- About
-
The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 1 to 3 of 3 (0.086 seconds)Spelling suggestions: "subject:"boreal ecosystem productivity asimulator"" "subject:"boreal ecosystem productivity estimulator""
| 1 |
Leaf Area Index, Carbon Cycling Dynamics and Ecosystem Resilience in Mountain Pine Beetle Affected Areas of British Columbia from 1999 to 2008Czurylowicz, Peter 30 November 2011 (has links)
The affect on leaf area index (LAI) and net ecosystem production (NEP) of the mountain pine beetle (Dendroctonus ponderosae) (MPB) outbreak in British Columbia affecting lodgepole pine (Pinus contorta var. latifolia) forests was examined from 1999 to 2008. The process-based carbon (C) cycle model – Boreal Ecosystem Productivity Simulator (BEPS) with remotely sensed LAI inputs was used to produce annual NEP maps, which were validated using field measurements. The annual NEP ranged from 2.43 to -8.03 MtC between 1999 and 2008, with sink to source conversion in 2000. The inter-annual variability for both LAI and NEP displayed initial decreases followed by a steadily increasing trend from 2006 to 2008 with NEP returning to near C neutrality in 2008 (-1.84 MtC). The resistance of LAI and NEP to MPB attack was attributed to ecosystem resilience in the form of secondary overstory growth and increased production of non-attacked host trees.
|
| 2 |
Leaf Area Index, Carbon Cycling Dynamics and Ecosystem Resilience in Mountain Pine Beetle Affected Areas of British Columbia from 1999 to 2008Czurylowicz, Peter 30 November 2011 (has links)
The affect on leaf area index (LAI) and net ecosystem production (NEP) of the mountain pine beetle (Dendroctonus ponderosae) (MPB) outbreak in British Columbia affecting lodgepole pine (Pinus contorta var. latifolia) forests was examined from 1999 to 2008. The process-based carbon (C) cycle model – Boreal Ecosystem Productivity Simulator (BEPS) with remotely sensed LAI inputs was used to produce annual NEP maps, which were validated using field measurements. The annual NEP ranged from 2.43 to -8.03 MtC between 1999 and 2008, with sink to source conversion in 2000. The inter-annual variability for both LAI and NEP displayed initial decreases followed by a steadily increasing trend from 2006 to 2008 with NEP returning to near C neutrality in 2008 (-1.84 MtC). The resistance of LAI and NEP to MPB attack was attributed to ecosystem resilience in the form of secondary overstory growth and increased production of non-attacked host trees.
|
| 3 |
Monitoring Crop Evapotranspiration in the Western Lake Erie Basin Using Optical SensorsMarambe Kodippili Arachchilage, Yahampath Anuruddha Marambe 26 November 2018 (has links)
No description available.
|
Page generated in 0.0909 seconds