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Animal and Irrigation Water Use in Pennsylvania in 2002, 2010, 2020, and 2030

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  2007 ASAE Annual Meeting  072166.(doi:10.13031/2013.23416)
Authors:   Albert R Jarrett, Saed Sawar Roudsari
Keywords:   Animal, Irrigation, Water Use, Future Projections, Pennsylvania

This project estimated the volume of water that is to be needed by agriculture in Pennsylvania for irrigation onto plant production units and used by animal production units in the years 2002 and projected to be used in 2010, 2020, and 2030. It was assumed that the growing seasons of 2010, 2020, and 2030 will have 10-year droughts. The acreages of each crop were taken from the United States Department of Commerce National Agricultural Statistics Service (NASS) for the years of 1982, 1987, 1992, 1997, and 2002 and extrapolated to 2010, 2020, and 2030 using multiple linear regression. The maximum daily (Q7-10) water needed for Pennsylvania was about 140 MGD for all crops in 2002; a year with, a 1.2- to 1.8-year drought. Under the assumption that 2010, 2020, and 2030 would experience a 10-year drought, 245, 304, and 360 MGD, respectively will be needed to meet the Q7-10 requirement in each of these years. The animal populations for 1982, 1987, 1992, 1997 and 2002 were collected and extrapolated to 2010, 2020, and 2030. About 48 MGD of water was used for raising animals in 2002. Animal water use is expected to require 49, 50, and 51 MGD for 2010, 2020, and 2030, respectively. The total irrigated cropland and animal estimates for 2002 was 188 MGD. In 2010, 2020, and 2030 assuming a 10-year drought occurs in each of these years, agriculture is expected to have a maximum daily water requirement of 294, 354, and 414 MGD, respectively.

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