RAIN project: Role of organic acids in moderating ph change following reduction in acid deposition
Abstract The RAIN project (Reversing Acidification In Norway) entails catchment-scale experimental manipulations to investigate the effect on water and soil chemistry of drastic changes in precipitation chemistry. At Risdalsheia in southernmost Norway wet deposition of acid is excluded from a 860-$...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Wright, Richard F. [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1989 |
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| Schlagwörter: |
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| Systematik: |
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| Anmerkung: |
© Kluwer Academic Publishers 1989 |
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| Übergeordnetes Werk: |
Enthalten in: Water, air & soil pollution - Kluwer Academic Publishers, 1971, 46(1989), 1-4 vom: März, Seite 251-259 |
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| Übergeordnetes Werk: |
volume:46 ; year:1989 ; number:1-4 ; month:03 ; pages:251-259 |
| Links: |
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| DOI / URN: |
10.1007/BF00192861 |
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| Katalog-ID: |
OLC2084444748 |
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| 520 | |a Abstract The RAIN project (Reversing Acidification In Norway) entails catchment-scale experimental manipulations to investigate the effect on water and soil chemistry of drastic changes in precipitation chemistry. At Risdalsheia in southernmost Norway wet deposition of acid is excluded from a 860-$ m^{2} $ headwater catchment by means of a roof and “clean” precipitation is added beneath. Four years of acid exclusion (through June 1988) have resulted in lower concentrations of the strong acid anions $ NO_{3} $ (from 35 to 7 ueq $ L^{-1} $) and $ SO_{4} $ (from 110 to 53 ueq $ L^{-1} $) in runoff. The decline in strong acid anion concentrations has been compensated partially by a decrease in concentrations of base cations (55%) and partially by an increase in alkalinity (45%). pH has increased only slightly from 4.0 to 4.1. Organic acids have become increasingly important for the pH of runoff. Runoff from the shallow organic soils contains 10 to 20 mg C $ L^{-1} $ total organic carbon (TOC). The concentration of organic anions (estimated from the ionic balance) has increased from about 22 ueq $ L^{-1} $ in 1984 to 49 ueq $ L^{-1} $ in 1987. This increase is due to increased dissociation of organic acids and not to change in TOC concentrations. The organic C in these acid samples apparently has a maximum charge density of about 4.5 ueq mg $ C^{-1} $ and pK of about 4. | ||
| 650 | 4 | |a Organic Acid | |
| 650 | 4 | |a Total Organic Carbon | |
| 650 | 4 | |a Alkalinity | |
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| 650 | 4 | |a Base Cation | |
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10.1007/BF00192861 doi (DE-627)OLC2084444748 (DE-He213)BF00192861-p DE-627 ger DE-627 rakwb eng 570 333.7 VZ 12 13 ssgn BIODIV DE-30 fid ZC 7520 VZ rvk ZC 7520 VZ rvk Wright, Richard F. verfasserin aut RAIN project: Role of organic acids in moderating ph change following reduction in acid deposition 1989 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 1989 Abstract The RAIN project (Reversing Acidification In Norway) entails catchment-scale experimental manipulations to investigate the effect on water and soil chemistry of drastic changes in precipitation chemistry. At Risdalsheia in southernmost Norway wet deposition of acid is excluded from a 860-$ m^{2} $ headwater catchment by means of a roof and “clean” precipitation is added beneath. Four years of acid exclusion (through June 1988) have resulted in lower concentrations of the strong acid anions $ NO_{3} $ (from 35 to 7 ueq $ L^{-1} $) and $ SO_{4} $ (from 110 to 53 ueq $ L^{-1} $) in runoff. The decline in strong acid anion concentrations has been compensated partially by a decrease in concentrations of base cations (55%) and partially by an increase in alkalinity (45%). pH has increased only slightly from 4.0 to 4.1. Organic acids have become increasingly