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Simulation Of Water Use Conservation Scenarios For The Mississippi Delta Using An Existing Regional Groundwater Flow Model
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Book Synopsis Simulation of Water-Use Conservation Scenarios for the Mississippi Delta Using an Existing Regional Groundwater Flow Model by : Jeannie R. B. Barlow
Download or read book Simulation of Water-Use Conservation Scenarios for the Mississippi Delta Using an Existing Regional Groundwater Flow Model written by Jeannie R. B. Barlow and published by Geological Survey (USGS). This book was released on 2011-01-01 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geology and Natural Resources of Nigeria by : Silas S. Dada
Download or read book Geology and Natural Resources of Nigeria written by Silas S. Dada and published by CRC Press. This book was released on 2024-07-16 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geology and Natural Resources of Nigeria is an up‐to‐date and comprehensive overview of the geological framework of the continental crust of Nigeria, its evolution, and the natural resources it holds. It covers a wide set of topics and provides a detailed description of the rock units of the Nigerian continental crust, their geological settings and structural characteristics, and the potential of their mineral, energy, and water resources. The book discusses the impact of geo‐resources on the Nigerian economy, includes recommendations on how to fully exploit geo‐resources, and explains how to prevent geological processes that could lead to natural hazards. FEATURES Provides different aspects of the Nigerian continental crust from a multidisciplinary approach Draws on the latest findings in geoscience research to present new insights and perspectives into the development and resource potential of the Nigerian continental crust Includes multiple case studies to illustrate the exploration and evaluation of the geological resources of Nigeria Explores the potential of geological resources for economic and industrial development Presents scientific achievements of authors and researchers from various disciplines and provides recommendations for mitigating natural hazards This handbook is intended for industry professionals, academics, researchers, and students studying earth sciences with a special interest in Africa and learning how its geology impacts the natural resources and overall economy of the continent.
Book Synopsis Simulation of Water-management Scenarios for the Mississippi Delta by : Connor J. Haugh
Download or read book Simulation of Water-management Scenarios for the Mississippi Delta written by Connor J. Haugh and published by . This book was released on 2020 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rural Land Change and the Capacity for Ecosystem Conservation and Sustainable Production in North America by : Alisa W. Coffin
Download or read book Rural Land Change and the Capacity for Ecosystem Conservation and Sustainable Production in North America written by Alisa W. Coffin and published by Frontiers Media SA. This book was released on 2022-04-26 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Agriculture--a River Runs Through it by : Paul D. Capel
Download or read book Agriculture--a River Runs Through it written by Paul D. Capel and published by Geological Survey. This book was released on 2018 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Format not distributed to depository libraries.
Book Synopsis Journal of Soil and Water Conservation by :
Download or read book Journal of Soil and Water Conservation written by and published by . This book was released on 2014 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. 25, no. 1 contains the society's Lincoln Chapter's Resource conservation glossary.
Book Synopsis Modeling Effects of Climatological Variability and Management Practices on Conservation of Groundwater from the Mississippi River Valley Shallow Alluvial Aquifer in the Mississippi Delta Region by :
Download or read book Modeling Effects of Climatological Variability and Management Practices on Conservation of Groundwater from the Mississippi River Valley Shallow Alluvial Aquifer in the Mississippi Delta Region written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Ninety-eight percent of water taken from the Mississippi River Shallow Alluvial Aquifer, hereafter referred to as "the aquifer" or "MRVA," is used by the agricultural industry for irrigation. Mississippi Delta agriculture is increasingly using more water from the MRVA and the aquifer has been losing about 300,000 acre-feet per year. This research expands on previous work in which a model was developed that simulates the effects of climatic variability, crop acreage changes, and specific irrigation methods on consequent variations in the water volume of the MRVA. This study corrects an identified problem by replacing total growing season precipitation with an irrigation demand driver based on evaporation and crop coefficients and changing the time scale from the entire growing season to a daily resolution. The calculated irrigation demand, as a climatological driver for the model, captures effective precipitation more precisely than the initial growing season precipitation driver. Predictive equations resulting from regression analyses of measured versus calculated irrigation water use showed R2 and correlations of 0.33 and 0.57, 0.77 and 0.88, 0.71 and 0.84, and 0.68 and 0.82 for cotton, corn, soybeans and rice, respectively. Ninety-five percent of the predicted values fall within a range of + or - about 23,000 acre-feet, an error of about 10-percent. The study also adds an additional conservation strategy through the use of surface water from on-farm reservoirs in lieu of groundwater. Analyses show that climate could provide the entire water need of the plants in 70-percent of the years for corn, 65-percent of the years for soybeans and cotton, and even 5-percent of the years for rice. Storing precipitation in on-farm structures is an effective way to reduce reliance of Delta producers on groundwater. If producers adopted, at a minimum, the 97.5:2.5 ratio suggested management practice, this minimal management strategy could potentially conserve 48-percent, 35-percent and 42-percent of groundwater for cotton, corn and soybeans, respectively. Even in extreme drought years such as 2007, cotton, corn and soybeans produced under the 97.5:2.5 management strategy could conserve 32-percent, 46-percent and 38-percent of groundwater, respectively.
