scholarly journals HYDRO-MORPHOLOGICAL CHARACTERISTICS OF THE MOUNTAIN RIVERS OF THE ORDZHONIKIDZE DISTRICT, REPUBLIC OF KHAKASSIA (THE CASE OF THE PRAVAYA SARALA RIVERHEAD)

2017 ◽  
Vol 2017 (4) ◽  
pp. 43-47
Author(s):  
Татьяна Орешкова ◽  
Tatiana Oreshkova ◽  
Наталья Воротилина ◽  
Natalya Vorotilina ◽  
Марина Махрова ◽  
...  
Keyword(s):  
Morphological Characteristics ◽  
Water Bodies ◽  
Font Size ◽  
Mountain Rivers ◽  
Small Streams ◽  
The Village

<h1 style="margin: 0cm; margin-bottom: .0001pt; text-align: justify;"><span class="p"><span style="font-size: 8.0pt; color: #231f20; mso-ansi-language: EN-US; font-weight: normal;" lang="EN-US">The article gives a brief description of water bodies in the Ordzhonikidze district and describes the hydrography of the Pravaya Sarala river near the village of Priiskovaya. The objects of our study were the small streams that form the Pravaya Sarala. The research involved measurements and calculations of the parameters of the Central and the Lake tributaries. The article features the results of the measurements and their comparison, made with the help of generally accepted methods. The result was that the Lake tributary exceeds the Central one in all respects. Despite the fact that the slope of the Central tributary is greater than that of the Lake tributary, the average fl rate of the former is lower. It may be associated with the shallowness of some in parts of the Central tributary: the roughness and unevenness of the bottom of the riverbed with its boulders slow the movement of the water. According to the mountain rivers classifi the waterways in question refer to the category of small mountain rivers.</span></span></h1>

scholarly journals A new species of Alonella Sars, 1862 (Crustacea: Cladocera: Chydoridae) from the Ecuadorian Andes

Zootaxa ◽  
2017 ◽  
Vol 4290 (3) ◽  
pp. 581 ◽  
Author(s):  
MIGUEL ALONSO ◽  
ALEXEY KOTOV
Keyword(s):  
New Species ◽  
High Altitude ◽  
Morphological Characteristics ◽  
Water Bodies ◽  
A New Species

Several authors have pointed out that the Andean high altitude waters constitute a very interesting hotspot of biodiversity. Studies of these water bodies could significantly increase the number of Neotropical endemics among the Cladocera. One of the above mentioned taxa is described here as Alonella hampelae sp. nov. (Crustacea: Cladocera: Chydoridae). This new species belongs to the “excisa­clathratula” group, characterized by the carapace strongly reticulated and bearing fine striae within the cells of reticulation, but presents several specific morphological characteristics. The most outstanding is the evenly rounded posteroventral angle of the valves that lack any denticles, which is unique within the genus Alonella Sars, 1862. 

scholarly journals Preliminary dragonfly (Odonata) species list from the Pampa biome in Rio Grande do Sul, Brazil, with ecological notes for 19 new records for the State

2017 ◽  
Vol 17 (4) ◽  
Author(s):  
Samuel Renner ◽  
Eduardo Périco ◽  
Gerson Júnior Ely ◽  
Göran Sahlén
Keyword(s):  
Rio Grande ◽  
The State ◽  
Water Bodies ◽  
Rio Grande Do Sul ◽  
Species List ◽  
Surrounding Water ◽  
Pampa Biome ◽  
Small Streams ◽  
Biogeographical Region ◽  
Southern Half

Abstract An inventory of Odonata was carried out in the southern half of the state of Rio Grande do Sul, Brazil, in the Pampa biome. Originally, this biogeographical region was covered mostly by open fields and grassland, with sections of higher vegetation surrounding water bodies and rocky hills. Today the landscape is fragmented due to agricultural activities, mainly cattle farming, rice crops and forest plantations. Our survey was conducted in three municipalities from this region, between March 2015 and April 2016. Aiming at a general overview of the species composition, our sampling sites were selected on a wide basis, including lakes, bogs, temporary water bodies, small streams and river sections. Eighty two species of Odonata were collected comprising 40 genera and seven families. The dominant families were Libellulidae (56,1%), Coenagrionidae (24,5%) and Aeshnidae (7,3%). We found a diverse odonate assemblage, adding 19 new species records for the state of Rio Grande do Sul.

scholarly journals Water management in mountainous Jardhar Village, Chamba Block, Uttarakhand, India

