Vegetation Trends in Whitehorse Yukon, 1984 to 2009
To assess temporal greenness trends at the landscape scale for Whitehorse, Yukon (417 km2), this study derived a Landsat normalized difference vegetation index (NDVI) time-series from 1984 to 2009. Using a greenest annual pixel approach, NDVI trend analysis revealed that 37% of studied area had sign...
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fttorometrofigs:oai:figshare.com:article/14665377 2023-11-12T04:27:56+01:00 Vegetation Trends in Whitehorse Yukon, 1984 to 2009 Dexter J. Kotylak 2018-01-01T00:00:00Z https://doi.org/10.32920/ryerson.14665377.v1 https://figshare.com/articles/thesis/Vegetation_Trends_in_Whitehorse_Yukon_1984_to_2009/14665377 unknown doi:10.32920/ryerson.14665377.v1 https://figshare.com/articles/thesis/Vegetation_Trends_in_Whitehorse_Yukon_1984_to_2009/14665377 In Copyright Environmental impacts Environmental engineering n.e.c Environmental impact assessment Environmental impact analysis -- Yukon Whitehorse (Yukon) -- Environmental aspects Plant ecology -- Yukon Forest mapping -- Yukon -- Whitehorse -- Remote sensing Vegetation monitoring -- Yukon -- Whitehorse -- Remote sensing Climatic changes -- Yukon -- Whitehorse -- Forecasting Text Thesis 2018 fttorometrofigs https://doi.org/10.32920/ryerson.14665377.v1 2023-10-15T05:41:19Z To assess temporal greenness trends at the landscape scale for Whitehorse, Yukon (417 km2), this study derived a Landsat normalized difference vegetation index (NDVI) time-series from 1984 to 2009. Using a greenest annual pixel approach, NDVI trend analysis revealed that 37% of studied area had significant greening (p<0.05) and that only 1% of the studied land area had significant browning. Yearly mean NDVI values declined in drought years and increased in years with greater precipitation. Greening pixels were most prevalent in white spruce (Picea glauca) and subalpine fir (Abies lasiocarpa) dominant forests, suggesting that increased amounts of precipitation and rising temperatures have benefited both species and associated shrub communities. Forests where trembling aspen (Populas tremuloides) are dominant displayed the least greening, which may be explained by the proliferation of aspen serpentine leaf miner (Phyllocnistis populiella), and drought related die-back on south-facing slopes that have become warmer across the study period. Thesis Whitehorse Yukon Research from Toronto Metropolitan University Browning ENVELOPE(164.050,164.050,-74.617,-74.617) Yukon |
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Research from Toronto Metropolitan University |
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topic |
Environmental impacts Environmental engineering n.e.c Environmental impact assessment Environmental impact analysis -- Yukon Whitehorse (Yukon) -- Environmental aspects Plant ecology -- Yukon Forest mapping -- Yukon -- Whitehorse -- Remote sensing Vegetation monitoring -- Yukon -- Whitehorse -- Remote sensing Climatic changes -- Yukon -- Whitehorse -- Forecasting |
spellingShingle |
Environmental impacts Environmental engineering n.e.c Environmental impact assessment Environmental impact analysis -- Yukon Whitehorse (Yukon) -- Environmental aspects Plant ecology -- Yukon Forest mapping -- Yukon -- Whitehorse -- Remote sensing Vegetation monitoring -- Yukon -- Whitehorse -- Remote sensing Climatic changes -- Yukon -- Whitehorse -- Forecasting Dexter J. Kotylak Vegetation Trends in Whitehorse Yukon, 1984 to 2009 |
topic_facet |
Environmental impacts Environmental engineering n.e.c Environmental impact assessment Environmental impact analysis -- Yukon Whitehorse (Yukon) -- Environmental aspects Plant ecology -- Yukon Forest mapping -- Yukon -- Whitehorse -- Remote sensing Vegetation monitoring -- Yukon -- Whitehorse -- Remote sensing Climatic changes -- Yukon -- Whitehorse -- Forecasting |
description |
To assess temporal greenness trends at the landscape scale for Whitehorse, Yukon (417 km2), this study derived a Landsat normalized difference vegetation index (NDVI) time-series from 1984 to 2009. Using a greenest annual pixel approach, NDVI trend analysis revealed that 37% of studied area had significant greening (p<0.05) and that only 1% of the studied land area had significant browning. Yearly mean NDVI values declined in drought years and increased in years with greater precipitation. Greening pixels were most prevalent in white spruce (Picea glauca) and subalpine fir (Abies lasiocarpa) dominant forests, suggesting that increased amounts of precipitation and rising temperatures have benefited both species and associated shrub communities. Forests where trembling aspen (Populas tremuloides) are dominant displayed the least greening, which may be explained by the proliferation of aspen serpentine leaf miner (Phyllocnistis populiella), and drought related die-back on south-facing slopes that have become warmer across the study period. |
format |
Thesis |
author |
Dexter J. Kotylak |
author_facet |
Dexter J. Kotylak |
author_sort |
Dexter J. Kotylak |
title |
Vegetation Trends in Whitehorse Yukon, 1984 to 2009 |
title_short |
Vegetation Trends in Whitehorse Yukon, 1984 to 2009 |
title_full |
Vegetation Trends in Whitehorse Yukon, 1984 to 2009 |
title_fullStr |
Vegetation Trends in Whitehorse Yukon, 1984 to 2009 |
title_full_unstemmed |
Vegetation Trends in Whitehorse Yukon, 1984 to 2009 |
title_sort |
vegetation trends in whitehorse yukon, 1984 to 2009 |
publishDate |
2018 |
url |
https://doi.org/10.32920/ryerson.14665377.v1 https://figshare.com/articles/thesis/Vegetation_Trends_in_Whitehorse_Yukon_1984_to_2009/14665377 |
long_lat |
ENVELOPE(164.050,164.050,-74.617,-74.617) |
geographic |
Browning Yukon |
geographic_facet |
Browning Yukon |
genre |
Whitehorse Yukon |
genre_facet |
Whitehorse Yukon |
op_relation |
doi:10.32920/ryerson.14665377.v1 https://figshare.com/articles/thesis/Vegetation_Trends_in_Whitehorse_Yukon_1984_to_2009/14665377 |
op_rights |
In Copyright |
op_doi |
https://doi.org/10.32920/ryerson.14665377.v1 |
_version_ |
1782341354705125376 |