+01.0 at ∼560–670 pc (∼2.0 × 105

), while the MCs at ∼220–260 pc have gas masses of ∼102–103

. Interestingly, an ∼80 pc long filamentary MC G044.0–02.5 at a distance of ∼404 pc shows a systematic velocity gradient along and perpendicular to the major axis of the filament. The H i gas with enhanced emission has similar spatial morphologies and velocity features compared to the corresponding CO structure, indicating that large-scale converging H i flows are probably responsible for the formation of the MC. Meanwhile, the long filamentary MC consists of many sub-filaments with lengths ranging from ∼0.5 pc to several pc, as well as prevalent networks of filaments in other large-scale local MCs.
Comprehensive Data for Depolarization of the Second Solar Spectrum by Isotropic Collisions with Neutral Hydrogen
Authors: Derouich M. 
Published: April 2020

Abstract
Interpretation of the second solar spectrum (SSS) requires a complete determination of the depolarizing effect due to collisions with neutral hydrogen. In this paper, we provide comprehensive collision data for simple atoms, complex atoms, and atoms with hyperfine structure. Grids of interaction potentials were computed for a large range of effective quantum numbers n* that characterize states of hypothetical simple atoms. After that, the Schrödinger equation is solved to calculate the collisional transition matrix for each value of n*. Thus, we constructed a database of collisional polarization transfer and depolarization rates of all p-, d-, and f-states of simple atoms. The obtained results are fitted to deduce 48 variation laws, leading to the determination of all depolarization and polarization transfer rates of solar simple atoms. These laws are general and can be applied for any simple atom. We demonstrate how these laws can be used to efficiently obtain the collision rates associated with complex atoms, as well as with atoms with hyperfine structure. We show how the reader may use the variation laws to reproduce all new (de)polarization rates of this paper, as well as all rates of our previous papers published since 2003. Accuracy of our variation laws is discussed. Our analytical laws can be easily implemented in the numerical models developed to simulate the formation of the SSS.