scholarly journals Aspects of the modern biogens runoff formation in the central part of the Russian Plain

2020 ◽  
Vol 163 ◽  
pp. 03003
Author(s):  
Sergey Dolgov ◽  
Nikolay Koronkevich ◽  
Elena Barabanova
Keyword(s):  
Water Bodies ◽  
Russian Plain ◽  
Nitrogen And Phosphorus ◽  
Runoff Formation ◽  
Biogenic Substances ◽  
Natural Factors ◽  
Cheboksary Reservoir ◽  
Annual Water ◽  
River Catchments ◽  
Kursk Region

The removal of biogenic substances (mineral nitrogen and phosphorus) from river catchments and its modern aspects of formation are considered. A rough estimate of the annual water-biogenic balance for the Linda and Kudma river catchments, which are the tributaries of the Cheboksary reservoir, and the river catchments of the Kursk region is presented. It is shown that the diffuse removal of biogens from river catchments exceeds their removal into water bodies with wastewater. Not only anthropogenic, but also natural factors play an important role in the biogens export to the rivers and waterbodies. Resent changes in biogens removal from catchments are assessed.

scholarly journals Special features of the contemporary biogens runoff formation in the central part of the russian plain.

2020 ◽  
pp. 136-145
Author(s):  
Keyword(s):  
Urban Areas ◽  
River Flow ◽  
Russian Plain ◽  
Nitrogen And Phosphorus ◽  
Nitrogen And Phosphorus Removal ◽  
The Road ◽  
Cheboksary Reservoir ◽  
Annual Water ◽  
River Catchments ◽  
Kursk Region

An attempt to evaluate the diffuse removal of mineral nitrogen and phosphorus from river catchments in the central part of the Russian Plain has been made. A rough esti-mate of the annual water-biogenic balance for the Linda and Kudma river catchments, which are the tributaries of the Cheboksary reservoir, and river catchments of the Kursk region is presented. It is shown that the diffuse removal of biogens from river catchments exceeds their removal into water bodies with wastewater, and in recent years (2008–2018) it reached 75–95 %. Along with the surface component of the runoff, the contribution of underground runoff and precipitation to this process is estimated. It is found that on the catchment area of the lateral tributary of the Cheboksary reservoir, the natural component in the diffuse removal of nutrients predominates comprising 55–75 % and more their total removal. Due to the intensive anthropogenic load in the Kursk region, the natural supply of biogens to the river catchments (30% nitrogen and 5% phosphorus) is much less than their anthropogenic input. The livestock business, poultry farming, urban areas (including the road network) and fertilization are the most significant sources of anthropogenic nutrient input. Resent chang-ers in nitrogen and phosphorus removal from river catchments are assessed. They have oc-curred mainly due to climatic changes in the water balance – due to decrease in the surface slope runoff and due to increase in the runoff of infiltration origin (underground runoff and vekhovodka). Annual biogens export from the Linda and Kudma river catchments has in-creased significantly (by 20–30 %). At the same time in the Kursk region, due to a reduction in the annual river flow (by 30–40 %), nutrient removal has decreased.

scholarly journals Special Features of the Contemporary Biogens Runoff Formation in the Central Part of the Russian Plain

2020 ◽  
pp. 136-145
Author(s):  
Keyword(s):  
Urban Areas ◽  
River Flow ◽  
Russian Plain ◽  
Nitrogen And Phosphorus ◽  
Nitrogen And Phosphorus Removal ◽  
The Road ◽  
Cheboksary Reservoir ◽  
Annual Water ◽  
River Catchments ◽  
Kursk Region