Book Synopsis Enhancements to the Mississippi Embayment Regional Aquifer Study (MERAS) Groundwater-flow Model and Simulations of Sustainable Water-level Scenarios by : Brian R. Clark
Download or read book Enhancements to the Mississippi Embayment Regional Aquifer Study (MERAS) Groundwater-flow Model and Simulations of Sustainable Water-level Scenarios written by Brian R. Clark and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water Quality Assessments in the Mississippi Delta by : Mary T. Nett
Download or read book Water Quality Assessments in the Mississippi Delta written by Mary T. Nett and published by . This book was released on 2004 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: All 50 states are implementing mandates of Total Maximum Daily Load (TMDL) assignments for contaminants likely to impact water in the United States, making water quality management a timely topic. TMDL criteria are a new initiative under the Clean Water Act and of critical importance to agricultural producers and state and federal regulators. Unfortunately, few precedents for assignment of pollutant maxima exist. This volume will show what one state (Mississippi) is doing to determine the most cost-effective and reliable practices for reducing the potential for non-point source pollution of U.S. waters. Readers may be able to apply some of the lessons learned in the Mississippi Delta Management Systems Evaluation Area (MDMSEA) to their own region.
Book Synopsis Delta Waters by : National Research Council
Download or read book Delta Waters written by National Research Council and published by National Academies Press. This book was released on 2013-12-12 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Water Institute of the Gulf is a not-for-profit, independent research institute dedicated to advancing the understanding of coastal, deltaic, river and water resource systems, both within the Gulf Coast and around the world. Their mission supports the practical application of innovative science and engineering, providing solutions that benefit society. Those who make policy for coastal and deltaic systems, as well as managers of natural resources, need high-quality science and engineering to guide their decisions. The Water Institute of the Gulf began operations in 2012 to address exactly this sort of challenge. Delta Waters offers advice to The Water Institute of the Gulf that it might use as part of its strategic planning process. This report focuses on strategic research to support integrated water resources management in the lower Mississippi River delta and includes international comparative assessments. The recommendations of Delta Waters promote a human and environmental systems approach to scientific research that supports integrated water and environmental resources management in the lower Mississippi River and delta, and offers ideas regarding comparative assessments with other, relevant deltaic regions around the world. This report provides input for research into common deltaic problems and challenges, identifies strategic research for The Water Institute of the Gulf, and suggests ways that the organization can utilize knowledge gained from the lower Mississippi River and delta system in developing a research program to support water management decisions in other large river/delta complexes.
