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The purpose of Arboriculture is mostly: --manage woody landscape plants Forestry is closely related but really has a different goal dealing with plants. Arboriculture can be considered to have a similar relationship to forestry as gardening has to agriculture. Here are some of the basic and assumed facts about trees: By having trees around your house providing shade, they will reduce cooling costs. Conversely, by having trees around your house providing shelter, they will reduce heating costs. Trees keep the air supply fresh because they absorb carbon dioxide and produce oxygen. An acre of trees can absorb as much carbon as is produced by a car driven up to 8700 miles in one year, In a big city environment a tree will last only about 8 years. Air temperature is lowered by the evaporating water in their leaves. The roots of trees will prevent erosion and help stabilize the soil. Trees improve water quality by slowing and filtering the rain water, also protecting aquifers and watersheds. Protection from the canopy of the tree slows down the fall of rain, sleet and hail. The wildlife count on the trees for food and shelter. The longest living organisms on earth are trees. When the trees breathe in they take in carbon and breathe out oxygen, when people breathe in they take in oxygen and put out carbon dioxide. Oxygen produced by just 1 acre of trees per year will provide enough to take care of 18 people for that year. On the average a tree in one year will produce 260 pounds of oxygen. One acre of trees can remove up to 2.6 tons of carbon dioxide each year. Shade trees surrounding buildings will make up to 20 degrees cooler in the summer. When the seed of the cottonwood tree takes flight it will stay aloft the longest. One million seeds per year can be produced the a adult birch tree. The General Sherman, a large redwood sequoia in California, is one of the tallest softwood trees in the world. The tallest tree in the world is a coast redwood in California that is more than 360 feet. The Ada Tree of Australia is 236 feet tall with a root system that spreads out for over a acre. Bristlecone pines are said to be the oldest trees in the world at 4600 years. The science of calculating a tree's age by its rings is called Dendrochronology. Tree rings provide exact info about environmental events, including volcanic eruptions. From Arboriculture to Organic Gardening Glossary |
