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You searched for: Journal Journal of environmental quality Remove constraint Journal: Journal of environmental quality Publication Year 2014 Remove constraint Publication Year: 2014 Source 2014 v.43 no.4 Remove constraint Source: 2014 v.43 no.4
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1. Long-Term Environmental Research: The Upper Washita River Experimental Watersheds, Oklahoma, USA

Author:
Steiner, Jean L.; Starks, Patrick J.; Garbrecht, Jurgen D.; Moriasi, Daniel N.; Zhang, Xunchang; Schneider, Jeanne M.; Guzman, Jorge A.; Osei, Edward
Source:
Journal of environmental quality 2014 v.43 no.4 pp. 1227-1238
ISSN:
0047-2425
Subject:
Agricultural Research Service; climate; data collection; decision making; farms; humans; hydrology; infrastructure; issues and policy; land cover; landscapes; markets; risk; rivers; scientists; sediments; water quality; watersheds; weather; Oklahoma
Abstract:
... Water is central to life and earth processes, connecting physical, biological, chemical, ecological, and economic forces across the landscape. The vast scope of hydrologic sciences requires research efforts worldwide and across a wide range of disciplines. While hydrologic processes and scientific investigations related to sustainable agricultural systems are based on universal principles, researc ...
Handle:
10113/60564
DOI:
10.2134/jeq2014.05.0229

2. Seasonal Sediment and Nutrient Transport Patterns

Author:
Moriasi, D. N.; Guzman, J. A.; Steiner, J. L.; Starks, P. J.; Garbrecht, J. D.
Source:
Journal of environmental quality 2014 v.43 no.4 pp. 1334-1344
ISSN:
0047-2425
Subject:
conservation practices; data collection; environmental quality; lakes; no-tillage; nutrient management; nutrients; pollution load; riparian buffers; seasonal variation; sediments; spring; subwatersheds; summer; suspended sediment; time series analysis; water quality criteria; winter; Oklahoma
Abstract:
... It is essential to understand sediment and nutrient sources and their spatial and temporal patterns to design effective mitigation strategies. However, long-term data sets to determine sediment and nutrient loadings are scarce and expensive to collect. The goal of this study was to determine seasonal patterns of suspended sediment (SS), total N (TN), and total P (TP) concentrations and loadings fo ...
Handle:
10113/60562
DOI:
10.2134/jeq2013.11.0478

3. Upper Washita River Experimental Watersheds: Meteorologic and Soil Climate Measurement Networks

Author:
Starks, P. J.; Fiebrich, C. A.; Grimsley, D. L.; Garbrecht, J. D.; Steiner, J. L.; Guzman, J. A.; Moriasi, D. N.
Source:
Journal of environmental quality 2014 v.43 no.4 pp. 1239-1249
ISSN:
0047-2425
Subject:
Agricultural Research Service; agricultural watersheds; climate; conservation practices; environmental quality; equipment; flood control; hydrology; meteorological data; quality control; rivers; soil; soil erosion; Great Plains region; Oklahoma
Abstract:
... Hydrologic, watershed, water resources, and climate-related research conducted by the USDA-ARS Grazinglands Research Laboratory (GRL) are rooted in events dating back to the 1930s. In 1960, the 2927-km2 Southern Great Plains Research Watershed (SGPRW) was established to study the effectiveness of USDA flood control and soil erosion prevention programs. The size of the SGPRW was scaled back in 1978 ...
Handle:
10113/60553
DOI:
10.2134/jeq2013.08.0312

4. Upper Washita River Experimental Watersheds: Nutrient Water Quality Data

Author:
Starks, P. J.; Steiner, J. L.; Moriasi, D. N.; Guzman, J. A.; Garbrecht, J. D.; Allen, P. B.; Naney, J. W.
Source:
Journal of environmental quality 2014 v.43 no.4 pp. 1280-1297
ISSN:
0047-2425
Subject:
Agricultural Research Service; climate; climate change; conservation practices; data collection; environmental factors; environmental impact; groundwater; issues and policy; land use change; land use planning; models; rivers; streams; water quality; water reservoirs; watersheds; wells; Great Plains region; Oklahoma
Abstract:
... Climate variability, changing land use and management, and dynamic policy environments are the main reasons why long-term research is needed to understand and predict possible water quality outcomes to alternative future scenarios. Long-term water quality data sets are needed to address these water issues. Such data sets were acquired by the USDA–ARS in three watersheds in Oklahoma: the Southern G ...
Handle:
10113/60164
DOI:
10.2134/jeq2013.08.0309
PubMed:
25603076

