Primary Production in the Flooded Terrestrial Ecosystems of the Columbia Basin
Author: D.J. MacKillop, G.F. Utzig
Estimates of productivity losses in the Columbia Basin dam impacts footprint area were derived through carbon modelling exercises supplemented by literature review. Literature reviews were used to assess and cross check modelled results and to determine the most relevant metrics available for assessing productivity and carbon dynamics. This involved a review of seminal literature relating to productivity and carbon dynamics, with an emphasis on ecosystems similar to those found in the Columbia Basin. Sources included government and academic websites, as well as databases of academic journals. In total, 110 data sources were identified. Modelled parameters include site index, annual increment, maximum mean annual increment, live biomass accumulation, carbon storage in dead organic material, net primary productivity (NPP), and net ecosystem productivity (NEP). Individual site series, non-forested sites, and deciduous leading stands, as mapped by Ketcheson et al. (2004) formed the basis for productivity assessments.
The mapping provided by Ketcheson et al. (2004) assigns map unit (site series) and structural stage (which can be used as an age surrogate) to each of the terrestrial ecosystem polygons. The structural stages reflect the state of the ecosystems at the time of the aerial photography used for mapping (generally 3 just prior to flooding). By linking the values for NPP, NEP and carbon pools to the site series, structural stages and black cottonwood presence values presented in the Ketcheson et al. (2004) mapping, a summary of the conditions for any of the variables can be displayed spatially or summarized by area for the time immediately prior to flooding.
The mapping provided by Ketcheson et al. (2004) assigns map unit (site series) and structural stage (which can be used as an age surrogate) to each of the terrestrial ecosystem polygons. The structural stages reflect the state of the ecosystems at the time of the aerial photography used for mapping (generally 3 just prior to flooding). By linking the values for NPP, NEP and carbon pools to the site series, structural stages and black cottonwood presence values presented in the Ketcheson et al. (2004) mapping, a summary of the conditions for any of the variables can be displayed spatially or summarized by area for the time immediately prior to flooding.
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Additional Info
Study Years: 2005
Published: 2005
Topics
Tags: Arrow Lakes Reservoir, Compensation, Dam Impacts, Duncan Reservoir, Footprint, FWCP, GPP, Gross Primary Productivity, Historic, Kinbasket Reservoir, Koocanusa Reservoir, Kootenay Canal, Lower Columbia River, Net Primary Productivity, NPP, Pend DOreille, Primary Productivity, Restoration Recommendations, Revelstoke Reservoir, Spillimacheen, Terrestrial, Upland, Wetland, Whatshan ReservoirPrimary Production in the Flooded Terrestrial Ecosystems of the Columbia Basin
Author: D.J. MacKillop, G.F. Utzig
Tags: Arrow Lakes Reservoir, Compensation, Dam Impacts, Duncan Reservoir, Footprint, FWCP, GPP, Gross Primary Productivity, Historic, Kinbasket Reservoir, Koocanusa Reservoir, Kootenay Canal, Lower Columbia River, Net Primary Productivity, NPP, Pend DOreille, Primary Productivity, Restoration Recommendations, Revelstoke Reservoir, Spillimacheen, Terrestrial, Upland, Wetland, Whatshan Reservoir
Estimates of productivity losses in the Columbia Basin dam impacts footprint area were derived through carbon modelling exercises supplemented by literature review. Literature reviews were used to assess and cross check modelled results and to determine the most relevant metrics available for assessing productivity and carbon dynamics. This involved a review of seminal literature relating to productivity and carbon dynamics, with an emphasis on ecosystems similar to those found in the Columbia Basin. Sources included government and academic websites, as well as databases of academic journals. In total, 110 data sources were identified.
Modelled parameters include site index, annual increment, maximum mean annual increment, live biomass accumulation, carbon storage in dead organic material, net primary productivity (NPP), and net ecosystem productivity (NEP). Individual site series, non-forested sites, and deciduous leading stands, as mapped by Ketcheson et al. (2004) formed the basis for productivity assessments.
Summary
The mapping provided by Ketcheson et al. (2004) assigns map unit (site series) and structural stage (which can be used as an age surrogate) to each of the terrestrial ecosystem polygons. The structural stages reflect the state of the ecosystems at the time of the aerial photography used for mapping (generally 3 just prior to flooding). By linking the values for NPP, NEP and carbon pools to the site series, structural stages and black cottonwood presence values presented in the Ketcheson et al. (2004) mapping, a summary of the conditions for any of the variables can be displayed spatially or summarized by area for the time immediately prior to flooding.