Spatial variation of suspended sediment concentrations in ...
In this study, the spatial variation in suspended sediment concentration within a tropical mountain catchment was studied. The spatial variability in the sediment response of the river basins was analysed in relation to several catchment variables describing climate, lithology, topography and land use to gain insight into the environmental ...
Spatial variation of sediment bacterial community in an ...
Dec 01, 2019 · Spatial variation of sediment bacterial community in an acid mine drainage contaminated area and surrounding river basin Author links open overlay panel Dongmei Hou a b Pan Zhang a b Jiachao Zhang a b Yaoyu Zhou a b c Yuan Yang a b Qiming Mao a b Daniel C.W. Tsang c Avelino Núñez-Delgado d Lin Luo a b
Spatial and temporal variations of sediment metals in the ...
Oct 14, 2019 · Sediment metal (Al, Fe, Mn, Cu, Zn, Pb, Ni, Cd, Hg, and Cr) concentrations and Pb-210 were sampled and analyzed. Results showed that metal concentrations are much higher at areas near the capital city and municipal sewage outlet, with enrichment factor values up to 18 for Cu, and 26 for Cr.
Spatial variations of sedimentary organic carbon ...
Spatial variations of sedimentary organic carbon associated with soil loss influenced by cascading dams in the middle Lancang River
Spatial and temporal variation of sediment yield in the ...
The objective of this study, therefore, is to describe the spatial and temporal variation of sediment yield within a large basin with complex geology, climate, land use history and extensive sediment monitoring, in order to provide a new perspective on the spatial and temporal patterns of sediment …
Spatial variations of microbial communities in abyssal and ...
May 17, 2019 · Aiming to reveal the spatial variations of prokaryotic microbes and find potentially unique groups in the hadal sediments, we investigated five sediment cores from the trench-axis of the Challenger Deep and nine slope sediment cores ranging in depth from 5,480–7,850 m during three cruises in 2016–2017.
Seasonal, spatial variation, and pollution sources of ...
Spatial variation of heavy metals in sediment. Two contrastive patterns of spatial distribution of 11 metals and metalloid in sediment were an increasing trend in exchangeable concentration of Al, Co, Fe, Ni, (varimax factor 1) and Cd, Co, Ni, Pb, and Zn (varimax factor 2) and a decreasing trend in exchangeable concentration of In, Mn, and Sr (varimax factor 3) with sampling sites, from site 1 …
Seasonal and spatial variation in the sediment bacterial ...
Seasonal and spatial variation in the sediment bacterial community and diversity of Lake Bosten, China. Lei Zhang, School of Biology and stone Engineering, Chuzhou University, 1 West Huifeng Road, Chuzhou 239000, China. Lei Zhang, School of Biology and stone Engineering, Chuzhou University, 1 West Huifeng Road, Chuzhou 239000, China.
Spatial variations of macrozoobenthos and sediment ...
Spatial variations of sediment nutrient TOC was significantly and positively correlated with TN ( r = 0.785, p < 0.001, Fig. 8 ). However, no conspicuous relationships were observed between TOC and TP ( r = 0.214, p > 0.05) and between TN and TP ( r = − 0.016, p > 0.05).
Seasonal and Spatial Variation in Suspended Sediment ...
Results demonstrate that there are significant seasonal and spatial variations in particle size spectra and mean stone size. These variations are mainly due to flocculation, influenced by the spatial distribution of salinity and suspended sediment concentration in June by the distribution of salinity …
Spatial Variation of Sediment and Some Nutrient Elements ...
Spatial Variation of Sediment and Some Nutrient Elements in GBM Delta Estuaries: A Preliminary Assessment Conference stone (PDF Available) · December 2015 with 111 …
Evaluating spatial variation of suspended sediment rating ...
Both power and linear SRCs were used to fit daily flow and suspended sediment concentration (SSC) historical data at 49 gauging stations throughout the middle YRB. The spatial variation in regression coefficients was investigated, and the relationship between regression coefficients and …
Spatio-temporal trends and causes of variations in runoff ...
Oct 05, 2019 · This study aims to characterize the spatial distribution, inter-annual variation of runoff and sediment load in the Jinsha River Basin, and to analyze the contribution of rainfall and human activities to the runoff and sediment load changes.
Spatial Variation of Sediment Sulfate Reduction Rates in a ...
Dec 12, 2007 · Sediment cores were collected from three of the basins at different water depths, and used in laboratory studies to evaluate the spatial distribution of sulfate-reducing bacteria (SRB) activity in the lake sediments.
Spatial Variation of Dissolved Nutrient and Heavy Metal ...
Spatial Variation of Dissolved Nutrient and Heavy Metal Concentrations in River Bed Sediments as Influenced by Land-Use Patterns in Ogun-Osun River Basin, Nigeria 1204 . from different sources normally accumulate together, most- ly in fine-grained fractions of sediments [9]. To this ex- tent, researchers have identified river sediments as a re-
Spatial and temporal variation of stream chemistry ...
The objective of this study was to investigate spatial and temporal variations in water chemistry and suspended sediment in these four relatively small watersheds that represent a range of land-use patterns and underlying geology to (1) characterize current water-quality conditions in these watersheds, and (2) identify the dominant sources ...
Assessment of spatial variation of cesium-137 in small ...
This study aims to quantify the unique and joint contribution of soil and sediment properties, land cover, and point-source emissions to the spatial variation of P concentrations in soil ...
Spatial and temporal variations of sediment metals in the ...
Spatial and temporal variations of sediment metals in the Tuul River, Mongolia Article in Environmental Science and Pollution Research 26(1):1-12 · October 2019 with 54 Reads How we measure reads
Spatial variation of phosphorus fractions ... - SpringerLink
Jun 18, 2009 · Spatial variation of phosphorus fractions in bottom sediment, pore water and overlying water in three shallow eutrophic lakes, Nishiura, Kitaura and Sotonasakaura, Japan, and the contributions of the fractional P to mobilization of phosphorus from sediment were examined in this study.