Download or read book Evaluation of Field scale Soil Organic Carbon and Watershed scale Bioenergy Crop Production in Mississippi written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: To date only a limited number of studies have been done at the field level to observe the effects of agricultural management practices on carbon sequestration, water quality, and bioenergy crop yield in Mississippi. Therefore, the goals of this study were to monitor soil organic carbon (SOC) levels at the field scale and perform a comprehensive analysis of the potential environmental impacts at the watershed scale using the Soil and Water Assessment Tool (SWAT) in two watersheds located in Mississippi. It was found that SOC levels generally are affected by depth, land use, and time. The SWAT models showed good performance overall and predicted that perennial grass production in the Town Creek watershed would render the most feedstock with the least environmental impact. The results of this study were consistent with the available literature, but a longer study period is recommended.
Download or read book Assessment of Nutrient Sources at Watershed Scale in Agro ecosystem of Mississippi written by Avay Risal and published by . This book was released on 2020 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excessive nutrient concentrations from a different point and non-point sources are the main cause of water impairment in the United States. Appropriate management practices, according to the source and quantity of pollutions, need to be implemented to control excessive nutrient influx in the water body. Various types of hydrological and water quality models with diverse function, capability and degree of complexity are employed to quantify watershed hydrologic processes and nutrient pollution. Multiple models can be applied to a watershed but the suitable model must be selected based on watershed type and simulation need. Two watershed-scale models, Soil and Water Assessment Tool (SWAT) and Hydrologic Simulation Program-Fortran (HSPF) were chosen for this study to simulate runoff, sediment yield, and nutrient load from the Big Sunflower River Watershed (BSRW) of Mississippi. The objectives of this study are to access the nutrient sources within the watershed, determine the appropriate model to quantify them, develop and evaluate model considering spatial and temporal variations in input data, and evaluate the effectiveness of different Best Management Practices (BMPs) on surface runoff, sediment yield and nutrient load at watershed scale. This study has identified a potential source of nutrients in BSRW and provided a suitable BMP for its management. Similarly, the study found both SWAT and HSPF were efficient in the simulation of streamflow, sediment yield and nutrient load, where SWAT was more efficient during simulation streamflow and sediment yield. Likewise, the study established that both water-quantity and water-quality are sensitive to the change in LULC data layers and thus, seasonal LULC data applied to SWAT will better explain variation in hydrology and water quality as compared to the annual cropland data layer. Moreover, the study showed that well managed vegetative filter strip was very efficient in reducing sediment yield, TN, and TP at both field and watershed scale among different BMPs evaluated at field and watershed scale. This study will be beneficial in developing efficient nutrient management strategy at field and watershed scale, selecting appropriate model and input according to the need and type of watershed, and providing further research opportunities to the scientific community.
Download or read book The Potential of Producing Bioenergy Crops on Conservation Reserve Program Land in Missouri Iowa Nebraska and Kansas MINK Region to Mitigate Carbon Dioxide Emissions written by Loise N. Wambuguh and published by . This book was released on 2010 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concerns about global warming and climate change have generated increasing interest in development of bioenergy crops as a potential source of low-carbon energy. The goal of this research was to quantify environmental and economic effects of using the U.S. CRP land to produce large-scale bioenergy crops. The APEX model was used to evaluate the potential of switchgrass and hybrid poplar production to provide biomass feedstock, sequester soil carbon, and simultaneously provide other environmental co-benefits including improvement of soil and water quality in the MINK region. The environmental results indicate that the level of biomass yields and change in soil organic carbon differ with type of bioenergy crop, soil type, climatic conditions, and cultural management. Converting CRP land into bioenergy crop production and adopting conservation management practices significantly reduced sediment, nitrogen, and phosphorus loading into water bodies relative to traditional food crop production under conventional and conservation tillage practices. Results on economic effects of reverting CRP land into traditional crop production show a decline in prices of major U.S. commodities and federal government saving of nearly $ 1.7 billion annually on CRP rental payments. Putting some cropland currently under tradition crop production to produce conservation buffers has insignificant impact on commodity prices. Quantified information on environmental and economic effects of producing large-scale bioenergy crops assist policymakers develop sustainable and balance of energy-agriculture-environmental policies.
Download or read book Information Bulletin written by Mississippi Agricultural and Forestry Experiment Station and published by . This book was released on 2001 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Interpretive Evaluation of Soils in the Yazoo Mississippi Delta Area for Crop Production written by Joe Verl Pettiet and published by . This book was released on 1974 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioenergy Crop Production s Impact on Water Quality in the Mississippi River Basin Using the Benefit Transfer Approach written by William Tillman White and published by . This book was released on 2021 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biofuel production-driven land-use change in agricultural land can have impacts on ecosystem services. Since there is no planned mandate after the Renewable Fuel Standard, there are questions about what implications will future land-use changes have on water quality and how do water quality changes, resulting from potential bioenergy scenarios, affect changes in people's well-being? To answer these questions, I will estimate the value of the predicted changes in water quality under biofuel policy scenarios in counties inside the Mississippi River Basin. From this study, I found that as the percent of land-use changes increase across each county, water quality decreased. I also found that for every unit increase for the change in water quality index, the percentage of individuals' willingness to pay for a change in water quality would increase. The predicted willingness to pay for a change in water quality for a given household varied from -$72 to $143.
