caa a22 4500 445384158 CHVBK 20180317143026.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1007/s10021-011-9444-8 doi (NATIONALLICENCE)springer-10.1007/s10021-011-9444-8 Landscape-Scale Simulation of Heterogeneous Fire Effects on Pyrogenic Carbon Emissions, Tree Mortality, and Net Ecosystem Production [Elektronische Daten] [Garrett Meigs, David Turner, William Ritts, Zhiqiang Yang, Beverly Law] Fire influences carbon dynamics from local to global scales, but many uncertainties remain regarding the remote detection and simulation of heterogeneous fire effects. This study integrates Landsat-based remote sensing and Biome-BGC process modeling to simulate the effects of high-, moderate-, and low-severity fire on pyrogenic emissions, tree mortality, and net ecosystem production. The simulation area (244,600ha) encompasses four fires that burned approximately 50,000ha in 2002-2003 across the Metolius Watershed, Oregon, USA, as well as in situ measurements of postfire carbon pools and fluxes that we use for model evaluation. Simulated total pyrogenic emissions were 0.732 Tg C (2.4% of equivalent statewide anthropogenic carbon emissions over the same 2-year period). The simulated total carbon transfer due to tree mortality was fourfold higher than pyrogenic carbon emissions, but dead wood decomposition will occur over decades. Immediately postfire, burned areas were a simulated carbon source (net C exchange: −0.076 Tg C y−1; mean±SD: −142±121g C m−2 y−1). As expected, high-severity, stand-replacement fire had disproportionate carbon impacts. The per-unit area effects of moderate-severity fire were substantial, however, and the extent of low-severity fire merits its inclusion in landscape-scale analyses. These results demonstrate the potential to reduce uncertainties in landscape to regional carbon budgets by leveraging Landsat-based fire products that account for both stand-replacement and partial disturbance. Springer Science+Business Media, LLC, 2011 Biome-BGC nationallicence carbon modeling nationallicence disturbance nationallicence emission nationallicence fire nationallicence Landsat nationallicence MTBS nationallicence net ecosystem production nationallicence tree mortality nationallicence Meigs Garrett Department of Forest Ecosystems and Society, Oregon State University, 97331, Corvallis, Oregon, USA aut Turner David Department of Forest Ecosystems and Society, Oregon State University, 97331, Corvallis, Oregon, USA aut Ritts William Department of Forest Ecosystems and Society, Oregon State University, 97331, Corvallis, Oregon, USA aut Yang Zhiqiang Department of Forest Ecosystems and Society, Oregon State University, 97331, Corvallis, Oregon, USA aut Law Beverly Department of Forest Ecosystems and Society, Oregon State University, 97331, Corvallis, Oregon, USA aut Ecosystems Springer-Verlag 14/5(2011-08-01), 758-775 1432-9840 14:5<758 2011 14 10021 https://doi.org/10.1007/s10021-011-9444-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10021-011-9444-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Meigs Garrett Department of Forest Ecosystems and Society, Oregon State University, 97331, Corvallis, Oregon, USA aut NATIONALLICENCE 700 1- Turner David Department of Forest Ecosystems and Society, Oregon State University, 97331, Corvallis, Oregon, USA aut NATIONALLICENCE 700 1- Ritts William Department of Forest Ecosystems and Society, Oregon State University, 97331, Corvallis, Oregon, USA aut NATIONALLICENCE 700 1- Yang Zhiqiang Department of Forest Ecosystems and Society, Oregon State University, 97331, Corvallis, Oregon, USA aut NATIONALLICENCE 700 1- Law Beverly Department of Forest Ecosystems and Society, Oregon State University, 97331, Corvallis, Oregon, USA aut NATIONALLICENCE 773 0- Ecosystems Springer-Verlag 14/5(2011-08-01), 758-775 1432-9840 14:5<758 2011 14 10021 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer