Study On The Growth Rhythm Of Six Main Trees In Tieling City

Tieling has been a lot of,Japanese larch,pinus tabulaeformis,robinia,willow,elm,poplar,such as needle broadleaf trees in the forest and afforestation is widely used on the ground,and have a long history and large quantity,wide range of application,etc.With the pace of increase Tieling city ecological civilization construction,they also more prominent in the role of afforestation and greening.In order to meet the information demand increase forestry workers on plant growth and more intuitive,more image,more real reflect the status of tree growth and spatial structure,and to predict the future development trend of forest and forest landscape,growth rhythm arises at the historic moment.And trees growth changes over time research is becoming more and more close attention by industry experts and scholars.Now,many studies have shown that growth of trees and forest age into positive correlation,and can establish a certain growth rhythm.Forestry on the growth rhythm mainly includes the stand growth rhythm and ChanMu growth rhythm,and ChanMu growth rhythm is the stand growth rhythm.ChanMu tree's growth rhythm parameters mainly include trees,tree height,diameter at breast height,crown breadth and under higher branch.Growth rhythm is a quantitative study the process of the growth of trees.It can be used to predict the growth of trees in the future trend,can also evaluate the growth of trees,is not only the foundation of preparation of wood table,also is in the landscape design of forest management and to predict the future harvest and the basis of a landscape.There are a lot of experts and scholars on the trees change laws of static and dynamic over time a large number of detailed research.In this paper,the author in a line at the grass-roots level have a lot of higher information of forest,forest age,diameter at breast height,tree felling design large and accurate data,chooses six kinds of common species of tree and the trees grow well as the research object,further research on trees growth and the brief analysis of the relationship between different forest age trees,diameter at breast height,tree height,crown breadth,the branch higher growth was a different reason.For data analysis,find the laws of nature,thus fitting the rhythm suitable for the growth of tree growth at the present stage.Explore its growth regularity of growth rhythm is set up,using quantitative indicators to illustrate various growth from tree(different)in a landscape effect and forest forecast.Study its growth over time,the relationship between the growth of diameter at breast height and tree height information,simulate the tree growth rhythm,for the future growth of trees and landscape prediction and growth forecasts to lay a good foundation.The research results show that the relationship between age and DBH growth of acacia should choose quadratic curve equation as acacia DBH growth rhythm,namely Y=0.005A2+0.771A+1.59;Age and tree height growth relationship should choose power function as acacia tree height growth rhythm,namely Y=1.546A0.669;Relationship between diameter at breast height and tree height growth should be chosen quadratic curve equation in Tieling acacia relationship between diameter at breast height and tree height growth rhythm,namely Y=0.008A2+0.386A+3.509.Elm relationship between age and DBH growth should be chosen as an elm tree's power function equation and DBH growth rhythm,namely Y=0.814A0.962;Relationship between tree and the tree height growth should be chosen as a willow tree height growth rhythm,power function equation Y=1.165 A0.728 namely;Elm tree diameter at breast height and tree height growth relations should be chosen as a power function equation Tieling elm DBH and tree height growth rhythm,namely Y=1.574 A0.697.Poplar relationship between age and DBH growth should be chosen quadratic equation as DBH growth rhythm of Tieling poplar,namely,Y=0.016A2+0.673A+5.523;Age and tree height growth rhythm should be chosen logarithmic equation as Tieling poplar tree height growth rhythm,namely Y=14.615+10.895 InA.Relationship between the growth of diameter at breast height and tree height should choose logarithmic equation as the Tieling poplar diameter at breast height and tree height growth rhythm,namely Y=17.853+10.9lnA.Willow relationship between age and DBH growth should be chosen quadratic curve equation in Tieling city willow DBH growth rhythm,namely Y=0.06A2+1.328 A-3.078.Relationship between age and DBH growth of pinus tabulaeformis should be chosen as a power function equation Tieling old pinus tabulaeformis and DBH growth rhythm,namely Y=1.919A0.617;Age and tree height growth relationship should choose power function as Tieling pinus tabulaeformis tree height growth rhythm,namely Y=1.416A(?);Diameter at breast height and tree height growth of pinus tabulaeformis relationship should be chosen as a power function equation Tieling pinus tabulaeformis diameter at breast height and tree height growth rhythm,namely Y=1.245A0.798.Japanese larch relationship between age and DBH growth should be chosen using quadratic equation as Tieling Japanese larch DBH growth rhythm,namely y=0.06A2+0.926 A+0.926;Japanese larch age and tree height growth relations should be chosen as a power function equation of Tieling Japanese larch tree height growth rhythm,namely Y=0.371 A1.065;Japanese larch diameter at breast height and tree height growth relations should be chosen as A power function equation of Tieling Japanese larch relationship between diameter at breast height and tree height growth rhythm,namely Y=0.479A 1.175.Through data analysis can fit a better growth rhythm,provide a reference for future forestry work.But because this article selects high quality trees as the research object,so the effect is better.And under the laws of nature,natural factors and growth factors,genetic factors,factors such as human factors can also affect the growth of trees This article selects only as a dominant tree research tree trees with factors such as the growth of a positive law.Tieling city tending cutting volume of 350000 cubic meters,the transformation,the final felling,large number.Can also through the next big data analysis for the influence of natural environment factors such as climate,soil,full of natural forest and forest law of development.In the era of big data,we can fully use the existing forestry information to fitting out of the trees of the ideal development rhythm.Using big data analysis,fitting the multidimensional nature of trees growth rule,find out the factors that affect growth,forecast the future of forestry,forest cultivation and forest lay the foundation.