scholarly journals CONTRIBUTION OF AGRICULTURAL SOURCES TO NUTRIENT LOAD GENERATED ON THE RUSSIAN PART OF THE BALTIC SEA CATCHMENT AREA

2018 ◽  
Author(s):  
Aleksandr BRIUKHANOV ◽  
Sergey KONDRATYEV ◽  
Veronica TARBAEVA ◽  
Ekaterina VOROBYEVA ◽  
Natalia OBLOMKOVA
Keyword(s):  
Agricultural Production ◽  
Climatic Conditions ◽  
Water Bodies ◽  
Assessment Procedure ◽  
Nutrient Load ◽  
Nutrient Input ◽  
Nitrogen And Phosphorus ◽  
Best Available Techniques ◽  
Environmental Measures ◽  
The Baltic

Agricultural production is one of the main sources of nitrogen and phosphorous inputs to the water bodies. Quantifying nutrient input from agriculture is needed both to develop effective environmental measures and to justify the technologies to be applied with due account for local natural and climatic conditions. Several related national studies have been conducted since 2015. Institute for Engineering and Environmental Problems in Agricultural Production (IEEP) methodology was used for this purpose. It determines the nitrogen and phosphorus content in the arable layer, including N and P amounts applied with mineral and organic fertilisers. Such factors as soil type and texture, the distance to the water bodies and the land use structure are used to estimate the nutrient input to the water bodies. In addition, the consistency of manure handling technologies with Best Available Techniques (BAT) principles is taken into account through introduction of relevant coefficients. Calculation results according to IEEP methodology were used in the follow-up general assessment of the nutrient load on the water bodies from different sources with the use of Institute of Limnology Load Model. Satisfactory correspondence between the assessment results and the values calculated using the monitoring data confirmed the adequacy of the above assessment procedure. Following its outcomes, the nutrient reduction potential of agricultural sources is approximately 10–20 %.

scholarly journals «St. Petesrburg Vodokanal» Experience in Developing Water Disposal Facilities as the Steps towards Transition to the Best Available Techniques

2020 ◽  
pp. 104-120
Author(s):  
Keyword(s):  
Sewage Sludge ◽  
The State ◽  
Wastewater Sludge ◽  
Nitrogen And Phosphorus ◽  
Wastewater Disposal ◽  
Best Available Techniques ◽  
Treatment Techniques ◽  
Sludge Incineration ◽  
The Baltic

The article presents the case study of wastewater disposal facilities development performed by the State Unitary Enterprise ‘Vodokanal of St. Petersburg’ which is regarded as one of the ‘green cases’ being implemented in the Russian Federation. It was emphasized that the Vodokanal of St. Petersburg ‘green case’ holds both sectoral and regional significance. Authors discuss approaches towards development and stage-by-stage implementation of reconstruction and modernization programs as to existing treatment facilities and for designing new ones. The implementation stages are considered from the standpoint of improving the environmental and technological policy of the enterprise. The implementation results for modern wastewater treatment techniques (mainly concerning nitrogen and phosphorus removal) are presented. The company’s experience on operating wastewater sludge incineration installations is described. The article demonstrates an urgent need for a detailed analysis of technological and economic risks and opportunities during strategic planning and designing St. Petersburg Water Supply and Disposal Scheme due to the transition to new BAT-based technological regulation in the field of environmental protection. The role of the best available techniques in fulfilling the requirements of the Convention on the Protection of the Marine Environment of the Baltic Sea Region (HELCOM) is emphasized. Authors describe technical solutions implemented by the State Unitary Enterprise ‘Vodokanal of St. Petersburg’ which allowed to remove the enterprise from HELCOM environmental «hot spots» list. Approaches towards further activities on sewage sludge and ash recycling are presented. The article formulates recommendations on improving BAT-related regulatory legal acts based on the results of the case study and notes the expediency for developing a national strategy in the field of using sewage sludge as a secondary resource.

