Current Situation,Dynamic Change Of Forest Resources And Sustainable Management In Alihe Forestry Bureau

This thesis takes Alihe Forestry Bureau of Greater Khingan Forest Industry Group in Inner Mongolia as the research object,based on the comparative statistics of the second class forest resource survey database in 2010 and 2018,analyzes the present situation and characteristics of forest resources,the dynamic changes of forest resources and the evaluation of management effect,summarizes the favorable factorsand restricting factors that affect the sustainable management of forest,and puts forward the suggestions and strategies that can promote the sustainable management of forest in forestry Bureau.The main results are as follows:(1)The forest area of Forestry Bureau is 451896.93hm2,and the total volume is39163807.1m3;The area of arbor forest is 402628.66hm2,and the volume of arbor forest is37118904.5m3,accounting for 89.10% of the total area and 94.78% of the total volume.The dominant tree species are larch and birch,the age group structure is dominated by middle forest age.The average volume of arbor forest per hectare is 92.19m3/hm2,the average canopy density is 0.69,and the average status grade is Ⅳ.29.Forest resources are abundant,the carbon storage is about 25.72 million tons,the forest coverage rate is 89.09%,the forest greening rate is 90.39%.(2)In 2018,compared with 2010,the area and volume of arbor forest increased by7179.66hm2 and 9307994.5m3;the volume of arbor forest increased by 21.86 m3/hm2 per hectare,the average canopy density increased by 0.01 and the average status level increased by 0.01;the area of mixed forest and near-mature forest increased by 8.61% and 10.54%respectively,and the forest ecosystem gradually became stable;forest coverage increased by1.49%.According to the ecological comprehensive evaluation index,economic comprehensive evaluation index and social comprehensive evaluation index,the forest management situation from 2010 to 2018 was evaluated,and the comprehensive evaluation result was good.(3)The restrictive factors affecting the sustainable management of forestry bureau are as follows: tree species are single,unreasonable structure;the land is declining;the structure of forestry industry is single,the utilization rate of undergrowth resource is low;infrastructure construction lags behind,and technical strength is weak.Put forward the following strategies to promote sustainable business: developing business policy and business objectives;scientific classification and division of functional areas;implementing targeted forest management measures;promoting the development of forest economy to scale and industrialization;perfecting forest tourism;scientific accounting and measurement of forest carbon sink and other ecological services;maintaining forest health and protecting biodiversity;strengthening safeguards and infrastructure development.