Tree Quotes

“A tree can lift and transpire vast amounts of water. A single tree in the Amazon rain forest lifts hundreds of liters of water every day. The rain forest behaves like a green ocean, transpiring water that rains upward, as though gravity were reversed. These transpired mists then flow across the continent in great rivers of vapor. The water condenses, falls as rain, and is pulled back up again through the trees. It rises and falls on its westward migration an average of six times before finally hitting the physical barrier of the Andes mountains and flowing back across the continent as the mightiest river on Earth. Similarly, Indonesia, with 114 million hectares (280 million acres) of tropical forest (it is the second most forested country in the world after Brazil) is a vital part of the Asian hydrologic cycle. Around the world, forests constantly replenish Earth’s supply of fresh water and play a key role in weather and climate.”
― David Suzuki, Tree: A Life Story

“Lignin is a linkage of three aromatic alcohols—coumaryl, coniferyl, and sinapyl—which fill the spaces in cell walls that are not already occupied by other substances, even ousting water molecules to do so. It thus forms a very strong hydrophobic net, cementing all the cell-wall elements in place and providing strength and rigidity to the xylem. It also provides an important barrier to fungal and bacterial infections. When a tree is invaded by disease, it seals off the infected section with a wall of lignin so that the disease cannot spread. Lignin is so tough that getting rid of it is a costly process in pulp-and-paper plants. The acids needed to break down lignin in pulpwood are the chief pollutants such mills contribute to the environment.”
― David Suzuki, Tree: A Life Story