An attempt to evaluate the diffuse removal of mineral nitrogen and phosphorus from river catchments in the central part of the Russian Plain has been made. A rough esti-mate of the annual water-biogenic balance for the Linda and Kudma river catchments, which are the tributaries of the Cheboksary reservoir, and river catchments of the Kursk region is presented. It is shown that the diffuse removal of biogens from river catchments exceeds their removal into water bodies with wastewater, and in recent years (2008–2018) it reached 75–95 %. Along with the surface component of the runoff, the contribution of underground runoff and precipitation to this process is estimated. It is found that on the catchment area of the lateral tributary of the Cheboksary reservoir, the natural component in the diffuse removal of nutrients predominates comprising 55–75 % and more their total removal. Due to the intensive anthropogenic load in the Kursk region, the natural supply of biogens to the river catchments (30% nitrogen and 5% phosphorus) is much less than their anthropogenic input. The livestock business, poultry farming, urban areas (including the road network) and fertilization are the most significant sources of anthropogenic nutrient input. Resent chang-ers in nitrogen and phosphorus removal from river catchments are assessed. They have oc-curred mainly due to climatic changes in the water balance – due to decrease in the surface slope runoff and due to increase in the runoff of infiltration origin (underground runoff and vekhovodka). Annual biogens export from the Linda and Kudma river catchments has in-creased significantly (by 20–30 %). At the same time in the Kursk region, due to a reduction in the annual river flow (by 30–40 %), nutrient removal has decreased.

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 Methods of GI modeling of biogenic substances removal to the Gulf of Finland from forest vegetation cover

2020 ◽  
Vol 26 (2) ◽  
pp. 137-150
Author(s):  
Alexey Osipov ◽  
Georgy Osipov ◽  
Vasily Kovyazin
Keyword(s):  
Vegetation Cover ◽  
Catchment Area ◽  
Water Area ◽  
Forest Vegetation ◽  
Natural Vegetation ◽  
Water Bodies ◽  
Gulf Of Finland ◽  
Economic Activities ◽  
Biogenic Substances ◽  
The Gulf Of Finland

Biogenic pollution of water bodies and their eutrophication is one of the most serious environmental problems of our time. One of the sources of water pollution with biogenic substances is forests, which belong to the background sources of biogenic load. Currently available methods for assessing the removal of nutrients from the forest vegetation cover do not provide the desired results, which causes an urgent need for their improvement. This article describes the method developed by the authors of geoinformation modeling of removal of biogenic substances from the forest vegetation cover to water bodies, taking into account the spatial distribution of vegetation in the catchment area, its species composition and absorption of biogenic substances during their migration. The Eastern part of the Gulf of Finland was adopted as the object of testing of the developed method. this is due to the fact that eutrophication processes are actively manifested within its water area. The volume of the background biogenic load on the Gulf of Finland, formed during the decomposition of the fall of the natural vegetation cover in the catchment area, was determined based on the specific removal of biogenic substances from plant communities and their absorption during migration “plant community — water object”. The total background biogenic load on the eastern part of the Gulf of Finland, formed as a result of decomposition of natural vegetation cover, was 170.21 t/year for the northern catchment for nitrogen, 12.14 t/year for phosphorus, and 207.31 t/year for the southern catchment for nitrogen , and 15.68 t/year for phosphorus. The data obtained do not contradict the results of other authors who study the background biogenic load on the Gulf of Finland. The method can be effectively used in the development of measures to reduce the nutrient load on water bodies and planning of economic activities in catchments.

Nutrients Pollution in Water Bodies

2017 ◽  
pp. 21-42
Author(s):  
Ángeles Val del Río ◽  
Paula Carrera Fernández ◽  
José Luis Campos Gómez ◽  
Anuska Mosquera-Corral
Keyword(s):  
Climate Change ◽  
United States ◽  
Human Health ◽  
The United States ◽  
Water Bodies ◽  
Nitrogen And Phosphorus ◽  
International Conventions ◽  
Laws And Regulations

The pollution of water bodies by an excess of nutrients (N and P) is a worldwide problem with effects on the human health, ecosystems status, climate change, etc. To face with this important issue different regulations were promulgated by the countries, sometimes based on the results from international conventions and programmes. In this chapter, a review of the laws and regulations that affect the discharge of nitrogen and phosphorus is addressed, focused in the case of Europe and the United States. Finally, a brief explanation about international initiatives was performed to understand the global framework concerning nutrients pollution.

