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70 articles for “Anthropogenic”

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Research ArticleOpen accessEvery word in the titleFloodplain Plant Diversity and Anthropogenic Impacts in the Irtysh River Valley, Northeastern KazakhstanShynar Zhanybekovna Arynova, Kanat Kombarovich Akhmetov, Galymbek Sovetovich Azhayev et al.This study investigates the composition, diversity, and ecological adaptation strategies of plant communities in the Irtysh River floodplain (Northeastern Kazakhstan) under natural and anthropogenic pressures. Field-based geobotanical surveys were conducted from May to August 2024 across 40 representative plots. Standard phytocoenotic description methods were employed, along with phenological and ecological assessments. A total of 549 vascular plant species from 74 … …OnLine Journal of Biological Sciences, Vol. 25, Issue 3 · 26 Nov 2025 · 1,933 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleRespondent’s Perception on Anthropogenic Determinants of Gully Erosion in Upper Imo River Basin (UIRB), Southeastern NigeriaChibo Christian Nnamdi, Oluoyin Adeola FashaeGully erosion has been acknowledged as one of the global environmental issues that affect the region's economy. It is caused by man in his quest to make a living through different economic activities. This research was carried out to investigate the perception of the people in gully-prone areas on the anthropogenic determinants of gully erosion within a headwater. Various economic … …American Journal of Environmental Sciences, Vol. 19, Issue 4 · 21 Feb 2024 · 5,545 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAssessment of the Role of Oil and Gas Production Complex in Anthropogenic Changes in Vegetation in Mangystau RegionLyudmila Pavlichenko, Espolayeva Aikerim, Aliya Aktymbayeva, Iztayeva AzizaThe article includes the detailed description of a simplified method of solving the integrated environmental assessment inverse problem. The method was developed by the authors on the basis of using ready map of expert specific environmental assessment of anthropogenic transformation of vegetation in Mangistau region. The first part of the methodology is aimed on obtaining concrete actual evidence which is … …American Journal of Environmental Sciences, Vol. 13, Issue 2 · 5 May 2017 · 7,235 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleGeochemical Distribution of Trace Metals and Assessment of Anthropogenic Pollution in Sediments of Old Nakagawa River, Tokyo, JapanH.M. Zakir, Naotatsu Shikazono, Kazuo OtomoThe geochemical distributions of cadmium (Cd), copper (Cu), chromium (Cr), lead (Pb) and zinc (Zn) were examined in sediments collected from Old Nakagawa River (NR), Tokyo, Japan. A widely used 5-step sequential extraction procedure was employed for the fractionation of the metals and the concentrations were measured in the liquid extracts by inductively coupled plasma mass spectrometry (ICP-MS). The association … …American Journal of Environmental Sciences, Vol. 4, Issue 6 · 31 Dec 2008 · 7,453 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleMan Invades Nature: Tracing the Dynamics and Trends of Anthropogenic Stressors Within a Coastal Wetland EnvironmentEmmanuel Yeboah Okyere, Kofi Adu-Boahen, Bismark MensahCoastal areas contain some of the most valuable resources on earth that are constantly under threat due to human development. Notable among these resources are wetlands, a delicate but beneficial asset to coastal dwellers. This study studied the growth of Winneba City into the Muni Lagoon catchment as well as its associated effects on the Ramsar Site. The study used … …Journal of Social Sciences, Vol. 19, Issue 1 · 16 Jun 2023 · 6,052 accessesView PDFCite
Case ReportOpen accessEvery word in the titleGully Morphological Assessment and Anthropogenic Determinants in Urban and Rural Settlements of Upper Imo River Basin (UIRB) South Eastern NigeriaNnamdi Christian ChiboGully erosion have been proven to vary both in terms of size and number in urban and rural settlements and is caused by factors related to both human and natural phenomenon. This study assessed the gully morphological development in an urban and rural settlement with the view of finding the settlement that is more vulnerable to gully erosion development. It … …American Journal of Environmental Sciences, Vol. 18, Issue 6 · 19 Dec 2022 · 5,950 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleVirtual Assessment of air Pollution Dispersion from Anthropogenic Sudden ExplosionMarvel Lola Akinyemi, Moses Eterigho Emetere, Mojisola Rachel UsikaluThe control of air pollutants from anthropogenic sources seems almost impossible due to numerous influencing factors present in the atmosphere. In this study, we carried out a virtual mathematical experimentation using Math CAD, Mat lab and analytical approximation to estimate the dimensional impact of initial pollutant plume cloud from a sudden volcanic blast and the dynamics of its wind field. … …American Journal of Environmental Sciences, Vol. 12, Issue 2 · 9 Apr 2016 · 7,157 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Impact of Anthropogenic Activities Recorded By Mercury in the Sediment from Dianshan LakeHui Zhang, Nan Zhang, Qi Yang et al.The mercury in sediment cores from Dianshan Lake, Shanghai is studied in this study and it indicates that the mercury level changing from 52.78-145.66 µg kg-1 in sediment can be obviously divided into three sections responding to the development of economy of Shanghai. Mercury decreases with depth in 0-11 cm underground, which is corresponding to the depositing period after 1980; … …American Journal of Environmental Sciences, Vol. 8, Issue 4 · 4 Aug 2012 · 7,018 accessesView PDFCite
Research ArticleOpen accessIn the keywordsOff-road Vehicle-Induced Substrate Vibrations Are Associated with Strong Declines in Ectomycorrhizal Mushroom Fruiting in Forest EcosystemsLev ShestakovWe conducted a multi-year (2020-2024) control-impact field study in a pine forest of the Moscow Region to assess whether off-road vehicle activity affects the fruiting of two ecologically important ectomycorrhizal fungi, Boletus edulis and Suillus luteus. Substrate vibrations associated with vehicle passage were recorded and characterized by dominant energy in the low-frequency range. Over the study period, abundance in disturbed … …OnLine Journal of Biological Sciences, Vol. 26, Issue 2 · 23 May 2026 · 1,305 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDetermination and Source Apportionment of Selected Heavy Metals in Aerosol Samples Collected from SebeleAlfred Sello Likuku, Gilbert Kabelo Gaboutloeloe, Khumoetsile B. MmolawaBush fires and dust in the dry winter months establish moderately high background levels of aerosols. Emissions into the atmosphere by copper mines, coal mines and vehicular emissions are all possible sources of air pollution with heavy metals. Although there has been assessment and monitoring of heavy metals and their air pollution in other countries such as Brazil, Europe and … …American Journal of Environmental Sciences, Vol. 9, Issue 2 · 25 Apr 2013 · 7,441 accessesView PDFCite