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You searched for: Journal name Biogeochemistry Remove constraint Journal name: Biogeochemistry Subject term color Remove constraint Subject term: color Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
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1. The effect of a shift from macrophyte to phytoplankton dominance on phosphorus forms and burial in the sediments of a shallow hard-water lake

Author:
Anna-Marie Klamt; Sabine Hilt; Matthias Moros; Helge W. Arz; Michael Hupfer
Source:
Biogeochemistry 2019 v.143 no.3 pp. 371-385
ISSN:
0168-2563
Subject:
X-radiation; calcium; cesium; color; eutrophication; fluorescence; lakes; lead; macrophytes; mercury; phosphorus; phytoplankton; pollution load; radionuclides; sediments; total nitrogen; total organic carbon; water hardness; Germany
Abstract:
... In shallow lakes, increasing phosphorus (P) loading has often been accompanied by a shift from a clear-water, macrophyte-dominated state to a turbid state featuring phytoplankton dominance. The effect of a regime shift on P burial and P fractions in lake sediments, however, is poorly understood. We used sediment cores from a eutrophic hard-water lake (Lake Gollinsee, Germany) that had undergone a ...
DOI:
10.1007/s10533-019-00567-4

2. Latitudinal gradient of C4 grass contribution to Black Soil organic carbon and correlation between δ13C and the melanic index in Japanese forest stands

Author:
Shigehiro Ishizuka; Kimiyasu Kawamuro; Akihiro Imaya; Atsushi Torii; Kazuhito Morisada
Source:
Biogeochemistry 2014 v.118 no.1-3 pp. 339-355
ISSN:
0168-2563
Subject:
soil organic carbon; C3 plants; pollen; stable isotopes; land use; grasslands; polluted soils; forests; forest stands; tephra; climate; grasses; C4 plants; temperature; humus; latitude; color; soil profiles; Japan
Abstract:
... Black Soil in Japanese forests is believed to have formed under grasslands, on the basis of pollen and stable carbon isotopic analyses. Carbon stable isotope ratios (δ¹³C) have indicated that the δ¹³C value widely ranged from −25 to −17 ‰ in various land-use soils. We measured the δ¹³C of soil organic carbon (SOC) in Black Soil in forests from northern (43°N) to southern (31°N) Japan. The δ¹³C val ...
DOI:
10.1007/s10533-013-9936-z

3. Changes in water colour between 1986 and 2006 in the headwaters of the River Nidd, Yorkshire, UK: a critique of methodological approaches and measurement of burning management

Author:
A. R. Yallop; B. Clutterbuck; J. I. Thacker
Source:
Biogeochemistry 2012 v.111 no.1-3 pp. 97-103
ISSN:
0168-2563
Subject:
burning; color; dissolved organic carbon; drainage; heathlands; peat; peat soils; rivers; surface water; watersheds; United Kingdom
Abstract:
... The effect of moorland management on the release of dissolved organic carbon (DOC) from blanket peat is currently a topic of great interest in the UK. A recent paper by Chapman et al. (Biogeochemistry, doi: 10.1007/s10533-010-9474-x , 2010) reports on changes in humic colour/DOC concentrations in surface waters draining 15 upland peat catchments in the North Pennines (UK) over two decades, and exa ...
DOI:
10.1007/s10533-011-9628-5

4. Podzolisation and exportation of organic matter in black waters of the Rio Negro (upper Amazon basin, Brazil)

Author:
Marion Bardy; Sylvie Derenne; Thierry Allard; Marc F. Benedetti; Emmanuel Fritsch
Source:
Biogeochemistry 2011 v.106 no.1 pp. 71-88
ISSN:
0168-2563
Subject:
Podzols; chemical structure; color; drainage; groundwater; hydrolysis; methylation; nuclear magnetic resonance spectroscopy; organic matter; plateaus; rivers; runoff; soil horizons; soil profiles; soil sampling; Brazil
Abstract:
... In the Rio Negro basin, podzols develop at the expense of clay-depleted laterites through localized and spectacular weathering fronts. This natural process leads to the remobilization of previously accumulated organic matter (OM) which is redistributed within soil profiles and exported towards rivers, hence their typical black coloration. We investigate the fate of OM in the soil–water continuum ...
DOI:
10.1007/s10533-010-9564-9

5. 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

6. Long-term patterns in pH and colour in small acidic boreal lakes of varying hydrological and landscape settings

Author:
Arvola, Lauri; Rask, Martti; Ruuhijärvi, Jukka; Tulonen, Tiina; Vuorenmaa, Jussi; Ruoho-Airola, Tuija; Tulonen, Jouni
Source:
Biogeochemistry 2010 v.101 no.1-3 pp. 269-279
ISSN:
0168-2563
Subject:
acid deposition; climate; color; drought; lakes; landscapes; leaching; organic matter; pH; runoff; soil types; summer; watersheds; Finland
Abstract:
... Changes in water pH and colour since the late 1980s were studied in 35 small boreal lakes of varying hydrological and landscape settings but similar climate and acid deposition. The data was collected during the autumnal overturn on the annual basis except in lake with weekly sampling during the ice-free period. In addition to the deposition data information about catchment soil types as well as l ...
DOI:
10.1007/s10533-010-9473-y

7. The Siak, a tropical black water river in central Sumatra on the verge of anoxia

Author:
Rixen, Tim; Baum, Antje; Pohlmann, Thomas; Balzer, Wolfgang; Samiaji, Joko; Jose, Christine
Source:
Biogeochemistry 2008 v.90 no.2 pp. 129-140
ISSN:
0168-2563
Subject:
anaerobic conditions; color; dissolved organic carbon; hypoxia; leaching; models; oxygen; oxygen consumption; peat soils; river water; rivers; soil degradation; turbulent flow; Indonesia
Abstract:
... The Siak is a black water river in central Sumatra, Indonesia, which owes its brown color to dissolved organic matter (DOM) leached from surrounding, heavily disturbed peat soils. The dissolved organic carbon (DOC) concentrations measured during five expeditions in the Siak between 2004 and 2006 are among the highest reported world wide. The DOM decomposition appeared to be a main factor influenci ...
DOI:
10.1007/s10533-008-9239-y