Illegal Immigrants of the Plant World by Adam Downing
Alien Invaders They look pretty, but the buttercup fig is considered an invasive alien. Plants have been “immigrating” to North America ever since the first Europeans arrived and earlier, depending on how you define non-native. Many of our main agricultural crops, such as corn and wheat, are not native to the United States. The...
Apr 16
What Good are Truffula Trees? by Adam Downing
Dr. Suess’s “The Lorax” book was published in 1971, coincidentally, the same year I was born. Forty+ years later, I find myself in a vocation having a lot to do with trees and the book hitting the silver screen. Besides these parallels giving me shivers, the likeness of the message communicated in the book (and presumably the m...
Mar 22
Air: What’s a Tree Got to Do with It? by Adam Downing
Trees provide heat relief in crowded parking lots. Credit: Pics4Learning Everyone knows that trees clean the air. But do you know how they do it? Dave Nowak, a researcher with the USDA Forest Service in the Northeast has studied the effect of trees on air quality extensively. Trees clean the air in basically four different ways an...
Sep 13
Watershed: More than an Event by Adam Downing
The Opal Creek Valley contains 50 waterfalls, 5 lakes and 36 miles of hiking trails. It forms the largest intact stand of old growth forest in the Western Cascades and 500-1000 year old trees are common. The most abundant trees are Douglas fir, Western Red cedar and Western Hemlock. Source: WSF Water. Essential to survival, yet too m...
Sep 07
Air: What’s a Tree Got to Do with It? by Adam Downing
Everyone knows that trees clean the air. But do you know how they do it? Dave Nowak, a researcher with the USDA Forest Service in the Northeast has studied the effect of trees on air quality extensively. Trees clean the air in basically four different ways and Dr. Nowak has organized these as an easy to remember acrostic: T-R-E-E. ...
Sep 02