Log in

Relevant bibliographies by topics / Dissolved organic carbon / Journal articles

Journal articles on the topic 'Dissolved organic carbon'

To see the other types of publications on this topic, follow the link: Dissolved organic carbon.

Author: Grafiati

Published: 4 June 2021

Last updated: 1 June 2024

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Dissolved organic carbon.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Gonet, S. S., and B. Debska. "Dissolved organic carbon and dissolved nitrogen in soil under different fertilization treatments." Plant, Soil and Environment 52, No. 2 (November 15, 2011): 55–63. http://dx.doi.org/10.17221/3346-pse.

Full text

Abstract:

The objective of the study was to evaluate the effects of long-term fertilization of a sandy soil with differentiated doses of cattle slurry as well as its after-effect action on the possibilities of migration of dissolved organic carbon (DOC) and dissolved nitrogen (DNt) down to deeper layers of the soil profile. DOC and DNt were extracted with borate buffer and 0.004M CaCl<sub>2</sub> solution. Evaluation of effects of cattle slurry on the content of DOC and DNt was done in comparison with mineral fertilization. It was shown that the use of cattle slurry in the doses of 100 and 200 m<sup>3</sup>/ha caused a significant increase of labile organic matter in the 0–25 and 25–50 cm layers of soil. As compared with mineral fertilization the application of slurry increased also the amounts of extracted DNt, but only in the surface layer. The DNt content in the deeper soil horizons did not depend on the kind of fertilization. Concentrations of DOC and DNt in the extracts depended not only on their content in soil but it was also modified substantially by the extractant used.

APA, Harvard, Vancouver, ISO, and other styles

2

Remeš, M., and J. Kulhavý. "Dissolved organic carbon concentrations under conditions of different forestcomposition." Journal of Forest Science 55, No. 5 (April 20, 2009): 201–7. http://dx.doi.org/10.17221/16/2009-jfs.

Full text

Abstract:

The study deals with the monitoring of dissolved organic carbon (DOC) concentrations in seepage water sampled from differently managed forest plots in the Drahanská vrchovina Upland. Simultaneously, the input of DOC in precipitation and throughfall is evaluated. Preliminary results show higher mobility level of carbon substances in forest soil in a pure spruce stand compared to mixed stand or a pure beech stand. DOC can be one of suitable characteristics to evaluate the conversion effectiveness of spruce monocultures.

APA, Harvard, Vancouver, ISO, and other styles

3

Meyer, Judy L. "Dissolved organic carbon dynamics in two subtropical blackwater rivers." Archiv für Hydrobiologie 108, no. 1 (November 25, 1986): 119–34. http://dx.doi.org/10.1127/archiv-hydrobiol/108/1986/119.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Robarts, Richard D., and Peter J. Ashton. "Dissolved organic carbon and microbial activity in a hypertrophic African reservoir." Archiv für Hydrobiologie 113, no. 4 (November 7, 1988): 519–39. http://dx.doi.org/10.1127/archiv-hydrobiol/113/1988/519.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Hansell, Dennis A. "Recalcitrant Dissolved Organic Carbon Fractions." Annual Review of Marine Science 5, no. 1 (January 3, 2013): 421–45. http://dx.doi.org/10.1146/annurev-marine-120710-100757.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Rochelle-Newall, E. J., and T. R. Fisher. "Chromophoric dissolved organic matter and dissolved organic carbon in Chesapeake Bay." Marine Chemistry 77, no. 1 (January 2002): 23–41. http://dx.doi.org/10.1016/s0304-4203(01)00073-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Tian, Xiaokang, and Siyue Li. "Quality and Biodegradation Process of Dissolved Organic Carbon in Typical Fresh-Leaf Leachate in the Wuhan Urban Forest Park." Water 16, no. 4 (February 12, 2024): 558. http://dx.doi.org/10.3390/w16040558.

Full text

Abstract:

The study investigated the leaching and biodegradation of dissolved organic carbon in leaf leachates from typical fresh leaves in the Wuhan Urban Forest Park, Central China. The fresh leaf-leached dissolved organic carbon quality and biodegradability, as well as their potential determinants, were examined for 12 major tree species, including deciduous trees and shrubs. A 28-day indoor incubation was conducted at two temperature conditions of 20 °C and 30 °C. Sampling was conducted within the planned time frame for experimental measurements, and a first-order kinetic model for dissolved organic carbon degradation was fitted. The utilization of the fir tree as the predominant deciduous species and cuckoo as the primary shrubs provided advantages in increasing the carbon sequestration capacity of urban forests. There was no significant difference in the degradation rate of the leaching solution at different temperatures, but the k value of the first-order kinetic model was different. At 20 °C, the dissolved organic carbon degradation rate was positively correlated with electrical conductivity and total dissolved nitrogen, while it was negatively correlated with the humification index and ratio of dissolved organic carbon to total dissolved nitrogen. At 30 °C, the degradation rate of dissolved organic carbon showed a positive correlation with total dissolved phosphorus and total dissolved nitrogen, while it was negatively correlated with the humification index, ratio of dissolved organic carbon to total dissolved nitrogen and ratio of dissolved organic carbon to total dissolved phosphorus.

