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Your search keyword '"Moriasi, Daniel N."' showing total 23 results
Start Over Author "Moriasi, Daniel N." Publisher wiley
23 results on '"Moriasi, Daniel N."'

22. Modeling the impact of measured and projected climate and management systems on agricultural fields: Surface runoff, soil moisture, and soil erosion.

Author

Lee S, Moriasi DN, Fortuna AM, Mirchi A, Danandeh Mehr A, Chu ML, Guzman JA, and Starks P

Subjects
Oklahoma, Models, Theoretical, Environmental Monitoring, Triticum, Water Movements, Agriculture methods, Soil, Climate Change, Soil Erosion
Abstract

As global climate change poses a challenge to crop production, it is imperative to prioritize effective adaptation of agricultural systems based on a scientific understanding of likely impacts. In this study, we applied an integrated watershed modeling framework to examine the impacts of projected climate on runoff, soil moisture, and soil erosion under different management systems in Central Oklahoma. The proposed model uses measured climate data and three downscaled ensembles from the Coupled Model Intercomparison Project Phase 6 (CMIP6) at the water resources and erosion watershed to understand the impact of climate change and various climate conditions under three management systems: (1) continuous winter wheat (Triticum aestivum) under conventional tillage (WW-CT; baseline system), (2) continuous winter wheat under no-till (WW-NT), and (3) cool and warm season forage cover crop mixes under no-till (CC-NT). The study indicates that the occurrence of agricultural drought is projected to increase while erosion rates will remain unchanged under the WW-CT. In contrast, climate simulations imposed on the WW-NT and CC-NT systems significantly reduce runoff and sediment while preserving soil moisture levels. Especially, implementing the CC-NT system can bolster food security and foster sustainable farming practices in Central Oklahoma in the face of a changing climate., (© 2024 The Authors. Journal of Environmental Quality published by Wiley Periodicals LLC on behalf of American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America. This article has been contributed to by U.S. Government employees and their work is in the public domain in the USA.)

Published
2025
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23. The LTAR Integrated Common Experiment at Southern Plains.

Author

Fortuna AM, Northup B, Starks PJ, Moriasi DN, Steiner JL, Wagle P, Zhang XJ, Flanagan P, Busteed P, Teet S, Witt TW, Hunt S, Moffet C, Cibils A, and Gunter SA

Subjects
Conservation of Natural Resources methods, Soil, Animals, Environmental Monitoring, Cattle, Crops, Agricultural, Ecosystem, Seasons, Agriculture methods
Abstract

The Southern Plains (SP) is one of 18 Long-Term Agroecosystem Research network sites that combine strategic research projects with common measurements across multiple agroecosystems. Projects at the SP site focus on the use of indicator measurements to aid in assessment of land and nutrient management's impact on soil health, water quality, carbon and water balances, and forage biomass-quality in diversified, adaptive crop-livestock systems designed to overcome shifts in natural resources and climate. The prevailing treatment is tilled winter wheat (Triticum aestivum L.) that is grazed, hayed, harvested for grain, or grazed and harvested for grain. The alternative treatment is year-round annual cover crop forage mixes for cattle (Bos taurus) production planted in fall and spring under conservation tillage management. The area is subject to variable weather and climatic shifts that reduce the potential to diversify forage crops and limit grazing in southern tall grass prairies and small grain systems. Incorporation of fertilized, rain-fed, annual cool and warm season mixtures of cover crops could fill forage gaps. The presence of year-round ground cover reduces sediment and nutrient loading to surface waters while enhancing soil health and water holding capacity. Tools to aid agricultural producers and land and water resource managers have been developed and implemented to determine how climate, topography, and varying conservation management practices alter hydrological structures, greenhouse gas emissions, water usage, and soil resources., (Published 2024. This article is a U.S. Government work and is in the public domain in the USA.)

Published
2024
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