important for the pH of runoff. Runoff from the shallow organic soils contains 10 to 20 mg C $ L^{-1} $ total organic carbon (TOC). The concentration of organic anions (estimated from the ionic balance) has increased from about 22 ueq $ L^{-1} $ in 1984 to 49 ueq $ L^{-1} $ in 1987. This increase is due to increased dissociation of organic acids and not to change in TOC concentrations. The organic C in these acid samples apparently has a maximum charge density of about 4.5 ueq mg $ C^{-1} $ and pK of about 4. Organic Acid Total Organic Carbon Alkalinity Organic Anion Base Cation Enthalten in Water, air & soil pollution Kluwer Academic Publishers, 1971 46(1989), 1-4 vom: März, Seite 251-259 (DE-627)12929134X (DE-600)120499-3 (DE-576)014472643 0049-6979 nnns volume:46 year:1989 number:1-4 month:03 pages:251-259 https://doi.org/10.1007/BF00192861 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-FOR SSG-OLC-IBL SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_40 GBV_ILN_47 GBV_ILN_70 GBV_ILN_601 GBV_ILN_2006 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4309 GBV_ILN_4311 GBV_ILN_4313 GBV_ILN_4314 GBV_ILN_4315 GBV_ILN_4325 ZC 7520 ZC 7520 AR 46 1989 1-4 03 251-259 |
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10.1007/BF00192861 doi (DE-627)OLC2084444748 (DE-He213)BF00192861-p DE-627 ger DE-627 rakwb eng 570 333.7 VZ 12 13 ssgn BIODIV DE-30 fid ZC 7520 VZ rvk ZC 7520 VZ rvk Wright, Richard F. verfasserin aut RAIN project: Role of organic acids in moderating ph change following reduction in acid deposition 1989 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 1989 Abstract The RAIN project (Reversing Acidification In Norway) entails catchment-scale experimental manipulations to investigate the effect on water and soil chemistry of drastic changes in precipitation chemistry. At Risdalsheia in southernmost Norway wet deposition of acid is excluded from a 860-$ m^{2} $ headwater catchment by means of a roof and “clean” precipitation is added beneath. Four years of acid exclusion (through June 1988) have resulted in lower concentrations of the strong acid anions $ NO_{3} $ (from 35 to 7 ueq $ L^{-1} $) and $ SO_{4} $ (from 110 to 53 ueq $ L^{-1} $) in runoff. The decline in strong acid anion concentrations has been compensated partially by a decrease in concentrations of base cations (55%) and partially by an increase in alkalinity (45%). pH has increased only slightly from 4.0 to 4.1. Organic acids have become increasingly important for the pH of runoff. Runoff from the shallow organic soils contains 10 to 20 mg C $ L^{-1} $ total organic carbon (TOC). The concentration of organic anions (estimated from the ionic balance) has increased from about 22 ueq $ L^{-1} $ in 1984 to 49 ueq $ L^{-1} $ in 1987. This increase is due to increased dissociation of organic acids and not to change in TOC concentrations. The organic C in these acid samples apparently has a maximum charge density of about 4.5 ueq mg $ C^{-1} $ and pK of about 4. Organic Acid Total Organic Carbon Alkalinity Organic Anion Base Cation Enthalten in Water, air & soil pollution Kluwer Academic Publishers, 1971 46(1989), 1-4 vom: März, Seite 251-259 (DE-627)12929134X (DE-600)120499-3 (DE-576)014472643 0049-6979 nnns volume:46 year:1989 number:1-4 month:03 pages:251-259 https://doi.org/10.1007/BF00192861 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-FOR SSG-OLC-IBL SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_40 GBV_ILN_47 GBV_ILN_70 GBV_ILN_601 GBV_ILN_2006 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4309 GBV_ILN_4311 GBV_ILN_4313 GBV_ILN_4314 GBV_ILN_4315 GBV_ILN_4325 ZC 7520 ZC 7520 AR 46 1989 1-4 03 251-259 |
