Environmental Explanations And Applications For Spatial Distribution Of Constructive Species On Mount Tai Based On Remote Sensing

As one of the important components of Mount Tai's natural heritage,forest vegetation plays was an extremely important role in maintaining the natural landscape of Mount Tai and the ecological balance of Mount Tai.The spatial distribution of vegetation varies greatly due to the influence of various environmental factors.Environmental factors mainly included topographic factors,soil factors,climate,and biological factors.In recent years,with the development of remote sensing technology,it had provided a more comprehensive and quick way to obtain various environmental factors and the overall distribution of tree species.Based on the hot topic of the relationship between vegetation types and environmental factors,this paper uses remote sensing technology to analyze the vegetation of Mount Tai,and explores the main tree species(Pinus tabuliformis Carr.;Platycladus orientalis(L.)Franco;Quercus acutissima Carruth.;Robinia pseudoacacia Linn.)and altitude,slope.The relationship between the five environmental factors of slope direction,surface temperature and humidity,the environmental factors were divided according to a certain gradient range,and the optimal growth of the main tree species in Mountain Tai is determined by referring to the ecological amplitude theory in ecology.The scope of the environment and the identification of suitable species for each tree species,this study aimed to reveal the spatial distribution characteristics of the main tree species in Mount Tai,provide a scientific explanation for the growth environment of tree species,and provide a reference for forest management and renewal in the study area.The main research contents and results are as follows:(1)The relationship between the topographic factor and the spatial distribution of the main building species indicates that the suitable elevation range of Pinus tabuliformis Carr.was 645.64~915.66 meters,and the suitable growth slope was 20-28 degrees.The suitable growth slope was mainly concentrated in the shade.The slopes were distributed in all other slope directions;the suitable elevation range of Platycladus orientalis(L.)Franco was 380.61~550.55 meters,and the suitable growth slope was 18~25 degrees.The suitable slope direction was mainly concentrated in the east,southeast and southwest directions.The optimum range for the growth of Quercus acutissima Carruth.was 552.48~757.81 meters,and the suitable growth slope was 19~26 degrees.The suitable growth slope was mainly concentrated in the southeast and south directions.The suitable elevation range of the Robinia pseudoacacia Linn.was 624.83~771.71 meters.The slope of suitable growth was 18~26 degrees,and the suitable slope direction was mainly concentrated in the southeast and southward directions.(2)Analysis of the relationship between the spatial distribution of the main tree species and the surface temperature,and the maximum growth temperature range and the maximum,minimum and average data of the monthly temperature of the tree species in the study area.Taking January and July as an example,the optimum temperature range for Pinus tabuliformis Carr.in January was-10.03~-5.78 °C,and the optimum temperature range for Platycladus orientalis(L.)Franco was-4.78~-2.13 °C.The optimum temperature range for Quercus acutissima Carruth.was-5.54~-2.93 °C,the optimum temperature range of Robinia pseudoacacia Linn.was-6.22~-3.48 °C;the optimum temperature range of Pinus tabuliformis Carr.in July was 24.68~26.06 °C,and the optimum temperature range of Platycladus orientalis(L.)Franco was 26.68~27.60 °C,and the optimum temperature range of Quercus acutissima Carruth.was 25.04~26.67 °C,and the optimal temperature range of Robinia pseudoacacia Linn.was 24.92~25.87 °C.(3)Analysis of the relationship between the spatial distribution of main tree species and the temperature and vegetation drought index,and the maximum,minimum,average range of TVDI in the study area and the TVDI suitable for different tree species in each month were obtained.Taking January and July as an example,the optimum TVDI range for Pinus tabuliformis Carr.in January is 0.33~0.50,the optimum TVDI range for Platycladus orientalis(L.)Franco was 0.58~0.69,and the optimal TVDI interval for Quercus acutissima Carruth.was 0.47~0.58.The most suitable TVDI range for Robinia pseudoacacia Linn.was 0.45~0.55;the optimum TVDI range of Pinus tabuliformis Carr.in July was 0.13~0.15,the optimum TVDI range of Platycladus orientalis(L.)Franco was 0.18~0.19,the optimum TVDI range for Quercus acutissima Carruth.is 0.12~0.20,and the optimal TVDI range of Robinia pseudoacacia Linn.was 0.09~0.15.(4)The suitable planting areas of four tree species were identified,and the most suitable species range of Pinus tabuliformis Carr.was obtained.And the second most suitable planting areas was Quercus acutissima Carruth.,the smallest suitable planting areas was Platycladus orientalis(L.)Franco.And 15 suitable breeding areas suitable for different tree species were obtained.Among them,the suitable planting areas of Pinus tabuliformis Carr.and Platycladus orientalis(L.)Franco and the suitable planting areas of Pinus tabuliformis Carr.,Quercus acutissima Carruth.and Robinia pseudoacacia Linn.were widely distributed throughout the whole study area.