Interactive effects of natural and anthropogenic factors on heterogenetic accumulations of heavy metals in surface soils through geodetector analysis

2021 ◽  
pp. 147937
Author(s):  
Sha Huang ◽  
Lishan Xiao ◽  
Youchi Zhang ◽  
Lin Wang ◽  
Lina Tang
Keyword(s):  
Heavy Metals ◽  
Interactive Effects ◽  
Anthropogenic Factors ◽  
Surface Soils ◽  
Natural And Anthropogenic Factors

Phytoplankton of cold-water lake ecosystems under the influence of natural and anthropogenic factors

2021 ◽  
pp. 42-49
Author(s):  
Andrey N. Sharov
Keyword(s):  
Heavy Metals ◽  
Cold Water ◽  
Arctic Lakes ◽  
Water Bodies ◽  
The Arctic ◽  
Anthropogenic Factors ◽  
Large Lakes ◽  
Arctic Water ◽  
The North ◽  
Natural And Anthropogenic Factors

Based on the study of the spatio-temporal aspects of the development of phytoplankton in the lakes of the North and North-West of the European territory of Russia (large lakes – Imandra, Onega and Chudsko-Pskovskoye and small lakes of the Arctic and Subarctic), the features of its structure and dynamics under the influence of natural and anthropogenic factors (eutrophication, heavy metal pollution, acidification, thermification). The species composition and quantitative characteristics of phytoplankton of large lakes of the North of Russia, small arctic lakes and lakes of subarctic regions are studied. It has been shown that diatoms predominate in arctic water bodies according to species diversity, and green and diatoms predominate in boreal ones. By biomass, diatoms dominate mainly in all cold-water lakes, with the exception of small arctic lakes, where golden algae lead. The features of the reorganization of phytoplankton in response to the action of anthropogenic factors are revealed. It is proved that in the northern water bodies the complex action of heavy metals and nutrients does not lead to inhibition of phytoplankton, and the effect of acidification in combination with heavy metals enhances the toxic effect of the latter. A feature of the response to acidification is an increase in the variability of the dynamics of the biomass of phytoplankton. It has been shown that in different types of lakes of East Antarctica under severe climate conditions under light and biogenic limitation, redistribution of autotrophic components in the formation of the biota of water bodies occurs: against the background of a decrease in the abundance and diversity of phytoplankton, the role of microphytobenthos and periphyton increases.

Phytoplankton of cold-water lake ecosystems under the influence of natural and anthropogenic factors

2021 ◽  
pp. 42-49
Author(s):  
Andrey N. Sharov
Keyword(s):  
Heavy Metals ◽  
Cold Water ◽  
Arctic Lakes ◽  
Water Bodies ◽  
The Arctic ◽  
Anthropogenic Factors ◽  
Large Lakes ◽  
Arctic Water ◽  
The North ◽  
Natural And Anthropogenic Factors

Based on the study of the spatio-temporal aspects of the development of phytoplankton in the lakes of the North and North-West of the European territory of Russia (large lakes – Imandra, Onega and Chudsko-Pskovskoye and small lakes of the Arctic and Subarctic), the features of its structure and dynamics under the influence of natural and anthropogenic factors (eutrophication, heavy metal pollution, acidification, thermification). The species composition and quantitative characteristics of phytoplankton of large lakes of the North of Russia, small arctic lakes and lakes of subarctic regions are studied. It has been shown that diatoms predominate in arctic water bodies according to species diversity, and green and diatoms predominate in boreal ones. By biomass, diatoms dominate mainly in all cold-water lakes, with the exception of small arctic lakes, where golden algae lead. The features of the reorganization of phytoplankton in response to the action of anthropogenic factors are revealed. It is proved that in the northern water bodies the complex action of heavy metals and nutrients does not lead to inhibition of phytoplankton, and the effect of acidification in combination with heavy metals enhances the toxic effect of the latter. A feature of the response to acidification is an increase in the variability of the dynamics of the biomass of phytoplankton. It has been shown that in different types of lakes of East Antarctica under severe climate conditions under light and biogenic limitation, redistribution of autotrophic components in the formation of the biota of water bodies occurs: against the background of a decrease in the abundance and diversity of phytoplankton, the role of microphytobenthos and periphyton increases.

scholarly journals А Result of the histo-phatologic examination on edible organs of the livestock around the suspected mining area

2020 ◽  
Vol 29 (1) ◽  
pp. 15-22
Author(s):  
Bayartogtokh Bataa ◽  
Nurmukhammed Burshakhbai ◽  
Altanchimeg Adilbish ◽  
Lkhamjav Gendenpil ◽  
Tserenchimed Sainnokhoi ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Microscopic Analysis ◽  
Mining Area ◽  
Blood Parameters ◽  
Dust Exposure ◽  
Anthropogenic Factors ◽  
Mining Areas ◽  
Gross Lesions ◽  
Microscopic Change ◽  
Natural And Anthropogenic Factors