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10.1007/BF00192861 doi (DE-627)OLC2084444748 (DE-He213)BF00192861-p DE-627 ger DE-627 rakwb eng 570 333.7 VZ 12 13 ssgn BIODIV DE-30 fid ZC 7520 VZ rvk ZC 7520 VZ rvk Wright, Richard F. verfasserin aut RAIN project: Role of organic acids in moderating ph change following reduction in acid deposition 1989 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 1989 Abstract The RAIN project (Reversing Acidification In Norway) entails catchment-scale experimental manipulations to investigate the effect on water and soil chemistry of drastic changes in precipitation chemistry. At Risdalsheia in southernmost Norway wet deposition of acid is excluded from a 860-$ m^{2} $ headwater catchment by means of a roof and “clean” precipitation is added beneath. Four years of acid exclusion (through June 1988) have resulted in lower concentrations of the strong acid anions $ NO_{3} $ (from 35 to 7 ueq $ L^{-1} $) and $ SO_{4} $ (from 110 to 53 ueq $ L^{-1} $) in runoff. The decline in strong acid anion concentrations has been compensated partially by a decrease in concentrations of base cations (55%) and partially by an increase in alkalinity (45%). pH has increased only slightly from 4.0 to 4.1. Organic acids have become increasingly important for the pH of runoff. Runoff from the shallow organic soils contains 10 to 20 mg C $ L^{-1} $ total organic carbon (TOC). The concentration of organic anions (estimated from the ionic balance) has increased from about 22 ueq $ L^{-1} $ in 1984 to 49 ueq $ L^{-1} $ in 1987. This increase is due to increased dissociation of organic acids and not to change in TOC concentrations. The organic C in these acid samples apparently has a maximum charge density of about 4.5 ueq mg $ C^{-1} $ and pK of about 4. Organic Acid Total Organic Carbon Alkalinity Organic Anion Base Cation Enthalten in Water, air & soil pollution Kluwer Academic Publishers, 1971 46(1989), 1-4 vom: März, Seite 251-259 (DE-627)12929134X (DE-600)120499-3 (DE-576)014472643 0049-6979 nnns volume:46 year:1989 number:1-4 month:03 pages:251-259 https://doi.org/10.1007/BF00192861 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-FOR SSG-OLC-IBL SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_40 GBV_ILN_47 GBV_ILN_70 GBV_ILN_601 GBV_ILN_2006 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4309 GBV_ILN_4311 GBV_ILN_4313 GBV_ILN_4314 GBV_ILN_4315 GBV_ILN_4325 ZC 7520 ZC 7520 AR 46 1989 1-4 03 251-259 |
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10.1007/BF00192861 doi (DE-627)OLC2084444748 (DE-He213)BF00192861-p DE-627 ger DE-627 rakwb eng 570 333.7 VZ 12 13 ssgn BIODIV DE-30 fid ZC 7520 VZ rvk ZC 7520 VZ rvk Wright, Richard F. verfasserin aut RAIN project: Role of organic acids in moderating ph change following reduction in acid deposition 1989 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 1989 Abstract The RAIN project (Reversing Acidification In Norway) entails catchment-scale experimental manipulations to investigate the effect on water and soil chemistry of drastic changes in precipitation chemistry. At Risdalsheia in southernmost Norway wet deposition of acid is excluded from a 860-$ m^{2} $ headwater catchment by means of a roof and “clean” precipitation is added beneath. Four years of acid exclusion (through June 1988) have resulted in lower concentrations of the strong acid anions $ NO_{3} $ (from 35 to 7 ueq $ L^{-1} $) and $ SO_{4} $ (from 110 to 53 ueq $ L^{-1} $) in runoff. The decline in strong acid anion concentrations has been compensated partially by a decrease in concentrations of base cations (55%) and partially by an increase in alkalinity (45%). pH has increased only slightly from 4.0 to 4.1. Organic acids have become increasingly important for the pH of runoff. Runoff from the shallow organic soils contains 10 to 20 mg C $ L^{-1} $ total organic carbon (TOC). The concentration of organic anions (estimated from the ionic balance) has increased from about 22 ueq $ L^{-1} $ in 1984 to 49 ueq $ L^{-1} $ in 1987. This increase is due to increased dissociation of organic acids and not to change in TOC concentrations. The organic C in these acid samples apparently has a maximum charge density of about 4.5 ueq mg $ C^{-1} $ and pK of about 4. Organic Acid Total Organic Carbon Alkalinity Organic Anion Base Cation Enthalten in Water, air & soil pollution Kluwer Academic Publishers, 1971 46(1989), 1-4 vom: März, Seite 251-259 (DE-627)12929134X (DE-600)120499-3 (DE-576)014472643 0049-6979 nnns volume:46 year:1989 number:1-4 month:03 pages:251-259 https://doi.org/10.1007/BF00192861 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-FOR SSG-OLC-IBL SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_40 GBV_ILN_47 GBV_ILN_70 GBV_ILN_601 GBV_ILN_2006 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4309 GBV_ILN_4311 GBV_ILN_4313 GBV_ILN_4314 GBV_ILN_4315 GBV_ILN_4325 ZC 7520 ZC 7520 AR 46 1989 1-4 03 251-259 |