Phytoplankton Production and Decomposition Characteristics in Water Bodies Differing in the Degree of Their Contamination by Inorganic Compounds of Nitrogen and Phosphorus

2019 ◽  
Vol 55 (3) ◽  
pp. 29-43 ◽  
Author(s):  
P. D. Klochenko ◽  
T. F. Shevchenko ◽  
I. N. Nezbrytskaya ◽  
Ye. P. Belous ◽  
Z. N. Gorbunova ◽  
...  
Keyword(s):  
Inorganic Compounds ◽  
Water Bodies ◽  
Phytoplankton Production ◽  
Nitrogen And Phosphorus

scholarly journals Eco-Efficiency and Human Capital Efficiency: Example of Small- and Medium-Sized Family Farms in Selected European Countries

2021 ◽  
Vol 13 (12) ◽  
pp. 6846
Author(s):  
Jan Polcyn
Keyword(s):  
Human Capital ◽  
Agricultural Production ◽  
Efficiency Index ◽  
European Countries ◽  
Family Farms ◽  
Work Hour ◽  
Capital Efficiency ◽  
Environmental Measures ◽  
The Relationship ◽  
Economic Measure

Small- and medium-sized family farms are places to live and sources of income for about half of the population. The aim of this analysis was to determine the relationship between eco-efficiency and human capital efficiency on small- and medium-sized family farms. The analysis was carried out using an economic measure (value of agricultural production per work hour calculated per hectare) and two synthetic measures (human capital and environmental measures). The synthetic measures were determined using the TOPSIS-CRITIC method by defining weights for variables used in the measures. The analysis covered five countries: Lithuania (960 farms), Moldavia (532 farms), Poland (696 farms), Romania (872 farms) and Serbia (524 farms). All of these countries are characterised by a high fragmentation of agricultural holdings. The analysis allowed us to formulate the following conclusions: eco-efficiency and human capital efficiency indices increased with area for small- and medium-sized family farms. An increase in the eco-efficiency index with an increase in farm area suggests that the smaller the farm area, the more extensive the agricultural production that was carried out. In addition, an increase in human capital efficiency with an increase in farm area indicates that there was inefficiency in the utilisation of human capital resources on the agricultural farms studied.

HAS PSYCHOLOGIC MALNUTRITION TAKEN THE PLACE OF RICKETS AND SCURVY IN CONTEMPORARY PEDIATRIC PRACTICE?

PEDIATRICS ◽  
1963 ◽  
Vol 31 (6) ◽  
pp. 909-918
Author(s):  
Nathan B. Talbot
Keyword(s):  
Sixteenth Century ◽  
Lemon Juice ◽  
Climatic Conditions ◽  
Northern Europe ◽  
Scientific Medicine ◽  
Pediatric Practice ◽  
Therapeutic Value ◽  
High Prevalence ◽  
The Baltic

WHILE MEDICAL HISTORIANS cannot provide us with accurate statistics concerning the incidence of rickets and scurvy in centuries past, they leave little room for doubt about the high prevalence of these disorders prior to the advent of modern scientific medicine. Thus, Castiglione has written that in the sixteenth century scurvy raged throughout northern Europe, in Scandinavia, on the shores of the Baltic, and in the interior of Germany. It is interesting to note, however, that Jacques Cartier, whose sailors had been ravaged by scurvy, learned in 1536 from the Indians that the malady could be cured by juices of the almeda tree. This was 200 years before James Lind demonstrated the curative effects of lemon juice in his treatise on scurvy published in 1753 and almost 400 years before ascorbic acid, which was isolated by Szent-Gyorgi in 1928, was recognized to be vitamin C by Waugh and King in 1932. Rickets, likewise, was occurring in a large portion of children prior to the discovery of the existence of vitamin D by Hess, Steinbock, and Windaus in 1918, of its therapeutic value by Mellanby in 1919, of the equivalent role of sunlight by Hess in 1921, and of the chemical composition of the vitamins by Windaus in 1922. But 200 years earlier Friedrick Hoffman had the answer to the control of this disease almost in hand. He attached much importance to climatic conditions as a factor in rickets, noting that if anything is specially powerful in producing this affliction, it is a surrounding atmosphere of cold foggy air. He cited as striking evidence of this the famous emporium of England, London, which he found to be specially apt to produce and foster this disease.

