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Sod is grown on specialist farms. For 2009, the United States Department of Agriculture reported 1,412 farms had 368,188 acres (149,000.4 ha) of sod in production. [9]It is usually grown locally (within 100 miles of the target market) [10] to minimize both the cost of transport and also the risk of damage to the product.
Map of wood-filled areas in the United States, circa 2000 [1]. In the United States, the forest cover by state and territory is estimated from tree-attributes using the basic statistics reported by the Forest Inventory and Analysis (FIA) program of the Forest Service. [2]
The load of approximately 250 kg per m 2 of a sod roof is an advantage because it helps to compress the logs and make the walls more draught-proof. In winter the total load may well increase to 400 or 500 kg per m 2 because of snow. [1] Sod is also a reasonably efficient insulator in a cold climate.
In fact, many states such as Virginia, Minnesota, ... Small Understory Trees (Part Shade), 10 to 15 Feet Tall. Dogwood (Cornus florida), USDA zones 5 to 9. Redbud (Cercis canadensis), USDA zones 4 ...
In 2016, a rebate of $10-$15 per square feet was introduced, “promoting the voluntary installation of green roofs for the purpose of reducing stormwater runoff and pollutants”. [ 123 ] $10 per square foot rebates were set for installation within a combined sewer system. $15 per square foot rebates were set for installation within a ...
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Native ash species, including white ash (pictured), have been declining rapidly this century due to predation by the emerald ash borer. [1]Silvics of North America (1991), [2] [3] a forest inventory compiled and published by the United States Forest Service, includes many hardwood trees.