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- Gaillard, Richard K.; Jones, Curtis D.; Ingraham, Pete; Collier, Sarah; Izaurralde, Roberto Cesar; Jokela, William; Osterholz, William; Salas, William; Vadas, Peter; Ruark, Matthew D.
- Ecological applications 2018 v.28 no.3 pp. 694-708
- agricultural land; agroecosystems; ammonium; cropping systems; data collection; denitrification; greenhouse gas emissions; issues and policy; model validation; models; nitrates; nitrogen fertilizers; nitrous oxide; regression analysis; soil temperature; water content
- ... Process‐based models are increasingly used to study agroecosystem interactions and N₂O emissions from agricultural fields. The widespread use of these models to conduct research and inform policy benefits from periodic model comparisons that assess the state of agroecosystem modeling and indicate areas for model improvement. This work provides an evaluation of simulated N₂O flux from three process ...
- Data from: Underestimation of N2O emissions in a comparison of the DayCent, DNDC, and EPIC 1 models
- Chorus Open Access:
- Li, Xia; McCarty, Gregory W.; Karlen, Douglas L.; Cambardella, Cynthia A.
- Catena 2018 v.160 pp. 222-232
- cesium; cropland; lidar; lowlands; models; prediction; radionuclides; soil organic carbon; soil properties; streams; tillage; topography; topsoil; water flow; watersheds; Iowa
- ... Topography is one of the key factors affecting soil organic carbon (SOC) distribution and soil redistribution (erosion or deposition) because it influences the gravity-driven movement of soil by water flow and tillage operations. In this study, we examined impacts of sixteen topographic metrics derived from Light Detection and Ranging (LiDAR) data on SOC distribution in agricultural fields. We ado ...
- Data from: Soil organic carbon and isotope composition response to topography and erosion in Iowa