Site Comprehensive Classification And Fire Tree Species Selection Of Multi-objective In The Hills Between The Changjiang Rive And The Huaihe Rive

Collectting the natural elements of information by survey of the hills between the Changjiang Rive and the Huaihe Rive,and selectting43sample plots in jianghuai hilly region of the survey data.Based on it and taking into account the soil topography,climate and other factors in this region.In according with the principles of classification of primary sites,this area were classified into5site type areas,11site type groups,and27site type cells.Based on the field Determination,in data analysis,by the methods and ways of successive regression and principal component analysis,fire-resisting properties of20species of trees in the Changjiang Rive and the Huaihe Rive of Anhui Province has been carried out comprehensive evaluation, From the comprehensive evaluation value,we knew that these species can be classified into four groups according to their fire-resisting properties.ClassI:Schima superba、Camellia oleifer、C eyrei Cyclobalanopsis glauca、Lithocarpus glabe、C.sclerophylla、Lithocarpus harland、 Castanea seguinii、Quercus variabilis,this kind of trees species are the Changjiang Rive and the Huaihe Rive region’s major fire species.Among them,the Schima superba are not only Fire-resistance, but also the adaptability and wide geographical distribution, It is the region’s major fire species.in this area. Camellia oleifera which is a Deep-rooted trees, it have the ability to bear barren and arid.The seed oil of Camellia oleifera is a kind of healthy caring oil, it also the one of the world’s four major woody species.The tree not only improve the role of the ecological environment, but also has significant remarkable economic efficiency.However,due to smaller growing scale and artisanal volume,its fire prevention effect is affected.Cyclobalanopsis glauca is fire-resistance and has the ability to bear barren and arid.It also can grow in acidic soil and opposition to less demanding conditions, the budding force and suckering force are strong,with strong adaptability. Ii’s a good fireproof tree species in jianghuai hilly southern. C.eyrei、Lithocarpus glabra、 C.sclerophylla、Cyclobalanopsis glauca belong to the part of Subtropical Broad-leaf and ever green tree species.They usually grow in the humidand fertile environment.The fire-resistant functions of them are much Stronger.The wood of Cyclobalanopsbs glauca、C.eyreo、Lithocarpusglabra、C.sclerophylla are wide used,and the material quality of them is bard.These kinds of trees often associated with Cunninghamia lanceolata、Cunninghamia lanceolata、Phyllostachys pubescens Mazei form of natural mixed forest.This forest fire resistant performance is good, and the economic value is obviously.Class Ⅱ tree species is Ligustrum lucidum、Camptotheca acuminate、Daphniphyllum macropodum、Viburnum odoratissimum、Liquidambar formosana,which is the less important fire-resistant tree species in the Changjiang Rive and the Huaihe Rive;Such species in terms of flammability or extensive are lower than the class I species, but it is still a region fire species in this area.This type of trees will be chosen according to different sites and geographical features.Among this, the distributed of the Ligustrum lucidum is Widely, it could live in bright light or little shade environment.Because of its beautiful foliage、evergreen, and suitable for the urban environment,so its suitable for planting in the scenic city park.She is not only beautify the environment effect,but also achieve a good fire effects.So it could be planting in the northern of the Changjiang Rive and the Huaihe Rive. Such as Viburnum odoratissimum,which belongs to shade-tolerance trees and is suitable to grow on wet、fertile and acidic soil from general to tiny,so it is the fire and landscape trees in the middle and lower forest. Class Ⅲ tree Species is Phyllostachys pubescens and Cinnamomum camphora,this kind of tree species is not proper for fire-resistant tree species in the area.But because of its high economic value, it can be planted with the Ⅰ and Ⅱ plants, so that paly his role of a certain economic and fire prevention.Class Ⅳ tree species are Cunninghamia lanceolata、Pinus massoniana、Cryptomeria fortunei、Pinus elliotti.This type of tree species resists the fire weakly, it is easy to bum and caused forest fires.The fire spread strongly and speedy, so that it is difficult to extinguish, that’s why it become the focus of forest fire prevention. It needs to build the isolation zone of fire prevention which are composed in the builded or building forest with the class I and the class II tree species,at the same time it needs to create mixed forest of broad-leaf trees to improve the forest fire-resistant function.