Determination of Nitrogen and Phosphorus Partitioning within Components of the Biomass in a High Rate Algal Pond: Significance for the Coastal Environment of the Treated Effluent Discharge

1992 ◽  
Vol 25 (12) ◽  
pp. 207-214 ◽  
Author(s):  
N. J. Cromar ◽  
N. J. Martin ◽  
N. Christofi ◽  
P. A. Read ◽  
H. J. Fallowfield
Keyword(s):  
Dry Matter ◽  
Coastal Environment ◽  
High Rate ◽  
Nutrient Input ◽  
Nitrogen And Phosphorus ◽  
Loading Rates ◽  
Effective Strategies ◽  
Treated Effluent ◽  
Algae And Bacteria

Two High-Rate Algal Ponds were operated over residence times of 4 and 6 days respectively, at three COD loading rates equivalent to 600, 350 and 100 kg ha−1d−1 from early September to late October 1991. Samples of pond N and P feed were analysed to obtain nutrient input values to the system. Pond filtrates were also analysed for soluble nutrients. The pond biomass was separated into constituent components of algae and bacteria. Following separation, the discrete fractions were analysed for dry matter, chlorophyll content, and paniculate carbon, hydrogen, nitrogen and phosphorus. Nitrogen and phosphorus balances were then calculated which were used to partition the nutrients into soluble and paniculate phases, and to further separate the paniculate phase into algal and bacterial components. The partitioning of these nutrients, responsible for eutrophication, enables the calculation of removal rates of N and P from the pond systems and makes possible more effective strategies for the removal of the nutrient-rich biomass from receiving water bodies.

scholarly journals Modelling the flow of nitrogen and phosphorus in Europe: from loads to coastal seas

1995 ◽  
Vol 31 (8) ◽  
pp. 141-145 ◽  
Author(s):  
A. H. W. Beusen ◽  
O. Klepper ◽  
C. R. Meinardi
Keyword(s):  
Surface Water ◽  
Western Europe ◽  
Human Impacts ◽  
Water Discharge ◽  
Surface Water Quality ◽  
Nitrogen And Phosphorus ◽  
The North ◽  
Surface Water Flow ◽  
The Baltic ◽  
Parameter Values

A model is described that aims at predicting surface water quality from N- and P-inputs on a European scale. The model combines a GIS-based approach to estimate loads, geohydrological data to define model structure and statistical techniques to estimate parameter values. The model starts with an inventory of sources of N and P: agriculture, wastewater and (for N) atmospheric deposition. Nitrogen flows are assumed to follow both surface- and groundwater flows, while for phosphorus only surface water flow is taken into account. A calibration of loss terms of N and P (assumed to be constants for the whole of Europe) by comparing total inputs to measured loads shows good agreement between observations and calculated river discharges. For the coastal seas of Europe concentrations are calculated by assuming conservative behaviour of N and P. Freshwater quality problems occur in western Europe with its intensive agriculture and high population density and locally in southern Europe where dilution is low due to low water discharge. In the marine environment the main problem areas are the Baltic and Black seas, with much lower impacts in the North and Adriatic Sea; in other coastal waters human impacts are essentially negligible.

scholarly journals Evaluation of Red Raspberry Cultivars Used for Breeding and Commercial Growing in the Baltic Region

2017 ◽  
Vol 71 (3) ◽  
pp. 203-210 ◽  
Author(s):  
Gunārs Lācis ◽  
Irita Kota-Dombrovska ◽  
Sarmīte Strautiņa
Keyword(s):  
Genetic Resources ◽  
Genetic Material ◽  
Climatic Conditions ◽  
Parent Material ◽  
Local Climate ◽  
Political Situation ◽  
Baltic Countries ◽  
Breeding Programmes ◽  
The Baltic ◽  
Local Advanced

