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Soil Moisture Dynamics And Plant Transpiration Under Contrasting Annual-Perennial Cover Types, Matt Helmers, Heidi Asbjornsen, Amy L. Kaleita 2017 Iowa State University

Soil Moisture Dynamics And Plant Transpiration Under Contrasting Annual-Perennial Cover Types, Matt Helmers, Heidi Asbjornsen, Amy L. Kaleita

Matthew J. Helmers

Soil moisture dynamics are influenced by land cover, thus different land covers would be expected to have different soil moisture behavior. This project tested various land covers and crops to see whether and how moisture was retained or depleted.


Teaching Farmland Drainage Design Features To Contractors And Service Providers, Kapil Arora, Matthew J. Helmers, L. Gregory Brenneman 2017 Iowa State University

Teaching Farmland Drainage Design Features To Contractors And Service Providers, Kapil Arora, Matthew J. Helmers, L. Gregory Brenneman

Matthew J. Helmers

Farmland drainage is an integral part of Iowa’s landscape and plays a critical role in its bio-economy. Production capacities of Iowa soils can only be optimized with well-designed and properly operating subsurface drainage systems. Features needing attention when designing and installing a new system or retrofitting an old one include drainage intensity (spacing and depth), drainage capacity (size and grade), water quality and quantity management (controlled drainage, shallow drainage, etc.), and the economics of payback. Iowa State University Extension & Outreach initiated the Iowa Drainage School in 2007 to educate stakeholders on subsurface drainage concepts customized to the upper Midwestern ...


Impact Of Drainage Water Management On Crop Yield, Drainage Volume, And Nitrate Loss, Linda Schott, Matt Helmers, Carl Pederson, Greg Brenneman, Myron Rees 2017 Iowa State University

Impact Of Drainage Water Management On Crop Yield, Drainage Volume, And Nitrate Loss, Linda Schott, Matt Helmers, Carl Pederson, Greg Brenneman, Myron Rees

Matthew J. Helmers

The objectives of this study were to determine the impact of shallow, controlled, conventional, and no drainage on crop yields, subsurface drainage volumes, and nitrate loss through subsurface drainage. This research investigates whether drainage water management reduces nitrate loadings to downstream surface waters.


Impact Of Liquid Swine Manure Application And Cover Crops On Nitrate In Subsurface Drainage Water, Carl Pederson, Matt Helmers, Michelle Soupir, Ramesh Kanwar, Antonio Mallarino 2017 Iowa State University

Impact Of Liquid Swine Manure Application And Cover Crops On Nitrate In Subsurface Drainage Water, Carl Pederson, Matt Helmers, Michelle Soupir, Ramesh Kanwar, Antonio Mallarino

Matthew J. Helmers

The primary objective of this project is to determine the impact of appropriate rates of swine manure applications to corn and soybeans based on nitrogen requirements of crops, and the potential of nitrate leaching to groundwater. Another purpose of this longterm experimental study is to develop and recommend appropriate manure and nutrient management practices to producers to minimize the water contamination potential and enhance the use of swine manure as an organic fertilizer. A third component of this study is to determine the potential effects of rye as a cover crop to reduce nitrate loss to shallow ground water.


Investigation Of Bacteria Transport And Resistance Mechanisms And Implications For Water Quality From Confinement Swine And Beef Grazing Production Systems In Iowa, Michelle Soupir, Matt Helmers, Michael L. Thompson, Laura R. Jarboe, Antonio P. Mallarino, Ramesh S. Kanwar 2017 Iowa State University

Investigation Of Bacteria Transport And Resistance Mechanisms And Implications For Water Quality From Confinement Swine And Beef Grazing Production Systems In Iowa, Michelle Soupir, Matt Helmers, Michael L. Thompson, Laura R. Jarboe, Antonio P. Mallarino, Ramesh S. Kanwar

Matthew J. Helmers

This multi-scale, multi-year study was conducted to begin answering questions related to the fate and transport of nutrients and bacteria from land receiving manure application. Experiments were conducted on tile water drainage at an ISU Research Farm in northeast Iowa.


