Korean pine
Gymnosperms Pinaceae, also known as fruit pine, red pine, Korean pine and so on. Evergreen trees, up to 50 meters high, leaves 6 to 12 centimeters long, 5 needles in a bunch, leaves thick and hard, straight, there are 3 mesophytic resin channels. The cone is 914 cm long and yellowish brown when ripe. The seeds are large and wingless, 1.2-1.6 cm long and 13-16 cotyledons. Shallow roots, strong cold resistance, soft wood, turpentine, strong anti-corrosion, a wide range of uses; needles can extract vitamin C; seeds are edible, oil content up to 70%, after medicine, it can dispel wind and replenish deficiency, which is a nourishing and strong agent. Baking gum can be extracted from bark. China is distributed in Changbai Mountain, Xing'an Mountains, Japan, Korea and the former Soviet Union.
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Planting and raising seedlings of Pinus koraiensis?
The method of sowing and raising seedlings of Pinus koraiensis is: spring sowing is suitable. The northeast region is better from mid-April to early June. Sowing or strip sowing is OK. In recent years, the seeds are usually sown with wide strips, with a width of 8 to 10 centimeters. After sowing, the soil is suppressed once and then covered with soil, which is about 2 cm thick. If it can be irrigated in time, no grass can be covered after sowing, and all-light seedlings can be raised. In order to kill weeds, before emergence after sowing, 3 grams of herbicide per square meter, 1 gram of atrazine or 2 grams of promethazine can be sprayed on the bed surface. Do not irrigate within 10 hours after spraying. The sowing rate of Korean pine is 3000 to 37 per hectare.
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The law of carbon sequestration of aged Korean pine forest in Changbai Mountain was revealed.
On December 23, the project "study on carbon sequestration function of aged broad-leaved Korean pine forest in Changbai Mountain", which was conducted by the National Field Scientific observation and Research Station of Changbai Mountain Forest ecosystem in Jilin Province, passed the expert review organized by Changchun Branch of Chinese Academy of Sciences in Changchun. Experts believe that the integration of a variety of methods in the project, component flux change and process mechanism research has reached the international advanced level. As the main body of terrestrial ecosystem, the process and mechanism of forest carbon cycle play an important role in understanding the function of forest carbon sequestration and its impact and response to global climate change.
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