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10.1007/BF00192861 doi (DE-627)OLC2084444748 (DE-He213)BF00192861-p DE-627 ger DE-627 rakwb eng 570 333.7 VZ 12 13 ssgn BIODIV DE-30 fid ZC 7520 VZ rvk ZC 7520 VZ rvk Wright, Richard F. verfasserin aut RAIN project: Role of organic acids in moderating ph change following reduction in acid deposition 1989 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 1989 Abstract The RAIN project (Reversing Acidification In Norway) entails catchment-scale experimental manipulations to investigate the effect on water and soil chemistry of drastic changes in precipitation chemistry. At Risdalsheia in southernmost Norway wet deposition of acid is excluded from a 860-$ m^{2} $ headwater catchment by means of a roof and “clean” precipitation is added beneath. Four years of acid exclusion (through June 1988) have resulted in lower concentrations of the strong acid anions $ NO_{3} $ (from 35 to 7 ueq $ L^{-1} $) and $ SO_{4} $ (from 110 to 53 ueq $ L^{-1} $) in runoff. The decline in strong acid anion concentrations has been compensated partially by a decrease in concentrations of base cations (55%) and partially by an increase in alkalinity (45%). pH has increased only slightly from 4.0 to 4.1. Organic acids have become increasingly important for the pH of runoff. Runoff from the shallow organic soils contains 10 to 20 mg C $ L^{-1} $ total organic carbon (TOC). The concentration of organic anions (estimated from the ionic balance) has increased from about 22 ueq $ L^{-1} $ in 1984 to 49 ueq $ L^{-1} $ in 1987. This increase is due to increased dissociation of organic acids and not to change in TOC concentrations. The organic C in these acid samples apparently has a maximum charge density of about 4.5 ueq mg $ C^{-1} $ and pK of about 4. Organic Acid Total Organic Carbon Alkalinity Organic Anion Base Cation Enthalten in Water, air & soil pollution Kluwer Academic Publishers, 1971 46(1989), 1-4 vom: März, Seite 251-259 (DE-627)12929134X (DE-600)120499-3 (DE-576)014472643 0049-6979 nnns volume:46 year:1989 number:1-4 month:03 pages:251-259 https://doi.org/10.1007/BF00192861 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-FOR SSG-OLC-IBL SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_40 GBV_ILN_47 GBV_ILN_70 GBV_ILN_601 GBV_ILN_2006 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4309 GBV_ILN_4311 GBV_ILN_4313 GBV_ILN_4314 GBV_ILN_4315 GBV_ILN_4325 ZC 7520 ZC 7520 AR 46 1989 1-4 03 251-259 |
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At Risdalsheia in southernmost Norway wet deposition of acid is excluded from a 860-$ m^{2} $ headwater catchment by means of a roof and “clean” precipitation is added beneath. Four years of acid exclusion (through June 1988) have resulted in lower concentrations of the strong acid anions $ NO_{3} $ (from 35 to 7 ueq $ L^{-1} $) and $ SO_{4} $ (from 110 to 53 ueq $ L^{-1} $) in runoff. The decline in strong acid anion concentrations has been compensated partially by a decrease in concentrations of base cations (55%) and partially by an increase in alkalinity (45%). pH has increased only slightly from 4.0 to 4.1. Organic acids have become increasingly important for the pH of runoff. Runoff from the shallow organic soils contains 10 to 20 mg C $ L^{-1} $ total organic carbon (TOC). The concentration of organic anions (estimated from the ionic balance) has increased from about 22 ueq $ L^{-1} $ in 1984 to 49 ueq $ L^{-1} $ in 1987. 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rain project: role of organic acids in moderating ph change following reduction in acid deposition |
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RAIN project: Role of organic acids in moderating ph change following reduction in acid deposition |
