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RANGES improves satellite-based information and land cover assessments in southwest United States
Because of its influence on hydrology climate, and global biogeochemical cycles, land cover change may be the most significant agent of global environmental change. Land degradation results not onlyExpand
RZWQM simulation of long-term crop production, water and nitrogen balances in Northeast Iowa
Agricultural system models are tools to represent and understand major processes and their interactions in agricultural systems. We used the Root Zone Water Quality Model (RZWQM) with 26 years ofExpand
RZWQM simulated effects of crop rotation, tillage, and controlled drainage on crop yield and nitrate-N loss in drain flow
Accurate simulation of agricultural management effects on N loss in tile drainage is vitally important for understanding hypoxia in the Gulf of Mexico. An experimental study was initiated in 1978 atExpand
Spatial and temporal dynamics of vegetation in the San Pedro River basin area
Changes in climate and land management practices in the San Pedro River basin have altered the vegetation patterns and dynamics. Therefore, there is a need to map the spatial and temporalExpand
Sensitivity of tile drainage flow and crop yield on measured and calibrated soil hydraulic properties
Process-based agricultural system models require detailed description of soil hydraulic properties that are usually not available. The objectives of this study were to evaluate the sensitivity ofExpand
Evaluating and predicting agricultural management effects under tile drainage using modified APSIM
An accurate and management sensitive simulation model for tile-drained Midwestern soils is needed to optimize the use of agricultural management practices (e.g., winter cover crops) to reduce nitrateExpand
Coupling a grassland ecosystem model with Landsat imagery for a 10-year simulation of carbon and water budgets
In this study, high-spatial, low-temporal scale visible remote sensing data were used to calibrate an ecosystem model (EM) for semiarid perennial grasslands. The model was driven by dailyExpand
UAV hyperspectral and lidar data and their fusion for arid and semi‐arid land vegetation monitoring
Unmanned aerial vehicles (UAVs) provide a new research tool to obtain high spatial and temporal resolution imagery at a reduced cost. Rapid advances in miniature sensor technology are leading toExpand
Technology, complexity and change in agricultural production systems
Abstract Technological advances have contributed to impressive yield gains and have greatly altered US agriculture. Selective breeding and directed molecular techniques address biologicalExpand
Simulated N management effects on corn yield and tile-drainage nitrate loss
Thoroughly tested simulation models are needed to help quantify the long-term effects of agriculture. We evaluated the Root Zone Water Quality Model (RZWQM) response to different N managementExpand