Carbon flow in an upland grassland

effect of liming on the flux of recently photosynthesised carbon to rhizosphere soil

Juan Ignacio Rangel-Castro, James Ivor Prosser, C M Scrimgeour, Pete Smith, N Ostle, P Ineson, Andrew Alexander Meharg, Kenneth Stuart Killham

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

The effect of liming on the flow of recently photosynthesized carbon to rhizosphere soil was studied using 13CO2 pulse labelling, in an upland grassland ecosystem in Scotland. The use of 13C enabled detection, in the field, of the effect of a 4-year liming period of selected soil plots on C allocation from plant biomass to soil, in comparison with unlimed plots. Photosynthetic rates and carbon turnover were higher in plants grown in limed soils than in those from unlimed plots. Higher d13C‰ values were detected in shoots from limed plants than in those from unlimed plants in samples clipped within 15 days of the end of pulse labelling. Analysis of the aboveground plant production corresponding to the 4-year period of liming indicated that the standing biomass was higher in plots that received lime. Lower d13C‰ values in limed roots compared with unlimed roots were found, whereas no significant difference was detected between soil samples. Extrapolation of our results indicated that more C has been lost through the soil than has been gained via photosynthetic assimilation because of pasture liming in Scotland during the period 1990–1998. However, the uncertainty associated with such extrapolation based on this single study is high and these estimates are provided only to set our findings in the broader context of national soil carbon emissions.
Original languageEnglish
Pages (from-to)2100-2108
Number of pages8
JournalGlobal Change Biology
Volume10
Issue number12
DOIs
Publication statusPublished - Dec 2004

Keywords

  • 13C
  • carbon pools
  • carbon turnover
  • liming
  • rhizosphere soil
  • upland grassland
  • festuca pratensis l
  • pastoral agriculture
  • dioxide enrichment
  • organic matter
  • lolium perenne
  • Mid Wales
  • pasture

Cite this

Carbon flow in an upland grassland : effect of liming on the flux of recently photosynthesised carbon to rhizosphere soil. / Rangel-Castro, Juan Ignacio; Prosser, James Ivor; Scrimgeour, C M; Smith, Pete; Ostle, N; Ineson, P; Meharg, Andrew Alexander; Killham, Kenneth Stuart.

In: Global Change Biology, Vol. 10, No. 12, 12.2004, p. 2100-2108.

Research output: Contribution to journalArticle

Rangel-Castro, Juan Ignacio ; Prosser, James Ivor ; Scrimgeour, C M ; Smith, Pete ; Ostle, N ; Ineson, P ; Meharg, Andrew Alexander ; Killham, Kenneth Stuart. / Carbon flow in an upland grassland : effect of liming on the flux of recently photosynthesised carbon to rhizosphere soil. In: Global Change Biology. 2004 ; Vol. 10, No. 12. pp. 2100-2108.
@article{a852c3dbcba5454d8539f50dda90db03,
title = "Carbon flow in an upland grassland: effect of liming on the flux of recently photosynthesised carbon to rhizosphere soil",
abstract = "The effect of liming on the flow of recently photosynthesized carbon to rhizosphere soil was studied using 13CO2 pulse labelling, in an upland grassland ecosystem in Scotland. The use of 13C enabled detection, in the field, of the effect of a 4-year liming period of selected soil plots on C allocation from plant biomass to soil, in comparison with unlimed plots. Photosynthetic rates and carbon turnover were higher in plants grown in limed soils than in those from unlimed plots. Higher d13C‰ values were detected in shoots from limed plants than in those from unlimed plants in samples clipped within 15 days of the end of pulse labelling. Analysis of the aboveground plant production corresponding to the 4-year period of liming indicated that the standing biomass was higher in plots that received lime. Lower d13C‰ values in limed roots compared with unlimed roots were found, whereas no significant difference was detected between soil samples. Extrapolation of our results indicated that more C has been lost through the soil than has been gained via photosynthetic assimilation because of pasture liming in Scotland during the period 1990–1998. However, the uncertainty associated with such extrapolation based on this single study is high and these estimates are provided only to set our findings in the broader context of national soil carbon emissions.",
keywords = "13C, carbon pools, carbon turnover, liming, rhizosphere soil, upland grassland, festuca pratensis l, pastoral agriculture, dioxide enrichment, organic matter, lolium perenne, Mid Wales, pasture",
author = "Rangel-Castro, {Juan Ignacio} and Prosser, {James Ivor} and Scrimgeour, {C M} and Pete Smith and N Ostle and P Ineson and Meharg, {Andrew Alexander} and Killham, {Kenneth Stuart}",
year = "2004",
month = "12",
doi = "10.1111/j.1365-2486.2004.00883.x",
language = "English",
volume = "10",
pages = "2100--2108",
journal = "Global Change Biology",
issn = "1354-1013",
publisher = "John Wiley & Sons, Ltd (10.1111)",
number = "12",

