Irrigated land is essential for global food production, contributing to around 40% of total agricultural output despite covering only 20% of cultivated land. Efficient irrigation systems not only improve crop yields but also ensure the cultivation of water-intensive crops like rice, sugarcane, and cotton in arid and semi-arid regions.

2018年6月11日 · Irrigation is the the controlled application of water for agricultural purposes through manmade systems to supply water requirements not satisfied by rainfall. Crop irrigation is vital throughout the world in order to provide the world's ever-growing populations with enough food. Many different irrigation methods are used worldwide, including:

2024年12月9日 · To irrigate is to water crops by bringing in water from pipes, canals, sprinklers, or other man-made means, rather than relying on rainfall alone. Places that have sparse or seasonal rainfall could not sustain agriculture without irrigation.

Irrigation (also referred to as watering of plants) is the practice of applying controlled amounts of water to land to help grow crops, landscape plants, and lawns. Irrigation has been a key aspect of agriculture for over 5,000 years and has been developed by many cultures around the world.

6 天之前 · Irrigation, in agriculture, the artificial application of water to land. Some land requires irrigation before it can be used for any agricultural production. In other places, irrigation is primarily a means to supplement rainfall and serves to increase production.

2025年1月8日 · Since 1890, irrigated acreage nationwide has grown from less than 3 million acres to over 58 million acres in 2017. Expansion in the nation’s irrigated land was attributable, in part, to federal, State and local water development projects as well as innovations in groundwater pumping technologies.

Urban land area where elevation is below 5 meters (% of total land area) Land area (sq. km) Urban land area where elevation is below 5 meters (sq. km) Urban land area (sq. km) Download. CSV XML EXCEL. DataBank. Explore Our DataBank. WDI Tables. Thematic data tables from WDI. All Countries and Economies.

Irrigation is the process of supplying water to the land at regular intervals by means of canals and other artificial methods, to enhance agricultural growth and maintain the landscape during the periods of less average rainfall.

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...

2017年6月5日 · There are two main types of irrigation systems: gravity and pressurized irrigation. Gravity irrigation uses the force of gravity and field borders or furrows to distribute water across a field. Open ditches or pipe systems along with siphon tubes, ditch gates, pipe valves or orifices deliver the water to the field.