Download or read book Normal Yields and Production Practices by Soil Mapping Units Delta Area of Mississippi written by Mississippi Agricultural Experiment Station and published by . This book was released on 1961 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Normal Yields and Production Practices by Soil Types Mississippi Black Belt Area written by Mississippi Agricultural Experiment Station and published by . This book was released on 1966 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forages Volume 2 written by Kenneth J. Moore and published by John Wiley & Sons. This book was released on 2020-06-03 with total page 963 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forages: The Science of Grassland Agriculture, 7th Edition, Volume II will extensively evaluate the current knowledge and information on forage agriculture. Chapters written by leading researchers and authorities in grassland agriculture are aggregated under section themes, each one representing a major topic within grassland science and agriculture. This 7th edition will include two new additional chapters covering all aspects of forage physiology in three separate chapters, instead of one in previous editions. Chapters will be updated throughout to include new information that has developed since the last edition. This new edition of the classic reference serves as a comprehensive supplement to An Introduction to Grassland Agriculture, Volume I.
Download or read book Normal Yields and Production Practices by Soil Types Mississippi Brown Loam Area written by Mississippi Agricultural Experiment Station and published by . This book was released on 1965 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agronomic Suitability of Bioenergy Crops in Mississippi written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In Mississippi, some questions need to be answered about bioenergy crops: how much suitable land is available? How much material can that land produce? Which production systems work best in which scenarios? What levels of inputs will be required for productivity and longterm sustainability? How will the crops reach the market? What kinds of infrastructure will be necessary to make that happen? This publication helps answer these questions: Ã3Â3Ã2Â3Ã3Â2Ã2Â3Ã3Â3Ã2Â2Ã3Â2Ã2Â3Ã3Â3Ã2Â3Ã3Â2Ã2Â2Ã3Â3Ã2Â2Ã3Â2Ã2ÂØÃ3Â3Ã2Â3Ã3Â2Ã2Â3Ã3Â3Ã2Â2Ã3Â2Ã2Â2Ã3Â3Ã2Â3Ã3Â2Ã2Â2Ã3Â3Ã2Â2Ã3Â2Ã2Â0Ã3Â3Ã2Â3Ã3Â2Ã2Â3Ã3Â3Ã2Â2Ã3Â2Ã2Â2Ã3Â3Ã2Â3Ã3Â2Ã2Â2Ã3Â3Ã2Â2Ã3Â2Ã2ÂØ Which areas in the state are best for bioenergy crop production? Ã3Â3Ã2Â3Ã3Â2Ã2Â3Ã3Â3Ã2Â2Ã3Â2Ã2Â3Ã3Â3Ã2Â3Ã3Â2Ã2Â2Ã3Â3Ã2Â2Ã3Â2Ã2ÂØÃ3Â3Ã2Â3Ã3Â2Ã2Â3Ã3Â3Ã2Â2Ã3Â2Ã2Â2Ã3Â3Ã2Â3Ã3Â2Ã2Â2Ã3Â3Ã2Â2Ã3Â2Ã2Â0Ã3Â3Ã2Â3Ã3Â2Ã2Â3Ã3Â3Ã2Â2Ã3Â2Ã2Â2Ã3Â3Ã2Â3Ã3Â2Ã2Â2Ã3Â3Ã2Â2Ã3Â2Ã2ÂØ How much could these areas produce sustainably? Ã3Â3Ã2Â3Ã3Â2Ã2Â3Ã3Â3Ã2Â2Ã3Â2Ã2Â3Ã3Â3Ã2Â3Ã3Â2Ã2Â2Ã3Â3Ã2Â2Ã3Â2Ã2ÂØÃ3Â3Ã2Â3Ã3Â2Ã2Â3Ã3Â3Ã2Â2Ã3Â2Ã2Â2Ã3Â3Ã2Â3Ã3Â2Ã2Â2Ã3Â3Ã2Â2Ã3Â2Ã2Â0Ã3Â3Ã2Â3Ã3Â2Ã2Â3Ã3Â3Ã2Â2Ã3Â2Ã2Â2Ã3Â3Ã2Â3Ã3Â2Ã2Â2Ã3Â3Ã2Â2Ã3Â2Ã2ÂØ How can bioenergy crops impact carbon sequestration and carbon credits? Ã3Â3Ã2Â3Ã3Â2Ã2Â3Ã3Â3Ã2Â2Ã3Â2Ã2Â3Ã3Â3Ã2Â3Ã3Â2Ã2Â2Ã3Â3Ã2Â2Ã3Â2Ã2ÂØÃ3Â3Ã2Â3Ã3Â2Ã2Â3Ã3Â3Ã2Â2Ã3Â2Ã2Â2Ã3Â3Ã2Â3Ã3Â2Ã2Â2Ã3Â3Ã2Â2Ã3Â2Ã2Â0Ã3Â3Ã2Â3Ã3Â2Ã2Â3Ã3Â3Ã2Â2Ã3Â2Ã2Â2Ã3Â3Ã2Â3Ã3Â2Ã2Â2Ã3Â3Ã2Â2Ã3Â2Ã2ÂØ How will these crops affect fertilizer use and water quality? Ã3Â3Ã2Â3Ã3Â2Ã2Â3Ã3Â3Ã2Â2Ã3Â2Ã2Â3Ã3Â3Ã2Â3Ã3Â2Ã2Â2Ã3Â3Ã2Â2Ã3Â2Ã2ÂØÃ3Â3Ã2Â3Ã3Â2Ã2Â3Ã3Â3Ã2Â2Ã3Â2Ã2Â2Ã3Â3Ã2Â3Ã3Â2Ã2Â2Ã3Â3Ã2Â2Ã3Â2Ã2Â0Ã3Â3Ã2Â3Ã3Â2Ã2Â3Ã3Â3Ã2Â2Ã3Â2Ã2Â2Ã3Â3Ã2Â3Ã3Â2Ã2Â2Ã3Â3Ã2Â2Ã3Â2Ã2ÂØ What kind of water management is needed to maintain a productive crop? The answers to these questions will help supporting institutions across the state to improve land assessment and agronomic management practices for biomass production. In the last decade, energy supply has become a worldwide problem. Bioenergy crops could supply energy in the future. Bioenergy crops are plants, usually perennial grasses and trees, that produce a lot of biomass that can be converted into energy. Bioenergy crops can be grown for two energy markets: power generation, such as heat and electricity, or liquid fuel, such as cellulosic ethanol. These resources could reduce petroleum dependency and greenhouse gas production. Woody plants and herbaceous warm-season grasses, such as switchgrass, giant miscanthus, energy cane, and high yielding sorghums, could be major sources of biomass in Mississippi.