APA, Harvard, Vancouver, ISO, and other styles

8

Sketchell, Joanne, Hans G. Peterson, and Nick Christofi. "Dissolved Organic Carbon Removal from a Prairie Water Supply Using Ozonation and Biological Activated Carbon." Water Quality Research Journal 34, no. 4 (November 1, 1999): 615–32. http://dx.doi.org/10.2166/wqrj.1999.032.

Full text

Abstract:

Abstract Large quantities of dissolved organic carbon in prairie surface water reservoirs make sustainable treatment quite challenging. Organic material is a precursor for the formation of disinfection by-products. Here, ozonation and biological activated carbon filtration were used as methods for removing dissolved organic carbon from the water of a small prairie reservoir used as a drinking water source. Biofiltration alone yielded significant reductions in dissolved organic carbon, colour, total trihalomethanes and chlorine demand. When ozonation preceded biofiltration, the increased proportion of biodegradable dissolved organic carbon allowed for significantly greater (p<0.05

APA, Harvard, Vancouver, ISO, and other styles

9

Escobar, Isabel C., and Andrew A. Randall. "Assimilable organic carbon (AOC) and biodegradable dissolved organic carbon (BDOC):." Water Research 35, no. 18 (December 2001): 4444–54. http://dx.doi.org/10.1016/s0043-1354(01)00173-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

McCracken, Kimberly L., William H. McDowell, Robert D. Harter, and Christine V. Evans. "Dissolved Organic Carbon Retention in Soils." Soil Science Society of America Journal 66, no. 2 (2002): 563. http://dx.doi.org/10.2136/sssaj2002.0563.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

McCracken, Kimberly L., William H. McDowell, Robert D. Harter, and Christine V. Evans. "Dissolved Organic Carbon Retention in Soils." Soil Science Society of America Journal 66, no. 2 (March 2002): 563–68. http://dx.doi.org/10.2136/sssaj2002.5630.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Chen, Robert F., Brian Fry, Chuck S. Hopkinson, Daniel J. Repeta, and Edward T. Peltzer. "Dissolved organic carbon on Georges Bank." Continental Shelf Research 16, no. 4 (April 1996): 409–20. http://dx.doi.org/10.1016/0278-4343(95)00026-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Romankevich, E. A., and S. V. Ljutsarev. "Dissolved organic carbon in the ocean." Marine Chemistry 30 (January 1990): 161–78. http://dx.doi.org/10.1016/0304-4203(90)90068-n.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Hansell, Dennis A. "Dissolved Organic Carbon Reference Material Program." Eos, Transactions American Geophysical Union 86, no. 35 (2005): 318. http://dx.doi.org/10.1029/2005eo350003.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Porcal, Petr, Peter J. Dillon, and Lewis A. Molot. "Temperature Dependence of Photodegradation of Dissolved Organic Matter to Dissolved Inorganic Carbon and Particulate Organic Carbon." PLOS ONE 10, no. 6 (June 24, 2015): e0128884. http://dx.doi.org/10.1371/journal.pone.0128884.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Fiebig, Douglas M. "Groundwater discharge and its contribution of dissolved organic carbon to an upland stream." Archiv für Hydrobiologie 134, no. 2 (July 20, 1995): 129–55. http://dx.doi.org/10.1127/archiv-hydrobiol/134/1995/129.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Sundh, Ingvar. "Biochemical composition of dissolved organic carbon released from natural communities of lake phytoplankton." Archiv für Hydrobiologie 125, no. 3 (October 19, 1992): 347–69. http://dx.doi.org/10.1127/archiv-hydrobiol/125/1992/347.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Wang, Shutao, Xingwen Zhang, Zhi-Wu Wang, Xiangkun Li, and Jun Ma. "In-depth characterization of secondary effluent from a municipal wastewater treatment plant located in Northern China for advanced treatment." Water Science and Technology 69, no. 7 (January 25, 2014): 1482–88. http://dx.doi.org/10.2166/wst.2014.040.

