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...
Main Author: | |
---|---|
Format: | Thesis |
Language: | unknown |
Published: |
2018
|
Subjects: | |
Online Access: | https://doi.org/10.32920/ryerson.14665377.v1 |
id |
ftsmithonian:oai:figshare.com:article/14665377 |
---|---|
record_format |
openpolar |
spelling |
ftsmithonian:oai:figshare.com:article/14665377 2023-05-15T18:44:08+02:00 Vegetation Trends In Whitehorse Yukon, 1984 To 2009 Dexter J. Kotylak (10865463) 2018-01-01T00:00:00Z https://doi.org/10.32920/ryerson.14665377.v1 unknown https://figshare.com/articles/thesis/Vegetation_Trends_In_Whitehorse_Yukon_1984_To_2009/14665377 doi:10.32920/ryerson.14665377.v1 In Copyright Uncategorized content 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 ftsmithonian https://doi.org/10.32920/ryerson.14665377.v1 2021-06-13T16:04:15Z 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 Unknown Browning ENVELOPE(164.050,164.050,-74.617,-74.617) Yukon |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftsmithonian |
language |
unknown |
topic |
Uncategorized content 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 |
Uncategorized content 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 (10865463) Vegetation Trends In Whitehorse Yukon, 1984 To 2009 |
topic_facet |
Uncategorized content 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 (10865463) |
author_facet |
Dexter J. Kotylak (10865463) |
author_sort |
Dexter J. Kotylak (10865463) |
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 |
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 |
https://figshare.com/articles/thesis/Vegetation_Trends_In_Whitehorse_Yukon_1984_To_2009/14665377 doi:10.32920/ryerson.14665377.v1 |
op_rights |
In Copyright |
op_doi |
https://doi.org/10.32920/ryerson.14665377.v1 |
_version_ |
1766234701464338432 |