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Abstract The RAIN project (Reversing Acidification In Norway) entails catchment-scale experimental manipulations to investigate the effect on water and soil chemistry of drastic changes in precipitation chemistry. At Risdalsheia in southernmost Norway wet deposition of acid is excluded from a 860-$ m^{2} $ headwater catchment by means of a roof and “clean” precipitation is added beneath. Four years of acid exclusion (through June 1988) have resulted in lower concentrations of the strong acid anions $ NO_{3} $ (from 35 to 7 ueq $ L^{-1} $) and $ SO_{4} $ (from 110 to 53 ueq $ L^{-1} $) in runoff. The decline in strong acid anion concentrations has been compensated partially by a decrease in concentrations of base cations (55%) and partially by an increase in alkalinity (45%). pH has increased only slightly from 4.0 to 4.1. Organic acids have become increasingly important for the pH of runoff. Runoff from the shallow organic soils contains 10 to 20 mg C $ L^{-1} $ total organic carbon (TOC). The concentration of organic anions (estimated from the ionic balance) has increased from about 22 ueq $ L^{-1} $ in 1984 to 49 ueq $ L^{-1} $ in 1987. This increase is due to increased dissociation of organic acids and not to change in TOC concentrations. The organic C in these acid samples apparently has a maximum charge density of about 4.5 ueq mg $ C^{-1} $ and pK of about 4. © Kluwer Academic Publishers 1989 |
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Abstract The RAIN project (Reversing Acidification In Norway) entails catchment-scale experimental manipulations to investigate the effect on water and soil chemistry of drastic changes in precipitation chemistry. At Risdalsheia in southernmost Norway wet deposition of acid is excluded from a 860-$ m^{2} $ headwater catchment by means of a roof and “clean” precipitation is added beneath. Four years of acid exclusion (through June 1988) have resulted in lower concentrations of the strong acid anions $ NO_{3} $ (from 35 to 7 ueq $ L^{-1} $) and $ SO_{4} $ (from 110 to 53 ueq $ L^{-1} $) in runoff. The decline in strong acid anion concentrations has been compensated partially by a decrease in concentrations of base cations (55%) and partially by an increase in alkalinity (45%). pH has increased only slightly from 4.0 to 4.1. Organic acids have become increasingly important for the pH of runoff. Runoff from the shallow organic soils contains 10 to 20 mg C $ L^{-1} $ total organic carbon (TOC). The concentration of organic anions (estimated from the ionic balance) has increased from about 22 ueq $ L^{-1} $ in 1984 to 49 ueq $ L^{-1} $ in 1987. This increase is due to increased dissociation of organic acids and not to change in TOC concentrations. The organic C in these acid samples apparently has a maximum charge density of about 4.5 ueq mg $ C^{-1} $ and pK of about 4. © Kluwer Academic Publishers 1989 |
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Abstract The RAIN project (Reversing Acidification In Norway) entails catchment-scale experimental manipulations to investigate the effect on water and soil chemistry of drastic changes in precipitation chemistry. At Risdalsheia in southernmost Norway wet deposition of acid is excluded from a 860-$ m^{2} $ headwater catchment by means of a roof and “clean” precipitation is added beneath. Four years of acid exclusion (through June 1988) have resulted in lower concentrations of the strong acid anions $ NO_{3} $ (from 35 to 7 ueq $ L^{-1} $) and $ SO_{4} $ (from 110 to 53 ueq $ L^{-1} $) in runoff. The decline in strong acid anion concentrations has been compensated partially by a decrease in concentrations of base cations (55%) and partially by an increase in alkalinity (45%). pH has increased only slightly from 4.0 to 4.1. Organic acids have become increasingly important for the pH of runoff. Runoff from the shallow organic soils contains 10 to 20 mg C $ L^{-1} $ total organic carbon (TOC). The concentration of organic anions (estimated from the ionic balance) has increased from about 22 ueq $ L^{-1} $ in 1984 to 49 ueq $ L^{-1} $ in 1987. This increase is due to increased dissociation of organic acids and not to change in TOC concentrations. The organic C in these acid samples apparently has a maximum charge density of about 4.5 ueq mg $ C^{-1} $ and pK of about 4. © Kluwer Academic Publishers 1989 |
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