Full text

Abstract:

This study provided insight into the characterization of secondary effluent from a wastewater treatment plant located in northeastern China. The secondary effluent was separated into three fractions, the dissolved, the near-colloidal and the suspended, to study their individual characteristics. It revealed that most of the organics in the secondary effluent existed in the dissolved form, accounting for 78.1–86.5% of the total chemical oxygen demand and 82.6–86.6% of the total organic carbon. Results from the molecular weight distribution study further indicated that organics with MW < 1k Da constituted 56.3–62.7% of total organics. Moreover, the particle size distribution study suggested that particles between 2.0 and 6.8 μm in diameter made up 80.0% of the total suspended solids. Both biological oxygen demand/chemical oxygen demand and biological dissolved organic carbon/dissolved organic carbon were measured ranging from 0.2 to 0.3, suggesting the most secondary effluent organics were biologically refractory. This conclusion was further strengthened by the functional groups information obtained from the GC/MS (gas chromatography/mass spectrometry) analysis. The characteristics information revealed from this study will help the design and selection of water quality-specific tertiary treatment technologies for secondary effluent water purification and reuse.

APA, Harvard, Vancouver, ISO, and other styles

19

Kumari, Radha Karuna, and P. M. Mohan. "Review on Dissolved Organic Carbon and Particulate Organic Carbon in Marine Environment." ILMU KELAUTAN: Indonesian Journal of Marine Sciences 23, no. 1 (March 3, 2018): 25. http://dx.doi.org/10.14710/ik.ijms.23.1.25-36.

Full text

Abstract:

Quantification the Dissolved and Particulate organic carbon in marine waters is an essential step towards ecosystem modeling and understanding carbon sequestration processes. A detailed view of estimated and recorded carbon concentration from Arctic to Antarctic is the prime goal of this review. This review compiles some of the important research work carried out in quantifying the organic carbon available in off shore and open waters and in coral reef environment. The cited literatures were collected, grouped and carefully analyzed to give a comprehensive view on current status of marine environment with regard to distribution of dissolved and particulate organic carbon. Keywords: DOC, POC, continental shelf waters, open sea waters, coral reef environment.

APA, Harvard, Vancouver, ISO, and other styles

20

Kwon, Eunkwang, Soohyung Park, and Wontae Lee. "Comparison of Coal-, Coconut-, and Wood-Based Activated Carbons for Removal of Organic Matters in Wastewater Treatment Plant Effluent." Journal of Korean Society of Environmental Engineers 43, no. 4 (April 30, 2021): 257–64. http://dx.doi.org/10.4491/ksee.2021.43.4.257.

Full text

Abstract:

Objectives : This study investigated the removal of dissolved organic materials by coal-, coconut-, and wood-based activated carbons to assess the addition of an activated carbon process to a publicly owned treatment works (POTW).Methods : We assessed the removal of total organic carbon (TOC) by each process in the POTW, and examined the removal of TOC and UVA254 upon adding different amounts of coal-, coconut- and wood-based activated carbons (50, 100, 200, 300, and 400 mg/L) with various contact time (10, 20, 30, 60, 120 min).Results and Discussion : Approximately 80% of TOC was removed throughout the POTW compared to the influent. The activated carbon adsorption tests of coagulated wastewater revealed that the removal rate of TOC and UVA254 from coal-based activated carbon was higher than those of coconut-based and wood-based activated carbons. The removal rate of dissolved organic materials was highest in ozone treated wastewater in all types of activated carbons, followed by ultraviolet disinfected wastewater and coagulated wastewater.Conclusions : It was possible to remove an additional 35-55% of dissolved organic materials upon addition of activated carbon to the treated wastewater although the removal depends on the material of the activated carbon, the injection amount, and the contact time. If an activated carbon process is adopted to the POTW, it can meet the effluent water quality standards (TOC).

APA, Harvard, Vancouver, ISO, and other styles

21

Rochelle-Newall, E. J. "Dynamics of chromophoric dissolved organic matter and dissolved organic carbon in experimental mesocosms." International Journal of Remote Sensing 20, no. 3 (January 1999): 627–41. http://dx.doi.org/10.1080/014311699213389.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Stubbins, Aron, and Thorsten Dittmar. "Low volume quantification of dissolved organic carbon and dissolved nitrogen." Limnology and Oceanography: Methods 10, no. 5 (May 2012): 347–52. http://dx.doi.org/10.4319/lom.2012.10.347.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

S. I. Khan, S. Siddiqui, and M. Ghous. "FORESTRY EFFECT ON DISSOLVED ORGANIC CARBON IN WATERS OF PEATLANDS OF DEOSEI NATIONAL PARK, PAKISTAN." Pakistan Journal of Science 75, no. 04 (December 1, 2023): 750–56. http://dx.doi.org/10.57041/pjs.v75i04.1039.

Full text

Abstract:

Peatlands are recognized for their ecological significance and vital role in global carbon sequestration and are facing threats worldwide. This research links plantation forestry to water color due to dissolved organic carbon in the waters of the peatlands of Deosai National Park, District Skardu, Gilgit-Baltistan, Pakistan, in the context of water quality and its sustainable conservation. The research question of the study is, do plantation forests enhance dissolved organic carbon concentration? Monitoring of the amounts of dissolved organic carbon in seepage water taken from peatlands and forests in Gilgit-Baltistan’s Deosai National Park provides an answer to this question. The results depict a lower concentration level of dissolved organic carbon in forest samples as compared to peatland samples from Deosai National Park waters. Because the litter in mature forest crops is more consolidated, less dissolved organic carbon leaches. Further studies that focus on a more detailed sampling regime for data collection are required.

APA, Harvard, Vancouver, ISO, and other styles

24

Fleming, N. K., and J. W. Cox. "Carbon and phosphorus losses from dairy pasture in South Australia." Soil Research 39, no. 5 (2001): 969. http://dx.doi.org/10.1071/sr00042.

Full text

Abstract:

Runoff (overland flow and A/B horizon interflow) was measured from 2 grazed dairy pastures at Flaxley, South Australia, from 1996 to 1998. Runoff ranged from 0.4% to 10% of annual rainfall and >90% of this was overland flow. Phosphorus and carbon were measured in runoff. As much as 2.3 kg/ha of phosphorus and 10.7 kg/ha of total dissolved carbon were lost from the subcatchments in the wettest year. Over the study period, 98% of total phosphorus and 86% of total dissolved carbon were lost in overland flow. Around 45% of phosphorus was dissolved and 69% of total dissolved carbon was dissolved organic carbon. The proportion of phosphorus present in the particulate form decreased during each runoff season, and was highest in the wettest year. There was no consistent trend in the proportion of total dissolved carbon present as dissolved organic carbon because the factors found to affect dissolved organic carbon loss were different from those affecting dissolved inorganic carbon loss. Predictive relationships based on factors such as the time of year when the storm occurred and runoff volume have been developed from the 3 years of data and they explain a high proportion of variability of phosphorus and carbon loads.

APA, Harvard, Vancouver, ISO, and other styles

25

Ziolkowski, L. A., and E. R. M. Druffel. "Aged black carbon identified in marine dissolved organic carbon." Geophysical Research Letters 37, no. 16 (August 2010): n/a. http://dx.doi.org/10.1029/2010gl043963.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Crittenden, John C., Kartik Vaitheeswaran, David W. Hand, Elaine W. Howe, E. Marco Aieta, Carol H. Tate, Michael J. McGuire, and Marshall K. Davis. "Removal of dissolved organic carbon using granular activated carbon." Water Research 27, no. 4 (April 1993): 715–21. http://dx.doi.org/10.1016/0043-1354(93)90181-g.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Collier, Kevin, Richard J. Jackson, and Michael J. Winterbourn. "Dissolved organic carbon dynamics of developed and undeveloped wetland catchments in Westland, New Zealand." Archiv für Hydrobiologie 117, no. 1 (November 20, 1989): 21–38. http://dx.doi.org/10.1127/archiv-hydrobiol/117/1989/21.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Song, Ruipeng, Xiaomeng Han, Qifan Yang, Zhiheng Zheng, and Dan Xi. "Effects of Understory Vegetation Heterogeneity on Soil Organic Carbon Components in Cunninghamia lanceolata Plantation." Land 11, no. 12 (December 15, 2022): 2300. http://dx.doi.org/10.3390/land11122300.

Full text

Abstract:

