Fresh water

3 Surprising Ways Water Depends on Healthy Forests

Deforestation in the Amazon can affect rainfall in places as far away as Texas. Photo by Katja Schulz/Flickr

Healthy forests are critical to providing clean water. Forests can positively impact the quantity, quality and filtration costs associated with a city’s water, sometimes even reducing the need for costly concrete and steel infrastructure.

The world’s major watersheds lost 6% of their tree cover on average from 2000–2014. Today, about 31% of the world’s watershed area is covered by forests. Deforestation in these watersheds, often caused by commodity and agricultural production, can contaminate water, fuel floods and drought, and lead to higher water treatment costs.

It’s fitting that the International Day of Forests (on March 21) and World Water Day (on March 22) fall next to each other, as the health of these important resources often go hand-in-hand. To celebrate this year, let’s look at just how big of a role forests play in providing clean water: 1. The Quality of Water Erosion—when rainfall, runoff or wind detach soil particles—is a significant problem that affects both water quality and quantity. Healthy forests act as a filter to keep pollution out of water. Strong roots anchor soil against erosion and […]

More about rivers and watersheds:

How planting trees and grasses can help stabilise farmland in a changing climate

Rivers cover lots more of the Earth than we thought

The veins of America: Stunning map shows every river basin in the USA

Water and wetlands

River Revives After Largest Dam Removal in USA History

Cleansing the Air at the Expense of Waterways

Summary
Article Name
3 Surprising Ways Water Depends on Healthy Forests
Description
Forests can positively impact the quantity, quality and filtration costs of a city's water, even reducing needs for costly concrete, steel infrastructure.
Author
Publisher Name
World Resources Institute
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