Spatio-temporal variation of the suspended sediment ...
The spatial variation of the rate of decrease implies that the long-term SSC trend in the PRE may be related to the sediment load carried by the water discharge from the Pearl River, as the slightest SSC decrease was found in Region 2 where the SSC is less influenced by horizontal sediment transport by the freshwater discharge.
Sediment Composition Influences Spatial Variation in the ...
Nov 14, 2014 · Spatial and temporal variations in bacterial abundance in an environment are controlled by the interactions of complex physical, stone and biological parameters, such as available nutrients , organic matter , sediment stone size , clay content , heavy metal content , predation by protozoa , competition , temperature , salinity , sunlight intensity and seasonal variations .
Spatial variations of incoming sediments at the ...
Mar 30, 2020 · Our seismic reflection data reveal that the thickness of the sediment layer between the seafloor and the acoustic basement is a few hundred meters in most areas, but there are a few areas where the sediments appear to be extremely thin.
Spatial patterns and variation of suspended sediment yield ...
Spatial patterns and variation of suspended sediment yield in the upper Indus River basin, northern Pakistan. Author links open overlay panel Khawaja Faran Ali Dirk H. De Boer. Show more. ... The runoff and sediment transport regime along the main stem of the Indus River is dominated by the melt of snow and ice in its headwaters, ...
Spatial and temporal variations of sediment quality in and ...
Dec 21, 2001 · A variation in sediment quality within the two sites and also within the stations was observed. Based on sediment quality, the stations could be categorized as less affected, highly affected or moderately affected.
Temporal and spatial variations of sediment rating curves ...
Jan 15, 2011 · Temporal and spatial variations of the sediment rating curves were analyzed with respect to the impact of human activities and watershed characteristics. Results indicate that human disturbances have had a substantial impact on sediment rating parameters, with the magnitude of the impact related to the scale of the river sections.
Spatial variation of sediment bacterial community in an ...
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 …
Factors affecting the spatial and temporal distribution of ...
Spatial and temporal variation of sediment characteristics and FIOs The four sites sampled every 4 weeks (intensive sites) were characterised according to their increasing median particle size: Mud (M), Mixed Mud (MM), Mixed Sand (MS) and Sand (S) (Fig. 1 A).
Spatial variations of carbon, nitrogen, phosphorous and ...
The spatial and temporal variations in the sediment distribution of the tidal flat zone play an important role in controlling the organic matter concentration, transformation and redistribution (Fig. 2, Fig. 3, Fig. 4, Fig. 5). The present discussion focuses on the key components described below.
Remote Sensing of Temporal and Spatial Variations of ...
In this study, temporal and spatial variations of SSC at Bahmnshir Estuary (BE) in the southwest of Iran were investigated using five field campaigns and Moderate Resolution Imaging Spectroradiometer (MODIS) sensor images of a nine-year time series from 2003 to 2011.
Spatial and seasonal variations of organic carbon ...
The distribution of sedimentary OC was investigated in 14 different intertidal zones along China’s coastline during the wet (WS) and the dry (DS) seasons. Our results showed spatial and seasonal variations of sedimentary OC between different intertidal zones, which were primarily controlled by the preservation conditions (grain size).
(PDF) Temporal and Spatial Variation of Mixing and ...
Azhikodan, G. and Yokoyama, K., 2015. Temporal and spatial variation of mixing and movement of suspended sediment in the macrotidal Chikugo River estuary.
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. Corresponding Author. ... The study provides a reference for the in‐depth understanding the impact with the change of time and space on sediment microbes in Lake Bosten.
Spatial variations of microbial communities in abyssal and ...
Microbial communities in hadal sediments are least explored in hadal zone (>6,000 m), especially in the Challenger Deep with high pressure (∼110 M pa at the bottom). In this study, we investigated the microbial communities in the sediments of the slope and trench-axis bottom of the Challenger Deep in the Mariana Trench. Classification of the reads of the 16S rRNA gene amplicons showed ...
Spatial variation of microtopography and its effect on ...
Dynamic erosion pattern continuously creates and alters microrelief. Meanwhile, microrelief will in turn change the erosion patterns. Hence, the spatial variation of microtopography is a descriptor that reflects how the soil surface behaves against the soil erosion.
(PDF) Spatial and Seasonal Variations of Sedimentary ...
The OM in the surface sediment of ZJB was a mixture of terrestrial and marine sources, and was dominated by marine OM (54.9% ± 15.2%). ... Spatial variations in the clay (a,d), silt (b,e), and ...
Spatial variation of sediment bacterial community in an ...
Spatial variation of sediment bacterial community in an acid mine drainage contaminated area and surrounding river basin Article in Journal of Environmental Management 251:109542 · …
Spatial variability of sediment methane production and ...
Spatial heterogeneity in the availability of organic matter (OM) for biological CH 4 production by methanogenic archaea may be an important contributor to this variation. To investigate this, we measured sediment CH 4 potential production rates, OM source and quantity, and methanogen community composition at 15 sites within a eutrophic ...
Spatial Analysis
Spatial variation of sediment yield in the landscape Regional scale relationships between specific sediment yield and drainage area in the Missouri basin reveal varying landscape sedimentary dynamics.
Spatial–temporal variation of nitrogen and diffusion flux ...
Mar 17, 2020 · The spatial variations of different N components in the sediment of the hydro-fluctuation belts are shown in Figure 4. The sampling sites were in SS (SS1–SS6), TS (TS1–TS5) and LS (LS1–LS4). The main nitrogen forms of NH 4 +-N, NO 3 −-N and NO 2 −-N had higher concentrations in TS and LS than SS.