daycent simulations to test the influence of fire regime and fire suppression on trace gas fluxes and nitrogen biogeochemistry of colorado forestsdaycent模拟测试消防制度和灭火的影响在微量气体通量和氮生物地球化学科罗拉多森林.pdf

Forests 2012, 3, 506-527; doi:10.3390/f3030506 OPEN ACCESS forests ISSN 1999-4907 /journal/forests Article DAYCENT Simulations to Test the Influence of Fire Regime and Fire Suppression on Trace Gas Fluxes and Nitrogen Biogeochemistry of Colorado Forests ,† ‡ Mark A. Gathany * and Ingrid C. Burke Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO 80523, USA; E-Mail: iburke@ † Current address: Department of Science and Mathematics, Cedarville University, 251 N Main Street, Cedarville, OH 45314, USA. ‡ Current address: Department of Botany, Department of Ecosystem Science and Management, Program in Ecology, and Environment and Natural Resources Program, University of Wyoming, Laramie, WY 82072, USA. * Author to whom correspondence should be addressed; E-Mail: mgathany@; Tel.: +1-937-766-3823. Received: 3 May 2012; in revised form: 6 June 2012 / Accepted: 9 July 2012 / Published: 24 July 2012 Abstract: Biological activity and the physical environment regulate greenhouse gas fluxes (CH , N O and NO) from upland soils. Wildfires are known to alter these factors such that 4 2 we collected daily weather records, fire return intervals, or specific fire years, and soil data of four specific sites along the Colorado Front Range. These data were used as primary inputs into DAYCENT. In this paper we test the ability of DAYCENT to simulate four forested sites in