}

TY - JOUR

T1 - Carbon flow in an upland grassland

T2 - effect of liming on the flux of recently photosynthesised carbon to rhizosphere soil

AU - Rangel-Castro, Juan Ignacio

AU - Prosser, James Ivor

AU - Scrimgeour, C M

AU - Smith, Pete

AU - Ostle, N

AU - Ineson, P

AU - Meharg, Andrew Alexander

AU - Killham, Kenneth Stuart

PY - 2004/12

Y1 - 2004/12

N2 - The effect of liming on the flow of recently photosynthesized carbon to rhizosphere soil was studied using 13CO2 pulse labelling, in an upland grassland ecosystem in Scotland. The use of 13C enabled detection, in the field, of the effect of a 4-year liming period of selected soil plots on C allocation from plant biomass to soil, in comparison with unlimed plots. Photosynthetic rates and carbon turnover were higher in plants grown in limed soils than in those from unlimed plots. Higher d13C‰ values were detected in shoots from limed plants than in those from unlimed plants in samples clipped within 15 days of the end of pulse labelling. Analysis of the aboveground plant production corresponding to the 4-year period of liming indicated that the standing biomass was higher in plots that received lime. Lower d13C‰ values in limed roots compared with unlimed roots were found, whereas no significant difference was detected between soil samples. Extrapolation of our results indicated that more C has been lost through the soil than has been gained via photosynthetic assimilation because of pasture liming in Scotland during the period 1990–1998. However, the uncertainty associated with such extrapolation based on this single study is high and these estimates are provided only to set our findings in the broader context of national soil carbon emissions.

AB - The effect of liming on the flow of recently photosynthesized carbon to rhizosphere soil was studied using 13CO2 pulse labelling, in an upland grassland ecosystem in Scotland. The use of 13C enabled detection, in the field, of the effect of a 4-year liming period of selected soil plots on C allocation from plant biomass to soil, in comparison with unlimed plots. Photosynthetic rates and carbon turnover were higher in plants grown in limed soils than in those from unlimed plots. Higher d13C‰ values were detected in shoots from limed plants than in those from unlimed plants in samples clipped within 15 days of the end of pulse labelling. Analysis of the aboveground plant production corresponding to the 4-year period of liming indicated that the standing biomass was higher in plots that received lime. Lower d13C‰ values in limed roots compared with unlimed roots were found, whereas no significant difference was detected between soil samples. Extrapolation of our results indicated that more C has been lost through the soil than has been gained via photosynthetic assimilation because of pasture liming in Scotland during the period 1990–1998. However, the uncertainty associated with such extrapolation based on this single study is high and these estimates are provided only to set our findings in the broader context of national soil carbon emissions.

KW - 13C

KW - carbon pools

KW - carbon turnover

KW - liming

KW - rhizosphere soil

KW - upland grassland

KW - festuca pratensis l

KW - pastoral agriculture

KW - dioxide enrichment

KW - organic matter

KW - lolium perenne

KW - Mid Wales

KW - pasture

U2 - 10.1111/j.1365-2486.2004.00883.x

DO - 10.1111/j.1365-2486.2004.00883.x

M3 - Article

VL - 10

SP - 2100

EP - 2108

JO - Global Change Biology

JF - Global Change Biology

SN - 1354-1013

IS - 12

ER -