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2. Turpentine - Wikipedia

   en.wikipedia.org/wiki/Turpentine

   To tap into the sap producing layers of the tree, harvesters used a series of hacks to remove the pine bark. Once debarked, pine trees secrete crude turpentine onto the surface of the wound as a protective measure to seal the opening, resist exposure to micro-organisms and insects, and prevent vital sap loss. Harvesters wounded trees in V ...

3. Gymnostoma australianum - Wikipedia

   en.wikipedia.org/wiki/Gymnostoma_australianum

   It grows into a small tree of up to 7 m (23 ft) tall. Mature trees bear cone–structure fruits 7–15 mm (0.3–0.6 in) long X 8–15 mm (0.3–0.6 in) wide. When ripe the cone's numerous valves open to release the dark–coloured winged seeds 7–8 mm long.

4. Fertilizer tree - Wikipedia

   en.wikipedia.org/wiki/Fertilizer_tree

   Sesbania, Gliricidia, Tephrosia, and Faidherbia albida are known as fertilizer trees. Tree lucerne or tagasaste (Cytisus proliferus) is able to fix more than 587 kg. of nitrogen per hectare per year. It can increase maize (corn) yields from 1 ton per hectare per year to more than 10 tons per ha/year in areas with more than 850 mm. of rain per ...

5. Pinus resinosa - Wikipedia

   en.wikipedia.org/wiki/Pinus_resinosa

   Red pine is a coniferous evergreen tree characterized by tall, straight growth. [6] It usually ranges from 20–35 metres (66–115 feet) in height and 1 m (3 ft 3 in) in trunk diameter, exceptionally reaching 43.77 m (143 + 1 ⁄ 2 ft) tall. [7] The crown is conical, becoming a narrow rounded dome with age.

6. Christmas tree cultivation - Wikipedia

   en.wikipedia.org/wiki/Christmas_tree_cultivation

   Christmas tree cultivation is an agricultural, forestry, and horticultural occupation which involves growing pine, spruce, and fir trees specifically for use as Christmas trees. The first Christmas tree farm was established in 1901, but most consumers continued to obtain their trees from forests until the 1930s and 1940s.

7. Ramial chipped wood - Wikipedia

   en.wikipedia.org/wiki/Ramial_chipped_wood

   RCW consists of the twigs and branches of trees and woody shrubs, preferably deciduous, including small limbs up to 7 cm. (2 3 ⁄ 4 in.) in diameter. It is processed into small pieces by chipping , and the resulting product has a relatively high ratio of cambium to cellulose compared to other chipped wood products.