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Created: | Nov 19, 2019 at 6:30 a.m. | |
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Abstract
The 'Stems' data are from an individual tree segmentation (Swetnam and Falk 2014) derived from the 2010 snow-off lidar and biomass-carbon allometric equations. The purpose of the dataset is to evaluate the distribution of aboveground carbon across an elevation gradient in temperature and precipitation.
The '10m Topo points' data are derived from a bare earth digital elevation model (DEM) generated from the 2010 snow-off lidar flight, these include the topographic metrics and the biomass-carbon for each pixel derived from the sum of STEMS. The purpose of the dataset is to evaluate the distribution of aboveground carbon across an elevation gradient in temperature and precipitation.
A total of three catchments in Boulder Creek were analyzed: Como Creek, Gordon Gulch, and Betasso Preserve.
Significance Statement:
Forest carbon reservoirs in complex terrain along an elevation-climate gradient spanning an 11 Celsius range in mean annual temperature (MAT) and a 50 cm yr-1 range in mean annual precipitation (MAP) did not exhibit the expected response of increasing in size with greater MAP and idealized MAT. Within catchments, the distribution of mean and peak carbon storage doubled in size for valleys versus ridges. These results suggest spatial variations in carbon storage relate more to topographically mediated water availability, as well as aspect (energy-balance) and topographic curvature (a proxy for soil depth and depth to ground water), than elevation-climate gradients. Consequently, lateral redistribution of precipitation across topographic position may either moderate or exacerbate regional climatic controls over ecosystem productivity and tree-level responses during drought.
Subject Keywords
Coverage
Spatial
Temporal
Start Date: | |
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End Date: |
Content
ReadMe.md
Cross-CZO -- Topographic Carbon Storage, GIS/Map Data, LiDAR, Land Cover -- Betasso -- (2010)
OVERVIEW
Description/Abstract
The 'Stems' data are from an individual tree segmentation (Swetnam and Falk 2014) derived from the 2010 snow-off lidar and biomass-carbon allometric equations. The purpose of the dataset is to evaluate the distribution of aboveground carbon across an elevation gradient in temperature and precipitation.
The '10m Topo points' data are derived from a bare earth digital elevation model (DEM) generated from the 2010 snow-off lidar flight, these include the topographic metrics and the biomass-carbon for each pixel derived from the sum of STEMS. The purpose of the dataset is to evaluate the distribution of aboveground carbon across an elevation gradient in temperature and precipitation.
A total of three catchments in Boulder Creek were analyzed: Como Creek, Gordon Gulch, and Betasso Preserve.
Significance Statement:
Forest carbon reservoirs in complex terrain along an elevation-climate gradient spanning an 11 Celsius range in mean annual temperature (MAT) and a 50 cm yr-1 range in mean annual precipitation (MAP) did not exhibit the expected response of increasing in size with greater MAP and idealized MAT. Within catchments, the distribution of mean and peak carbon storage doubled in size for valleys versus ridges. These results suggest spatial variations in carbon storage relate more to topographically mediated water availability, as well as aspect (energy-balance) and topographic curvature (a proxy for soil depth and depth to ground water), than elevation-climate gradients. Consequently, lateral redistribution of precipitation across topographic position may either moderate or exacerbate regional climatic controls over ecosystem productivity and tree-level responses during drought.
Creator/Author
Tyson Lee Swetnam|Paul Brooks|Holly Barnard|Adrian Harpold|Erika Gallo
CZOs
Boulder|Catalina-Jemez
Contact
Tyson Lee Swetnam, University of Arizona, 1064 E Lowell St Tucson AZ 85721, tswetnam@email.arizona.edu
Subtitle
Topographic Carbon Storage
SUBJECTS
Disciplines
GIS / Remote Sensing|Biology / Ecology|Geomorphology|Hydrology
Topics
Topographic Carbon Storage|GIS/Map Data|LiDAR|Land Cover
Keywords
GIS|Topography|Morphometry|Carbon|Biomass
Variables
X|Y|ID|UTME|UTMN|HT|PRED|AREA|EQDIAM|MAJAX|MINAX|MAXHT|MINHT|MEANHT|EVT_Boulder|xmin|xmax|ymin|ymax|sten_num|agc_sum|nrmht|slope|aspect|cata|planc|twi|vllydpth|tpi|slpht|genc|midslp|dem|stdht|profc
Variables ODM2
Biomass, above-ground|Area|Aspect|Watershed deliniation|Digital elevation model|Tree crown measurement|Vegetation type|Lidar|Height|Recorder code|Slope|Curvature|Topographic Position Index (TPI)|Topographic wetness index (TWI)|Distance
TEMPORAL
Date Start
2010-05-01
Date End
2010-05-01
SPATIAL
Field Areas
Betasso
Location
Betasso
North latitude
40.01572
South latitude
40.006679999999996
West longitude
-105.34369646922146
East longitude
-105.33378
REFERENCE
Citation
Swetnam and Falk, Application of metabolic scaling theory to reduce error in local maxima tree segmentation from aerial LiDAR, 2014, Forest Ecology and Management, 323, 158-167.
Publications using this data
Swetnam T.L. and Falk D.A. (2014). Application of Metabolic Scaling Theory to reduce error in local maxima tree segmentation from aerial LiDAR. Forest Ecology and Management 323: 158–167 http://dx.doi.org/10.1016/j.foreco.2014.03.016
CZO ID
5131
Award Grant Numbers
Department of Energy - DE-SC0006968
National Science Foundation - NSF-1331408
COMMENTS
Comments
Description of the data production are given in the Supplemental Information in Swetnam et al. (in review) and are online at: href=https://pods.cyverse.org/wiki/display/~tyson_swetnam/Mapping+aboveground+biomass+from+individual+tree+segmentation+data> Mapping aboveground biomass from individual tree segmentation data
Additional Metadata
Name | Value |
---|---|
czos | Boulder, Catalina-Jemez |
czo_id | 5131 |
citation | Swetnam and Falk, Application of metabolic scaling theory to reduce error in local maxima tree segmentation from aerial LiDAR, 2014, Forest Ecology and Management, 323, 158-167. |
comments | Description of the data production are given in the Supplemental Information in Swetnam et al. (in review) and are online at: href=https://pods.cyverse.org/wiki/display/~tyson_swetnam/Mapping+aboveground+biomass+from+individual+tree+segmentation+data> Mapping aboveground biomass from individual tree segmentation data |
keywords | GIS, Topography, Morphometry, Carbon, Biomass |
subtitle | Topographic Carbon Storage |
variables | X, Y, ID, UTME, UTMN, HT, PRED, AREA, EQDIAM, MAJAX, MINAX, MAXHT, MINHT, MEANHT, EVT_Boulder, xmin, xmax, ymin, ymax, sten_num, agc_sum, nrmht, slope, aspect, cata, planc, twi, vllydpth, tpi, slpht, genc, midslp, dem, stdht, profc |
disciplines | GIS / Remote Sensing, Biology / Ecology, Geomorphology, Hydrology |
Credits
Funding Agencies
This resource was created using funding from the following sources:
Agency Name | Award Title | Award Number |
---|---|---|
Department of Energy | DE-SC0006968 | |
National Science Foundation | NSF-1331408 |
How to Cite
This resource is shared under the Creative Commons Attribution CC BY.
http://creativecommons.org/licenses/by/4.0/
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