bluuebunny/crossref_metadata_2025_split huggingface dataset:
Habitat heterogeneity and soil-vegetation relations in South of the Nile Delta, Egypt
Authors: Abd El-Ghani Monier , Abou-El-Enain Maged M. , Aboel-Atta A.-I. , Hussein Ethar A. 
Published: April 2020

Floristic composition and soil characters in representative habitats of the southern Nile Delta region in Qalyubia were analyzed in terms of habitat variations and species diversity. A total of 90 sites were surveyed and nineteen environmental factors were recognized in four main habitats : canal banks, cultivated lands, waste lands and sandy plains. Basic statistical treatments were established by using SPSS v. 10.0. The produced data were subjected to cluster analysis by using MVSP v. 3.1 ; indirect and direct ordination methods i. e. Detrended and Canonical Correspondence analyses, respectively by using CANOCO v. 4.5. A total of 164 species representing c. 7.7% of the Egyptian plant species were recorded and their life-form spectrum was identified. The majority of species were belonging to the families : Gramineae, Compositae, Leguminosae and Cruciferae. The floristic similarity between the recognized habitats showed a significant positive correlation between the canal banks and cultivated lands. Cynanchum acutum subsp. acutum, Cynodon dactylon, Phragmites australis and Pluchea dioscoridis
were of high ecological amplitude. Three main vegetation groups (i. e. weeds, halo/ helophytes and xerophytes) were recorded, and their controlling ecological factors were identified. Ordination analysis reveled that, the three groups were well segregated along the DCA axis 1, and were highly related to calcium carbonates, fertility and species diversity gradients in addition to the gradient of human interference. Canonical Correspondence Analysis (CCA) produced a similar pattern to that of the floristic Detrended Correspondence Analysis (DCA) and revealed that, the weed plants (i. e. vegetation group A) were highly associated with organic matter, phosphorus, potassium, saturation percentage, potassium cations and pH ; the Halo/ Helophytic plants (group B) with bicarbonates, sulphates, calcium, magnesium and sodium ; the xerophetic plants (group C) with CaCO 3 and pH.
Effects of abiotic stress on the germination of Pennisetum dichotomum
Authors: Chaffei Haouari Chiraz , Hajjaji Nasraoui Afef , Gouia Houda , Haouari Ali 
Published: April 2020

Seeds germination of Pennisetum dichotomum
was tested for three alternating temperatures (10, 25, 35°C) at different hydric potentials (0, – 1, – 3, – 7, – 10 and – 16 bar) applied with different concentrations of sodium chloride (0-3-6-12 or 15g/l of NaCl). The highest germination parameters (germination rate, germination percentage) were obtained with no osmotic potential (0 bar) under 25°C. Germination rate decreased progressively with increasing NaCl dose, and the lower value of this parameter was reached with 15g/l of NaCl. Compared to control (0g/l of NaCl) P. dichotomum seeds, the radical length (RL) and the hypocotyl length (HL) of the NaCl-treated ones were severely decreased at 12 and 15g/l concentrations. In another way, seedling growth of P. dichotomum was shown more sensitive than germination seeds to salinity stress.
Plant communities in the Tamanrasset region, Ahaggar, Algeria
Authors: Boucheneb Nacéra , Benhouhou Salima S. 
Published: April 2020

Several vegetation communities present in different wadi types are described from newly sampled regions in the Ahaggar region around Tamanrasset. The wadi types ranged from rocky substrates to more gravelly types through to deep sandy soils. An ordination applying correspondence analysis suggested altitude and soil substrate as the major ecological gradients at work. The results of this analysis enabled the identification of six associations. These are all described in detail focusing on the floristic list, their relation to the phytosociological framework proposed by Quézel (1965) and their ecological characteristics. Among the six associations, two are new : Rhus tripartita-Olea europaea subsp. laperrinei and Acacia raddiana-Salvadora persica communities. The former association is found in rocky wadis while the latter is typical of much larger wadi beds with a compact sandy ground. The four other associations were confirmed and described in regions not sampled before. These are Cassia aschrek-Panicum turgidum community – found generally on sandy-gravelly substrates, Leptadenia pyrotechnica-Chrozophora brocchiana community ranging from sandy-silty, sandy to sandy gravelly ground, the Tamarix aphylla-Farsetia ramosissima
community found on wide sandy wadis and the Tamarix gallica-Desmostachya bipinnata
typical of wadis where the water is close to the surface. The described plant communities are discussed in a wider geographical context.
Comparaison morphologique de deux souches de Monacrosporium salinum, champignon prédateur de nématode, isolées d’un agro-écosystème tunisien et omanais
Authors: Elfékih Samia , Kallel Sadreddine , Abdelwahed A. , Al-Hinai Sulaiman , B’Chir Mohamed Mouldi 
Published: April 2020