As one of the important factors affecting forest soil organic carbon stocks, the effect of understory vegetation types on soil organic carbon and its components was explored to provide a theoretical basis for understory vegetation management and sustainable management in plantation forests. In order to determine the characteristics of soil organic carbon and its components under different understory vegetation types in Subtropical Cunninghamia lanceolata plantation, Indocalamus tessellatus, Diplazium donianum and Oreocnide frutescenssp were taken as research objects. The mass fractions of total organic carbon, recalcitrant organic carbon, readily oxidizable organic carbon, microbial biomass carbon and dissolved organic carbon in each soil layer at 0–10, 10–20, 20–40 and 40–60 cm were measured, and the change characteristics of soil organic carbon components were also studied and compared. The results showed that: (1) The mass fractions of total organic carbon, recalcitrant organic carbon, readily oxidizable organic carbon and microbial biomass carbon in the soils of the three understory vegetation types showed significant decreasing trends along the profile, while the mass fraction of dissolved organic carbon in 0–40 cm soil layer was significantly higher than those in 40–60 cm soil layer. (2) The mass fraction of total organic carbon (5.98–20.66 g·kg−1) had no significant difference among understory vegetation types. The mass fraction and proportion of microbial biomass carbon were higher in the 0–60 cm soil layer under cover of Indocalamus tessellatus, and the mass fractions of recalcitrant organic carbon in the 20–40 cm soil layer under Indocalamus tessellatus cover (8.57 g·kg−1) was significantly higher than that of Oreocnide frutescenssp (5.73 g·kg−1). The soil layer of 0–20 cm under the Diplazium donianum community has a higher mass fraction and proportion of readily oxidizable organic carbon. (3) Correlation analysis showed that soil organic carbon and its components were positively correlated with total nitrogen, dissolved total nitrogen, dissolved organic nitrogen and microbial biomass nitrogen. There is a significant positive correlation among the components of soil organic carbon. (4) Redundancy analysis showed that soil bulk density (41.6%), microbial biomass nitrogen (41.2%), dissolved total nitrogen (43.7%), total nitrogen (9.9%), dissolved organic nitrogen (43.6%) and pH (6.6%) were the most significant environmental factors affecting organic carbon components in four soil layers. Understory vegetation type can influence the distribution characteristics of soil organic carbon components in Cunninghamia lanceolata plantation, and soil active organic carbon components are more susceptible to the influence of understory vegetation type than total organic carbon and recalcitrant organic carbon.

APA, Harvard, Vancouver, ISO, and other styles

29

Spencer, Robert G. M., Kenna D. Butler, and George R. Aiken. "Dissolved organic carbon and chromophoric dissolved organic matter properties of rivers in the USA." Journal of Geophysical Research: Biogeosciences 117, G3 (July 3, 2012): n/a. http://dx.doi.org/10.1029/2011jg001928.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Zhang, Feng, Shuai Li, Chang Qing Liu, Xing Sheng Kang, and Yan Li. "The Component and Characteristic Analysis of Organic Matters in Inflow Water of one Wastewater Treatment Plant in Qingdao." Advanced Materials Research 518-523 (May 2012): 2886–90. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.2886.

Full text

Abstract:

The concentration of soluble inert organics and the mass distribution of organic matter in inflow wastewater of one wastewater treatment plant (WWTP) in Qingdao city in China were studied in this paper. The results showed that the concentration of soluble inert organics in the influent which cannot be degraded by microbe was about 20 mg/L, accounts for 2%～5% of all dissolved organic matter. The small organic molecules (<1 ku) took up the largest proportion of all organics in influent, which was about 40% of dissolved organic carbon (DOC). Moreover, the residual organic molecules after biological treatment process and coagulation sedimentation process might be transformed into disinfection by-products (DBPs) by chlorination in advanced treatment process, so the combined process of ozone and activated carbon was suggested to be used to remove the small organic molecules in inflow water in this WWTP.

APA, Harvard, Vancouver, ISO, and other styles

31

McMurtry, Michael J., Donna L. Wales, Wolfgang A. Scheider, Gail L. Beggs, and Patricia E. Dimond. "Relationship of Mercury Concentrations in Lake Trout (Salvelinus namaycush) and Smallmouth Bass (Micropterus dolomieui) to the Physical and Chemical Characteristics of Ontario Lakes." Canadian Journal of Fisheries and Aquatic Sciences 46, no. 3 (March 1, 1989): 426–34. http://dx.doi.org/10.1139/f89-057.

Full text

Abstract:

Concentrations of mercury in dorsal muscle tissue of lake trout (Salvelinus namaycush) from Ontario lakes were positively correlated with variables indicating lake dystrophy (dissolved organic carbon, colour, iron, transparency) and were also correlated with watershed area and lake area. Stepwise multiple regression selected dissolved organic carbon as the only variable which explained a significant amount of variation (37%) in mercury concentrations in lake trout. The relationship between dissolved organic carbon and mercury appeared to be strongest in the group of lakes with values of dissolved organic carbon less than 4.0 mg∙L−1. In contrast, mercury concentrations in smallmouth bass (Micropterus dolomieui) were correlated with variables reflecting both water hardness (magnesium, calcium, conductivity) and acidity (pH, alkalinity). The relationship was inverse for the water hardness variables and positive for acidity. Stepwise regression identified three variables significant in explaining variation in mercury in smallmouth bass: calcium, dissolved organic carbon, and latitude. Mechanisms that may explain the effects of organic matter, water hardness, and acidity on mercury accumulation by fish are discussed.

