scholarly journals The Relationship Between Metal Forms Found in River Bottom Sediments and Land Development (Review)

10.5772/30314 ◽  
2012 ◽  
Author(s):  
Anna Rabajczyk
Keyword(s):  
Bottom Sediments ◽  
Land Development ◽  
Development Review ◽  
The Relationship ◽  
River Bottom

scholarly journals Analysis of Spatial Variability of River Bottom Sediment Pollution with Heavy Metals and Assessment of Potential Ecological Hazard for the Warta River, Poland

Minerals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 327
Author(s):  
Joanna Jaskuła ◽  
Mariusz Sojka ◽  
Michał Fiedler ◽  
Rafał Wróżyński
Keyword(s):  
Heavy Metals ◽  
Bottom Sediment ◽  
Bottom Sediments ◽  
Risk Index ◽  
Point Sources ◽  
Sediment Pollution ◽  
Sample Collection ◽  
Effect Concentration ◽  
Ecological Hazard ◽  
River Bottom

Pollution of river bottom sediments with heavy metals (HMs) has emerged as a main environmental issue related to intensive anthropopressure on the water environment. In this context, the risk of harmful effects of the HMs presence in the bottom sediments of the Warta River, the third longest river in Poland, has been assessed. The concentrations of Cr, Ni, Cu, Zn, Cd, and Pb in the river bottom sediments collected at 24 sample collection stations along the whole river length have been measured and analyzed. Moreover, in the GIS environment, a method predicting variation of HMs concentrations along the whole river length, not at particular sites, has been proposed. Analysis of the Warta River bottom sediment pollution with heavy metals in terms of the indices: the Geoaccumulation Index (Igeo), Enrichment Factor (EF), Pollution Load Index (PLI), and Metal Pollution Index (MPI), has proved that, in 2016, the pollution was heavier than in 2017. Assessment of the potential toxic effects of HMs accumulated in bottom sediments, made on the basis of Threshold Effect Concentration (TEC), Midpoint Effect Concentration (MEC), and Probable Effect Concentration (PEC) values, and the Toxic Risk Index (TRI), has shown that the ecological hazard in 2017 was much lower. Cluster analysis revealed two main groups of sample collection stations at which bottom sediments showed similar chemical properties. Changes in classification of particular sample collection stations into the two groups analyzed over a period of two subsequent years indicated that the main impact on the concentrations of HMs could have their point sources in urbanized areas and river fluvial process.

scholarly journals RIGHT OF ACCESS ON UNDERGROUND LAND DEVELOPMENT: GUIDANCE FROM SINGAPORE AND AUSTRALIA

2020 ◽  
Vol 5 (21) ◽  
pp. 267-276
Author(s):  
Najah Inani Abdul Jalil ◽  
‘Ain Husna Mohd Arshad
Keyword(s):  
Urban Areas ◽  
Land Development ◽  
The Creation ◽  
The Law ◽  
The Right ◽  
Right Of Access ◽  
The Relationship ◽  
Land Code

In 1990, the creation of underground land is created in the National Land Code. The scarcity of land especially in urban areas has pushed the traditional horizontal land development into vertical land development. Apart from transportation purposes, it is suitable for recreational, storage, and service utility purposes. Within this development, it attracts questions such as how to reconcile the right of surface and underground landowners as the law has allowed the ownership of underground land to be independent and separate from the surface owner. In governing the relationship between the surface and the underground landowners, the provision of access, support, and protection are regulated under the express condition in the document of title. This paper explores the concept of the right of support in Malaysia and the requirement for its application. This paper uses the doctrinal method where statutory provisions, cases, legal articles are examined. In discussing this topic, the practice in Singapore and Australia is compared, and it is suggested in regulating the relationship between surface and underground landowners, the creation of easement to be adopted with the compensation to be awarded to the burdened land.

scholarly journals Linkage between Tourism and Climate Change: A Study of the Perceptions of Stakeholders along the Annapurna Trekking Trail

2013 ◽  
Vol 2 (1) ◽  
pp. 60-86 ◽  
Author(s):  
Shraddha Rayamajhi
Keyword(s):  
Climate Change ◽  
Development Review ◽  
Tourism Sector ◽  
The Relationship