The Treatment Methods Review of Source-Separated Urine

2013 ◽  
Vol 295-298 ◽  
pp. 1701-1705 ◽  
Author(s):  
Lei Wang ◽  
Fu Guo Qiu
Keyword(s):  
Source Separation ◽  
Scarce Resource ◽  
Water Bodies ◽  
Sustainable Utilization ◽  
Separation System ◽  
Nitrogen And Phosphorus ◽  
Treatment Methods ◽  
Treatment Techniques ◽  
Research Outcomes ◽  
Struvite Precipitation

The urine-diverting toilet separates the urine and faeces and collects urine alone at the source. This technique can not only collect and make the most use of nutrients in urine, but also reduce the pollutants load on water bodies. Because of the valuable benefits of urine-source separation system, many researchers have done a lot of study in the global scope and obtained many results on this techniques. Currently studies focus on extracting struvite precipitation from urine which can synchronously recover nitrogen and phosphorus. Because phosphorus is a scarce resource and most phosphate resources are going to the bottom of sea. The recovery of struvite can realize the sustainable utilization of phosphorus resources. This paper reviews the latest research outcomes on urine diverting and treatment techniques.

scholarly journals Spatiotemporal evolution of ecosystem services in South China Karst and driving mechanism

2021 ◽  
Author(s):  
Shihao ZHANG
Keyword(s):  
Soil Conservation ◽  
Driving Forces ◽  
Driving Mechanism ◽  
Spatiotemporal Evolution ◽  
Nitrogen And Phosphorus ◽  
Rocky Desertification ◽  
Natural Factors ◽  
Increasing Trend ◽  
Main Factors ◽  
Phosphorus Export

To explore the above-mentioned problems, we analyzed the spatiotemporal evolution of ES (WY, SC, NPP, nitrogen and phosphorus export, HQ, CS, and Bio) in SCK, and combined policy (GFG), natural factors (MP, MT, PET, and VC) and human activities (PD, NL, GDP, FL, Forest, Grass, BL and UL) discussed the driving forces of ES changes in different landscapes. The results showed that from 1982 to 2018, WY, nitrogen Export, HQ, CS and Bio in SCK showed a decreasing trend, while SC and NPP showed an increasing trend. WY had a large decrease in all ES, a decrease of 13.23%; while NPP had a large increase, an increase of 19.16%. Comparing different landscape, the study found that SC, NPP, nitrogen and phosphorus export, CS and Bio in non-karst were higher than in karst, while HQ was the opposite. This study showed that natural factors (MP, MT, PET and VC) are the main factors of affecting ES in SCK, and found that the driving factors of ES indicators in different landscapes (karst and non-karst) are not the same. The study emphasized mountain enclosure for afforestation in karst suitable forests and barren hills to restore ES; fast-growing and pioneer species with a large amount of fine roots were planted in wasteland and rocky desertification areas to increase soil conservation services in the early ecosystems; through the policy of migration and employment, the human disturbance to nature can be reduced and habitat quality and biodiversity service can be improved.

scholarly journals Influence of Different Factors on Productivity of Reed Growths

2015 ◽  
Vol 1 ◽  
pp. 106
Author(s):  
Edgars Čubars ◽  
Gotfrīds Noviks
Keyword(s):  
Water Body ◽  
Total Concentration ◽  
Regression Equation ◽  
Water Bodies ◽  
Winter Period ◽  
Nitrogen And Phosphorus ◽  
Factors Influencing ◽  
Artificial Water Bodies ◽  
Growing Conditions ◽  
Artificial Water

The study shows results of research on reed productivity and on factors influencing this productivity. The research was performed during winter period from 2010 until 2012 in 23 natural and artificial water bodies of Latvia. The author of this study analyzed indexes of reed growth productivity and found regularities that statistically significantly (p less then 0,05) explain changes of reed productivity in water bodies depending on individual reed growing conditions in each water body. It is established that the productivity of reed growth depends on the amount of nutrients in the water of water body and that this productivity rises if the total concentration of nitrogen and phosphorus in the water is increased. The reed productivity is lower in clearer water. This parameter may be used in order to evaluate the amount of extractable biomass. The coherence is characterized by statistically significant (p less then 0,05) regression equation.

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