5. Upper Washita River Experimental Watersheds: Physiography Data

Author:
Moriasi, Daniel N.; Starks, Patrick J.; Steiner, Jean L.; Guzman, Jorge A.; Allen, Paul B.; Naney, James W.
Source:
Journal of environmental quality 2014 v.43 no.4 pp. 1298-1309
ISSN:
0047-2425
Subject:
Agricultural Research Service; Internet; cooperative research; data collection; digital database; digital elevation models; geomorphology; hydrologic cycle; land use; rain; researchers; rivers; scientists; soil; stream channels; universities; watersheds; Oklahoma
Abstract:
... Physiographic data such as digital elevation models (DEMs), soils, geology, stream channel network characteristics, channel stability, and land use data are essential for understanding the complex hydrologic cycle and chemical transport processes of any given study area. We describe the physiographic data available in the Little Washita River Experimental Watershed (LWREW) and Fort Cobb Reservoir ...
Handle:
10113/60165
DOI:
10.2134/jeq2013.08.0337
PubMed:
25603077

6. Upper Washita River Experimental Watersheds: Reservoir, Groundwater, and Stream Flow Data

Author:
Moriasi, Daniel N.; Starks, Patrick J.; Guzman, Jorge A.; Garbrecht, Jurgen D.; Steiner, Jean L.; Stoner, J. Chris; Allen, Paul. B.; Naney, James W.
Source:
Journal of environmental quality 2014 v.43 no.4 pp. 1262-1272
ISSN:
0047-2425
Subject:
Soil and Water Assessment Tool model; data collection; gauges; groundwater; hydrologic data; land cover; land use; monitoring; rivers; seepage; simulation models; soil erosion; stream channels; stream flow; surface water; surveys; water quality; water reservoirs; water table; watershed hydrology; watersheds; wells; Great Plains region; Oklahoma
Abstract:
... Surface and groundwater quantity and quality data are essential in many hydrologic applications and to the development of hydrologic and water quality simulation models. We describe the hydrologic data available in the Little Washita River Experimental Watershed (LWREW) of the Southern Great Plains Research Watershed (SGPRW) and Fort Cobb Reservoir Experimental Watershed (FCREW), both located in s ...
Handle:
10113/60545
DOI:
10.2134/jeq2013.08.0329

7. Upper Washita River Experimental Watersheds: Sediment Database

Author:
Zhang, X. C .; Garbrecht, J. D.; Steiner, J. L.; Blazs, R. L.
Source:
Journal of environmental quality 2014 v.43 no.4 pp. 1273-1279
ISSN:
0047-2425
Subject:
conservation practices; data collection; databases; environmental quality; floods; instrumentation; rivers; sediments; soil erosion; soil erosion models; watershed hydrology; watersheds; Oklahoma
Abstract:
... One main objective for studying sediment in the Upper Washita River Experimental Watersheds was to improve the scientific understanding of the effectiveness of watershed conservation practices and floodwater-retardation structures in controlling floods and soil erosion in southwest Oklahoma. This paper summarizes the sediment data collection program in the watersheds during the 1961 to 2012 time p ...
Handle:
10113/60563
DOI:
10.2134/jeq2013.07.0288

8. Potential Use of Milk Urea Nitrogen to Abate Atmospheric Nitrogen Emissions from Wisconsin Dairy Farms

Author:
Powell, J. M.; Rotz, C. A.; Wattiaux, M. A.
Source:
Journal of environmental quality 2014 v.43 no.4 pp. 1169
ISSN:
0047-2425
Subject:
ammonia; cows; crude protein; dairy farming; dairy manure; dietary protein; excretion; farms; greenhouse gas emissions; herds; milk; milk production; milk secretion; monitoring; nitrogen; nitrous oxide; nutrient intake; production technology; urea nitrogen; Wisconsin
Abstract:
... Urinary urea N (UUN) is the principal nitrogen (N) source controlling emissions of ammonia (NH3) and nitrous oxide (N2O) from dairy manure. The objectives of this study were (i) to study the integrative nature of dietary crude protein (CP) management, secretion of milk urea N (MUN), excretion of UUN, and N emissions from dairy production systems; (ii) to evaluate how associative changes in dietary ...
Handle:
10113/62948
DOI:
10.2134/jeq2013.09.0375

9. Upper Washita River Experimental Watersheds: Multiyear Stability of Soil Water Content Profiles

Author:
Cosh, Michael H.; Starks, Patrick J.; Guzman, Jorge A.; Moriasi, Daniel N.
Source:
Journal of environmental quality 2014 v.43 no.4 pp. 1328-1333
ISSN:
0047-2425
Subject:
environmental monitoring; hydrologic data; hydrologic models; rhizosphere; rivers; soil depth; soil water; soil water content; spatial distribution; temporal variation; time series analysis; watersheds; Oklahoma
Abstract:
... Scaling in situ soil water content time series data to a large spatial domain is a key element of watershed environmental monitoring and modeling. The primary method of estimating and monitoring large-scale soil water content distributions is via in situ networks. It is critical to establish the stability of in situ networks when deploying them to study hydrologic systems. Two watersheds in Oklaho ...
Handle:
10113/59814
DOI:
10.2134/jeq2013.08.0318