This paper explores the relationship between tourism and climate change. It takes the perceptions of the stakeholders in the tourism sector, mainly the lodge-owners, guides and tourists in the Annapurna Trekking Trail. DOI: http://dx.doi.org/10.3126/ntdr.v2i1.7380 Nepal Tourism and Development Review Vol.2(1) 2012 60-86

Texture of the Bureya River bottom sediments in the area of the Lower Bureya HPP

2017 ◽  
Vol 72 (1) ◽  
pp. 21-30 ◽  
Author(s):  
G. V. Kharitonova ◽  
E. V. Shein ◽  
V. P. Shesterkin ◽  
A. V. Yudina ◽  
A. V. Dembovetsky ◽  
...  
Keyword(s):  
Bottom Sediments ◽  
Bureya Hpp ◽  
River Bottom

scholarly journals Analyzing the Relationship between Developed Land Area and Nighttime Light Emissions of 36 Chinese Cities

2018 ◽  
Vol 11 (1) ◽  
pp. 10 ◽  
Author(s):  
Hui-min Li ◽  
Xiao-gang Li ◽  
Xiao-ying Yang ◽  
Hao Zhang
Keyword(s):  
Structural Equation ◽  
Light Emission ◽  
Land Development ◽  
Equation Model ◽  
Panel Regression ◽  
Land Area ◽  
Human Settlements ◽  
Nighttime Light ◽  
Low Efficiency ◽  
The Relationship

The satellite-observed nighttime light emission (NTLE) data provide a new method for scrutinizing the footprint of human settlements. Changing NTLEs can be attributed to the direct/indirect influences of highly complex factors that are beyond the ability of simple statistical models to distinguish. Besides, the relatively coarse resolution of the NTLE products combined with light from human settlements may produce misleading results, as the relationship between spatiotemporal heterogeneity in the growth of developed land (e.g., urban and rural residences, shopping centers, industrial parks, mining plants, and transportation facilities) and the associated NTLEs has not been adequately analyzed. In this study, we developed a total nighttime brightness index (TotalNTBI) to measure the NTLEs with the defense meteorological satellite program/operational linescan system (DMSP/OLS) nighttime light data enhanced by sharpening the edges of the pixels. Thirty-six key cities in China were selected to investigate the relationship between the total developed land area and the associated TotalNTBI from 2000 to 2013 using panel regression and a simplified structural equation model (SEM). The results show that the overall trend in TotalNTBI agreed well with that of the total developed land area (mean adjusted R2 = 0.799). The panel regression models explained approximately 71.8% of the variance of total developed land area and 92.4% of the variance in TotalNTBI. The SEM revealed both the direct and indirect influences of independent variables on the total developed land area and the associated TotalNTBI. This study may provide useful information for decision-makers and researchers engaged in sustainable land development, urban management, and regional developmental inequality, focusing on recent issues, such as retrospective analysis of human footprint with sharpened nighttime NTLE products, the loss of natural and semi-natural land due to the sprawling developed land area indicated by intensively lit area, and the low efficiency of land development indicated by the anomalies of developed land area and associated NTBIs.

Assessment of metals content in river bottom sediments near sewage treatment plants

2020 ◽  
Vol 199 ◽  
pp. 314-322
Author(s):  
Mirosław Skorbiłowicz ◽  
Elżbieta Skorbiłowicz ◽  
Justyna Tkaczuk
Keyword(s):  
Bottom Sediments ◽  
Sewage Treatment ◽  
Sewage Treatment Plants ◽  
River Bottom

Joint analysis of surface‐wave and refraction events from river‐bottom sediments

2000 ◽  
Author(s):  
Julian Ivanov ◽  
Choon B. Park ◽  
Richard D. Miller ◽  
Jianghai Xia ◽  
James A. Hunter ◽  
...  
Keyword(s):  
Surface Wave ◽  
Bottom Sediments ◽  
Joint Analysis ◽  
River Bottom

scholarly journals The Contamination of Sventoji River Bottom Sediments by Heavy Metals in Ukmerge, Lithuania

2016 ◽  
Vol 25 (1) ◽  
pp. 1-10
Author(s):  
Vaidotas Valskys ◽  
Mindaugas Motiejunas ◽  
Gytautas Ignatavicius ◽  
Stanislovas Sinkevicius
Keyword(s):  
Heavy Metals ◽  
Bottom Sediments ◽  
River Bottom
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