Download or read book Effects of Irrigation Drought and Ground water Withdrawals on Ground water Levels in the Southern Lihue Basin Kauai Hawaii written by Scot K. Izuka and published by . This book was released on 2006 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Irrigation and Rainfall Reduction on Ground water Recharge in the Lihue Basin Kauai Hawaii written by Scot K. Izuka and published by . This book was released on 2005 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Areas Contributing Recharge to Wells in the Tafuna Leone Plain Tutuila American Samoa written by Scot K. Izuka and published by . This book was released on 2007 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drought Appraisal written by Drought Study Group and published by . This book was released on 1977 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Potential Impacts of Irrigation Groundwater Withdrawal on Water Resources in the Scippo Creek Scioto River Watershed Ohio written by Kpoti M. Gunn and published by . This book was released on 2015 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Lower Scioto Cataloguing Unit (LSCU) (OH) is experiencing an increase in irrigated land area. Information on potential impacts of irrigation groundwater withdrawals expansion is needed to assist in the management of a sustainable irrigated land area expansion. It is essential that the evaluation accounts for potential changes in crop irrigation water requirements due to anticipated climate change to insure that the results of the study reflect the aspects of crop irrigation in the short and long term. The study used the Scippo Creek-Scioto River Watershed (SCSRW) (OH) as a case study, and focused on the two most important crops grown in the area of study, which were corn and soybeans. In a preliminary study, a hybrid model that coupled the multimodel ensemble method (Kharin and Zwiers, 2002, Christensen and Lettenmaier, 2007) to a Monte-Carlo simulation was developed to predict future seasonal gross irrigation water requirements. The hybrid model was tested for the years 1969 to 1999 and used to predict seasonal irrigation water requirements for corn for the year 2015 to 2099. A groundwater flow model was developed for the study area using MODFLOW and used to investigate the potential groundwater level decline and streamflow depletion. Mean drawdowns in the order of 0.05 m to 6.26 m occurred between 2015 and 2099 in response to the simulation of various withdrawal scenarios. A depletion model developed using the simulation results indicated that mean drawdowns in the aquifer system could reach 6 m within 73 years in the worst case scenario.
Download or read book Long term Effects of Irrigation with Imported Water on Water Levels and Water Quality written by Brian W. Drost and published by . This book was released on 1993 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Can Irrigated Agriculture Survive the Groundwater Crisis written by Joseph B. Summers and published by . This book was released on 1991 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ground water Mining in the United States written by Gordon Sloggett and published by . This book was released on 1986 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Ground-water levels are declining from 6 inches to over 5 feet annually beneath 14 million acres of irrigated land in 11 States irrigated mainly by ground water. Pumping costs are rising, and well yields are declining, causing farmers to adjust their irrigation practices. Farmers are adopting new irrigation technologies to improve irrigation efficiency and are changing to crops with lower water requirements in some areas. However, techniques for conserving ground water may not extend the life of aquifers. State and local governments have passed laws severely restricting further irrigation development in about 45 percent of the irrigated area affected by ground-water mining.
Download or read book Sustaining surface and groundwater resources proceedings of the International Workshop on Conjunctive Water Management for Sustainable Irrigated Agriculture in South Asia Lahore Pakistan April 16 17 2002 written by Jehangir, W. A and published by IWMI. This book was released on 2002-04-16 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: Institutional development / Farm income / Water scarcity / GIS / Remote sensing / Salinity control / Pumping / Rain / Water quality / Supplementary irrigation / Environmental sustainability / Sustainable agriculture / Water table / Water balance / Water requirements / Crop production / Models / Groundwater / Surface water / Conjunctive use / Water resource management
Download or read book Guidance on realizing real water savings with crop water productivity interventions written by Van Opstal, J., Droogers, P., Kaune, A., Steduto, P., Perry, C. and published by Food & Agriculture Org.. This book was released on 2021-03-18 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical document contains clear and practical guidelines on how to implement real water savings in agriculture through interventions for enhancing crop water productivity. A distinction is made between real water savings and “apparent” water savings. Apparent water savings record reductions in water withdrawals but do not account for changes in water consumption. Real water savings record reductions in water consumption and non-recoverable return flows (runoff or percolation). This guidance document emphasizes the paradox of water savings at field and basin scales, which usually do not translate into increased water availability for other users, as is commonly believed.
Download or read book Agricultural Irrigation and Water Supply written by Rajinder Singh Bajwa and published by . This book was released on 1987 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report includes charts and tables on the climatic and physiographic influence on irrigation development; farm data comparing selected characteristics of irrigated and nonirrigated farms; and data on water application systems, sources of water, pump energy expenses by energy type, values of irrigated and nonirrigated land, and cash rents.
Download or read book Estimated Groundwater Withdrawals from Principal Aquifers in the United States 2015 written by John K. Lovelace and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "This report summarizes estimated fresh and saline groundwater withdrawals during 2015 from principal aquifers in the United States for various categories of use, which include public supply, self-supplied domestic, industrial, mining, thermoelectric power, irrigation, livestock, and aquaculture. Saline withdrawals from principal aquifers are estimated for public-supply, industrial, thermoelectric-power, and mining uses in each State. Estimated withdrawals from 66 principal aquifers or aquifer systems are tabulated by major lithologic group, State, and category of use. Estimated withdrawals from "other" aquifers that are not part of a principal aquifer also are tabulated. Withdrawals from 10 selected principal aquifers that together accounted for more than 72 percent of the groundwater withdrawals in the United States in 2015 also are discussed. In addition, estimated fresh groundwater withdrawals from principal aquifers for public supply, industry, and irrigation during 2000 and 2015 are compared and discussed"--
Download or read book Irrigation Water Use and Management written by United States. Interagency Task Force on Irrigation Efficiencies. Technical Work Group and published by . This book was released on 1978 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Irrigation Hydrology and Management written by Saeid Eslamian and published by CRC Press. This book was released on 2023-05-31 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ever-increasing population growth has caused a proportional increased demand for water, and existing water sources are depleting day by day. Moreover, with the impact of climate change, the rates of rainfall in many regions have experienced a higher degree of variability. In many cities, government utilities have been struggling to maintain sufficient water for the residents and other users. The Handbook of Irrigation Hydrology and Management: Irrigation Case Studies examines and analyzes irrigated ecosystems in which water storage, applications, or drainage volumes are artificially controlled in the landscape and the spatial domain of processes varies from micrometers to tens of kilometers, while the temporal domain spans from seconds to centuries. The continuum science of irrigation hydrology includes the surface, subsurface (unsaturated and groundwater systems), atmospheric, and plant subsystems. Further, the book includes practical case studies from around the world, including locations such as Africa, Australia, China, India, the Middle East, the United States, and more. Features: Offers water-saving strategies to increase the judicious use of scarce water resources Presents strategies to maximize agricultural yield per unit of water used for different regions Compares irrigation methods to offset changing weather patterns and impacts of climate change
Download or read book Modernizing Irrigation Operations written by D. Renault and published by IWMI. This book was released on 1999 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Background ans constraints in water service; Case study of Kirindi Oya irrigation settlement Project Sri Lanka.
Download or read book Assessing Irrigation Performance with Comparative Indicators written by W. H. Kloezen and published by IWMI. This book was released on 1998 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes and evaluates the application of IWMI's minimum set of performance indicators to the Alto Rio Lerma Irrigation District, and compares this with the application of a small set of process performance indicators.
Download or read book Ground Water on Tropical Pacific Islands written by Gordon W. Tribble and published by Geological Survey. This book was released on 2008 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