Download or read book Economic and Environmental Modeling of an Agricultural Watershed in the Mississippi Delta written by Rodney Eugene Wright and published by . This book was released on 2015 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soils of Mississippi written by Mississippi Agricultural Experiment Station and published by . This book was released on 1910 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bio energy Feedstock Yields and Their Water Quality Benefits in Mississippi written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Cellulosic and agricultural bio-energy crops can, under careful management, be harvested as feedstock for bio-fuels production and provide environmental benefits. However, it is required to quantify their relative advantages in feedstock production and water quality. The primary objective of this research was to evaluate potential feedstock yield and water quality benefit scenarios of bioenergy crops: Miscanthus (Miscanthus-giganteus), Switchgrass (Panicum virgatum), Johnsongrass (Sorghum halepense), Alfalfa (Medicago sativa L.), Soybean {Glycine max (L.) Merr.}, and Corn (Lea mays) in the Upper Pearl River watershed (UPRW), Mississippi using a Soil and Water Assessment Tool (SWAT). The SWAT model was calibrated (January 1981 to December 1994) and validated (January 1995 to September 2008) using monthly measured stream flow data. The calibrated and validated model determined good to very good performance for stream flow prediction (R2 and E from 0.60 to 0.86). The RMSE values (from 14 m3 s-1 to 37 m3 s-1) were estimated at similar levels of errors during model calibration and validation. The long-term average annual potential feedstock yield as an alternative energy source was determined the greatest when growing Miscanthus grass (373,849 Mg) as followed by Alfalfa (206,077 Mg), Switchgrass (132,077 Mg), Johnsongrass (47,576 Mg), Soybean (37,814 Mg), and Corn (22,069 Mg) in the pastureland and cropland of the watershed. Model results determined that average annual sediment yield from the Miscanthus grass scenario determined the least (1.16 Mg/ha) and corn scenario the greatest (12.04 Mg/ha). The SWAT model simulated results suggested that growing Miscanthus grass in the UPRW would have the greatest potential feedstock yield and water quality benefits.
Download or read book Soils of Mississippi written by Mississippi Agricultural Experiment Station and published by . This book was released on 1913 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biofuels for Road Transport written by Lucas Reijnders and published by Springer Science & Business Media. This book was released on 2008-12-19 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: “Biofuels for Road Transport: A Seed to Wheel Perspective” provides a review of the history, the current status and perspectives for biofuels used in road transport, across the full ‘seed-to-wheel’ life cycle of these fuels. Successive chapters cover the history of biofuels; the first- and second-generation liquid fuels and biofuels for powering electric vehicles; fossil fuel replacement, land requirement, greenhouse gas balances and environmental burdens of ethanol, esters derived from fatty acids (‘biodiesel’), Fischer-Tropsch diesel and HTU diesel; competing technologies (fossil fuels, increases in energy-efficiency and photovoltaic power) and how they compare to biofuels; and the perspectives for biofuels. Cost, availability, technological development, competition with biomass for food and for soil organic carbon and environmental perspectives are also discussed.
Download or read book Index Medicus written by and published by . This book was released on 2002 with total page 1404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
