Influence of Vegetation and Hydrology on the Humus Budgets of Labrador Lakes
A mass-balance approach is used to explore the effect of several hydrologic and geographic variables on humic matter concentrations in surface waters of Labrador–Ungava. Water-color measurements from 67 dilute oligotrophic lakes are used to evaluate model predictions of aquatic humus concentration f...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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Canadian Science Publishing
1987
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Online Access: | http://dx.doi.org/10.1139/f87-154 http://www.nrcresearchpress.com/doi/pdf/10.1139/f87-154 |
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crcansciencepubl:10.1139/f87-154 2024-09-15T18:17:11+00:00 Influence of Vegetation and Hydrology on the Humus Budgets of Labrador Lakes Engstrom, Daniel R. 1987 http://dx.doi.org/10.1139/f87-154 http://www.nrcresearchpress.com/doi/pdf/10.1139/f87-154 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 44, issue 7, page 1306-1314 ISSN 0706-652X 1205-7533 journal-article 1987 crcansciencepubl https://doi.org/10.1139/f87-154 2024-06-27T04:11:00Z A mass-balance approach is used to explore the effect of several hydrologic and geographic variables on humic matter concentrations in surface waters of Labrador–Ungava. Water-color measurements from 67 dilute oligotrophic lakes are used to evaluate model predictions of aquatic humus concentration from basin hydrology, catchment vegetation, and internal loss rates. The major trend in water color in the Labrador region — increasing north to south — results from differences in external humus loading from catchment vegetation and soils. Hydrologic influences on aquatic humus concentrations reside in the dilution of catchment drainage by direct precipitation to the lake — effective only when catchments are small — and in water residence time which controls losses due to mineralization and sedimentation. Article in Journal/Newspaper Labrador region Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 44 7 1306 1314 |
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Open Polar |
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Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
A mass-balance approach is used to explore the effect of several hydrologic and geographic variables on humic matter concentrations in surface waters of Labrador–Ungava. Water-color measurements from 67 dilute oligotrophic lakes are used to evaluate model predictions of aquatic humus concentration from basin hydrology, catchment vegetation, and internal loss rates. The major trend in water color in the Labrador region — increasing north to south — results from differences in external humus loading from catchment vegetation and soils. Hydrologic influences on aquatic humus concentrations reside in the dilution of catchment drainage by direct precipitation to the lake — effective only when catchments are small — and in water residence time which controls losses due to mineralization and sedimentation. |
format |
Article in Journal/Newspaper |
author |
Engstrom, Daniel R. |
spellingShingle |
Engstrom, Daniel R. Influence of Vegetation and Hydrology on the Humus Budgets of Labrador Lakes |
author_facet |
Engstrom, Daniel R. |
author_sort |
Engstrom, Daniel R. |
title |
Influence of Vegetation and Hydrology on the Humus Budgets of Labrador Lakes |
title_short |
Influence of Vegetation and Hydrology on the Humus Budgets of Labrador Lakes |
title_full |
Influence of Vegetation and Hydrology on the Humus Budgets of Labrador Lakes |
title_fullStr |
Influence of Vegetation and Hydrology on the Humus Budgets of Labrador Lakes |
title_full_unstemmed |
Influence of Vegetation and Hydrology on the Humus Budgets of Labrador Lakes |
title_sort |
influence of vegetation and hydrology on the humus budgets of labrador lakes |
publisher |
Canadian Science Publishing |
publishDate |
1987 |
url |
http://dx.doi.org/10.1139/f87-154 http://www.nrcresearchpress.com/doi/pdf/10.1139/f87-154 |
genre |
Labrador region |
genre_facet |
Labrador region |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 44, issue 7, page 1306-1314 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f87-154 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
44 |
container_issue |
7 |
container_start_page |
1306 |
op_container_end_page |
1314 |
_version_ |
1810455173325127680 |