Anthropogenic activities
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Ebook "Environmental remediation technologies for metal-contaminated soils" presents a comprehensive and detailed description of remediation techniques for metal-contaminated soils derived from both natural processes and anthropogenic activities. Using a methodical, step-by-step presentation, the book starts by overviewing the origin of toxicants and the correlated comparative extent of contamination to the environment.
257p giangdongdinh 28-05-2024 2 1 Download
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Ebook "Threats to the quality of groundwater resources: Prevention and control" focuses on scientific and technological aspects of groundwater-resources assessment and surveillance. It describes relevant risks and investigates selected techniques for the monitoring and mitigation of the individuated threats to groundwater quality.
326p giangdongdinh 28-05-2024 2 1 Download
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Part 1 book "Climate change and infectious fish diseases" includes content: Freshwater ecosystems in north america with reference to the great lakes basin; tropical freshwater ecosystems, biota, and anthropogenic activities with reference to south east asia; biological sequestrations of atmospheric carbon dioxide with strategies to enhance storage of the gas; rhabdovirosis; nodavirosis; aquatic birnavirosis; herpesvirosis; orthomyxovirosis; iridovirosis; vibriosis.
226p muasambanhan01 11-12-2023 7 2 Download
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Heavy metal contamination in the environment due to anthropogenic activities in industrial and agricultural areas represents stress for the living ecosystem including soil microorganisms. The adaptive response of bacterial communities to these pollutants can be observed through the increasing proportion of resistant bacteria.
10p vimulcahy 18-09-2023 5 3 Download
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Heavy metal pollution in soils has attracted an increasing attention around the world in past decades. The contamination of agricultural soils is often a direct or indirect consequence of anthropogenic activities. Such pollutants, particularly heavy metals which are not biologically degraded like many organic pollutants; but tending to accumulated, can endanger public health by being incorporated into the food chain.
3p vilucius 03-03-2023 1 1 Download
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The diversity and abundance of terrestrial taxa in the evergreen broadleaf forest distributed below the 200m above sea level was highest and some threatened species including Red-shanked Douc, Pygmy Slow Loris were also found here. Therefore, any development activities planned for this area should be carefully considered.
6p vichristinelagarde 04-07-2022 8 1 Download
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The results showed that SOM content was higher in horizon A, whereas mineral matrix elements Al, Fe, and Mg contents were higher in horizon B. Ca and P contents gradually decreased with soil depth due to the influence of fertilizer. Three types of trace element concentration profiles were identified: (1) decrease with depth for Cd and Hg
7p thebadguys 15-01-2022 7 0 Download
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The fast-growing megacities in the South Asian region have been facing environmental issues such as heavy metal load due to anthropogenic activities including Dhaka city. Thus, this study was executed to understand the heavy metal contamination in the urban environment using a novel multi-sample (soil, dust, and tree leaves) approach in Dhaka city, Bangladesh. 13 sites were selected for the analysis of nine heavy metals using AAS.
13p thebadguys 15-01-2022 15 0 Download
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The nutrient pollution index showed moderate to very high pollution while the waterbodies will pose very high non-carcinogenic health risks to users via the oral pathway. Overall, the waterbodies are at risk of eutrophication and efforts should be put in place to reduce anthropogenic activities around the area and thus input of nutrients in these water bodies.
8p thebadguys 15-01-2022 14 0 Download
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Lagoons are valuable ecosystems providing various services, such as fishing, recreational activities, and land reclamation, as well as hosting high biodiversity. Although lagoons in Turkey cover a coastal area of more than 36,000 ha, few studies of them have been conducted. Therefore, two lagoons (Dalyan and Arapçiftliği) located on the coast of the Sea of Marmara in the Kocaçay Delta, which is under intense anthropogenic pressure, were investigated between November 2013 and March 2015 to examine the effects of environmental factors on taxonomic diversity.