Impact Of Nitrogen Application Timing And Source On Nitrate Leaching And Crop Yield, Ainis Lagzdins, Carl Pederson, Linda Schott, Emily Waring, Matthew Helmers 2017 Latvia University of Agriculture

Impact Of Nitrogen Application Timing And Source On Nitrate Leaching And Crop Yield, Ainis Lagzdins, Carl Pederson, Linda Schott, Emily Waring, Matthew Helmers

Matthew J. Helmers

Nutrient reduction strategies were developed and are being implemented across Midwest to reduce nutrient loading to local and downstream waters. State-wide strategies developed in response to the 2008 Gulf Hypoxia Action Plan. In order to reduce nitrate-nitrogen leaching through subsurface drainage systems, the Iowa Nutrient Reduction Strategy suggests implementation of in-field management practices including nitrogen application timing, source of nitrogen fertilizer, nitrogen application rate, and use of a nitrification inhibitor. The objectives of this study were to document the effects of nitrogen application timing (fall versus spring) and source (aqua-ammonia, urea, and poly-coated urea) on nitrate-nitrogen leaching and crop yield ...


Nation’S Premier Site For Water Quality Drives Progress, Matt J. Helmers 2017 Iowa State University

Nation’S Premier Site For Water Quality Drives Progress, Matt J. Helmers

Matthew J. Helmers

A farm just outside the north-central Iowa town is home to Iowa State University’s Agriculture Drainage Research and Demonstration Site, a facility that has been working to further Iowa State University’s water conservation efforts since 1990. The site was born out of the Iowa Groundwater Protection Act, a piece of legislation passed in 1987 that generated funds from fees on pesticide manufacturing registrations, pesticide dealer licensing and a tax on fertilizer sales. A portion of the funds were used to create the 11-acre research site, with Iowa State University partnering with the Iowa Department of Agriculture and Land ...


Assessing The Periodic Groundwater Flow Conditions Of A Perched Aquifer System In The Daniel Boone National Forest, Ethan Sweet 2017 Murray State University

Assessing The Periodic Groundwater Flow Conditions Of A Perched Aquifer System In The Daniel Boone National Forest, Ethan Sweet

Posters-at-the-Capitol

Assessing the Periodic Groundwater Flow Conditions of a Perched Aquifer System in the Daniel Boone National Forest

Ethan Sweet and Jonathan Malzone

Eastern Kentucky University, Department of Geosciences

Natural ephemeral wetlands situated among the ridge-tops in the Daniel Boone National Forest serve as reservoirs that recharge a shallow groundwater system. Unique interactions between surface and groundwater in these isolated systems provide substantial support for the native ecosystem, serving as a breeding ground for amphibians and as source water for vegetation—especially in periods of drought. Currently it is not understood how groundwater could provide regional biodiversity, a drought buffer, or ...


Strategies For Nitrate Reduction: The Cedar River Case Study, Matthew J. Helmers, James L. Baker 2017 Iowa State University

Strategies For Nitrate Reduction: The Cedar River Case Study, Matthew J. Helmers, James L. Baker

Matthew J. Helmers

Streams in agricultural areas are vulnerable to nutrient contamination where subsurface tile drains and ditches quickly transport excess precipitation from field to stream such as in the Eastern Iowa Basins. Some of the streams in this region are the direct or indirect source for drinking water supplies. Nitrate-nitrogen (NO3-N) in these streams can exceed the EPA Maximum Contaminant Level (MCL) of 10 mg L-1. Nitrogen is also a major pollutant of estuarine and marine ecosystems. Oxygen depletion in these ecosystems, known as hypoxia, occurs when dissolved oxygen concentrations in shallow waters decrease below the level required for aquatic organisms to ...


Nitrate Loss In Subsurface Drainage As Affected By Nitrogen Application Rate And Timing Under A Cornsoybean Rotation System, Matthew J. Helmers, Reid D. Christianson, John Sawyer 2017 Iowa State University

Nitrate Loss In Subsurface Drainage As Affected By Nitrogen Application Rate And Timing Under A Cornsoybean Rotation System, Matthew J. Helmers, Reid D. Christianson, John Sawyer

Matthew J. Helmers

Subsurface agricultural drainage has allowed for enhanced crop production in many areas of the world including the upper Midwest, United States. However, the presence of nitrate-nitrogen (nitrate-N) in subsurface tile drainage water is a topic of intense scrutiny due to several water quality issues. Many studies have been conducted looking at ways to reduce nitrate-N in tile drainage (Baker et al., 1975; Baker and Johnson, 1981; Hanway and Laflen, 1974; Kanwar et al., 1988).With the growing concern for the health of the Gulf of Mexico (Mitsch et al., 2001; Rabalais et al., 1996) and local water quality concerns, there ...


