Study On The Evolution Of Forest Settlements In Pixian County Of Chengdu Based On GIS(2006-2016)

Rural settlement is the most important part of the rural area.Its scale is much smaller than that of urban settlements.Its form is also changeable and complex,its quantity is extremely large,and its historical and cultural connotation is profound.It has important research significance.Among them,Linpan settlement is a rural settlement with obvious geographical characteristics in the rural settlements.It is xwidely built in Sichuan.Linpan settlement consists of houses,trees and trees,fields and other elements,with a good landscape system.Its number is more uniform,according to local conditions,and its shape is also free and changeable.With the construction and development of the city,the forest settlement has also evolved.At present,the domestic attention to the forest plate settlement is not enough,and the research on the evolution of the forest plate settlement is not in-depth enough.As a result,the forest plate settlement has been destroyed in large areas and has not been well developed.Therefore,the study of the evolution of the settlement with the forest plate has become particularly important and urgent.This has important research significance for future rural construction,traditional cultural preservation,and human settlement environmental values.Taking the forest plate settlement in Pixian County in 2006 and 2016 as the research object,this paper uses ARCGIS software to analyze the evolution of the number,area,etc.,and conducts statistics and research on the shape index of the forest plate settlement in two periods of time.Combined with the German GDE MV2 30M resolution digital elevation data,the terrain database of Pixian County was generated to study the relationship between the evolution of the forest plate settlement and the elevation,slope,and slope direction of the terrain.Using FRAGSTATS software to calculate the town index.The establishment of three levels of forest plate settlement database,for the future evolution of forest plate settlement research to provide certain research materials and methods,and reflect its innovation.This article consists of five chapters.The first chapter is the introduction.The second chapter mainly analyzes the evolution of the overall forest plate settlement in Pixian County from the macro level,including the evolution relationship between distribution characteristics and quantity,and the water system and terrain environment.The third chapter analyzes the relationship between the evolution of Linpan settlement and the demographic evolution in Pixian County from the perspective of Zhongguan,the evolution of the density of Linpan settlement,the evolution of the adjacent index,the degree of convergence,and the fragmentation index.The fourth chapter studies the evolution of the area of the forest plate settlement from the microscopic level,including the evolution of the number of buildings,the evolution of the shape index,the elongation index,and the fractal dimension.Chapter 5 is the conclusion and summarizes the whole text.