Contribution of Agricultural Sources to Nutrient Load Generated on the Russian Part of the Baltic Sea Catchment Area

Брюханов, А Ю; Kondratyev, Sergey; Тарбаева, В.М.; Vorobyeva, E. A.; Обломкова, Н. С.

doi:10.15544/rd.2017.058

Cited by 4 publications

(4 citation statements)

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“…Thus, following the formula (4), the losses through soil into the water bodies were 9777 t N yr −1 . These data correspond to [34]. From here, the possible volume of emission reduction by the use of relevant machines and equipment on large-scale agricultural enterprises was determined.…”

Section: Assessment Of Nitrogen Flows By the N Balance Calculation At The Regional Levelmentioning

confidence: 91%

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Assessment of Nitrogen Flows at Farm and Regional Level When Developing the Manure Management System for Large-Scale Livestock Enterprises in North-West Russia

et al. 2021

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Arranging efficient manure management is the major environmental challenge in livestock farming in the Leningrad Region, with manure nitrogen being regarded as the main pollution source. The study aimed to identify the baselines for taking integrated manure management decisions towards reducing nitrogen losses applying nitrogen surplus and nitrogen use efficiency (NUE) as indicators calculated at the regional and municipal district level. At the regional level, NUE was found to be 34% and N surplus was 103 kg ha−1. Eleven “environmentally friendly” districts had a mean NUE of 59%, a mean N surplus 39.6 kg ha−1 and a mean animal density 0.89 LSU ha−1. Four districts were identified as “hot spots”, with an animal density in the range from 2.6 to 67 LSU ha−1, NUE from 1 to 37% and N surplus from 87 to 3082 kg ha−1. A scenario was suggested for the redistribution of organic fertilisers between “hot spots” and “environmentally friendly” districts, allowing each district to increase the N surplus to the regional value. Nitrogen flows and measures improving NUE at the farm level through organisational activity and advanced practices were considered with the help of the “N input − N output” diagram and the example of the nitrogen flows on a pilot dairy farm.

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Section: Assessment Of Nitrogen Flows By the N Balance Calculation At The Regional Levelmentioning

confidence: 91%

“…Graphically, in a very simplified way, the maximum possible reduction of N losses soil is shown by the DE segment on the diagram. Currently, these values are not reliably determined [34].…”

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confidence: 99%

Assessment of Nitrogen Flows at Farm and Regional Level When Developing the Manure Management System for Large-Scale Livestock Enterprises in North-West Russia

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“…The more detailed description of the model and the example of its application can be found in the article of the authors of the model [5].…”

Section: The Ieepagrdlm Modelmentioning

confidence: 99%

Comparison of phosphorus leaching on different soils to tuning IEEPAgrDLM model

Subbotin

Брюханов

Ogluzdin

2018

Engineering for Rural Development

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Abstract. Laboratory study of phosphorus leaching from the plow horizon was conducted. The purpose of the study is to examine and compare the values of leaching phosphorus mass from the plow horizon in order to obtain the values of the coefficients for the IEEPAgrDLM model (Agricultural Diffuse Load Model by IEEPthe Institute for Engineering and Environmental Problems). The IEEPAgrDLM model allows to calculate the diffuse load on water bodies from agricultural fields depending on the field area, field soil nutrient content, type of soil by mechanical composition, doses of mineral and organic fertilizers, structure of crop rotation and distance from the field to the nearest water body. The influence of soil factors was studied. In the experiment 4 types of soil of different mechanical composition were used. Triplicate repeatability was used -for each type of soil, three vessels were used. The laboratory installation was a rack with vessels filled with soil. The vessels have a cover for introduction of water at the top and the filter element, bung with a glass tube and stopper at the bottom. During the study, once every two weeks, water was poured into the vessels and water which passed through the soil was taken. The volumes of water passed through the soil were measured and the concentrations of phosphorus and nitrogen in the water were analyzed. Based on the results of a six-month experiment (from April to October 2017), the values of the masses of nitrogen and phosphorus washed from the vessels were obtained. In this article, the results of the experiment on phosphorus are considered. The processing of laboratory data made it possible to calculate the coefficients reflecting the dependence of the mass of phosphorus leaching on the type of soils, which were used to update the coefficient values of the IEEPAgrDLM model. Keywords: phosphorus, soil, modelling, water protect, phosphorus leaching. IntroductionThe topic of water protection is currently very relevant. And there is a need for practical tools to assess the negative impact on water bodies at the farm level. One such tool is the IEEPAgrDLM model. This model (Agricultural Diffuse Load Model by IEEP -the Institute for Engineering and Environmental Problems) allows to calculate the diffuse load on water bodies from agricultural fields. This model was created on the basis of theoretical studies and initially its coefficients were obtained on the basis of literary sources. The goal of this study was to investigate the properties of the four most common soils in the Leningrad Oblast region in order to refine the corresponding coefficients of the model, which will improve the model's accuracy for the Leningrad Oblast region. Leningrad region is an area of the most intensive livestock production in the Russian part of the Baltic Sea region. The soil samples used in the experiment were taken from the arable horizon of actively used crop fields.

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“…IEEP methodology was used to estimate diffuse nutrient load from agriculture to waterbodies in the Russian part of the Western Dvina catchment area [5]. Annual nitrogen and phosphorous loads from agriculture production to the water objects in Pskov Region within Western Dvina catchment area are 76 ton of nitrogen and 11 ton of phosphorous.…”

Section: Introductionmentioning

confidence: 99%

Results of field studies on nitrogen and phosphorus input from agricultural production to selected water bodies in Western Dvina

Брюханов

Alexeev

Обломкова

et al. 2018

Engineering for Rural Development

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Abstract. In 2017 a field study of water bodies in Nevel and Usvyatsky Districts of Pskov Region was aimed to give qualitative and quantity estimation of the impact of local large-scale pig enterprises on the status of water bodies in the Western Dvina river basin. Water samples were taken and the flow was measured on the vulnerable areas and outside the farm impact area in accordance with an elaborated programme and methods of field measurements. Soil samples were collected from the fields, where liquid pig manure was applied. The results showed that on the local level, in the vicinity of these fields, the water bodies featured high levels of main manure pollution indicators -ammonium nitrogen and phosphorous. The concentration of ammonium varied from 4.4 to 32.7 mg·l -1 at these points that was several hundred times higher than that in water bodies in natural areas; the concentration of dissolved phosphorus varied from 0.11 to 0.23 mg·l -1 that was several times higher than the background values. The concentration of these elements was dropping down to the background level with the distance from the fields as the result of self-purification and dilution processes owing to natural conditions, associated mainly with the presence of wetlands.

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Contribution of Agricultural Sources to Nutrient Load Generated on the Russian Part of the Baltic Sea Catchment Area

Cited by 4 publications

References 1 publication

Assessment of Nitrogen Flows at Farm and Regional Level When Developing the Manure Management System for Large-Scale Livestock Enterprises in North-West Russia

Assessment of Nitrogen Flows at Farm and Regional Level When Developing the Manure Management System for Large-Scale Livestock Enterprises in North-West Russia

Comparison of phosphorus leaching on different soils to tuning IEEPAgrDLM model

Results of field studies on nitrogen and phosphorus input from agricultural production to selected water bodies in Western Dvina

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