Irrigation & Water Use - USDA ERS
2023年9月8日 · Various methods are used to apply irrigation water to crops, which can be broadly categorized as gravity or pressurized systems. Gravity irrigation systems use on-field furrows or basins to advance water across the field surface through gravity-means only. Pressurized systems apply water under pressure through pipes or other tubing directly to ...
Irrigation Water Use | U.S. Geological Survey - USGS.gov
2019年3月1日 · Irrigation water use includes water that is applied by an irrigation system to sustain plant growth in agricultural and horticultural practices. Irrigation also includes water that is used for pre-irrigation, frost protection, chemical application, weed control, field preparation, crop cooling, harvesting, dust suppression, and leaching salts ...
Estimation of Global Irrigation Water Use by the Integration of ...
2022年3月14日 · An integrated framework is proposed to estimate global irrigation water use (IWU) from multiple satellite-based products. The IWU estimation scheme can capture the trends of irrigation dynamics well during the study period. The underestimation in global IWU can be mainly attributed to the coarse resolution of the satellite-based products
Irrigation Water Use | U.S. Geological Survey - USGS.gov
2018年6月7日 · Throughout the world, irrigation (water for agriculture, or growing crops) is probably the most important use of water (except for drinking and washing a smelly dog, perhaps). Irrigation water is essential for keeping fruits, vegetables, and grains growing to feed the world's population, and this has been a constant for thousands of years.
Water Use in the United States | U.S. Geological Survey - USGS.gov
Water use estimates for 2000 through 2020 are now available for the three largest categories of use in the United States: self-supplied thermoelectric power generation, self-supplied irrigation, and public supply. Five additional categories of use (self-supplied industrial, domestic, mining, livestock, and aquaculture) will be available in 2025.
2023 Agriculture Irrigation and Water Management Survey
2024年12月3日 · The 2023 Irrigation and Water Management Survey was published on October 31, 2024. The survey provides information about irrigation and water use across the United States on farms, ranches, and horticultural operations. The survey includes data on farms with irrigation equipment, sizes of farms with irrigation, using recycled or reclaimed water ...
Irrigation in the Earth system - Nature Reviews Earth & Environment
2023年6月20日 · Irrigation accounts for ~70% of global freshwater withdrawals and ~90% of consumptive water use, driving myriad Earth system impacts. In this Review, we summarize how irrigation currently...
GRAPHIC: Irrigation, water use on US farms are in decline
2024年12月4日 · Irrigation on U.S. farms declined between 2018 and 2023, with fewer farms using irrigation methods and less water applied overall, the latest data shows. Over that five-year period, the number of irrigated farms dropped by 8%, irrigated acres decreased by 5%, and water use fell from 83.4 million to 81 million acre-feet, according to the […]
Water-Use Efficiency, Water Quality, and Irrigation
2024年11月23日 · Here it is recognized that water is limited and precious; hence, increasing water-use efficiency may decrease water loss, increase crop production per irrigated unit area, and reduce the environmental degradation arising from irrigation. Improvement in soil health and structure is very essential for enhancing water-use efficiency.
• Measurement of irrigation water • Design of pumping plants • Design criteria and design procedures for surface, sprinkler, and micro irrigation methods and the variety of systems for each method that can be adaptable to meet local crop, water, …