Water Quality Benefits Of Perennial Filter Strips In Row-Cropped Watersheds, Matthew J. Helmers, Xiaobo Zhou, Heidi Asbjornsen, Randy Kolka 2017 Iowa State University

Water Quality Benefits Of Perennial Filter Strips In Row-Cropped Watersheds, Matthew J. Helmers, Xiaobo Zhou, Heidi Asbjornsen, Randy Kolka

Matthew J. Helmers

Nonpoint source pollution is an increasingly serious problem in agricultural landscapes, especially as growing populations intensify pressures on a fixed land area for food and energy, and climate change threatens production stability. Vegetative filter strips (VFS) have been demonstrated as a practical strategy in reducing soil loss and nutrient transport from agricultural land. While restoration of native grassland on agricultural landscapes would improve environment quality, however, this practice is not feasible across large regions where local communities depend on agriculture. One alternative strategy for erosion control and water quality improvement is the incorporation of relatively small amounts of vegetative filter ...


Best Management Practices: A Community-Based Approach To Construction And Installation, Nathanael J. La Breche 2017 Purdue University

Best Management Practices: A Community-Based Approach To Construction And Installation, Nathanael J. La Breche

Purdue Journal of Service-Learning and International Engagement

The Wabash River Enhancement Corporation (WREC) is a nonprofit organization dedicated to improving both the health of the Wabash River and the surrounding terrestrial areas. In an effort to improve water quality, their urban cost-share program focuses on supporting green projects within a critical region surrounding the Great Bend of the Wabash River. In this essay, a Purdue student describes his experience as leader of a six-member group who worked with WREC to locate a suitable site within this critical area and implement a green project. They selected the Lighthouse Baptist Church, located in Lafayette, Indiana, since it was experiencing ...


'Catch The King' Tide With Stormsense On Nov. 5th: How You Can Help Crowd-Source Tidal Flood Event Calibrations For Hampton Roads' Newest Water Level Sensors, Jon Derek Loftis, Harry Wang, David R. Forrest 2017 Virginia Institute of Marine Science

'Catch The King' Tide With Stormsense On Nov. 5th: How You Can Help Crowd-Source Tidal Flood Event Calibrations For Hampton Roads' Newest Water Level Sensors, Jon Derek Loftis, Harry Wang, David R. Forrest

Presentations

Dr. Derek Loftis presented his recent research related to installing new water level sensors (and some of the early event data the network has captured during Hurricanes Jose and Maria) in many Hampton Roads municipalities with the StormSense Smart Cities project. This presentation also introduces information related VIMS efforts with the CCRFR and local news media in the organization of the 'Catch the King' Tide crowd-sourcing data event using the Sea Level Rise App.


A Thirsty Third World: How Land Grabs Are Leaving Ethiopia In The Dust, Emily Ingebretsen 2017 NAACP Legal Defense and Education Fund, Inc

A Thirsty Third World: How Land Grabs Are Leaving Ethiopia In The Dust, Emily Ingebretsen

wH2O: The Journal of Gender and Water

No abstract provided.


Dalit Women And Water, Janice Lazarus 2017 University of Pennsylvania

Dalit Women And Water, Janice Lazarus

wH2O: The Journal of Gender and Water

The term Dalit means, “crushed” or “broken” and has come to represent those groups which have been traditionally considered to be outside the women in a hamlet in Mahabubnagar district of Andhra Pradesh (now Telangana), India, this paper highlights Dalit women’s experiences related to water use, collection and access that are often shaped by their caste and gender positions. The study is qualitative in nature and employs a phenomenological approach with interviews as the data-collection method. Water is scarce in this community and fetching water often takes place at privately owned wells where discrimination based on caste and gender ...


Assessment Of Water Provision And Associated Risks Among Children In Abeokuta Peri-Urban, Ogun State, Southwestern Nigeria: The Gender Implications, Adegbite A. Ayoade, Salako Sikiru, Okanlawon P.O 2017 Ogun State College of Health Ilese-Ijebu

Assessment Of Water Provision And Associated Risks Among Children In Abeokuta Peri-Urban, Ogun State, Southwestern Nigeria: The Gender Implications, Adegbite A. Ayoade, Salako Sikiru, Okanlawon P.O

wH2O: The Journal of Gender and Water

An assessment of water supply challenges and risks facing children in selected peri-urban areas of Abeokuta (Akole-Oke Ata, Obatonko, Adigbe) in Ogun, southwestern Nigeria, was carried out during the dry season, in the months of November 2013 to February 2014. Recognizing that the yield of drinking water sources and water supply from the government were drastically reduced during the dry season, in this study, project leaders aimed to determine children’s involvement in household water provision during the dry season in the peri-urban of Abeokuta Ogun State Southwestern Nigeria, and to further determine the gender distribution, risks and risk indicators ...