Monacrosporium salinum strain, MSO03, isolated from Omani horticultural agro-ecosystem in 2003, has been compared to patented strains, MST84, isolated in 1984 from Tunisian soils. Morpho-biometrical characteristics demonstrated that MSO03 was similar to MST84. However, conidia of MSO03 were longer as compared to those of MST84. Furthermore, MSO03 strain produce specifically single chlamydospores rounded, showing thick cell wall, while known M. salinum chlamydospores are flattened, in chains with thin cell wall. Consequently, the Omani strain MSO03 can resist to more severe stress conditions, such as drought and extreme temperature, occurring in Omani agro-ecosystems. Generally, the predatory antagonistic activity toward Tylenchulus semipenetrans
and Meloidogyne javanica was similar for both M. salinum strains.
Perspectives de phytostabilisation par Jatropha curcas L. des résidus miniers de la mine de Zaida (Haute Moulouya, Maroc)
Authors: El Himer Sarah , Bouabdli Abdelhak , Baghdad Bouamar , Saidi Naima 
Published: April 2020

Les performances de croissance de Jatropha curcas L. ont été étudiées sur divers substrats de la mine de plomb abandonnée de Zaida (Haute Moulouya, Maroc).
Jatropha curcas montre une bonne installation malgré les teneurs élevées en Pb, Cu, Zn et As dans les substrats expérimentaux. L’accumulation des éléments traces métalliques (ETM) dans les différents compartiments de Jatropha curcas dépend du type du substrat sur lequel elle est plantée (argile de découvrement, résidus miniers, sol témoin). Le faible taux de translocation des ETM confère à Jatropha curcas un grand pouvoir de phytostabilisation.
Approche syntaxonomique et écologique des formations à Genévrier thurifère (Juniperus thurifera L.) dans les Alpes françaises
Authors: Garraud Luc , Abdulhak Sylvain 
Published: April 2020

Le Genévrier thurifère (Juniperus thurifera L.) des montagnes de l’ouest de la Méditerranée a fait l’objet de plusieurs études phytosociologiques sur l’ensemble des Alpes françaises. Sa répartition dessine un croissant continu allant du sud du massif des Bauges à la Tinée épousant l’ancien front glaciaire, quelques stations colonisent les vallées internes de l’Oisans et la Haute Durance. Une analyse de 213 relevés phytosociologiques stratifiés réalisés sur l’ensemble de son aire alpine française, couplée à une analyse des conditions climatiques nous permet de proposer une cartographie et une synthèse syntaxonomique de ses populations. À l’étage de végétation supraméditerranéen inférieur, le Genévrier thurifère ne fait qu’effleurer la série du Chêne vert (Quercus ilex L.) de la classe du Quercetea ilicis et de l’alliance du Quercion ilicis, alors qu’à l’étage supraméditerranéen et méditerranéo-montagnard il domine dans l’aire du Chêne pubescent (Quercus pubescensWilld.) avec ou sans le Buis (Buxus sempervirens L.) qui correspond à la classe du Querco roboris-Fagetea sylvaticae et de l’alliance du Quercion pubescenti-sessiliflorae. Les formations primaires arbustives associées de la classe du Crataego monogynae-Prunetea spinosae et de l’alliance du Berberidion vulgaris se retrouvent sur l’ensemble de sa répartition alpine alors que dans l’étage montagnard des Alpes internes sèches, les pinèdes sylvestres à Genévriers spp.
appartiennent à la classe oro-méditerranéenne du Pino sylvestris-Juniperetea sabinae et de l’alliance du Juniperion thuriferae décrite d’Espagne et indiquée comme présente en France par le Prodrome des végétations de France (Bardat et al. 2004) et des cahiers d’habitats Natura 2000.
G-banding of the genus Rattus (rodent, Muridae) in Tunisia, occurrence of different banding of the sexual chromosome Y in the norvegicus species
Authors: Ben Ibrahim Aymen , Ben Salem Imed , Chetoui M'Barek , Nouira Saïd 
Published: April 2020