Abstract The structure of raspberry cultivars and genetic resources in the Baltic countries have been influenced by the historical political situation in the 20th century and climatic conditions, especially winterhardiness. The genetic resources consist of some old European and American cultivars, but mostly of cultivars and hybrids bred in Russia. Currently, targeted breeding programmes are active only in Estonia and Latvia, which aim to develop winterhardy, disease-resistant cultivars, well adapted to the local climate. Therefore, parent material for hybridisation has been chosen from local advanced hybrids and introduced cultivars suitable to the regional climatic conditions. The aim of the study was to estimate the level of genetic diversity of Rubus germplasm and assess inter-specific and intra-specific relationships using phenotypical characterisation and molecular markers. Forty one Rubus genotypes were evaluated by 41 phenotypical traits and 15 previously described SSR markers. Both characterisation approaches discovered high correspondence with pedigree and a low level of diversity. A limited amount of the diversity of raspberry genetic material has been used in various breeding programmes, despite their broad geographical origin. The obtained results indicate the need for including local wild R. idaeus plant material into breeding programmes.

scholarly journals Influence of Mineral Fertilization and Liming on Maize Production on Argic Chernozem in the Burnas Plain

2021 ◽  
Vol 9 (1) ◽  
pp. 19
Author(s):  
Anca-Luiza Stănilă
Keyword(s):  
Agricultural Production ◽  
Soil Compaction ◽  
Climatic Conditions ◽  
Advanced Degree ◽  
Mineralization Process ◽  
Chemical Fertilizers ◽  
Mineral Fertilization ◽  
Maize Production ◽  
Number Of Factors ◽  
Medium Permeability

In order to elucidate some aspects regarding the content of nutrients in the soil or humus, the bioaccumulation and mineralization process of organic matter and correction of the soils reaction in the experimental field, within the agricultural holding SC Orhideea SRL Plopsoru, Locality Daia, Giurgiu County, research has been done with chemical fertilizers with NPK and liming - Ca(OH)2 on argic chernozem in maize culture from the Burnas Plain in different doses.Obtaining appropriate agricultural production on argic chernozems is limited by a number of factors such as relief, clay loam, low-medium permeability just below the plowed horizon advanced degree of soil compaction, located between 20-35 cm from the surface (plow sole) and climatic conditions.

scholarly journals Environmental Impact Statement on Kolleru Lake Water

2020 ◽  
Vol 8 (6) ◽  
pp. 2509-2512
Keyword(s):  
Surface Water ◽  
Lake Water ◽  
Urban Areas ◽  
Water Source ◽  
Agricultural Runoff ◽  
Climatic Conditions ◽  
Water Bodies ◽  
Surface Water Bodies ◽  
Alternative Water ◽  
The Impact

Catchments are most important for the purpose of practicing irrigation and recharging groundwater by collecting water during the rainy season so that the nearby land will be in surplus quantity of groundwater due to the continues percolation of water from the catchments, even the stored water in the form of catchments will be used as an alternative water source for other requirements apart from the irrigation practices such as for industries and other developmental activities taking place nearby the catchments. Year by year it was noticed that in the world scenario the pollutant concentration is keep on increasing especially water and air pollution due to the excessive load of population that is increasing from the rural to urban areas [10]. Coming to water pollution the major portion of pollution is increasing in the surface water bodies [4] due to various activities like surface runoff, intentionally releasing of untreated effluents from the nearby industries into the catchments [8] and the agricultural runoff etc, whatever the reason there is an immediate need and an emergency to monitor these catchments as the average rainfall is gradually decreasing due to the changing climatic conditions like global warming which leads to the reduced availability of water in the surface water bodies at the other side the existing water is being contaminated [5] by the activities of nearby people. The impact will be severe when the same situation continues in the days to come where the living standards of the people will be decreased at a notable level and the impact will be much more severe on the irrigated land which depends on the catchments. The study has done at Kolleru Lake in west godavari district, Andhra Pradesh. Collected Six Water samples from six locations around the lake for analysis [7] and then the results of the analysis compared with Central Pollution Control Board 1979and Indian standards 1982 guidelines for water in the surface water bodies to find out the present scenario of lake water.

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