Perspectives of the Reduction of Nutrient Export from River Watersheds through the Introduction of Best Available Technologies for Agricultural Production: Based on Modeling Results

The authors noted the transboundary nature of anthropogenic impact on the environment, including that on water bodies, which needs to be studied in an international format. (Research purpose) To determine the water state of the Urpolanjoki River in the Mikkeli area in Finland and the Luga River in Russia in order to prepare proposals for improvement. (Materials and methods) Water quality was specified by 11 parameters by sampling and analyzing them in the laboratory. Additionally, 1South-Eastern Finland University of Applied Sciences carried out online monitoring using the YSI 6920-V2 continuous water probe. The authors used standard methods of processing statistical, field data. (Results and discussion) The authors revealed good, stable during the entire monitoring period, water quality in the Urpolanjoki River. The authors showed that the water quality in the Luga River deteriorates downstream, in particular, due to the agricultural and livestock farms’ activities near the river basin. Thus, the Kjeldahl nitrogen and total phosphorus content at the upstream point is 10.8 milligrams and 119 micrograms per liter, respectively, and at the downstream point, it is only 1.6 milligrams and 28 micrograms, respectively. (Conclusions) It was determined that the analyzed indicators correspond to the category of good quality: the level of water oxygen saturation fluctuated within 88.76-117.83 per cent during the monitoring period; the color was 30 milligrams per liter on the platinum-cobalt scale, which means a low humus content in the water; the presence of solids in the water ranged from 1.1 to 2.4 milligrams per liter; the total phosphorus content in water is below 9.2 micrograms per liter, that is, within the normal limits. During the monitoring of the Luga River, a clear influence of nearby agricultural enterprises and settlements was detected.

show abstract

unclassified

Results of the Water Quality Study Within the Luga-Balt-2 International Project

et al. 2021

View full text Add to dashboard Cite

show abstract

“…создавать водно-болотные угодья для естественной очистки стоков (рисунок 7); -установить локальные очистные сооружения в частных домовладениях, распроложенных выше по течению впадающих в реку ручьев [14][15][16][17][18].…”

unclassified

Water quality research within the framework of the international project LUGA-BALT-2

2021

AGROINFO-2021 Proceedings

View full text Add to dashboard Cite

“…агропредприятия использовали не более 30% органики. Такой низкий уровень дестабилизирует агроэкосистемы, повышает диффузную нагрузку на водные объекты вблизи животноводческих комплексов: до 150 кг/га азота и до 20 кг/га фосфора [9,10]. Отсутствие возврата органики в регионы, выращивающие растениеводческую продукцию и корма для животных, снижает плодородие почв.…”

unclassified

Analysis and Solutions to Environmental Problems in Livestock Farming

et al. 2021

View full text Add to dashboard Cite

The intensifi cation of agricultural production has led to the disruption of nutrient cycles in agroecosystems. In livestock farming, one of the key problems is the low degree of using secondary resources (organic fertilizers based on manure and manure). (Research purpose) To substantiate the basic principles of assessing the agroecosystem environmental sustainability and to develop engineering methods for ensuring environmental safety in livestock farming. (Materials and methods) To solve the problems of agroecological assessment, eff ective technology choice and intelligent system creation, the following indicators were used: 1. specifi c density of animals (mainly for macro-assessment); 2. nutrient balance (the diff erence in the amount of nitrogen available in the formed organic fertilizers with environmentally safe consumption); 3. nitrogen losses during the disposal of organic waste from livestock farming; 4.the eff ectiveness of implementing the best available techniques (BAT). (Results and discussion) Using the assessment of indicators 1 and 2 in the case of the Leningrad region, it was revealed that 3 districts are classifi ed as territories with an excessive risk to the environment, 1 district is classifi ed as a territory with a high risk, 5 districts – with an acceptable risk, and 8 districts – with a low risk to the environment. To solve problems in areas with excessive and high load, we conducted an assessment on indicators 3 and 4, which allowed us to explore technical solutions and select the BAT to reduce the environmental burden. The obtained results showed that among the main technical solutions in the fi eld of organic waste management of livestock farming are biofermentation and the introduction of liquid organic fertilizers. Biofermentation in special chambers can reduce emissions of polluting gases by more than 2 times, and speed up the processing process by more than 60 times. To work with liquid organic fertilizers, intelligent machines with low-emission working bodies have been developed to reduce nitrogen losses during application by up to 50 percent. To solve the problems of agricultural monitoring and engineering solution management, a digital system has been developed that allows to model scenarios of technological development and their impact on the agroecosystem environmental sustainability. (Conclusions) The results obtained allow us to systematically analyze the problems of agroecosystem environmental sustainability and propose specifi c technical and optimization solutions for livestock farming.

show abstract

Perspectives of the Reduction of Nutrient Export from River Watersheds through the Introduction of Best Available Technologies for Agricultural Production: Based on Modeling Results

Cited by 8 publications

References 14 publications

Results of the Water Quality Study Within the Luga-Balt-2 International Project

Results of the Water Quality Study Within the Luga-Balt-2 International Project

Water quality research within the framework of the international project LUGA-BALT-2

Analysis and Solutions to Environmental Problems in Livestock Farming

Contact Info

Product

Resources

About

Perspectives of the Reduction of Nutrient Export from River Watersheds through the Introduction of Best Available Technologies for Agricultural Production: Based on Modeling Results

Cited by 8 publications

References 14 publications

Results of the Water Quality Study Within the Luga­-Balt-­2 International Project

Results of the Water Quality Study Within the Luga­-Balt-­2 International Project

Water quality research within the framework of the international project LUGA-BALT-2

Analysis and Solutions to Environmental Problems in Livestock Farming

Contact Info

Product

Resources

About

Results of the Water Quality Study Within the Luga-Balt-2 International Project

Results of the Water Quality Study Within the Luga-Balt-2 International Project