11p dolomite36 30-12-2021 11 0 Download
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Due to anthropogenic activity, most vulture species are threatened. Neophron percnopterus, the Egyptian vulture, is a vulture species with a declining population. One of the most important factors threatening the species is exposure to chemicals. The second largest population of this bird species is found in Turkey. Accumulation of heavy metals for this species has not been investigated. The aim of this study was to detect and measure As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn values in the feathers of Neophron percnopterus.
8p dolomite36 30-12-2021 13 0 Download
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The Marmara Sea has a large drainage basin that includes cities with heavy industrialisation and agricultural land use. Therefore, it is under the influence of significant anthropogenic activities that adversely affect the well-being of its ecosystem. The Marmara Sea is also an important fishing ground with many commercially important fish species. These fish species are also under the influence of the adverse impacts of anthropogenic activities. Fisheries catches in the Marmara Sea had experienced severe fluctuations since the onset of the 2000s.
9p dolomite36 30-12-2021 9 0 Download
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The integration of monitoring data and BEXD gave a better interpretation of salinization and freshening, which can be masked by the memory effects of seawater transgression and regression in history.
9p meyerowitz 25-12-2021 8 0 Download
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Inadequate knowledge about forests over limestone ecosystem and understanding on how the threatened plants’ mother trees (MTs) are distributed and remained intact despite rugged topography and anthropogenic activities, intrigued the attention of numerous researchers.
11p viwilliamleiding 10-12-2021 11 2 Download
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In the present study, we successfully prepared two different electrospun polyacrylonitrile (PAN) based-activated carbon nanofiber (ACNF) composites by incorporation of well-distributed Fe2O3 and Co3O4 nanoparticles (NPs). The influence of metal oxide on the structural, morphological, and textural properties of final composites was thoroughly investigated. The results showed that the morphological and textural properties could be easily tuned by changing the metal oxide NPs.
13p tudichquannguyet 29-11-2021 6 1 Download
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Climate change is a natural and continuous process. But recent relatively rapid change in climate occurs due to anthropogenic activities which makes alarming attention because it contributes largely to global warming by affecting the greenhouse gases (GHGs) and aerosols. GHGs mainly CO2, methane, nitrous oxide CFC11, CFC12, HCFC22and HFC23 with different global warming potential accumulate in atmosphere and increase in concentration over time creating the so called “greenhouse effect”.
8p caygaocaolon8 07-11-2020 23 2 Download
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Soil represents one of the most diverse habitats for more than a thousand million bacterial species present on the earth. The maintenance of soil quality, fertility and structure is essential for the protection of the biodiversity and integrity of terrestrial ecosystems. Introduction of anthropogenic chemicals into soil may have lasting effects on soil microbial activities and thus soil health. Chlorpyrifos is a broad spectrum organo phosphorus insecticide, displaying insecticidal activity against a wide range of insects and other arthropod pests.
12p angicungduoc8 07-11-2020 11 1 Download
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The present study focuses on Assisted Natural Regeneration (ANR), also a form of community forestry which assists natural forest regeneration through an arrangement of fire prevention techniques and control on anthropogenic activities by applying various physical barriers.
11p cothumenhmong7 08-09-2020 9 1 Download
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Nitrogen is the key nutrient factor that influences soil fertility and productivity. It is the mineral nutrient that exists in different forms, but nitrate form is the most preferred form by plants. Irrespective of the form in which N is applied to soil, it undergoes transformation viz. mineralization (ammonification, nitrification), denitrification etc. by enzymes produced by micro organisms.
17p trinhthamhodang7 31-08-2020 25 1 Download
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The present study was conducted to assess the floristics, structure and diversity of dry tropical forests in buffer zone of Achanakmaar-Amarkantak Biosphere Reserve. The biosphere is well recognized for its species richness and biological diversity. However, the increasing anthropogenic activities are causing rapid degradation of native ecosystem, especially the buffer and transition zones are severely affected and becoming ecologically fragile by disappearance of many valuable species. A line transect survey was conducted for inventorying floristic composition.
14p angicungduoc6 22-07-2020 13 2 Download