2014 ◽  
Vol 3 (1) ◽  
pp. 93-100
Author(s):  
RK Kamble
Keyword(s):  
Water Management ◽  
Management Practices ◽  
Water Reservoir ◽  
Rain Water ◽  
Mountainous Area ◽  
Sustainable Utilization ◽  
Reservoir Water ◽  
Small Streams ◽  
Elevated Water ◽  
The Village

An attempt has been carried out to assess water management practices adopted by Jardhar villagers in Chamba block of Uttrakhand. The rain water during rainy season got collected in chahals (mountainous tanks) on top of mountains. The rain water which got collected in these structures percolates through mountains and forms number of small streams which were perennial in nature. The water from these streams were received in a small metal tank at the end of stream in the mountain and through a steel pipe this collected water was diverted and collected into a cement tank at an elevated location at the entrance of the village. From this elevated water reservoir water was distributed at various locations in the village through public stand posts. The sustainable utilization of water in this mountainous area paved way for availability of water throughout the year and thus can sustain the population in such a topographic region. This traditional water management in Jardhar village has set an example of water management which can be adopted in such terrains throughout the world. DOI: http://dx.doi.org/10.3126/ije.v3i1.9946 International Journal of Environment Vol.3(1) 2014: 93-100

scholarly journals Radiological Assessment of Reservoirs in Volyn Region that is Under Radioactive Contamination

2020 ◽  
Keyword(s):  
Heavy Metals ◽  
Radioactive Contamination ◽  
Scientific Information ◽  
Total Content ◽  
Ecological Monitoring ◽  
Water Bodies ◽  
Toxic Substances ◽  
Zinc Cadmium ◽  
Heavy Metal Salts ◽  
The Village

Purpose. To determine the content of radionuclides 137Сs, 90Sr and heavy metals in water bodies within the boundaries of settlements of Kamyn-Kashirsky, Lyubeshivsky and Manevychi administrative districts of Volyn region. Methods. During the expedition and laboratory work, standard methods of sampling, preparation and measurement of samples were used according to the current methods of radiochemical, radiospectrometric, ichthyological, hydrochemical, statistical analyses, etc. The determination of the total content of heavy metals was performed in laboratory conditions by conventional methods. Results. The research is based on its own analyses, as well as the stock materials of the Scientific Information Center for Water Management and Ecological Monitoring and Optimization of Water Use. Features of 137Сs, 90Sr radionuclides distribution in reservoirs (water, sediments, fish, birds) within the zone of radioactive contamination in Volyn Region are considered. The maximum concentrationі of 137Сs, 90Sr in the studied area were determined. The anthropogenic impact and excess of the maximum permissible concentrations and maximum permissible levels of toxic substances in the ecosystem links of certain water bodies of the partially contaminated region are identified. Conclusions. As a result of the study on the level of concentrations of 137Сs and 90Sr and heavy metals in water (within the boundaries of settlements) of the investigated area, it was found that reservoirs in village of Prylisne, village of Velyka Osnytsya, village of Cherevakha in Manevitsky District, village of Nuyno in Kamin-Kashirsky District and the village of Vetly in Lyubeshiv Administrative Distict are affected by the highest concentrations of 137Сs and 90Sr. The significant content of heavy metal salts is recorded in the reservoirs, namely in the village of Serhiv – lead, village of Prylisne in Manevytskyi District– zinc, cadmium; in the village Berezna Volia in Lyubeshiv District – copper; in the village of Nuyno in Kamin-Kashirsky District – lead.

scholarly journals METHODS OF IMPROVING THE EFFICIENCY OF MONITORING OF CHANNEL DEFORMATIONS OF MOUNTAIN RIVERS NEAR BUILT-IN SETTLEMENTS: ON THE EXAMPLE OF THE BUKTYRMA RIVER

2018 ◽  
Vol 44 (1) ◽  
pp. 28-35 ◽  
Author(s):  
Talgat TAUKENOV ◽  
Kulchikhan DZHANALEEVA ◽  
Zhuldyz YERZHANOVA
Keyword(s):  
Public Space ◽  
Morphological Characteristics ◽  
Control Measures ◽  
Mountain Rivers ◽  
Channel Processes ◽  
Channel Deformations ◽  
Geoinformation Systems ◽  
The Earth ◽  
River Bed ◽  
Scientific Justification

The results of research on the development of methods for increasing the efficiency of monitoring the channel deformations of mountain rivers using the methods of aerospace studies of the Earth and geoinformation systems are presented. Examples are given of estimating channel deformations, compiling morphological characteristics of the valley, floodplain and river bed, determining the scheme for the development of channel processes using public space imagery, scientific justification for erosion control measures.