In the last decade, there is growing concern about the increase in the number of unknown diseases of pasture livestock due to the natural and anthropogenic factors, such as heavy metals and dust exposure. Thus, it is necessary to measure the concentration of heavy metals in different organs of animals, as well as blood parameters assay and histopathology. We have collected samples from different suspected mining areas, using a random sampling method, and selected 15 goats and 15 sheep. The histopathologic study was performed in necropsy, also macroscopic and microscopic analysis were performed on the diseased animals comparing with healthy animals. In this study, 37.3 % of the sheep and 54.6% of the goat samples were found with gross lesions from different organs, while 24% of sheep and 18.6% of goat organs had microscopic change. Through histo-pathology study, small ruminant lungs of livestock from suspected mining areas were found with inflammatory nodules, while other edible organs were changed in a special transition. In conclusion, we assume the dust exposure from the mining area can be the reason behind the dysfunction. Уул уурхайн, хайгуул олборлолтын бүс орчимд бэлчээрлэж байсан малын эд, эрхтэнд эд судлалын шинжилгээ хийсэн дүнгээс Дэлхийн дулааралт, хуурайшилт болон хүний хүчин зүйлийн (байгаль орчинд халтай технологи бүхий уул уурхайн эрчимтэй үйлдвэрлэл, тээвэрлэлт, эмх замбараагүй олборлолт, хог хаягдал г.м) нөлөөлөлд  Монгол орны бэлчээрийн мал өртсөний улмаас онош нь тодорхойгүй өвчин, төрөл бүрийн хүнд металлын хордлогот эмгэг илэрч, өвчлөх, үхэх, тоо толгой нь хорогдох зэрэг эдийн засгийн хохирол бүхий тохиолдол сүүлийн жилүүдэд нэмэгдэх хандлагатай болсон. Иймд мал амьтны эд эрхтэнд агуулагдаж буй хүнд металлын агууламжийг тодорхойлохын зэрэгцээ биохими болон эд судлалын шинжилгээ хийх шаардлага урган гарсан. Эд судлалын шинжилгээнд төв аймгийн Заамар сумын алтны хайгуул, олборлолт явуулж буй бүс нутаг орчим бэлчээрлэж байсан 6 хонь, 6 ямаа, Дорноговь аймгийн Улаанбадрах, Зүүнбаян  сумын нутаг дэвсгэрт ураны хайгуул, туршилтын олборлолт явуулж буй бүс нутаг болон Айраг сумын жоншны уурхайн олборлолтын бүс нутаг орчим бэлчээрлэж байсан 9 хонь, 9 ямааны эд эрхтнүүдийг хамруулан шинжилгээ хийсэн. Түлхүүр үг: хонь, ямаа,  эд судлалын эмгэгт өөрчлөлт, үлэмж ба бичил бүтэц

Phytoplankton of cold-water lake ecosystems under the influence of natural and anthropogenic factors

2021 ◽  
pp. 42-49
Author(s):  
Andrey N. Sharov
Keyword(s):  
Heavy Metals ◽  
Cold Water ◽  
Arctic Lakes ◽  
Water Bodies ◽  
The Arctic ◽  
Anthropogenic Factors ◽  
Large Lakes ◽  
Arctic Water ◽  
The North ◽  
Natural And Anthropogenic Factors

Based on the study of the spatio-temporal aspects of the development of phytoplankton in the lakes of the North and North-West of the European territory of Russia (large lakes – Imandra, Onega and Chudsko-Pskovskoye and small lakes of the Arctic and Subarctic), the features of its structure and dynamics under the influence of natural and anthropogenic factors (eutrophication, heavy metal pollution, acidification, thermification). The species composition and quantitative characteristics of phytoplankton of large lakes of the North of Russia, small arctic lakes and lakes of subarctic regions are studied. It has been shown that diatoms predominate in arctic water bodies according to species diversity, and green and diatoms predominate in boreal ones. By biomass, diatoms dominate mainly in all cold-water lakes, with the exception of small arctic lakes, where golden algae lead. The features of the reorganization of phytoplankton in response to the action of anthropogenic factors are revealed. It is proved that in the northern water bodies the complex action of heavy metals and nutrients does not lead to inhibition of phytoplankton, and the effect of acidification in combination with heavy metals enhances the toxic effect of the latter. A feature of the response to acidification is an increase in the variability of the dynamics of the biomass of phytoplankton. It has been shown that in different types of lakes of East Antarctica under severe climate conditions under light and biogenic limitation, redistribution of autotrophic components in the formation of the biota of water bodies occurs: against the background of a decrease in the abundance and diversity of phytoplankton, the role of microphytobenthos and periphyton increases.

Phytoplankton of cold-water lake ecosystems under the influence of natural and anthropogenic factors

2021 ◽  
pp. 42-49
Author(s):  
Andrey N. Sharov
Keyword(s):  
Heavy Metals ◽  
Cold Water ◽  
Arctic Lakes ◽  
Water Bodies ◽  
The Arctic ◽  
Anthropogenic Factors ◽  
Large Lakes ◽  
Arctic Water ◽  
The North ◽  
Natural And Anthropogenic Factors

Based on the study of the spatio-temporal aspects of the development of phytoplankton in the lakes of the North and North-West of the European territory of Russia (large lakes – Imandra, Onega and Chudsko-Pskovskoye and small lakes of the Arctic and Subarctic), the features of its structure and dynamics under the influence of natural and anthropogenic factors (eutrophication, heavy metal pollution, acidification, thermification). The species composition and quantitative characteristics of phytoplankton of large lakes of the North of Russia, small arctic lakes and lakes of subarctic regions are studied. It has been shown that diatoms predominate in arctic water bodies according to species diversity, and green and diatoms predominate in boreal ones. By biomass, diatoms dominate mainly in all cold-water lakes, with the exception of small arctic lakes, where golden algae lead. The features of the reorganization of phytoplankton in response to the action of anthropogenic factors are revealed. It is proved that in the northern water bodies the complex action of heavy metals and nutrients does not lead to inhibition of phytoplankton, and the effect of acidification in combination with heavy metals enhances the toxic effect of the latter. A feature of the response to acidification is an increase in the variability of the dynamics of the biomass of phytoplankton. It has been shown that in different types of lakes of East Antarctica under severe climate conditions under light and biogenic limitation, redistribution of autotrophic components in the formation of the biota of water bodies occurs: against the background of a decrease in the abundance and diversity of phytoplankton, the role of microphytobenthos and periphyton increases.

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