The two species of rats Rattus rattus and Rattus norvegicus are the only representatives of the genus Rattus in Tunisia. R. rattus is represented by a karyotye 2n = 38 to 39 chromosomes, it belongs to the oceanic type, whereas R. norvegicus
has a karyotype of 2n = 42 chromosomes. The G-bands produced by these two species are specific ; the ideogram representation of the chromosomes shows 136 bands for R. rattus and 189 bands for R. norvegicus, the number of the bands for each species is lower than those identified in Europe. Based on the comparison of the various G-banding profiles, we can confirm that for R. rattus, the integration of the acrocentrics pairs 4/ 7 and 11/ 12 by two robertsonian fusions and the two pericentric inversions of acrocentric pairs 1 and 9, who have infected the asian type, give respectively the two large metacentric pairs and the two subtelocentric pairs (1 and 9) characteristic of the oceanic type and the B chro- mosome is completely heterochromatic. For R. norvegicus, the change of the position between the dark and clear bands of the sexual chromosome Y is the remarkable opposite of the one identified in Europe.
La végétation vasculaire actuelle de l’île de Cavallo (archipel des Lavezzi, Corse) : analyse phytosociologique et phytocartographie
Authors: Paradis Guilhan , O’Deye-Guizien Kévin , Médail Frédéric 
Published: April 2020

Après une présentation des caractères physiques de l’île de Cavallo (topographie, géologie, géomorphologie, climat) et des impacts passés et actuels, sa végétation est décrite à l’aide de 28 tableaux de relevés phytosociologiques et d’une carte détaillée. La description des groupements est effectuée dans l’ordre suivant : (1) végétation des maquis (Myrto communis-Juniperetum turbinatae), des cistaies à Cistus monspeliensis et à Cistus salviifolius et des fruticées à Helichrysum italicum subsp. microphyllum ; (2) végétation des pelouses (à Brachypodium retusum, à Agrostis stolonifera, pelouses liées à l’urbanisation, tapis de Carpobrotus edulis) ; (3) végétation herbacée littorale (plages, dunes, rochers) ; (4) végétation aquatique et hélophytique (scirpaies à Bolboschoenus maritimus et à Schoenoplectus litoralis, jonçaies à Juncus subulatus, à Juncus maritimus et à Juncus acutus, groupement à Sarcocornia perennis, groupement à Cressa cretica, roselières à Phragmites australis, tamariçaies à Tamarix africana, groupements thérophytiques à Cotula coronopifolia,
à Elatine macropoda, à Salicornia patula, à Atriplex prostrata et à Symphyotrichum squamatum) ; (5) groupements de faible extension, à Helicodiceros muscivorus, à Nananthea perpusilla, à Asplenium marinum et à Asplenium obovatum, liés aux thors et aux chaos rocheux ; (6) végétation constituée d’espèces non autochtones de l’île. La conclusion présente l’inclusion syntaxonomique des groupements, un résumé géosymphytosociologique du paysage végétal et une hypothèse sur la dynamique de la végétation en distinguant les groupements permanents et les séries (sigmeta).
Les lichens et champignons lichénicoles de l’île de Cavallo (archipel des Lavezzi, Corse)
Authors: Gonnet Danièle , Gonnet Olivier , Gardiennet Alain , Roux Claude 
Published: April 2020

Les auteurs présentent un état des connaissances des lichens et des champignons lichénicoles non lichénisés de l’île de Cavallo puis donnent les résultats de leur étude, menée en 2014, qui a permis d’établir une liste de 109 taxons dont 31 nouvellement observés en Corse-du-Sud. Parmi ceux-ci, 3 lichens, Amandinea maritima, Catillaria servitii, Ramalina bourgeana et
Ramalina clementeana, ainsi qu’un champignon non lichénisé lichénicole, Polycoccum rinodinae, sont signalés pour la première fois en France. La présence de Ramalina bourgeana, anciennement mentionné sans localité en Corse en 1900 par Jatta, est confirmée. Cypheliopsis mediterranea, connu jusqu’ici seulement dans une seule station de France (presqu’île de Giens, Var, Crozals, 1924), a été observé plusieurs fois sur Cavallo et fait partie des taxons nouvellement observés en Corse-du-Sud. Seules les espèces intéressantes (typiques de l’étage thermoméditerranéen) ou nouvellement citées sont commentées. La liste complète des taxons identifiés à la suite des prospections de terrain est fournie en annexe.
Prospection et modalités d’échantillonnage pour capturer la diversité génétique des populations naturelles : cas du Myrtus communis L. au Maroc / Prospecting and sampling procedures to capture the genetic diversity of natural populations : case of Myrtus communis L. in Morocco
Authors: Wahid Nadya , Aabdousse Jamal , Chkhichekh Aissa , El Aboudi Ahmed , Lamhamedi Mohammed S. , Bakry Mustapha 
Published: April 2020