scholarly journals Field Trip D (27&#160;September&#160;2018): characteristics and development of the Mesozoic&#8211;Tertiary weathering mantle and Pleistocene periglacial slope deposits in the Hintertaunus mountainous region

2018 ◽  
Vol 1 ◽  
pp. 53-77
Author(s):  
Peter Felix-Henningsen
Keyword(s):  
Raw Materials ◽  
Morphological Characteristics ◽  
Mountainous Region ◽  
Rhenish Massif ◽  
Climate Conditions ◽  
Gravel Beds ◽  
Upper Oligocene ◽  
Slope Deposits ◽  
Geochemical Analyses ◽  
The Village

Abstract. The Devonian slates and sandstones of the Rhenish Massif were subject to deep and intensive weathering under (sub)tropical climate conditions during the Cretaceous, the Paleogene and the Neogene, which caused the development of a weathering mantle (regolith) >100 m thick, consisting of kaolinitic saprolite and paleosols as well as correlated sediments. Especially the tectonic uplift of the Rhenish Massif and climate change during the Neogene and the Pleistocene led to a vast denudation of the weathering mantle. Only in less uplifted areas of the mountainous region did thick remnants of saprolites remain, and they were covered by Neogene sediments as well as Quaternary periglacial slope deposits. As the kaolinitic weathering products serve as raw materials for the clay industry, unique exposures are available in the Hintertaunus which offer impressive insights into the landscape development of the past ∼80 million years: the excursion proceeds from Giessen to Limburg and further south and southwest to the eastern and western Hintertaunus area. At site 1 near the village of Langhecke, characteristics and properties of the fresh, unweathered slates will be demonstrated. Excursion sites 2 and 3 are situated near the village of Eisenbach. In two open-cast clay mines, both a terrestrial and a semi-terrestrial saprolite from silt slate, covered by periglacial layers, are exposed. Properties and genesis will be discussed on the basis of morphological characteristics and mineralogical and geochemical analyses, as well as isovolumetric elemental mass balances. At site 4 a former basalt quarry near the village of Biebrich exposes a Paleogene Plinthosol above saprolite. The autochthonous paleosol was preserved below Upper Oligocene basalt tuff and periglacial layers. Site 5 is situated within a huge pit for mining of Upper Oligocene to Miocene quartz gravel near the village of Wasenbach. A Miocene Plinthosol developed from alluvial sediments on top of the gravel beds and was covered by periglacial slope deposits. At nearly all sites the basal layers of the periglacial cover beds consist of kaolinitic paleosol/saprolite material, which has an important influence on the site properties of the Holocene soils.

scholarly journals Outsized nutrient contributions from small tributaries to a Great Lake

2020 ◽  
Vol 117 (45) ◽  
pp. 28175-28182
Author(s):  
Robert J. Mooney ◽  
Emily H. Stanley ◽  
William C. Rosenthal ◽  
Peter C. Esselman ◽  
Anthony D. Kendall ◽  
...  
Keyword(s):  
Algal Blooms ◽  
Lake Michigan ◽  
Nutrient Loading ◽  
The United States ◽  
Ecological Impacts ◽  
Water Bodies ◽  
Nutrient Loads ◽  
Nutrient Inputs ◽  
Small Streams ◽  
Large Water

Excessive nitrogen (N) and phosphorus (P) loading is one of the greatest threats to aquatic ecosystems in the Anthropocene, causing eutrophication of rivers, lakes, and marine coastlines worldwide. For lakes across the United States, eutrophication is driven largely by nonpoint nutrient sources from tributaries that drain surrounding watersheds. Decades of monitoring and regulatory efforts have paid little attention to small tributaries of large water bodies, despite their ubiquity and potential local importance. We used a snapshot of nutrient inputs from nearly all tributaries of Lake Michigan—the world’s fifth largest freshwater lake by volume—to determine how land cover and dams alter nutrient inputs across watershed sizes. Loads, concentrations, stoichiometry (N:P), and bioavailability (percentage dissolved inorganic nutrients) varied by orders of magnitude among tributaries, creating a mosaic of coastal nutrient inputs. The 6 largest of 235 tributaries accounted for ∼70% of the daily N and P delivered to Lake Michigan. However, small tributaries exhibited nutrient loads that were high for their size and biased toward dissolved inorganic forms. Higher bioavailability of nutrients from small watersheds suggests greater potential to fuel algal blooms in coastal areas, especially given the likelihood that their plumes become trapped and then overlap in the nearshore zone. Our findings reveal an underappreciated role that small streams may play in driving coastal eutrophication in large water bodies. Although they represent only a modest proportion of lake-wide loads, expanding nutrient management efforts to address smaller watersheds could reduce the ecological impacts of nutrient loading on valuable nearshore ecosystems.

