Dissolved organic carbon in New Zealand peatlands

Moore, Tim R.; Clarkson, Beverley R.

doi:10.1080/00288330709509902

Cited by 27 publications

(28 citation statements)

References 17 publications

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“…The result was similar to those of some wetland-dominant landscapes (Moore 2003;Moore and Clarkson 2007). The lowest DOC concentrations were found in the surface water of the Moqu River's upper stream, while the highest DOC concentrations were found in the surface water of the peatlands.…”

Section: Results and Discussion Doc In Zoige Wetlandssupporting

confidence: 72%

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Spatial Pattern of Dissolved Organic Carbon and its Specific Ultraviolet Absorbance under Different Scales in a Wetland Complex on the Eastern Tibetan Plateau

Zhu

Chen

et al. 2014

Ekoloji

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The concentration of dissolved organic carbon (DOC) and the specific ultraviolet absorbance (SUVA) of peat, soil, and water samples collected from the Zoige wetlands on the eastern Tibetan Plateau in August 2008 were determined. The DOC concentration was 36.34 ± 15.27 mg L -1 , falling in the range of the DOC concentration in wetlands of other regions. However, the mean SUVA of the DOC was 0.55 ± 0.33 L mg -1 m -1 , showed a comparatively low aromaticity among wetlands. Significant variations of DOC concentration and their SUVA were both found under different spatial scales. The results showed that both the concentration and aromaticity of the DOC are influenced by the water table in the peatland. The significant difference of the DOC concentration among the three types of wetland showed the influence of plant growth on the DOC in the soils, and the SUVA indicated the different sources of the DOC in the different wetlands. The results also indicated that the DOC concentrations in stream water are consistent to the proportion of peatlands in the corresponding catchment.

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Section: Results and Discussion Doc In Zoige Wetlandssupporting

confidence: 72%

“…The SUVA of all samples ranged from 0.07 to 1.78 L mg -1 m -1 , which corresponds to between a 4.09 to 15.24 % aromatics content in the DOC (Weishaar et al 2003). Compared to other wetland ecosystems, the aromaticity of the DOC in the Zoige wetlands was low in general (Moore and Clarkson 2007).…”

Section: Results and Discussion Doc In Zoige Wetlandsmentioning

confidence: 99%

Spatial Pattern of Dissolved Organic Carbon and its Specific Ultraviolet Absorbance under Different Scales in a Wetland Complex on the Eastern Tibetan Plateau

Zhu

Chen

et al. 2014

Ekoloji

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“…The mean DOC concentrations of the investigated peat sites exhibit concentrations that are in the same range of published data for drained (81 to 129 mg l −1 ; Moore and Clarkson, 2007) and rewetted peatlands (70-100 mg l −1 ; Glatzel et al, 2003). Because of a lack of data from other peat pore waters, we can not compare our data with POC data from other peatlands.…”

Section: Particulate Organic Matter and Dissolved Organic Matter -Twimentioning

confidence: 42%

Particulate organic carbon (POC) in relation to other pore water carbon fractions in drained and rewetted fens in Southern Germany

et al. 2008

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Abstract. Numerous studies have dealt with carbon (C) contents in Histosols, but there are no studies quantifying the relative importance of the individual C components in pore waters. For this study, measurements were taken of all the carbon components (particulate organic carbon, POC; dissolved organic carbon, DOC; dissolved inorganic carbon, DIC; dissolved methane, CH 4 ) in the soil pore water of calcareous fens under three different water management regimes (rewetted, deeply and moderately drained). Pore water was collected weekly or biweekly (April 2004 to April 2006 at depths between 10 and 150 cm.The main results obtained were:(1) DIC (94-280 mg C l −1 ) was the main C-component. (2) POC and DOC concentrations in the pore water (14-125 mg C l −1 vs. 41-95 mg C l −1 ) were pari passu. (3) Dissolved CH 4 was the smallest C component (0.005-0.9 mg C l −1 ). Interestingly, about 30% of the POM particles were colonized by microbes indicating that they are active in the internal C turnover. Certainly, both POC and DOC fractions are essential components of the C budget of peatlands. Furthermore, dissolved CO 2 in all forms of DIC appears to be an important part of peatland C-balance.

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“…Significant heterogeneity existed between studies, indicating that a source of variation in study results was present and unaccounted for. Studies were undertaken over 2 [50], 6 [51,52], and 25 [53] months (study period not stated in [54]). …”

Section: Studies Reporting Combined Ghg Outcomesmentioning

confidence: 99%

Evaluating effects of land management on greenhouse gas fluxes and carbon balances in boreo-temperate lowland peatland systems

et al. 2014

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Background: Peatlands cover 2 to 5 percent of the global land area, while storing between 30 and 50 percent of all global soil carbon (C). Peatlands constitute a substantial sink of atmospheric carbon dioxide (CO 2 ) via photosynthesis and organic matter accumulation, but also release methane (CH 4 ), nitrous oxide (N 2 O), and CO 2 through respiration, all of which are powerful greenhouse gases (GHGs). Lowland peats in boreo-temperate regions may store substantial amounts of C and are subject to disproportionately high land-use pressure. Whilst evidence on the impacts of different land management practices on C cycling and GHG fluxes in lowland peats does exist, these data have yet to be synthesised. Here we report on the results of a Collaboration for Environmental Evidence (CEE) systematic review of this evidence. Methods: Evidence was collated through searches of literature databases, search engines, and organisational websites using tested search strings. Screening was performed on titles, abstracts and full texts using established inclusion criteria for population, intervention/exposure, comparator, and outcome key elements. Remaining relevant full texts were critically appraised and data extracted according to pre-defined strategies. Meta-analysis was performed where sufficient data were reported.

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Dissolved organic carbon in New Zealand peatlands

Cited by 27 publications

References 17 publications

Spatial Pattern of Dissolved Organic Carbon and its Specific Ultraviolet Absorbance under Different Scales in a Wetland Complex on the Eastern Tibetan Plateau

Spatial Pattern of Dissolved Organic Carbon and its Specific Ultraviolet Absorbance under Different Scales in a Wetland Complex on the Eastern Tibetan Plateau

Particulate organic carbon (POC) in relation to other pore water carbon fractions in drained and rewetted fens in Southern Germany

Evaluating effects of land management on greenhouse gas fluxes and carbon balances in boreo-temperate lowland peatland systems

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