Abstract:

In order to clarify the impact of different forest management modes on natural forest carbon storage, promote forests’ protection, development and sustained utilization of business district, the author used indirectly harvesting method to obtain the sample, and the content of carbon in plants was determined with the method of potassium dichromate colorimetric, the natural forest carbon storage was carried on the comparative analysis under 9 kinds of management modes. The result showed that: the combination of cutting patterns were more conducive to improve the forest tree trunks, branches and roots of carbon storage, but the carbon storage of leaves had little difference under a variety of operating modes. The distributions of the carbon storage for the natural forest stands was generally subjected to the tree layer>litter layer>herb layer>shrub layer, natural forest carbon storage was ready for the greatest in the combination of cutting patterns, and the conservation replanting mode was in the minimum, orientation training mode and thinning adjustment mode was in the medium. Forest carbon storage mainly concentrated in the tree layer, stands for each layer of the management mode were different, judging from the total amount of carbon storage, natural forest management mode selected combination of cutting patterns was more reasonable, more conducive to increase carbon storage of forest resource, promote to form the natural mixed forest which both were of high ecological and economic, push forward material cycle of forest ecosystem, promote the health of the ecological system and sustainable development.