Study On Technological System For Industry Commercial Forest Cultivating Technology Of Korean Spruce

Korean Spruce is one of mean commercial tree species in northeast forest region, it has high quality timber and was used abroad as well as grow quickly in different kind of site condition. Forestry competent authority has pay more attention on Korean Spruce forestiy. Cultivating of Korean Spruce commercial forest is important measurement of increasing timber quantity, resuming forest resources, improving ecological environment. Carrying out commercial forest cultivating of Korean Spruce is important and useful.In order to solve the key technology of cultivating and management of Korean Spruce artificial forest, the Study on technological system for industry commercial forest cultivating of Korean Spruce (Picea Korainesis) was carried out. After a period of time, a set of systematic concisely, practically technology was screen out for industry commercial forest cultivating.Abundant Data and information was collected by investigation in distribution region of Korean Spruce, advanced modeling technology and method, theory of botany, ecology, breeding, silviculture, forest management were applied. Statistic analysis such as progressively regression, clustering analyze, quantitatively theory were processed. Typically sample plot was selected, scientific fruit of study on cultivating technology by former academician was used for reference, integrated technological system for industry commercial forest cultivating technology of Korean Spruce was put forward, this technological system will play a key role in improving cultivating technology of Korean Spruce and exert effect actively in applying above system in forest practice.This thesis detailed discuss the complete set of technology according to different aspect of station~ site condition, breeding seedlings ,forest ~managemen1, cultural work, - density rule, cultivating pattern. Region of Korean Spruce forest was divided into 4 station and 11 substation according to regression analyze and constructed modeling depended on hydro-thermal f~ctors and average height of forest stand dominance. Classification and evaluation of site condition is to promote forest stand growth well. 5 site condition type group and 15 site condition type was divided according to main factor thickness of soil and slope gradient screened out by quantitatively analyzed of site condition factors and average height of forest stand dominance. Timber quality was formed by analyzing physical and chemical properties, effect on timber was analyzed according to different factor of site condition, age, density, the result shows that age has high effect on timber. Timber and specification of 25-year-old artificial forest accord with requirement of cultivating. Breeding technology is the base of seedling cultivating, seedling of Korean Spruce in certain shade could grow better than seedling of Korean Spruce in sunlight, seedling of Korean Spruce could grow bester in 25% soil containing water. Forest management was formed by standardized site selection, site preparation, planting, cultural work on young trees of seedlings cultivating technology. Qantificationally density management was depend on density domino effect theory, then management density list and maximum list was founded for artificial Korean Spruce forest. Cultivating cycle of cultivating Korean Spruce is 27 years for pulp timber, 45 years for big diameter construction timber, according to dynamic intermediate felling of different station, site condition, cultivating aim. Management modeling was a complete set of comprehensive and all-embracing mathematical modeling founded on the base of station, growth rule of site condition forest stand, rule of breeding and silviculture density. Cultivating mode embodied above research fruit. Then 6 cultivating mode was put forward.