The Impacts Of Water Shortages On Women’S Time-Space Activities In The High Density Suburb Of Mabvuku In Harare, Liliosa Pahwaringira, Lillian Chaminuka, Kwaedza Muranda-Kaseke 2017 Zimbabwe Open University

The Impacts Of Water Shortages On Women’S Time-Space Activities In The High Density Suburb Of Mabvuku In Harare, Liliosa Pahwaringira, Lillian Chaminuka, Kwaedza Muranda-Kaseke

wH2O: The Journal of Gender and Water

The purpose of this study was to assess how water scarcity affects women’s time-space activity. Time-space activity refers to the lateral distance between locations. In this context time is taken when traveling to and fro collecting water. Space refers to the radius covered. The study was carried out in Mabvuku, a high-density suburb of Harare, Zimbabwe, following observations and reports of serious shortages of water in the area. A case study approach was employed for the study and respondents were selected using purposive and snowball sampling. Data was collected using questionnaires, structured interview guides, and observational surveys. The study ...


Gender Dynamics In Water Governance Institutions: The Case Of Gwanda’S Guyu-Chelesa Irrigation Scheme In Zimbabwe, Emelder M. Tagutanazvo, Vupenyu T. Dzingirai, Everisto Mapedza, Barbara Van Koppen 2017 IWMI-Pretoria

Gender Dynamics In Water Governance Institutions: The Case Of Gwanda’S Guyu-Chelesa Irrigation Scheme In Zimbabwe, Emelder M. Tagutanazvo, Vupenyu T. Dzingirai, Everisto Mapedza, Barbara Van Koppen

wH2O: The Journal of Gender and Water

The need to incorporate women in development interventions has widely been highlighted in development literature. Despite recent attempts to include women in such efforts, the FAO’s 2011 State of the Agriculture Report points out that gender imbalance is still a major concern. This study focuses on the Guyu-Chelesa irrigation scheme in Zimbabwe in an attempt to understand women’s involvement in water governance institutions that are set up around these schemes. At one level, women are well-represented in these institutions. Nonetheless, despite their representation in positions of high-level decision making, their actual decision-making power is limited. For this reason ...


Conceptualizing A Hybrid Framework To Help Improve Gender Outcomes In Water, Sanitation And Hygiene Programs In India, Sunetra Lala, Aidan A. Cronic, Malika Basu, Jyotsna Nirvana 2017 UNICEF Odisha Office, India

Conceptualizing A Hybrid Framework To Help Improve Gender Outcomes In Water, Sanitation And Hygiene Programs In India, Sunetra Lala, Aidan A. Cronic, Malika Basu, Jyotsna Nirvana

wH2O: The Journal of Gender and Water

Developing and managing water, sanitation, and hygiene (WASH) programs in a sustainable manner contributes to gender equity by improving men’s and women’s access to services and benefits. A gender-sensitive approach to ensure equity in WASH programs can achieve positive outcomes including participatory decision making, empowerment of women, and sustainable programs.

Gender analysis frameworks have a long history in development practice to guide strengthened gender outcomes, and opportunities exist to learn from such frameworks to support implementation of WASH programs in developing countries, including India. This paper reviews seven well-established gender analysis frameworks from the Indian WASH context vis-à-vis ...


The Theatre And The Latrine: Examining Women’S Health Narratives As A Means For Creating Sustainable Sanitation Infrastructure, Victoria Cano 2017 University of Pennsylvania

The Theatre And The Latrine: Examining Women’S Health Narratives As A Means For Creating Sustainable Sanitation Infrastructure, Victoria Cano

wH2O: The Journal of Gender and Water

In the summer of 2013, I traveled to Dhaka, Bangladesh to directly observe the relationship between gender advancement and national improvements in sanitation practices. My research and experiences in Bangladesh have led me to the conclusion that, while a great deal has been accomplished in terms of improved sanitation, further improvements cannot be made unless the critical importance of Bangladeshi women, including their sanitation needs and their pivotal position as role models of sanitary behavior, are placed at the forefront of Bangladesh’s, and the world’s, sanitation stratagem. I believe that one of the most effective tools to support ...


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