Agricultural and Resource Economics Commons^™

Minimizing Surface Run-Off, Improving Underground Water Recharging, And On-Site Rain Harvesting In The Kathmandu Valley, Ambika P. Adhikari, Keshav Bhattarai

Himalayan Research Papers Archive

Nepal's political institutions and administrative units were thoroughly restructured in 2015 with the promulgation of the new Constitution. Several rural areas were combined to meet the definition of urban threshold criteria to classify rural areas into urban categories. Accordingly, over 3,900 local political and administrative units were amalgamated into 753 units, of which, 293 units are classified as urban. Within these newly defined urban areas, many natural environments have been converted into impervious surfaces such as paved roads, sidewalks, and building roofs. These impervious surfaces have drastically increased the amount of surface run-offs-often termed as "urban floods"--under increasing precipitation caused …

Use Patterns And Influencing Factors Of Irrigation Best Management Practices In The Lower Mississippi River Basin, Merri E. Day

Graduate Theses and Dissertations

This study uses the 2016 Irrigation Survey from Arkansas, Louisiana, and Mississippi to document the use of irrigation best management practices (IBMPs), analyze use patterns, and use quantitative methods to determine factors that influence producers’ decisions regarding IBMPs. IBMPs included in the survey can be grouped as: field management practices (zero-grade leveling, precision-grade leveling, end blocking, warped surface, and deep tillage), water flow control practices (computerized pipe-hole selection, multiple-inlet irrigation, surge irrigation, alternate wetting and drying, cutback irrigation, flow meters, and pump timers), water recovery/storage practices (tail-water recovery system and on-farm storage reservoir), and advanced irrigation scheduling practices (soil moisture …

The Impact Of Saturated Thickness To Protect Farmers From Severe Drought In High Plains Aquifer, Olivier Tuyizere, Taro Mieno

UCARE: Research Products

The High Plains Aquifer comprises eight states of Nebraska, Oklahoma, Texas, New Mexico, Wyoming, Colorado, South Dakota with an area of 175,000 square miles. High Plains Aquifer (HPA) has been the primary source of water supply for irrigation in this region. Groundwater depletion varies across the region of the aquifer due to differences in surface water interaction with groundwater, water recharge, precipitation temperature and hydrological characteristics of the aquifer. With the uncertainty in the future of climate, we expect extreme climatic events such as drought. The drought is associated with dry and hot weather in which irrigation plays a vital …

Impact Of Saturated Thickness To Protect Farmers From Drought In High Plains Aquifer, Olivier Tuyizere, Taro Mieno

UCARE: Research Products

●The High Plains aquifer is the primary source of water supply for irrigating major crops in the region including corn and soybeans ●Climate change is expected to reduce groundwater availability in High Plains Aquifer and increase extreme climatic events such as droughts. ●Aquifer depletion leads to lower well yields, which in turn diminish the effectiveness of irrigation against drought.

●Estimate the effect of saturated thickness to protect irrigated corn and soybeans production against severe drought in the High Plains Aquifer. ●Calculate the impact of aquifer depletion on farmers’ ability to protect against severe droughts based on the regression results.

2004 - Salinas Valley Hydrologic Subareas, 4th Quarter Water Conditions

Monterey County Water Resources Agency Water Reports

This report covers the fourth quarter of Water Year 2003-2004 (WY2004), July through September 2004. It provides a brief overview of water conditions in the Salinas River Basin with discussion on precipitation, reservoir storage, and ground water trends.

2009 - Salinas Valley Hydrologic Subareas, 4th Quarter Water Conditions

Monterey County Water Resources Agency Water Reports

This report covers the fourth quarter of Water Year 2008-2009 (WY09), July through September 2009. It provides a brief overview of water conditions in the Salinas River Basin with discussion on precipitation, reservoir storage, and ground water trends.

2005 - Salinas Valley Hydrologic Subareas, 4th Quarter Water Conditions

Monterey County Water Resources Agency Water Reports

This report covers the fourth quarter of Water Year 2004-2005 (WY05), July 2005 through September 2005. It provides a brief overview of water conditions in the Salinas River Basin with discussion on precipitation, reservoir storage, and ground water trends.

2013 - Salinas Valley Hydrologic Subareas, 4th Quarter Water Conditions

Monterey County Water Resources Agency Water Reports

This report covers the fourth quarter of Water Year 2012-2013 (WY13), July through September 2013. It provides a brief overview of water conditions in the Salinas River Basin with discussion on precipitation, reservoir storage, and ground water trends.

2015 - Salinas Valley Hydrologic Subareas, 4th Quarter Water Conditions

Monterey County Water Resources Agency Water Reports

This report covers the fourth quarter of Water Year 2014-2015 (WY15), July through September 2015. It provides a brief overview of water conditions in the Salinas River Basin with discussion on precipitation, reservoir storage, and ground water trends.