Book Synopsis Characterizing Spatial and Temporal Changes and Driving Factors of Groundwater and Surface-water Interactions Within the Mississippi Portion of the Mississippi Alluvial Plain by : Courtney Killian
Download or read book Characterizing Spatial and Temporal Changes and Driving Factors of Groundwater and Surface-water Interactions Within the Mississippi Portion of the Mississippi Alluvial Plain written by Courtney Killian and published by . This book was released on 2018 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Mississippi Alluvial Plain, a robust agricultural region in the South-Central United States, provides commodities across the United States and around the world. Water for irrigation, which is necessary due to irregular rainfall patterns during the growing season, is withdrawn largely from the Mississippi River Valley Alluvial aquifer, one of the most intensely used aquifers in the United States. The groundwater-dependent region has observed recent declines in groundwater and streamflow levels, raising concerns about the availability and use of fresh-water resources. Declining water levels have prompted investigation into the current understanding of groundwater and surface water interaction. Previous research does not adequately quantify the unobservable exchange of water between surface-water bodies and the underlying aquifer. This research was designed to advance the current understanding of the interaction between groundwater and surface water through the quantification of spatial and temporal trends in streamflow and groundwater level changes and the use of high-resolution spatial estimates of streambed hydraulic conductivity. Changes in streamflow and groundwater levels were quantified with the use of hydrograph-separation techniques and trend analyses. High-resolution estimates of streambed hydraulic conductivity were found through the correlation of waterborne continuous resistivity profiling data to hydraulic conductivity and streambed hydraulic conductivity estimates were incorporated into the existing Mississippi Embayment Regional Aquifer Study (MERAS) groundwater-flow model. Site-specific empirical relationships between resistivity and hydraulic conductivity were developed with near-stream borehole geophysical logs to improve model estimates of streambed hydraulic conductivity. Results of the quantification of changes in streamflow and groundwater levels suggested agricultural groundwater withdrawals for irrigation to be the primary source of groundwater-level declines. Results from the incorporation of high-resolution estimates of streambed hydraulic conductivity showed that the existing groundwater-flow model is sensitive to changes in streambed hydraulic conductivity, which may impact model accuracy. The incorporation of streambed hydraulic conductivity estimates derived from site-specific empirical relationships impacted MERAS model water-budget estimates. Information gained from this research will be used to improve the existing groundwater-flow model, which acts as a decision-support tool for water-resource managers at state and local levels to make informed water-use decisions for the conservation of fresh-water resources for sustainable agricultural irrigation practices.
Book Synopsis Evaluation of Three Scenarios of Ground-water Withdrawal from the Mississippi River Alluvial Aquifer in Northwestern Mississippi by : Michael J. Mallory
Download or read book Evaluation of Three Scenarios of Ground-water Withdrawal from the Mississippi River Alluvial Aquifer in Northwestern Mississippi written by Michael J. Mallory and published by . This book was released on 1990 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water Quality Monitoring and Modeling Studies of On-farm Water Storage Systems in a Mississippi Delta Agricultural Watershed by : Juan David Pérez-Gutiérrez
Download or read book Water Quality Monitoring and Modeling Studies of On-farm Water Storage Systems in a Mississippi Delta Agricultural Watershed written by Juan David Pérez-Gutiérrez and published by . This book was released on 2017 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Federal and state programs have encouraged farmers in the Mississippi Delta region to implement best management practices (BMPs) to promote soil and water conservation. An on-farm water storage (OFWS) system is a structural BMP that has several potential benefits, namely, the ability to capture and reuse rainwater and tailwater runoff, provide supplemental water for irrigation, reduce groundwater withdrawals, and improve downstream water quality. However, research demonstrating these benefits and providing new insights for downstream water quality improvement and nutrient-rich runoff management is limited. This dissertation addresses these research gaps by examining the ability of OFWS systems to mitigate off-site nutrient movement, analyzing the impacts of rainfall characteristics on the ability of OFWS systems to reduce NO3-N, studying the hydrological and physical-chemical characteristics of the volume of water exiting an OFWS system, and using the AnnAGNPS model to simulate runoff, nutrient, and sediment loads entering a tailwater recovery ditch and identify the critical contributing areas of non-point source pollution. Significant seasonal water quality improvements were observed at different locations throughout the OFWS system, and more importantly, highlight downstream nutrient reduction, particularly during winter and spring. However, recurrent and high intensity rainfall events can minimize the system’s effectiveness in reducing downstream nutrient pollution. The NO3-N concentrations observed in the ditch were strongly dependent on antecedent hydrological conditions with characteristics of next-to-last rainfall events playing a more influential role. The nutrient load was greater in winter, as this season produced the highest effluent discharge. Agricultural fields draining to the outlet of the system produced 7.1 kg NO3-N ha−1 yr−1 and 2.3 kg TP ha−1 yr−1 that was discharged with outflow events. AnnAGNPS simulations showed that larger fields coupled with poorly drained soils resulted in higher runoff, and this condition mirrored the annual rainfall patterns. High nitrogen loss was due to fertilization of corn and winter wheat. TP and sediment loss patterns were similar and influenced by the hydrological condition. This study can be used by stakeholders and agencies to better identify where these systems can be implemented to improve water quality and offer a supplemental source of surface water.
