Changes in productivity and distribution of nutrients in a chronosequence at Glacier Bay National Park, Alaska
The N-fixing shrub Alnus sinuata (Sitka alder) dominates recently deglaciated sites along Glacier Bay but is replaced by Picea sitchensis (Sitka spruce) after c80 yr. While Alnus dominated, soil organic matter and N increased very rapidly. Above-ground biomass was accompanied by a decline in soil N....
Published in: | The Journal of Ecology |
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Language: | English |
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Wiley-Blackwell Publishing Ltd.
1990
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Online Access: | https://doi.org/10.2307/2260884 |
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ftunivscoast:usc:14835 2023-05-15T16:20:37+02:00 Changes in productivity and distribution of nutrients in a chronosequence at Glacier Bay National Park, Alaska Bormann, B T Sidle, Roy C 1990 https://doi.org/10.2307/2260884 eng eng Wiley-Blackwell Publishing Ltd. usc:14835 URN:ISSN: 0022-0477 FoR 05 (Environmental Sciences) FoR 06 (Biological Sciences) FoR 07 (Agricultural and Veterinary Sciences) nitrogen-fixing shrub nutrient distribution Journal Article 1990 ftunivscoast https://doi.org/10.2307/2260884 2019-06-17T22:26:25Z The N-fixing shrub Alnus sinuata (Sitka alder) dominates recently deglaciated sites along Glacier Bay but is replaced by Picea sitchensis (Sitka spruce) after c80 yr. While Alnus dominated, soil organic matter and N increased very rapidly. Above-ground biomass was accompanied by a decline in soil N. In maturing Picea stands (100-160 yr old), N in above-ground biomass, especially current-year foliage, declined, perhaps because N began to accumulate in poorly decomposable organic (O) and podzolic (Bh) soil horizons. The O horizon of the Alnus site contained greater concentrations of most extractable macro- and micro-nutrients than that of Picea sites, suggesting rapid soil weathering, vegetative uptake, and cycling back to the O horizon. Soils under Picea experienced rapid podzolization. Associated with soil changes, above-ground net primary productivity of Picea decreased 50% over the 160-yr Picea-dominated portion of the chronosequence. Decreased net primary productivity could not be accounted for by increased respiratory cost of sapwood or foliage, suggesting a nutrient limitation to growth. Increase or decrease in productivity of these ecosystems appeared related to the effects of individual species on soil characteristics. -from Authors Article in Journal/Newspaper glacier Alaska University of the Sunshine Coast, Queensland, Australia: COAST Research Database Glacier Bay The Journal of Ecology 78 3 561 |
institution |
Open Polar |
collection |
University of the Sunshine Coast, Queensland, Australia: COAST Research Database |
op_collection_id |
ftunivscoast |
language |
English |
topic |
FoR 05 (Environmental Sciences) FoR 06 (Biological Sciences) FoR 07 (Agricultural and Veterinary Sciences) nitrogen-fixing shrub nutrient distribution |
spellingShingle |
FoR 05 (Environmental Sciences) FoR 06 (Biological Sciences) FoR 07 (Agricultural and Veterinary Sciences) nitrogen-fixing shrub nutrient distribution Bormann, B T Sidle, Roy C Changes in productivity and distribution of nutrients in a chronosequence at Glacier Bay National Park, Alaska |
topic_facet |
FoR 05 (Environmental Sciences) FoR 06 (Biological Sciences) FoR 07 (Agricultural and Veterinary Sciences) nitrogen-fixing shrub nutrient distribution |
description |
The N-fixing shrub Alnus sinuata (Sitka alder) dominates recently deglaciated sites along Glacier Bay but is replaced by Picea sitchensis (Sitka spruce) after c80 yr. While Alnus dominated, soil organic matter and N increased very rapidly. Above-ground biomass was accompanied by a decline in soil N. In maturing Picea stands (100-160 yr old), N in above-ground biomass, especially current-year foliage, declined, perhaps because N began to accumulate in poorly decomposable organic (O) and podzolic (Bh) soil horizons. The O horizon of the Alnus site contained greater concentrations of most extractable macro- and micro-nutrients than that of Picea sites, suggesting rapid soil weathering, vegetative uptake, and cycling back to the O horizon. Soils under Picea experienced rapid podzolization. Associated with soil changes, above-ground net primary productivity of Picea decreased 50% over the 160-yr Picea-dominated portion of the chronosequence. Decreased net primary productivity could not be accounted for by increased respiratory cost of sapwood or foliage, suggesting a nutrient limitation to growth. Increase or decrease in productivity of these ecosystems appeared related to the effects of individual species on soil characteristics. -from Authors |
format |
Article in Journal/Newspaper |
author |
Bormann, B T Sidle, Roy C |
author_facet |
Bormann, B T Sidle, Roy C |
author_sort |
Bormann, B T |
title |
Changes in productivity and distribution of nutrients in a chronosequence at Glacier Bay National Park, Alaska |
title_short |
Changes in productivity and distribution of nutrients in a chronosequence at Glacier Bay National Park, Alaska |
title_full |
Changes in productivity and distribution of nutrients in a chronosequence at Glacier Bay National Park, Alaska |
title_fullStr |
Changes in productivity and distribution of nutrients in a chronosequence at Glacier Bay National Park, Alaska |
title_full_unstemmed |
Changes in productivity and distribution of nutrients in a chronosequence at Glacier Bay National Park, Alaska |
title_sort |
changes in productivity and distribution of nutrients in a chronosequence at glacier bay national park, alaska |
publisher |
Wiley-Blackwell Publishing Ltd. |
publishDate |
1990 |
url |
https://doi.org/10.2307/2260884 |
geographic |
Glacier Bay |
geographic_facet |
Glacier Bay |
genre |
glacier Alaska |
genre_facet |
glacier Alaska |
op_relation |
usc:14835 URN:ISSN: 0022-0477 |
op_doi |
https://doi.org/10.2307/2260884 |
container_title |
The Journal of Ecology |
container_volume |
78 |
container_issue |
3 |
container_start_page |
561 |
_version_ |
1766008558909915136 |