Larger leaves favor photosynthetic production of a sugar-rich fluid to nourish the tree, but if the tree is too tall, the nutrient flow is slowed. Why are the leaves on the tallest trees all about the ...

Figure 1: Global distribution of instances of drought impacts on forests reviewed in this study. Figure 2: Drought responses of diameter growth rate and mortality rate as a function of tree size.

It is also a very long-lived species — up to 500 years and more. Three-foot diameter trees are not uncommon, and these would ...

It's now a little harder to cut down a tree in Austin. In a unanimous vote last week, the City Council passed a so-called Heritage Tree Ordinance, which aims to tighten restrictions on the cutting of ...

Getting your Trinity Audio player ready... You don’t need an orchard or even a large chunk of space to grow your own apples — just plant a dwarf tree. Taking up less space is not the only advantage of ...

Ever wonder about the age of that beautiful tree growing in your parkway? A chart from The Morton Arboretum can help. “That large tree in your front yard is a venerable giant that needs to be ...

Blowing in the wind: a broken tree trunk. (Courtesy: Alexandre Ponomarenko) During storms, there is a critical wind speed, of around 42 m/s (90 mph), at which almost all tree trunks break – ...

Black walnut is the most valuable individual tree in Indiana based solely on the dollar value of the wood produced. This is primarily due to the very high value of walnut veneer; but considerable ...