Book Synopsis Development of an Interactive Model Predicting Climatological and Cultural Influences on Annual Groundwater Volume in the Mississippi Delta Shallow Alluvial Aquifer by : Tia Lení Merrell
Download or read book Development of an Interactive Model Predicting Climatological and Cultural Influences on Annual Groundwater Volume in the Mississippi Delta Shallow Alluvial Aquifer written by Tia Lení Merrell and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Water volume in the shallow alluvial aquifer in the Mississippi Delta region is subject to seasonal declines and annual fluctuations caused by both climatological variability and crop water use variations from year-to-year. The most recently documented water volume decline in the aquifer is estimated at 500,000 acre-feet. Available climate, crop acreage, irrigation water use, and groundwater decline data from Sunflower County, MS are used to evaluate the climate-groundwater interactions in the Mississippi Delta region. This research produced a model that simulates the effects of climatic variability, crop acreage changes, and specific irrigation methods on consequent variations in the water volume in the aquifer. Climatic variability is accounted for in the model by predicative equations that relate annual measured plant water use (irrigation) to growing season precipitation amounts. This derived relationship allows the application of a long-term climatological record to simulate the cumulative impact of climate on groundwater used for irrigation.
Book Synopsis Streamflow depletion by wells by : Paul M. Barlow
Download or read book Streamflow depletion by wells written by Paul M. Barlow and published by . This book was released on 2012 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterizing Spatial and Temporal Changes and Driving Factors of Groundwater and Surface-water Interactions Within the Mississippi Portion of the Mississippi Alluvial Plain by :
Download or read book Characterizing Spatial and Temporal Changes and Driving Factors of Groundwater and Surface-water Interactions Within the Mississippi Portion of the Mississippi Alluvial Plain written by and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Mississippi Alluvial Plain, a robust agricultural region in the South-Central United States, provides commodities across the United States and around the world. Water for irrigation, which is necessary due to irregular rainfall patterns during the growing season, is withdrawn largely from the Mississippi River Valley Alluvial aquifer, one of the most intensely used aquifers in the United States. The groundwater-dependent region has observed recent declines in groundwater and streamflow levels, raising concerns about the availability and use of fresh-water resources. Declining water levels have prompted investigation into the current understanding of groundwater and surface-water interaction. Previous research does not adequately quantify the unobservable exchange of water between surface-water bodies and the underlying aquifer. This research was designed to advance the current understanding of the interaction between groundwater and surface water through the quantification of spatial and temporal trends in streamflow and groundwater level changes and the use of high-resolution spatial estimates of streambed hydraulic conductivity. Changes in streamflow and groundwater levels were quantified with the use of hydrograph-separation techniques and trend analyses. High-resolution estimates of streambed hydraulic conductivity were found through the correlation of waterborne continuous resistivity profiling data to hydraulic conductivity and streambed hydraulic conductivity estimates were incorporated into the existing Mississippi Embayment Regional Aquifer Study (MERAS) groundwater-flow model. Site-specific empirical relationships between resistivity and hydraulic conductivity were developed with near-stream borehole geophysical logs to improve model estimates of streambed hydraulic conductivity. Results of the quantification of changes in streamflow and groundwater levels suggested agricultural groundwater withdrawals for irrigation to be the primary source of grou
Book Synopsis DEVELOPMENT OF AN INTERACTIVE MODEL PREDICTING CLIMATOLOGICAL AND CULTURAL INFLUENCES ON ANNUAL GROUNDWATER VOLUME IN THE MISSISSIPPI DELTA SHALLOW ALLUVIAL AQUIFER. by :
Download or read book DEVELOPMENT OF AN INTERACTIVE MODEL PREDICTING CLIMATOLOGICAL AND CULTURAL INFLUENCES ON ANNUAL GROUNDWATER VOLUME IN THE MISSISSIPPI DELTA SHALLOW ALLUVIAL AQUIFER. written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Water volume in the shallow alluvial aquifer in the Mississippi Delta region is subject to seasonal declines and annual fluctuations caused by both climatological variability and crop water use variations from year-to-year. The most recently documented water volume decline in the aquifer is estimated at 500,000 acre-feet. Available climate, crop acreage, irrigation water use, and groundwater decline data from Sunflower County, MS are used to evaluate the climate-groundwater interactions in the Mississippi Delta region. This research produced a model that simulates the effects of climatic variability, crop acreage changes, and specific irrigation methods on consequent variations in the water volume in the aquifer. Climatic variability is accounted for in the model by predicative equations that relate annual measured plant water use (irrigation) to growing season precipitation amounts. This derived relationship allows the application of a long-term climatological record to simulate the cumulative impact of climate on groundwater used for irrigation.