APA, Harvard, Vancouver, ISO, and other styles

32

Barrón, C., E. T. Apostolaki, and C. M. Duarte. "Dissolved organic carbon release by marine macrophytes." Biogeosciences Discussions 9, no. 2 (February 3, 2012): 1529–55. http://dx.doi.org/10.5194/bgd-9-1529-2012.

Full text

Abstract:

Abstract. Estimates of dissolved organic carbon (DOC) release by marine macrophyte communities (seagrass meadows and macroalgal beds) were obtained experimentally using in situ benthic chambers. The effect of light availability on DOC release by macrophyte communities was examined in two communities both by comparing net DOC release under light and dark, and by examining the response of net DOC release to longer-term (days) experimental shading of the communities. All most 85% of the seagrass communities and almost all of macroalgal communities examined acted as net sources of DOC. There was a weak tendency for higher DOC fluxes under light than under dark conditions in seagrass meadow. There is no relationship between net DOC fluxes and gross primary production (GPP) and net community production (NCP), however, this relationship is positive between net DOC fluxes and community respiration. Net DOC fluxes were not affected by shading of a T. testudinum community in Florida for 5 days, however, shading of a mixed seagrass meadow in the Philippines led to a significant reduction on the net DOC release when shading was maintained for 6 days compared to only 2 days of shading. Based on published and unpublished results we also estimate the global net DOC production by marine macrophytes. The estimated global net DOC flux, and hence export, from marine macrophyte is about 0.197 ± 0.015 Pg C yr−1 or 0.212 ± 0.016 Pg C yr−1 depending if net DOC flux by seagrass meadows was estimated by taking into account the low or high global seagrass area, respectively.

APA, Harvard, Vancouver, ISO, and other styles

33

Thomas, DN, and RJ Lara. "Photodegradation of algal derived dissolved organic carbon." Marine Ecology Progress Series 116 (1995): 309–10. http://dx.doi.org/10.3354/meps116309.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Sharp, Jonathan. "The Dissolved Organic Carbon Controversy: An Update." Oceanography 6, no. 2 (1993): 45–50. http://dx.doi.org/10.5670/oceanog.1993.13.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Moore, Tim R., and Beverley R. Clarkson. "Dissolved organic carbon in New Zealand peatlands." New Zealand Journal of Marine and Freshwater Research 41, no. 1 (March 2007): 137–41. http://dx.doi.org/10.1080/00288330709509902.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Hansell, Dennis A., and Craig A. Carlson. "Net community production of dissolved organic carbon." Global Biogeochemical Cycles 12, no. 3 (September 1998): 443–53. http://dx.doi.org/10.1029/98gb01928.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Vila-Costa, Maria, Elena Cerro-Gálvez, Alicia Martínez-Varela, Gemma Casas, and Jordi Dachs. "Anthropogenic dissolved organic carbon and marine microbiomes." ISME Journal 14, no. 10 (July 9, 2020): 2646–48. http://dx.doi.org/10.1038/s41396-020-0712-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Le Clercq, M., J. Van der Plicht, H. A. J. Meijer, and H. J. W. De Baar. "Radiocarbon in marine dissolved organic carbon (DOC)." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 123, no. 1-4 (March 1997): 443–46. http://dx.doi.org/10.1016/s0168-583x(96)00721-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Wangersky, Peter J. "Dissolved organic carbon methods: a critical review." Marine Chemistry 41, no. 1-3 (January 1993): 61–74. http://dx.doi.org/10.1016/0304-4203(93)90106-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Mertens, Jan, Jan Vanderborght, Roy Kasteel, Thomas Pütz, Roel Merckx, Jan Feyen, and Erik Smolders. "Dissolved Organic Carbon Fluxes under Bare Soil." Journal of Environmental Quality 36, no. 2 (March 2007): 597–606. http://dx.doi.org/10.2134/jeq2006.0368.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Khan, Eakalak, Stacey King, Roger W. Babcock Jr, and Michael K. Stenstrom. "Factors Influencing Biodegradable Dissolved Organic Carbon Measurement." Journal of Environmental Engineering 125, no. 6 (June 1999): 514–21. http://dx.doi.org/10.1061/(asce)0733-9372(1999)125:6(514).

