Sediment samples were collected for texture, composition and nutrient such as organic carbon, total nitrogen and total phosphorus for a period of two years from three stations in Arasalar estuary. The sediment temperature, pH and nutrients were higher during summer season and lower during monsoon season. At station 1, sediment texture was loamy sand during summer and premonsoon season. At station 2, clay type soil was recorded. Whereas, at station 3, clay was observed in summer and premonsoon and then it shifted to sandy loam type soil during monsoon. Sediment nutrients were lower than that of values of various ecosystem of India.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Assessing the influence of geo-environmental factors on discontinuous gully erosion at regional scales: A case study of spoon gullies on the loess plateau of China.
J Environ Manage
January 2025
School of Geography, Nanjing Normal University, Nanjing, 210023, China; Key Laboratory of Virtual Geographic Environment, Ministry of Education, Nanjing Normal University, Nanjing, 210023, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023, China.
Article Synopsis
- Discontinuous gullies, particularly spoon gullies on the Loess Plateau, are complex and have not been studied extensively, especially regarding their sediment yield processes.
- Factorial analysis revealed that continuous gully density is the most significant factor influencing spoon gully distribution, contributing to 41.6% of their spatial arrangement, with other factors like NDVI and soil characteristics also playing roles.
- The study identified seven distinct clusters of spoon gullies based on dominant factors and produced a susceptibility map for gully occurrence with high predictive accuracy, indicating intricate interactions among environmental factors.
Turbidity flows can transport massive amounts of sediment across large distances with dramatic, long-lasting impacts on deep-sea benthic communities. The 2016 M 7.8 Kaikōura Earthquake triggered a canyon-flushing event in Kaikōura Canyon, New Zealand, which included significant submarine mass wasting, debris, and turbidity flows.
View Article and Find Full Text PDFCrystallization Pathways of Iron Formations: Insights From Magnetic Properties and High-Resolution Imaging of the 2.7 Ga Carajás Formation, Brazil.
Geobiology
December 2024
Géosciences Montpellier, CNRS, Université de Montpellier, Montpellier, France.
Banded iron formations (BIFs) are chemical sedimentary rocks commonly utilized for exploring the chemistry and redox state of the Precambrian ocean. Despite their significance, many aspects regarding the crystallization pathways of iron oxides in BIFs remain loosely constrained. In this study, we combine magnetic properties characterization with high-resolution optical and electron imaging of finely laminated BIFs from the 2.
View Article and Find Full Text PDFDelineating distinct sediment pollution signatures from diverse sources in a heavily contaminated estuary near an area of high cancer and cardiovascular mortality.
Sci Total Environ
December 2024
Department of Plant Biology and Ecology, University of Seville (US), Ap 1095, 41080 Seville, Spain.
Article Synopsis
- The study investigated pollution signatures in marsh sediments of the Odiel-Tinto Estuary to guide restoration efforts, focusing on various pollution sources like acid mine drainage and agricultural runoff.
- We analyzed chemical elements and sediment characteristics across multiple marshes, creating spatial maps to visualize pollution distributions from different sources.
- Our findings can help identify responsible polluters, assess the most affected areas, and serve as a baseline for evaluating the future impacts of the RESTORE 2030 restoration plan.
How Does Mangrove Restoration or Reforestation Change Trace Metal Pollution in Mangrove Ecosystems? A Review of Current Knowledge.
Toxics
November 2024
Key Laboratory of the Ministry of Education for Earth Surface Processes, College of Urban & Environmental Sciences, Peking University, Beijing 100089, China.
In recent years, mangrove restoration has gained significant attention due to its carbon storage capacity, role as a pollution sink, and ecological and economic benefits. Moreover, the United Nations Sustainable Development Goals' strategies include mangrove restoration. This review investigates the status of mangrove restoration research and the influence of restoration on trace metal accumulation, speciation, and associated risks in mangrove sediments.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!