2012 - Salinas Valley Hydrologic Subareas, 4th Quarter Water Conditions

Monterey County Water Resources Agency Water Reports

This report covers the fourth quarter of Water Year 2011-2012 (WY12), July through September 2012. It provides a brief overview of water conditions in the Salinas River Basin with discussion on precipitation, reservoir storage, and ground water trends.

2011 - Salinas Valley Hydrologic Subareas, 4th Quarter Water Conditions

Monterey County Water Resources Agency Water Reports

This report covers the fourth quarter of Water Year 2010-2011 (WY11), July through September 2011. It provides a brief overview of water conditions in the Salinas River Basin with discussion on precipitation, reservoir storage, and ground water trends.

2008 - Salinas Valley Hydrologic Subareas, 4th Quarter Water Conditions

Monterey County Water Resources Agency Water Reports

This report covers the fourth quarter of Water Year 2007-2008 (WY08), July through September 2008. It provides a brief overview of water conditions in the Salinas River Basin with discussion on precipitation, reservoir storage, and ground water trends.

2007 - Salinas Valley Hydrologic Subareas, 4th Quarter Water Conditions

Monterey County Water Resources Agency Water Reports

This report covers the fourth quarter of Water Year 2006-2007 (WY07), July through September 2007. It provides a brief overview of water conditions in the Salinas River Basin with discussion on precipitation, reservoir storage, and ground water trends.

2010 - Salinas Valley Hydrologic Subareas, 4th Quarter Water Conditions

Monterey County Water Resources Agency Water Reports

This report covers the fourth quarter of Water Year 2009-2010 (WY10), July through September 2010. It provides a brief overview of water conditions in the Salinas River Basin with discussion on precipitation, reservoir storage, and ground water trends.

2003 - Salinas Valley Hydrologic Subareas, 4th Quarter Water Conditions

Monterey County Water Resources Agency Water Reports

This report covers the fourth quarter of Water Year 2002-2003 (WY2003), July through September 2003. It provides a brief overview of water conditions in the Salinas Basin with discussion on precipitation, reservoir storage, and ground water trends.

2006 - Salinas Valley Hydrologic Subareas, 4th Quarter Water Conditions

Monterey County Water Resources Agency Water Reports

This report covers the fourth quarter of Water Year 2005-2006 (WY06), July through September 2006. It provides a brief overview of water conditions in the Salinas River Basin with discussion on precipitation, reservoir storage, and ground water trends.

2014 - Salinas Valley Hydrologic Subareas, 4th Quarter Water Conditions

Monterey County Water Resources Agency Water Reports

This report covers the fourth quarter of Water Year 2013-2014 (WY14), July through September 2014. It provides a brief overview of water conditions in the Salinas River Basin with discussion on precipitation, reservoir storage, and ground water trends.

2016 - Salinas Valley Hydrologic Subareas, 4th Quarter Water Conditions

Monterey County Water Resources Agency Water Reports

This report covers the fourth quarter of Water Year 2015-2016 (WY16), July through September 2016. It provides a brief overview of water conditions in the Salinas River Basin with discussion on precipitation, reservoir storage, and ground water trends.

2017 - Salinas Valley Hydrologic Subareas, 4th Quarter Water Conditions

Monterey County Water Resources Agency Water Reports

This report covers the fourth quarter of Water Year 2016-2017 (WY17), July through September 2017. It provides a brief overview of water conditions in the Salinas River Basin with discussion on precipitation, reservoir storage, and ground water trends.

2018 - Salinas Valley Hydrologic Subareas, 4th Quarter Water Conditions

Monterey County Water Resources Agency Water Reports

This report covers the fourth quarter of Water Year 2017-2018 (WY18), July through September 2018. It provides a brief overview of water conditions in the Salinas River Basin with discussion on precipitation, reservoir storage, and ground water trends.

What Is The Use Value Of Irrigation Water From The High Plains Aquifer?, Federico García Suárez, Lilyan E. Fulginiti, Richard K. Perrin

Department of Agricultural Economics: Faculty Publications

This study provides an estimate of the gross value of irrigation water from the U.S. High Plains

Aquifer. We estimate a yield function for aggregated crop biomass production, based on countylevel

observations for 1960–2007. This study found that irrigation increases total biomass yield in this

region by an average of 51%. We estimate the average gross annual value of irrigation as of 2007 to

be $196 per acre, for a total of about $3 billion across the aquifer. We also estimate that on average

across the aquifer, exposure to 24 hours of temperatures above 33C (one degree day) reduces biomass …

