Forest Landscape Pattern Analysis And Management Strategy Research Of Xinjiashan Forestry Region

The analysis of the forest landscape pattern can scientifically and rationally manage and manage the forest landscape.This study takes the Xinjiashan forest area in Shaanxi Province as the research area,based on SPOT5 satellite remote sensing images and forest resource survey data,with the support of software such as remote sensing,geographic information system and Fragstats.The forest resources in the Xinjiashan forest area have been classified as forest landscapes.The landscape indicators such as Patch Size,Diversity Index,Shape Index,Proportion of Like Adjacency,Fractal Dimension Index,and Landscape fragmentation were analyzed to analyze the forest landscape pattern in Xinjiashan forest area,and the main component analysis method was used to classify and evaluate the forest landscape in order to be able to have a deeper understanding of the current status of the forest landscape in the study area.We put forward perfect suggestions for the existing forest management strategy on this basis,which makes the protection of forest resources more efficient and the function of forest ecological services play better.The research results are as follows:1.The Xinjiashan forest landscape is divided into 8 types of landscape elements,which are pure Forests,mixed forests,nursery fields,bamboo forests,shrubs,sparse forests,suitable forest land and other forest land.According to the dominant tree species,it can be divided into 9 types of landscape elements including betula,quercus,pinus armandii,picea asperata,other hard broad-type,abies fabri,salix babylonica,pinus tabuliformis,larix gmelinii.Among them,mixed forest land and pure forest land are the main land types that constitute the forest landscape,and quercus and betula are the dominant tree species in the forest landscape of research area.The patch area and patch circumference of mixed forest lands occupy an absolute dominant position in the entire forest landscape component.Pure forest is far ahead of the number of patches and patch density.The patch area only lags behind mixed forest land,indicating that mixed forest land and pure forest land constitute the main body of the forest landscape in Xinjiashan forest area.Pure forest land is more seriously affected by man-made interference,its patch density ratio is 3.4363,and the degree of landscape fragmentation and landscape heterogeneity are at a high level.The bamboo forest land is less disturbed by humans,so its landscape fragmentation is lower,while the shape index and fractal dimension of sparse forest land and nursery land arelower,indicating that its landscape shape is regular,which is consistent with the actual situation.From a landscape perspective,the forest landscape heterogeneity in the Xinjiashan forest area is at a relatively low level.Among them,the Shannon Diversity Index(SHDI)and Shannon Uniformity Index(SHEI)are 0.8578 and 0.4125,respectively,while the Diversity Index is 0.8578,It shows that the forest landscape types in Xinjiashan forest area are very rich,the proportions of different landscape types are very different,the diversity is not high,and there are many dominant types.2.We selected 9 indicators such as Patch Density Index,Edge Density Index,Shape Index,Aggregation Index,Polymerization Degree,Proportion of Like Adjacency,Fractal Dimension Index,Maximum Patch Index and the Proportion of Landscape area occupied by patches for principal component analysis,and cluster analysis to divide the landscape within the jurisdiction of Xinjiashan forest area into three categories,and evaluate them.The first type of mixed forest land has an absolute advantage and has a greater contribution;the second type of pure forest land also has a greater contribution to the stability of the region;the three types of bamboo forests,shrub land and other landscape types are small in size and scattered in the forest landscape.3.This study combined with the current situation of forest landscape pattern in Xinjiashan forest area,taking landscape ecology theory and forest landscape management and management as the main theoretical basis and guidance method,respectively analyzed from the aspects of patch and landscape heterogeneity,and put forward corresponding optimization and management strategies and methods.On the basis of adapting to local conditions and giving priority to ecological protection,while optimizing the landscape pattern of Xinjiashan forest area,it is also necessary to maximize economic benefits,ecological civilization construction,and comprehensive benefits of social development.We propose the following optimization schemes: strengthen the tending management of young and middle-aged forests and promote the growth of trees;adjust the tree species structure,increase the proportion of coniferous forests,strengthen forest management and protection,and ensure the safety of forest resources;tap the advantages of ecotourism and establish a comprehensive forestry information management platform.In order to promote the modern development of green industry,through modern scientific means to promote the visualization and information management of green industry,to achieve the purpose of comprehensively improving the forest landscape resource protection system.