Current Situation And Management Strategy Of Forest Resources In Dular Forest Farm

Taking Dular Forest Farm as the object,based on the small class survey data,combined with interview,questionnaire and other methods,this thesis analyzes the characteristics of forest resources in the forest farm from the aspects of land type distribution,overall situation of resources,quantity,structural characteristics,productivity level of forest resources,forest ecological function,quality grade characteristics,shrub characteristics,characteristics of suitable forest sites and so on,and puts forward forest management strategies.The conclusion has a certain guiding effect on the accurate improvement of forest quality in the forest farm.The main conclusions are as follows:(1)The forest cover rate and forest land utilization rate of the forest farm are 48.3%and 45.9%,which are lower than those of the surrounding forestry bureaus,but the forest land reserve resources are rich,and most of the site conditions are good,which is suitable for reforestation.For reforestation,local coniferous species of Larix gmelinii and Pinus sylvestris var.mongolica should be selected,pure forest or block mixed forest should be built,and Picea prudently should be used carefully.The double cover forest land utilization rate will be realized through scientific afforestation.(2)The distribution of forest land in the same land type is relatively concentrated and contiguous,which is conducive to the organization of forest management.Forest land is dominated by forest land,and the overall productivity is low.However,Larix gmelinii and Betula platyphylla forest have entered the stage of middle-aged forest,and their volume per hectare has exceeded the national average level,which is the forest stand that the forest farm should focus on.(3)The forest species structure is relatively single.The area ratio of water conservation forest,national defense forest and general timber forest is 1.8:1.3:1.The volume of productivity per unit area of general timber forest is 14.66m3/hm2 higher than the national average level.(4)The forest is dominated by natural forest,and the structure of forest tree species of different origins is relatively single.The artificial forest is dominated by larch forest with higher productivity.The natural forest is dominated by birch forest,and the volume per unit area is slightly higher than the national average level.The single species of tree species is closely related to its zonality.The same period of rain and heat provides suitable hydrothermal conditions for local high productivity tree species with strong cold resistance,such as Larix gmelinii Pinus sylvestris var.mongolica and Betula platyphylla.(5)The structure of age group is mainly middle-aged forest,and the stand is younger.Dense forests with high canopy density have a large area.(6)The forest quality status and ecological function level are "medium",and the level distribution is consistent.If the forest quality status is good,it can play a better ecological function.(7)Forest farms should strengthen forest tending and nursery construction,close mountains for afforestation,promote vegetation restoration,strengthen the construction of management capacity such as the level of forest management and protection and the quality of staff,improve the management level of forest resources archives,so as to accurately improve the quality and efficiency of forests and promote the ecological functions of forests.