Des missions de prospection et de collecte de semences ont été organisées avec pour objectif la mise en place d’une banque de semences, en se basant sur une stratégie d’échantillonnage raisonnée maximisant la diversité génétique capturée. L’aire de répartition de Myrtus communis
au Maroc a été, en grande partie, parcourue et prospectée pour localiser les populations naturelles de cette espèce et décrire leur statut de distribution et leur état de conservation. Treize populations réparties dans des régions bio-géographiquement différentes ont été échantillonnées, à raison de dix à vingt individus par population, ainsi que près de 20 % du total des semences produites par individu. Cette structure de diversité génétique intra et interpopulations capturée constituerait un premier stock pour la mise en place d’une banque de semences.
Oro för klimatförändringarnas konsekvenser
Authors: Ekholm Sara 
Published: April 2020

Worrying about the consequences of climate change. Climate behaviour and the meaning of caring for future generations
The aim of the study was to see how care-worry about the consequences of climate change for future generations are experienced and handled by informants in a Swedish context. The term care-worry refer to an assembly of several approaches, such as empathy, care, responsibility, worry, and justice towards other people and coming generations. Care-worry is related to and initiates people’s attitudes and behaviours towards future risks. Empirically, the study is based on thematic interviews conducted in the year 2016 and deals with informants who explicitly expressed worries about climate change for future generations. All 24 informants turned out to be parents. From the material, four ideal types were depicted, which in different ways can illustrate the parents’ care-worry. Different climate behaviours also seem to be linked to these ideal types. The study as a whole shows that parents’ care-worries affect them in various ways to reduce their own climate footprint in the future. Many of them choose a more sustainable lifestyle for the sake of future generations.
АНАЛИЗ ВОДООБЕСПЕЧЕННОСТИ АПК КРАСНОДАРСКОГО КРАЯ
Authors: Bondarik I.G. 
Published: April 2020

В статье проведен анализ водообеспеченности агропромышленного комплекса Краснодарского края за 10 лет и на перспективу. Рассмотрены основные водопользователи и отрасли с наибольшим потреблением воды, такие как рисосеяние, животноводство и прудовые рыбоводческие хозяйства. Выявлено сокращение поливаемых земель в Краснодарском крае, снижение суммарного водозабора и оросительных норм. Выполнен прогноз водообеспеченности на перспективу до 2030 г. и предложены меры по оптимизации системы управления водным хозяйством.The article analyzes the water availability of the agricultural complex of the Krasnodar Territory over 10 years and for the future. The main water users and sectors with the highest water consumption, such as rice cultivation, animal husbandry and pond fish farms, are considered. The reduction an irrigated land in the Krasnodar Territory, the decrease in the total water intake and irrigation norms were identified. The forecast of water availability for the future until 2030 has been completed and measures have been proposed to optimize the water management system.
РЕГУЛИРОВАНИЕ КИСЛОТНОГО И ГУМУСОВОГО СОСТОЯНИЯ ДЕГРАДИРОВАННЫХ МЕЛИОРИРОВАННЫХ ЗЕМЕЛЬ НЕЧЕРНОЗЕМНОЙ ЗОНЫ ПРИ ИХ ВОВЛЕЧЕНИИ В СЕЛЬСКОХОЗЯЙСТВЕННЫЙ ОБОРОТ
Authors: Shevchenko V.A. , Soloviev A.M. , Bondareva G.I. , Popova N.P. 
Published: April 2020

Рассмотрено влияние известкования, систематического внесения различных видов удобрений и культур севооборота на изменение кислотного и гумусового состояния деградированных мелиорированных земель при их освоении за семилетний период.This study presents the influence of liming, systematic application of various types of fertilizers and crop rotation on the acid and humus state of degraded reclaimed lands during their development over a seven-year period.
ОБЩАЯ ХАРАКТЕРИСТИКА ПОДЗЕМНЫХ ВОД РЕСПУБЛИКИ КАЛМЫКИЯ И ВОЗМОЖНОСТИ ИХ КОМПЛЕКСНОГО ИСПОЛЬЗОВАНИЯ
Authors: Dedova E.B. , Shabanov R.M. , Dedov A.A. 
Published: April 2020

