Planning On Close To Nature Of Forest Resources Management Of Tian Chi Forest Farm

In recent years?Platation Soil fertility decline is serious,suffer from diseases and insect pests easily and its diversity has been controversial.Many countries use theory of close to nature transform the poor quality of plantation forestry and have achieved significant results.In this paper,ecological forest in Huaying Tianchi forest as the research object,according to the survey data of forest resources in Tianchi forest farm and the status of forest resources,adopting national technical standards for planning basis,classification of site types of Tianchi forest farm by three level classification system and site type and business which is needs,plans out of the four business models:coniferous forest restoration model,afforestation model,afforestation model,forest reclamation mode.The 10 year plan of Tianchi forest farm have been carried out.The results are as follows:Analysis on characteristics of forest resources in Tianchi Forest Farm:the site quality of forest farm is good.The site quality of medium and above area accounted for 87.4%.of the total area of Forest Farm.Forest which is in Tianchi Farm is ecological forest.The forest are middle age forest and near mature forest,none of young forest,mature forest.The composition of forest is mainly composed of Pinus and fir.The volume occupied 91.2%of the total amount of forest farm.The proportion of forest forest was larger than that of broad leaved forest,so it needs to make up broad leaved trees.In this plan,(1)coniferous forest model:The implementation of the protection zone for Monkey of ditch,Guanyinyan,black ditch and area is 514 hm2.Coniferous forest model are divided into Chinese fir forest model,Mayo Matsuko model,pine and fir mixed forest model.During the operating period,the number of selective logging is one times in 2014,The workers seleced 20 block per hectare which was 50 m2to cut and Plant camphor.The first labeled target tree(the first generation of the target tree),competitive wood,and then cut competitive wood,thinned tree and poor tree.From 2015-2019,the farm became half closed forest.The second labeled target tree(the first generation of the target tree),competitive wood,and then cut competitive wood,selecting tree and poor tree.During the operating period,it wil form mixed platation which are composed of Masson pine,camphor.(2)Afforestation mode:the management area of Hill Damand is 100 hm2.Barren wastelands which can be enclosed and natural Pinus massoniana forest are banned for 5 years.After 5 years,if forest conditions are too poor,continue to ban until the forest canopy.(3)Restoration afforestation model:The management area is Tianwan and the area is 12 hm2.In 2014,cutting forest land,burned forest land and site of high quality ecologiacal forest(mixed shrub)are recovered and Newly plant camphor.From 2015 to 2022,the workers will tend young forest.(4)Bamboo cultivation mode:The management area are the arch bridge bay,Tianwan,sky wo and the area is 586 hm2.In 2013,Phyllostachys bissetii will be reclaimed.at the same time,strengthen the cultivation and management of bamboo forest.The workers will log the trees and replase them to bamboo.the land will produact 15000-16500/hm2 of bamboo and dig bamboo shoots in summer.In this plan,regeneration forestation will use 0.54 million of seeding.From 2014 to 2015,the trees will be afforestated.Reforestation of coniferous forest model will be carried out in Guanyinyan,black ditch,Monkey of ditch,the number of seeding is 0.51 million and the area is 514 hm2.Restoration afforestation will be carried out in Tian wan,the number of seeding is 0.03 million and the area is 12 hm2.Forest yield planning:(1)Forest cutting planning:In the period of the management,the total accumulation of selected trees is not more than 15%of the total stand volume.The amount of group selective cutting was 10%,and the selective cutting per plant was 5%,The amount of selective cutting wood will be 6215 m3.Bamboo cutting planning:when the bamboo are logged in intensity of 10%per hectare for selective felling,the number of 15000-16500 per hectare can be harvested every year.According to the<Sichuan Province,a local bamboo weight table>,one year can be harvested 15 t of Phyllostachys bissetii.At the same time,pay attention to the utilization of non wood resources,planting and breeding in the forest can bring about 0.72-1.45 million.Benefit.analysis of Forest Farm:economic benefit analysis:during the operating period in 2013-2022,total revenue is 3.85-4.55million.Afforestation;social benefit analysis:providing a large number of employment opportunities,keeping the air fresh and beautiful environment;ecological benefit analysis:the area of 1412 hm2 of forest absorb carbon dioxide 3200 t,release oxygen 2000 t,reduce the greenhouse effect.The application of close to nature in our contry is rare,it is hoped that this plan can provide some reference for the promotion and implementation on close to nature forest.