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Rutherford, J. E., and H. B. N. Hynes. "Dissolved organic carbon in streams and groundwater." Hydrobiologia 154, no. 1 (November 1987): 33–48. http://dx.doi.org/10.1007/bf00026829.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Yamashita, Youhei, Daiki Kojima, Natsumi Yoshida, and Hideaki Shibata. "Relationships between dissolved black carbon and dissolved organic matter in streams." Chemosphere 271 (May 2021): 129824. http://dx.doi.org/10.1016/j.chemosphere.2021.129824.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

D’Amario, Sarah C., and Marguerite A. Xenopoulos. "Linking dissolved carbon dioxide to dissolved organic matter quality in streams." Biogeochemistry 126, no. 1-2 (October 3, 2015): 99–114. http://dx.doi.org/10.1007/s10533-015-0143-y.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Yuan, Tao, Ping Lu, Yijun Liu, Feng Ren, and Haoran Zhang. "Distribution Characteristics and Influence Factors of Carbon in Coal Mining Subsidence Wetland." Sustainability 15, no. 9 (April 23, 2023): 7042. http://dx.doi.org/10.3390/su15097042.

Full text

Abstract:

Coal mining subsidence wetlands, as important supplementary resources for wetlands, are of great significance for regulating climate change. This study investigated the distribution and influencing factors of carbon in the overlying water and sediment of coal mining subsidence wetlands in Xuzhou, China, during low-water, high-water, and dry seasons. The results revealed significant spatial and temporal variations in the physicochemical properties of the wetlands, with water hypoxia and a trend toward eutrophication due to excess nitrogen and phosphorus. Dissolved organic carbon (WDOC) and dissolved inorganic carbon (WDIC) in water exhibited opposite temporal trends, while sediment organic carbon (SOC) and dissolved organic carbon (SDOC) showed similar temporal and spatial variations. Inorganic carbon in sediment (SIC) and dissolved inorganic carbon (SDIC) showed consistent temporal changes but significant spatial differences. There was a significant positive correlation between WDOC and SDOC, and WDIC was positively correlated with SDOC and SDIC, indicating the interconnection and transformation of dissolved carbon between water and sediment. WDIC was strongly correlated with water temperature and dissolved oxygen, while WDOC was weakly correlated with the physicochemical properties of water. Overall, these findings contribute to our understanding of the carbon distribution and cycling in coal mining subsidence wetlands, which are crucial supplementary resources to natural wetlands for regulating climate change.

APA, Harvard, Vancouver, ISO, and other styles

46

Schartau, M., A. Engel, J. Schröter, S. Thoms, C. Völker, and D. Wolf-Gladrow. "Modelling carbon overconsumption and the formation of extracellular particulate organic carbon." Biogeosciences 4, no. 4 (July 2, 2007): 433–54. http://dx.doi.org/10.5194/bg-4-433-2007.

Full text

Abstract:

Abstract. During phytoplankton growth a fraction of dissolved inorganic carbon (DIC) assimilated by phytoplankton is exuded in the form of dissolved organic carbon (DOC), which can be transformed into extracellular particulate organic carbon (POC). A major fraction of extracellular POC is associated with carbon of transparent exopolymer particles (TEP; carbon content = TEPC) that form from dissolved polysaccharides (PCHO). The exudation of PCHO is linked to an excessive uptake of DIC that is not directly quantifiable from utilisation of dissolved inorganic nitrogen (DIN), called carbon overconsumption. Given these conditions, the concept of assuming a constant stoichiometric carbon-to-nitrogen (C:N) ratio for estimating new production of POC from DIN uptake becomes inappropriate. Here, a model of carbon overconsumption is analysed, combining phytoplankton growth with TEPC formation. The model describes two modes of carbon overconsumption. The first mode is associated with DOC exudation during phytoplankton biomass accumulation. The second mode is decoupled from algal growth, but leads to a continuous rise in POC while particulate organic nitrogen (PON) remains constant. While including PCHO coagulation, the model goes beyond a purely physiological explanation of building up carbon rich particulate organic matter (POM). The model is validated against observations from a mesocosm study. Maximum likelihood estimates of model parameters, such as nitrogen- and carbon loss rates of phytoplankton, are determined. The optimisation yields results with higher rates for carbon exudation than for the loss of organic nitrogen. It also suggests that the PCHO fraction of exuded DOC was 63±20% during the mesocosm experiment. Optimal estimates are obtained for coagulation kernels for PCHO transformation into TEPC. Model state estimates are consistent with observations, where 30% of the POC increase was attributed to TEPC formation. The proposed model is of low complexity and is applicable for large-scale biogeochemical simulations.

APA, Harvard, Vancouver, ISO, and other styles

47

Schartau, M., A. Engel, J. Schröter, S. Thoms, C. Völker, and D. Wolf-Gladrow. "Modelling carbon overconsumption and the formation of extracellular particulate organic carbon." Biogeosciences Discussions 4, no. 1 (January 24, 2007): 13–67. http://dx.doi.org/10.5194/bgd-4-13-2007.

