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Differential responses of UK upland plants to nitrogen deposition

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Differential responses of UK upland plants to nitrogen deposition. / Leith, I.D.; Fowler, D.; Hicks, W.K.; Woodin, S.J.

In: New Phytologist, Vol. 141, No. 2, 01.02.1999, p. 277-289.

Research output: Contribution to journalArticle

Harvard

Leith, ID, Fowler, D, Hicks, WK & Woodin, SJ 1999, 'Differential responses of UK upland plants to nitrogen deposition', New Phytologist, vol. 141, no. 2, pp. 277-289. https://doi.org/10.1046/j.1469-8137.1999.00333.x

APA

Leith, I. D., Fowler, D., Hicks, W. K., & Woodin, S. J. (1999). Differential responses of UK upland plants to nitrogen deposition. New Phytologist, 141(2), 277-289. https://doi.org/10.1046/j.1469-8137.1999.00333.x

Vancouver

Leith ID, Fowler D, Hicks WK, Woodin SJ. Differential responses of UK upland plants to nitrogen deposition. New Phytologist. 1999 Feb 1;141(2):277-289. https://doi.org/10.1046/j.1469-8137.1999.00333.x

Author

Leith, I.D. ; Fowler, D. ; Hicks, W.K. ; Woodin, S.J. / Differential responses of UK upland plants to nitrogen deposition. In: New Phytologist. 1999 ; Vol. 141, No. 2. pp. 277-289.

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@article{2449dc301a134ffcba72e00ebf477f20,
title = "Differential responses of UK upland plants to nitrogen deposition",
abstract = "Native upland species, Nardus stricta, Eriophorum vaginatum, Erica cinerea and Vaccinium vitis-idaea were given 3 or 60 kg N ha yr, over 2 yr, applied as a mist (NHNO). The high N treatment increased above-ground biomass in all four species, but only significantly in E. cinerea, E. vaginatum and N. stricta. Biomass increases in E. vaginatum and N. stricta resulted from enhanced tiller production rather than shoot elongation. Root growth increased in N. stricta, so that root:shoot ratio in this species was unchanged by N. Root growth in E. vaginatum, E. cinerea and V. vitis-idaea did not respond to N and their root:shoot ratios decreased. Tissue N concentrations increased in both shoots and roots of all species in response to N. The accumulated foliar N did not increase the proportion of N allocated to Rubisco and the photosynthetic capacities of N. stricta, E. vaginatum and V. vitis-idaea were unchanged. Thus growth responses to N were due to altered allocation rather than increased rate of photosynthesis per unit leaf area. The high N treatment increased flower production significantly in E. cinerea but not in the other species. Although in this experiment dwarf shrubs were more responsive than graminoids to N, in the field at current N inputs the enhanced tillering of the graminoids may be more competitively advantageous, especially where gaps develop in the canopy. Thus increasing N deposition may lead to increased grassiness of upland heath, and in particular, a spread of N. stricta.",
author = "I.D. Leith and D. Fowler and W.K. Hicks and S.J. Woodin",
year = "1999",
month = "2",
day = "1",
doi = "10.1046/j.1469-8137.1999.00333.x",
language = "English",
volume = "141",
pages = "277--289",
journal = "New Phytologist",
issn = "0028-646X",
publisher = "Wiley-Blackwell",
number = "2",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Differential responses of UK upland plants to nitrogen deposition

AU - Leith, I.D.

AU - Fowler, D.

AU - Hicks, W.K.

AU - Woodin, S.J.

PY - 1999/2/1

Y1 - 1999/2/1

N2 - Native upland species, Nardus stricta, Eriophorum vaginatum, Erica cinerea and Vaccinium vitis-idaea were given 3 or 60 kg N ha yr, over 2 yr, applied as a mist (NHNO). The high N treatment increased above-ground biomass in all four species, but only significantly in E. cinerea, E. vaginatum and N. stricta. Biomass increases in E. vaginatum and N. stricta resulted from enhanced tiller production rather than shoot elongation. Root growth increased in N. stricta, so that root:shoot ratio in this species was unchanged by N. Root growth in E. vaginatum, E. cinerea and V. vitis-idaea did not respond to N and their root:shoot ratios decreased. Tissue N concentrations increased in both shoots and roots of all species in response to N. The accumulated foliar N did not increase the proportion of N allocated to Rubisco and the photosynthetic capacities of N. stricta, E. vaginatum and V. vitis-idaea were unchanged. Thus growth responses to N were due to altered allocation rather than increased rate of photosynthesis per unit leaf area. The high N treatment increased flower production significantly in E. cinerea but not in the other species. Although in this experiment dwarf shrubs were more responsive than graminoids to N, in the field at current N inputs the enhanced tillering of the graminoids may be more competitively advantageous, especially where gaps develop in the canopy. Thus increasing N deposition may lead to increased grassiness of upland heath, and in particular, a spread of N. stricta.

AB - Native upland species, Nardus stricta, Eriophorum vaginatum, Erica cinerea and Vaccinium vitis-idaea were given 3 or 60 kg N ha yr, over 2 yr, applied as a mist (NHNO). The high N treatment increased above-ground biomass in all four species, but only significantly in E. cinerea, E. vaginatum and N. stricta. Biomass increases in E. vaginatum and N. stricta resulted from enhanced tiller production rather than shoot elongation. Root growth increased in N. stricta, so that root:shoot ratio in this species was unchanged by N. Root growth in E. vaginatum, E. cinerea and V. vitis-idaea did not respond to N and their root:shoot ratios decreased. Tissue N concentrations increased in both shoots and roots of all species in response to N. The accumulated foliar N did not increase the proportion of N allocated to Rubisco and the photosynthetic capacities of N. stricta, E. vaginatum and V. vitis-idaea were unchanged. Thus growth responses to N were due to altered allocation rather than increased rate of photosynthesis per unit leaf area. The high N treatment increased flower production significantly in E. cinerea but not in the other species. Although in this experiment dwarf shrubs were more responsive than graminoids to N, in the field at current N inputs the enhanced tillering of the graminoids may be more competitively advantageous, especially where gaps develop in the canopy. Thus increasing N deposition may lead to increased grassiness of upland heath, and in particular, a spread of N. stricta.

UR - http://www.scopus.com/inward/record.url?scp=0032955229&partnerID=8YFLogxK

U2 - 10.1046/j.1469-8137.1999.00333.x

DO - 10.1046/j.1469-8137.1999.00333.x

M3 - Article

VL - 141

SP - 277

EP - 289

JO - New Phytologist

JF - New Phytologist

SN - 0028-646X

IS - 2

ER -