Estimating Adaptation To Climate Change In Groundwater Irrigation, James Keeler

Department of Agricultural Economics: Dissertations, Theses, and Student Research

Understanding the adaptive capacity of irrigated agriculture, including to what extent producers adjust irrigation choices along the intensive and extensive margins, is vital to the development of accurate and holistic estimates of the impacts of climate change on agricultural production and the sustainability of water-related ecosystem services. This thesis proposes and implements a natural experiment using statistical matching methods to estimate how producers adjust groundwater extraction, irrigated crop acreage, and irrigation technology in response to long-term changes in precipitation and evapotranspiration. Results from groundwater irrigated fields in Kansas suggest that intensive and extensive margin water use adaptations are generally limited …

Using Regression Analysis To Determine Land Cover Impacts On Groundwater Levels In The High Plains, Dylan T. Riley

Department of Agricultural Economics: Dissertations, Theses, and Student Research

Many parts of the High Plains region are facing declining aquifer levels, which threatens the long-term viability of irrigated agriculture. Furthermore, some areas of the High Plains region, like the Republican River Basin in Nebraska, need to keep groundwater levels high enough in the short-term to ensure that hydrologically connected rivers have enough streamflow to fulfill surface water obligations, such as Nebraska's interstate river compact with Colorado and Kansas. To better manage groundwater, it is important to understand the unintended effects of policies that may not be aimed at groundwater conservation, such as the USDA- Conservation Reserve Program (USDA-CRP). The …

Econometric Estimation Of Groundwater Depth Change For The High Plains Aquifer, Jonathan R. Sims

Department of Agricultural Economics: Dissertations, Theses, and Student Research

This article presents a new method for estimating changes in depth to groundwater at a yearly, county level and incorporates these estimates as the dependent variable of econometric models for the High Plains aquifer. The High Plains (Ogallala) aquifer underlies eight states in the central United States and is the primary source of irrigation water for this large food producing region. The stock of groundwater is a finite, non-renewable resource with minimal recharge in most areas. Many fields of study, including hydrology and agricultural economics, are interested in depth to groundwater changes because they serve as a proxy for estimating …

Review Of Land Capability Assessment For The Swan Valley, Peter Tille, Angela Stuart-Street

Resource management technical reports

Land capability review for the Swan Valley.

The land capability review of the Swan Valley examined and updated previous soil and capability studies done in the area, which are still considered highly relevant for the planning requirements of the Swan Valley. As a result we have updated information on the potential for irrigated agriculture in the Swan Valley which will guide decision-making in the future.

This review uses a modified version of a new approach to presenting information for land use planning, developed by DAFWA in the Mid West region.

The main findings of the review include:

• The alluvial terraces …

Irrigation Demand In A Changing Climate: Using Disaggregate Data To Predict Future Groundwater Use, Calvin R. Shaneyfelt

Department of Agricultural Economics: Dissertations, Theses, and Student Research

The paper estimates an irrigation water demand function using disaggregate climate and well data over a 33 year time period. Aggregating climate information over long periods, like a year, causes a loss of detail on temporal climatic variation, while aggregating climate information over space causes a loss of detail on spatial variation. This analysis uses disaggregate climate variation at a temporospatial level to determine the effects of climate on groundwater use. Results show that increased heat, measured in cooling degree-days, correlates with increased water use, while increased precipitation correlates with decreased water use. However, the effects are generally magnified for …

Growth In Colorado And The West: Trends And Issues [Outline], James N. Corbridge Jr.

Water and Growth in the West (Summer Conference, June 7-9)

4 pages.

Contains references.

The Water Development-Growth Relationship: Case Studies, Edward F. Harvey

Water and Growth in the West (Summer Conference, June 7-9)

7 pages.

Metropolitan Water Supply Investigation Final Report: Report To The Colorado Water Conservation Board, January 1999, Hydrosphere Resource Consultants, Inc. Et Al.

Water and Growth in the West (Summer Conference, June 7-9)

207 pages (includes color illustrations and maps).

Contains 5 pages of references.

Potential For Cost-Share Policies To Improve Groundwater Quality Without Reducing Farm Profits, Thomas Dobbs, John Bischoff

Economics Staff Paper Series (1969 - 2017)

The Federal Agricultural Improvement and Reform Act (FAIR) of reinforced the Federal government's commitment to environmental aspects of farm policy that received major attention in 1985 legislation and reinforcement in 1990. All three pieces of legislation placed emphasis on incentive and cost-share policies to reduce adverse soil and water effects of farming practices. A major initiative under FAIR is the Environmental Quality Incentives Program (EQIP), for which $1.3 billion is authorized over 7 years to provide cost-share or incentive payment contracts with crop and livestock producers for environmental and conservation improvements (Young and Shields, 1996). In part, this program is …