Сhrysaspis patens and Сh. patens × Сh. campestre (Fabaceae) іn the flora of Ukraine

2020 ◽  
Vol 12 (2) ◽  
pp. 282-289
Author(s):  
M Shevera ◽  
E Andrik ◽  
V Protopopova
Keyword(s):  
New Zealand ◽  
Morphological Characteristics ◽  
Asia Minor ◽  
General Area ◽  
Middle Europe ◽  
Characteristic Species ◽  
First Time ◽  
The Village ◽  
Distinguishing Features ◽  
Generative Organs

Data about distribution of Сhrysaspis patens (Schreb.) Holub (Trifolium patens Schreb.) and Сh. patens × Сh. campestre (Schreb.) Holub (T. patens × T. campestre Schreb.) (Fabaceae Lindl.) in the Ukrainian flora are analyzed. For the first time, according to LE and KW Herbarium materials, in 1990 and 1996, the species, Сh. patens, was noted by Yu. Roskov from the territory of Transcarpathian Region (Zakarpats’ka Oblast’): in the vicinity of the village of Malyi Bereznyi of Velykyi Bereznyі District (1954), and village Lazy (1958) of Uzhgorod Distr., later – between villages Nevytske and Kamianytsa (1970, 1972) of these district of the Region. One specimens from the Malyi Bereznyi (LE) was determined by Yu. Roskov as hybrid: Сh. patens × Сh. campestre. Before 2019 in Checklist and regional flora’s these taxa was not mentioned. Traditionally, the species is considered as part of the sect. Сhrysaspis of genus Chrysaspis Desv. or sect. Chronosemium Seringe subgen. Chronosemium (Seringe) Hossain of the genus Trifolium L. Taxonomically, the species is close to Сh. campestris. The main distinguishing features between these species are: morphological characteristics of vegetative and generative organs, mainly size and form of leaves and parts of flower. Taxonomic citations, morphological characteristics, primary and secondary areas, ecological and coenotic peculiarities of Ch. patens are given. The general area of the species is including Middle Europe, Mediterraneum and Asia minor; at the last years species was noted from the territory of Azerbaijan, Finland and New Zealand. The species grows on meadow, among shrubs, in wet and rocky places, on pastures, along roadsides and railway tracks, etc. In the South European country Ch. patens is a characteristic species of cl. Molinio-Arrhenatheretea Tuxen 1957. The florogenetic status of the species is discussed, in particular in the Transcarpathia region, as well as in the neighboring Hungary and Slovakia Ch. patens is considered as element of native fraction of the flora. At the northern parts of species distribution range, e.g. in Poland, Germany, etc. the species is a kenophyte. A schematic map of the distribution of the species in the Transcarpathia region is given.

scholarly journals Art. II.—Pujahs in the Sutlej Valley, Himalayas

1884 ◽  
Vol 16 (1) ◽  
pp. 13-30
Author(s):  
William Simpson
Keyword(s):  
The People ◽  
Melted Snow ◽  
Small Streams ◽  
To Come ◽  
The One ◽  
The Village ◽  
Rain Cloud

In the summer of 1860, I started from Simla to pass a few weeks at Chini, so as to avoid the rains. Chini is 16 marches about due east, which may be roughly put as being nearly 200 miles. Being just beyond the higher range of the Himalayan chain, the rain cloud is generally spent before it reaches the locality; still there is enough moisture to nourish vegetation, so that trees and flowers are plentiful. About two or three marches beyond this the rainless region commences, where trees are few and far between, and crops depend on the irrigation of small streams coming down from the melted snow of the higher peaks. Chini is about 10,000 feet above the sea, hence it is a most delightful climate in the summer; and few places in the Himalayas can present such a splendid view as the one looking across the Sutlej from the village. A bungalow had been erected at the time of Lord Dalhousie, and in it I put up for about two months; as I did my best when any of the people applied with ailments, they became friendly, and seeing me sketching, and taking an interest in their doings, they announced their ceremonies, and invited me to come and see them. I regret that my knowledge of the ordinary Hindostani was, at that time, but very small, so that I was unable to ask questions and collect information. from this cause my account of their Pujahs is far from complete.

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