Standing biomass and production in water drainages of the foothills of the Philip Smith Mountains, Alaska
In the foothills of the Philip Smith Mountains, Brooks Range, Alaska, tussock tundra is the most widely distributed vegetation, and it occurs on rolling hills and in valleys that were shaped by a sequence of Pleistocene glaciations. In this study, aboveground standing biomass and production were com...
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crwiley:10.1111/j.1600-0587.1989.tb00850.x 2024-04-28T08:14:58+00:00 Standing biomass and production in water drainages of the foothills of the Philip Smith Mountains, Alaska Hastings, Steven J. Luchessa, Scott A. Oechel, Walter C. Tenhunen, John D. 1989 http://dx.doi.org/10.1111/j.1600-0587.1989.tb00850.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0587.1989.tb00850.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0587.1989.tb00850.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecography volume 12, issue 3, page 304-311 ISSN 0906-7590 1600-0587 Ecology, Evolution, Behavior and Systematics journal-article 1989 crwiley https://doi.org/10.1111/j.1600-0587.1989.tb00850.x 2024-04-05T07:39:54Z In the foothills of the Philip Smith Mountains, Brooks Range, Alaska, tussock tundra is the most widely distributed vegetation, and it occurs on rolling hills and in valleys that were shaped by a sequence of Pleistocene glaciations. In this study, aboveground standing biomass and production were compared in “intertrack tundra” areas that were relatively homogenous with respect to downslope drainage and adjacent “water tracks” that acted to channel water flow to the valley bottom stream. Comparisons of biomass, leaf area index, and specific leaf weight were also made between upper and lower slope positions. Similarities and differences of vegetation structure are examined with respect to graminoid, deciduous shrub, evergreen shrub, herbaceous, and bryophyte components. Water tracks were found to have 1.5–1.7 times the biomass of intertrack tundra, and production (excluding secondary growth) in water tracks was 40% greater than in intertrack tundra. The aboveground biomass for all areas studied and the annual production values were similar to those found in other studies of tussock tundra. While only slight differences in depth of thaw occurred in water tracks and intertrack tundra during June and early July, water tracks thawed more deeply with the onset of summer rains. Warmer temperatures at 40 cm depth in July and August may have increased nutrient availability, whereas greater rooting depth and movement of water may have increased nutrient capture in water tracks as compared with the intertrack areas. Greater biomass and a deeper thaw depth occurred at upper slope locations. Article in Journal/Newspaper Brooks Range Tundra Alaska Wiley Online Library Ecography 12 3 304 311 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
topic |
Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology, Evolution, Behavior and Systematics Hastings, Steven J. Luchessa, Scott A. Oechel, Walter C. Tenhunen, John D. Standing biomass and production in water drainages of the foothills of the Philip Smith Mountains, Alaska |
topic_facet |
Ecology, Evolution, Behavior and Systematics |
description |
In the foothills of the Philip Smith Mountains, Brooks Range, Alaska, tussock tundra is the most widely distributed vegetation, and it occurs on rolling hills and in valleys that were shaped by a sequence of Pleistocene glaciations. In this study, aboveground standing biomass and production were compared in “intertrack tundra” areas that were relatively homogenous with respect to downslope drainage and adjacent “water tracks” that acted to channel water flow to the valley bottom stream. Comparisons of biomass, leaf area index, and specific leaf weight were also made between upper and lower slope positions. Similarities and differences of vegetation structure are examined with respect to graminoid, deciduous shrub, evergreen shrub, herbaceous, and bryophyte components. Water tracks were found to have 1.5–1.7 times the biomass of intertrack tundra, and production (excluding secondary growth) in water tracks was 40% greater than in intertrack tundra. The aboveground biomass for all areas studied and the annual production values were similar to those found in other studies of tussock tundra. While only slight differences in depth of thaw occurred in water tracks and intertrack tundra during June and early July, water tracks thawed more deeply with the onset of summer rains. Warmer temperatures at 40 cm depth in July and August may have increased nutrient availability, whereas greater rooting depth and movement of water may have increased nutrient capture in water tracks as compared with the intertrack areas. Greater biomass and a deeper thaw depth occurred at upper slope locations. |
format |
Article in Journal/Newspaper |
author |
Hastings, Steven J. Luchessa, Scott A. Oechel, Walter C. Tenhunen, John D. |
author_facet |
Hastings, Steven J. Luchessa, Scott A. Oechel, Walter C. Tenhunen, John D. |
author_sort |
Hastings, Steven J. |
title |
Standing biomass and production in water drainages of the foothills of the Philip Smith Mountains, Alaska |
title_short |
Standing biomass and production in water drainages of the foothills of the Philip Smith Mountains, Alaska |
title_full |
Standing biomass and production in water drainages of the foothills of the Philip Smith Mountains, Alaska |
title_fullStr |
Standing biomass and production in water drainages of the foothills of the Philip Smith Mountains, Alaska |
title_full_unstemmed |
Standing biomass and production in water drainages of the foothills of the Philip Smith Mountains, Alaska |
title_sort |
standing biomass and production in water drainages of the foothills of the philip smith mountains, alaska |
publisher |
Wiley |
publishDate |
1989 |
url |
http://dx.doi.org/10.1111/j.1600-0587.1989.tb00850.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0587.1989.tb00850.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0587.1989.tb00850.x |
genre |
Brooks Range Tundra Alaska |
genre_facet |
Brooks Range Tundra Alaska |
op_source |
Ecography volume 12, issue 3, page 304-311 ISSN 0906-7590 1600-0587 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1600-0587.1989.tb00850.x |
container_title |
Ecography |
container_volume |
12 |
container_issue |
3 |
container_start_page |
304 |
op_container_end_page |
311 |
_version_ |
1797580803880779776 |