📚

All Subjects

 > 

♻️ 

AP Enviro

 > 

🏖

Unit 5

5.5 Irrigation Methods

2 min readmay 1, 2020

Mark Little


AP Environmental Science ♻️

Bookmarked 4.1k • 227 resources
See Units

Irrigation accounts for approximately 70% of freshwater use worldwide. There are various types of irrigation.  These include spray irrigation, flood irrigation, furrow irrigation and drip irrigation.  

Spray Irrigation

Water is distributed and sprayed over the field from a central location. This method is more efficient than flood irrigation because it requires less water and a lot less water is lost to evaporation or runoff.   
https://upload.wikimedia.org/wikipedia/commons/1/17/PivotIrrigationOnCotton.jpg

Image Courtesy of Wikimedia

Flood Irrigation

Is a type of surface irrigation. Water is dumped onto the land and distributed all over the field. 
https://upload.wikimedia.org/wikipedia/commons/thumb/a/ae/LevelBasinFloodIrrigation.JPG/800px-LevelBasinFloodIrrigation.jpg

Image Courtesy of Wikimedia

Furrow Irrigation

This Is a type of surface irrigation that uses trenches that are dug between rows of crops. Furrow irrigation is inexpensive and there is some water loss.
https://upload.wikimedia.org/wikipedia/commons/thumb/9/9b/Furrow_irrigated_Sugar.JPG/800px-Furrow_irrigated_Sugar.jpg

Image Courtesy of Wikimedia

Drip Irrigation

A localized irrigation system that conserves water and distributes water close to the plant roots. Drip irrigation uses a hose with holes in it and is by far the most efficient way to irrigate but it is the most costly as well. 
https://upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Dripirrigation.png/800px-Dripirrigation.png

Image Courtesy of Wikimedia

Salinization

A process by which salt remains in the soil after the water evaporates.  This salt buildup overtime is toxic to plants. Monitoring your soil, maintaining proper vegetation and the utilization of proper irrigation techniques for the soil conditions help reduce the chances of salinization occurring. Aquifers are underground water storage for groundwater. It gathers water that seeps through porous rock, permeable rock (like sandstone or soil), and percolates down to where the water is trapped in by non porous rock, such as clay. One of the largest aquifers is the Ogallala aquifer found in the great plains. To use the water from an aquifer, the water needs to be pumped out and an aquifer can be recharged with water, but it takes a long time to replenish.
https://upload.wikimedia.org/wikipedia/commons/thumb/0/04/Aquifer_en.svg/606px-Aquifer_en.svg.png

Image Courtesy of Wikimedia

Resources:

Was this guide helpful?

Join us on Discord
Thousands of students are studying with us for the AP Environmental Science exam.
join now
Hours Logo
Studying with Hours = the ultimate focus mode
Start a free study session
🔍 Are you ready for college apps?
Take this quiz and find out!
Start Quiz
Browse Study Guides By Unit
📆Big Reviews: Finals & Exam Prep
✍️Free Response Questions (FRQs)
🧐Multiple Choice Questions (MCQs)
🏜Unit 1: The Living World: Ecosystems
🐠Unit 2: The Living World: Biodiversity
👪Unit 3: Populations
🌏Unit 4: Earth Systems and Resources
🏖Unit 5: Land and Water Use
⚡️Unit 6: Energy Resources and Consumption
💨Unit 7: Atmospheric Pollution
🔥Unit 9: Global Change
FREE AP enviro Survival Pack + Cram Chart PDF
Sign up now for instant access to 2 amazing downloads to help you get a 5
Join us on Discord
Thousands of students are studying with us for the AP Environmental Science exam.
join now
💪🏽 Are you ready for the AP Enviro exam?
Take this quiz for a progress check on what you’ve learned this year and get a personalized study plan to grab that 5!
START QUIZ
Play this on HyperTyper
Practice your typing skills while reading Irrigation Methods
Start Game