Full text

Abstract:

Abstract. During phytoplankton growth a fraction of dissolved inorganic carbon (DIC) assimilated by phytoplankton is exuded in the form of dissolved organic carbon (DOC), which can be transformed into extracellular particulate organic carbon (POC). A major fraction of extracellular POC is associated with carbon of transparent exopolymer particles (TEP; carbon content = TEPC) that form from dissolved polysaccharides (PCHO). The exudation of PCHO is linked to an excessive uptake of DIC that is not directly quantifiable from utilisation of dissolved inorganic nitrogen (DIN), called carbon overconsumption. Given these conditions, the concept of assuming a constant stoichiometric carbon-to-nitrogen (C:N) ratio for estimating new production of POC from DIN uptake becomes inappropriate. Here, a model of carbon overconsumption is analysed, combining phytoplankton growth with TEPC formation. The model describes two modes of carbon overconsumption. The first mode is associated with DOC exudation during phytoplankton biomass accumulation. The second mode is decoupled from algal growth, but leads to a continuous rise in POC while particulate organic nitrogen (PON) remains constant. While including PCHO coagulation, the model goes beyond a purely physiological explanation of building up carbon rich particulate organic matter (POM). The model is validated against observations from a mesocosm study. Maximum likelihood estimates of model parameters, such as nitrogen- and carbon loss rates of phytoplankton, are determined. The optimisation yields results with higher rates for carbon exudation than for the loss of organic nitrogen. It also suggests that the PCHO fraction of exuded DOC was 63±20% during the mesocosm experiment. Optimal estimates are obtained for coagulation kernels for PCHO transformation into TEPC. Model state estimates are consistent with observations, where 30% of the POC increase was attributed to TEPC formation. The proposed model is of low complexity and is applicable for large-scale biogeochemical simulations.

APA, Harvard, Vancouver, ISO, and other styles

48

Belzile, Claude, John A. E. Gibson, and Warwick F. Vincent. "Colored dissolved organic matter and dissolved organic carbon exclusion from lake ice: Implications for irradiance transmission and carbon cycling." Limnology and Oceanography 47, no. 5 (September 2002): 1283–93. http://dx.doi.org/10.4319/lo.2002.47.5.1283.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Lee, Cindy, and Susan M. Henrichs. "How the nature of dissolved organic matter might affect the analysis of dissolved organic carbon." Marine Chemistry 41, no. 1-3 (January 1993): 105–20. http://dx.doi.org/10.1016/0304-4203(93)90109-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Kobierski, Mirosław, Krystyna Kondratowicz-Maciejewska, and Katarzyna Kociniewska. "Soil Quality Assessment of Phaeozems and Luvisols from the Kujawy Region (Central Poland) / Ocena cech użytkowych czarnych ziem i gleb płowych rejonu Kujaw." Soil Science Annual 66, no. 3 (September 1, 2015): 111–18. http://dx.doi.org/10.1515/ssa-2015-0026.

Full text

Abstract:

Abstract To assess the soil quality of Phaeozems and Luvisols from Kujawy region (Kujawy-Pomerania Province, Poland), the soil quality indicators such as: content of organic matter and nutrients, as well as bulk density were used. The soils showed similar inherent properties (soil texture, depth to parent material, type of clay) and management practices (tillage, crop rotation, nutrient application). The following properties were determined: bulk density, grain size composition, exchangeable acidity, concentration of available forms of potassium, phosphorus and magnesium, and the content of total organic carbon (TOC) and nitrogen (Nt). The amounts of dissolved organic carbon (DOC) and dissolved nitrogen (DN) were measured in the solution obtained after extraction with 0.004 M CaCl2. The stock of TOCs, Nts and DOCs, and DNs were calculated. The total organic carbon content in surface horizon of Phaeozems was significant higher (13.9-20.1 g·kg-1) than in Ap horizon of Luvisols (8.3-11.0 g·kg-1), which is a consequence of their origin. The stock of organic carbon in Ap horizon fell within 5.89 to 8.49 kg·m2 in Phaeozems and 3.80 to 4.81 kg·m2 in Luvisols. Although Phaeozems demonstrated a significant higher content of TOC, as compared with Luvisols, the amount of dissolved organic carbon was similar in both soil types, which points to a higher share of DOC in the total organic carbon content in Luvisols (up to 17.5% in Et horizon). The amounts of dissolved organic carbon and dissolved nitrogen and their stock do not depend on the type of soils if the management practices are similar.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!