В статье приводится анализ и обобщение использования напорных подземных горизонтов на территории Республики Калмыкия. Показано расположение на территории республики 4-х крупных артезианских бассейнов (АБ): Ергенинского, Прикаспийского, Азово-Кубанского и ВосточноПредкавказского. Выполнен прогноз содержания запасов подземных вод с минерализацией от 0,4 до 10 г/л, пригодных для различных нужд народного хозяйства. Их объем составляет около 950 тыс. м3/сут., вт.ч. с минерализацией до 1,5 г/л 110 м3/сут. (около 12), до 3 г/л 309,5 м3/сут. (33) и более 3 г/л 518,1 м3/сут. (55).The article provides an analysis and generalization of the use of pressure underground horizons on the territory of the Republic of Kalmykia. It shows the location of 4 large artesian basins (AB) on the territory of the Republic: Yergeninsky, Caspian, Azov-Kuban, and Eastern PreCaucasian. The forecast of the content of underground water reserves with mineralization from 0.4 to 10 g/l, suitable for various needs of the national economy. Their volume is about 950 thousand m3/day., including mineralization up to 1.5 g/l-110 m3/day. (about 12 ), up to 3 g/l-309.5 m3/day. (33) and more than 3 g/l 518.1 m3/day (55).
ОБОСНОВАНИЕ ВЫБОРА ПИЛОТНОГО ВОДОСБОРА В ЗОНЕ ОСУШЕНИЯ ДЛЯ РАЗРАБОТКИ МЕТОДОЛОГИИ ОЦЕНКИ ДИФФУЗНОГО ЗАГРЯЗНЕНИЯ И МЕРОПРИЯТИЙ ПО ЕГО СНИЖЕНИЮ В БАССЕЙНЕ ВЕРХНЕЙ ВОЛГИ
Authors: Yashin V.M. 
Published: April 2020

В статье рассматриваются результаты исследований по обоснованию пилотного водосборного бассейна малой реки в зоне развития осушительных мелиораций и анализа имеющейся мониторинговой информации для последующей разработки экспертной системы и разработки различных сценариев антропогенных воздействий на пилотном водном объекте бассейна реки для сокращения диффузного загрязнения с сельскохозяйственных земель в бассейне ВолгиThe results of the research on the pilot catchment site of the small river in the drained lands as well as the analysis of the available monitoring information to develop the expert systems and different scenarios of the anthropogenic impacts to reduce diffuse pollution from agricultural lands in the Upper Volga basin are considered in the paper.
СВЕТОДИОДНОЕ ОСВЕЩЕНИЕ РАССАДЫ
Authors: Selmen V.N. 
Published: April 2020

Развитие северных и восточных регионов России требует разработки новых методов производства продуктов питания. Необходимо освоить круглогодичное конвейерное выращивание растительной продукции в закрытых помещениях при искусственном освещении. Опыты с рассадой овощей показали возможность выращивания под светодиодными лампами.The development of the northern and eastern regions of Russia requires the development of new methods of food production. It is necessary to master year-round conveyor growing of crop products in enclosed spaces under artificial lighting. Experiments with seedlings of vegetables showed the possibility of growing under LED lamps.
КАПЕЛЬНОЕ ОРОШЕНИЕ РЕПЧАТОГО ЛУКА: ИТОГИ 2019 г.
Authors: Vybornov V.V. 
Published: April 2020

Представлены данные по площадям посева репчатого лука в мире, России и Волгоградской области. Наибольшие площади посева лука в России отмечены в Волгоградской области - 6,48 тыс. га. Цель исследований -повышение эффективности управления водным и минеральным питанием репчатого лука за счет обоснования расчетного слоя увлажнения почвы и агротехнических приемов возделывания на светло-каштановых почвах для получения 110 т/га товарной продукции. Полевой опыт включает следующие варианты: водный режим почвы (фактор А), режим минерального питания (фактор В), перспективные гибриды лука (фактор С). Исследования проводятся на посевах репчатого лука ВалероF1 МанасF1 ПандероF1 УниверсоF1 БлустерF1 СедонаF1.Data on the areas of onion sowing in the world, Russia and the Volgograd region are presented. The largest areas of onion sowing in Russia were recorded in the Volgograd region of 6.48 thousand ha. The aim of the research is to increase the efficiency of water and mineral nutrition management of onions by substantiating the calculated soil moisture layer and agrotechnical methods of cultivation on light chestnut soils to obtain 110 t / ha of commercial products. Field experience includes the following options: soil water regime (factor A), mineral nutrition regime (factor B), promising onion hybrids (factor C). Research is conducted on onions onion Valero F1 Manas F1 Pandero F1 Universo F1 Bluster F1 Sedona F1.