Study On Pinus Tabulaeformis Forest Management Technology Of Taiyue Mountain In Shanxi

Pinus forest is China’s endemic species, widely distributed in northern China mountain.Pinus forest for the temperate species, cold, drought and strong. Therefore often used as a plantation afforestation tree species of the temperate regions. Shanxi is known as "Pinus forest town" reputation, pinus forest is almost all over the province area, growth is good.Therefore, the pinus forest in the Shanxi artificial Public Welfare multifunctional business plays an important role. Shanxi pinus forest forest is mainly concentrated in the Taiyueshan and Guangdishan, so this research play the experiment Taiyue Mountains, Shanxi, Shanxi Province, the Forest Management Office in Ma Quanlin field of pinus forest plantation study, provide theoretical guidance and technical support for multi-functional operation of the pinus forest management.In this paper, the field line tips about, according to different age, different altitudes, different slope positions with at least10size20m x30m standard, three-group comparison repeated. Set the same stands of different age phases of the survey sample, determine the actual size of the plot, the same stand with at least three replicates. Trees within the plot wood seized feet, to calculate the intensity of thinning the DBH, tree height, crown width, individual volume and the volume. Using SPSS software statistics, and using the LSD multiple comparison method to determine the stand each index difference between the different thinning intensity. On different age, different elevation, slope position of the10plots were20%,30%,40%three different gradient strength tending harvesting. Completion of field investigations, parse trees of the19standard wood, biomass measurement. Different forest management practices to implement the comparison test, by comparing the summary of the multi-functional business technologies and methods suited to local forest ecosystems.Species diversity index changed significantly with the different densities of Pinus forest. When the pinus forest density is1783/ha, pinus forest forest of shrubs and herbaceous diversity index is the highest. When the pinus forest density is6533/ha, Pinus forest forest, shrubs and herbaceous species diversity index reached is the lowest. Pinus forest density of the average diameter at breast height, average tree stands have a significant impact on high.Taiyueshan pinus tabulaeformis public welfare forest-management evaluation of six criteria layer index weights descending respectively:water conservation (0.32), conservation of soil (0.21), biological diversity conservation (0.21), carbon fixation and oxygen (0.16), purification of atmospheric environment (0.08), the accumulation of nutrients (0.02).The contribution rate of water conservation- Taiyueshan pinus tabulaeformis multi-functional play32%, is Taiyueshan pinus tabulaeformis multi-functional business.This research suitable Taiyueshan the Pinus tabulaeformis public welfare multi-functional operation of technology, stand structure and function, and stand density adjustment. Adjustment means by harvesting this important forest, according to the problems of the forest,useing density cutting, adjustment of the lower thinning and quality-adjusted cutting harvesting practices.