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You searched for: Publication year rev 7990-2010 Remove constraint Publication year rev: 7990-2010 Publication Year 2010 Remove constraint Publication Year: 2010 Subject term color Remove constraint Subject term: color Subject term dissolved organic carbon Remove constraint Subject term: dissolved organic carbon
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1. Changes in water colour between 1986 and 2006 in the headwaters of the River Nidd, Yorkshire, UK

Author:
Chapman, Pippa J.; McDonald, Adrian T.; Tyson, Rosa; Palmer, Sheila M.; Mitchell, Gordon; Irvine, Brian
Source:
Biogeochemistry 2010 v.101 no.1-3 pp. 281-294
ISSN:
0168-2563
Subject:
adsorption; biogeochemistry; color; dissolved organic carbon; hydrochemistry; mineral soils; pH; peat; rivers; runoff; silicon; soil horizons; statistical analysis; subwatersheds; sulfur; temporal variation; England
Abstract:
... This study compares the spatial and temporal variability of water colour for fifteen sub-catchments of the River Nidd, northeast England, in 1986 and 2006/2007. Between 1986 and 2006/2007, mean annual water colour increased in all the sub-catchments. However, there was considerable variation in the increase, which ranged from 22 to 155%. Statistical analysis revealed that the sub-catchments could ...
DOI:
10.1007/s10533-010-9474-x

2. Dissolved oxygen and its response to eutrophication in a tropical black water river

Author:
Rixen, Tim; Baum, Antje; Sepryani, Harni; Pohlmann, Thomas; Jose, Christine; Samiaji, Joko
Source:
Journal of environmental management 2010 v.91 no.8 pp. 1730-1737
ISSN:
1095-8630
Subject:
anthropogenic activities; color; dissolved organic carbon; dissolved oxygen; eutrophication; models; oxygen; oxygen production; peat soils; photosynthesis; river water; rivers; wastewater; Indonesia
Abstract:
... The Siak is a typical, nutrient-poor, well-mixed, black water river in central Sumatra, Indonesia, which owes its brown color to dissolved organic matter (DOM) leached from surrounding, heavily disturbed peat soils. We measured dissolved organic carbon (DOC) and oxygen concentrations along the river, carried out a 36-h experiment in the province capital Pekanbaru and quantified organic matter and ...
DOI:
10.1016/j.jenvman.2010.03.009
PubMed:
20435403

3. Experimental warming increases CO₂ saturation in a shallow prairie pond

Author:
Flanagan, Kyla M.; McCauley, Edward
Source:
Aquatic ecology 2010 v.44 no.4 pp. 749-759
ISSN:
1386-2588
Subject:
sediments; carbon dioxide; gases; lakes; ponds; ambient temperature; carbon sequestration; global carbon budget; color; dissolved organic carbon; climate models; global warming; water temperature
Abstract:
... There is an urgent need to understand the effect of climate warming on the carbon dynamics of lakes and ponds in order to assess contributions to global carbon budgets. Currently, we are unable to predict how the exchange of carbon gases (i.e. CO₂) across the air-water boundary and organic carbon storage in the sediments will be altered with realistic warming scenarios downscaled from climatic mod ...
DOI:
10.1007/s10452-010-9313-0

4. Has the composition of fluvial DOC changed? Spatiotemporal patterns in the DOC-color relationship

Author:
Worrall, F.; Burt, T.P.
Source:
Global biogeochemical cycles 2010 v.24 no.1 pp. GB1010 (12 p
ISSN:
0886-6236
Subject:
color; data collection; databases; dissolved organic carbon; hydrochemistry; monitoring; rivers; soil; United Kingdom
Abstract:
... Long-term increases in dissolved organic carbon (DOC) concentration are now a commonly reported phenomenon across the Northern Hemisphere. Hypotheses proposed to explain the observed increases have implications for changes in DOC composition as well as concentration. This study examines the records of color (Hazen units) and DOC from the UK's Harmonised Monitoring Scheme database from 1974 to 2005 ...

5. Impact of riverbank filtration on treatment of polluted river water

Author:
Singh, P.; Kumar, P.; Mehrotra, I.; Grischek, T.
Source:
Journal of environmental management 2010 v.91 no.5 pp. 1055-1062
ISSN:
0301-4797
Subject:
rivers; water pollution; water treatment; chlorination; ozonation; filtration; dissolved organic carbon; color; coliform bacteria; drinking water; water quality; ultraviolet radiation; absorbance; India
Abstract:
... The impact of riverbank filtration (RBF) on the treatment of water from the River Yamuna at Mathura, which has disagreeable visual properties, has been investigated. The dissolved organic carbon (DOC) and colour of the river water were 4.0–6.8 mg/L and 40–65 colour units (CU), respectively. Pre-chlorination is in practice to improve raw water quality. Chlorine doses as high as 60 mg/L ahead of the ...
DOI:
10.1016/j.jenvman.2009.11.013
PubMed:
20089349

6. Influence of fish assemblage and shallow lake productivity on waterfowl communities in the Boreal Transition Zone of western Canada

Author:
C. A. EPNERS; S. E. BAYLEY; J. E. THOMPSON; W. M. TONN
Source:
Freshwater biology 2010 v.55 no.11 pp. 2265-2280
ISSN:
0046-5070
Subject:
Anseriformes; breeding; color; community structure; dissolved organic carbon; ducks; environmental factors; eutrophication; fish; fish communities; habitats; lakes; molting; phosphorus; population density; potassium; species diversity; submerged aquatic plants; waterfowl; Alberta
Abstract:
... 1. Shallow lakes in the Boreal Transition Zone (BTZ) in Alberta, Canada are naturally productive systems that provide important breeding and moulting habitat for many waterfowl (Anseriformes). To examine the relative importance of biotic and abiotic factors on waterfowl population densities, species richness and community composition, we surveyed 30 shallow lakes and evaluated the relationships am ...
DOI:
10.1111/j.1365-2427.2010.02432.x

7. Spatial and temporal variability in the relationship between water colour and dissolved organic carbon in blanket peat pore waters

Author:
Wallage, Z.E.; Holden, J.
Source:
Science of the total environment 2010 v.408 no.24 pp. 6235-6242
ISSN:
0048-9697
Subject:
temporal variation; peat; water quality; absorbance; peatlands; watersheds; dissolved organic carbon; color; wavelengths; land management; biogeochemical cycles
Abstract:
... The transfer of carbon from terrestrial peat to the fluvial environment forms an important component of the peatland carbon cycle, and has major implications for water quality. Dissolved organic carbon (DOC) is generally considered the largest constituent of aquatic carbon and tends to be the most intensively monitored, particularly in peatland catchments. However, many long-term records for DOC a ...
DOI:
10.1016/j.scitotenv.2010.09.009
PubMed:
20888621

8. The impact of peatland drain-blocking on dissolved organic carbon loss and discolouration of water; results from a national survey

Author:
Armstrong, A.; Holden, J.; Kay, P.; Francis, B.; Foulger, M.; Gledhill, S.; McDonald, A.T.; Walker, A.
Source:
Journal of hydrology 2010 v.381 no.1-2 pp. 112-120
ISSN:
0022-1694
Subject:
water quality; peatlands; dissolved organic carbon; color; drainage; drainage water; United Kingdom
Abstract:
... Peatlands are important terrestrial carbon stores but their environmental degradation has led to concerns of increased carbon loss. Many peatlands have been drained using open ditches and this practice has been associated with enhanced dissolved organic carbon loss and water discolouration. Recent peatland restoration schemes have therefore included the blocking of peatland drains as a strategy fo ...
DOI:
10.1016/j.jhydrol.2009.11.031