Analysis Of Land Use Change And Its Driving Force In The North Slope Of Tianshan Economic Zone

With the continuous development of human activities and socio-economic development,the way and degree of land use are changing,and the comprehensive driving force on land use changes also has a growing trend.The economic belt on the northern slope of the Tianshan Mountains is the most economically developed area of Xinjiang in the north of the Tianshan Mountains.It is a key area for the development of the northwestern part of China.However,with the economic development,the contradiction between people and land has slowly emerged.The analysis of land use changes and driving forces in the economic belt on the northern slope of the Tianshan Mountains and the scientific prediction of land use in the future have become the focus of sustainable development of land resources in Xinjiang,and are also the focus of Xinjiang's socio-economic development.The study of the economic belt on the northern slope of the Tianshan Mountains is an effective way to understand and analyze the laws of land use/cover change and driving forces in the economically developed areas north of the Tianshan Mountains in Xinjiang.This article first obtains the area of land-use type required in the 45-seat remote sensing image of the study area;then,the land use dynamic degree,comprehensiveness degree index,and landscape dominance degree are calculated by the relevant models;then the land use dynamic change in the study area The characteristics are analyzed;on the basis of the above analysis,the concept of the comprehensive index of land use change is used to establish a model,and the comprehensive index of land use change in the economic belt of the northern slope of the Tianshan Mountains is obtained.Try to use conventional curve fitting analysis and driving force comprehensive model analysis to study some driving forces that affect land use,and establish a mathematical model between the overall index of land use change and the main driving force factors.In the end,corresponding countermeasures and suggestions are proposed for the sustainable development of land use in the economic zone on the northern slope of the Tianshan Mountains.The results of the study in this article are as follows:(1)Through the remote sensing images of 1996,2006,and 2016,the related pre-processing work was carried out,and the methods of supervised classification and unsupervised classification were used to interpret the image and follow-up map spot processing,finally interpreting it.For the six land types such as cultivated land,grassland,forest land,construction land,water area and unused land,the interpretation accuracy is over 85%,which can meet the needs in the research.(2)From 1996 to 2016,the land use in the study area has undergone drastic and dynamic changes in all aspects.From the perspective of quantitative changes in land use,grassland,water areas,and unused land are continuously decreasing.The use of land changed significantly,and the remaining types of land use showed a growing trend.Judging from the changes in the degree of land use in the study area,the comprehensive index of land use in the study area increased continuously in 1996,2006 and 2016,reflecting the increasing degree of land use in the economic belt on the northern slope of the Tianshan Mountains.The degree of land use in the segment,both the change and the rate of change,is greater than 0.Judging from the landscape change of land use in the study area,during the period from 1996 to 2016,the landscape dominance index of land use continued to decline during the period of the northern slope of the Tianshan Mountains.At the same time,the landscape diversity index showed an upward trend,indicating the landscape advantages.The degree index is negatively correlated with the landscape diversity index.Most of the changes in land use reflecting the economic belt on the northern slope of the Tianshan Mountains are controlled by changes in cultivated land,forest land,and construction land.(3)Using the concept of comprehensive index of land use change,the model was created using the comprehensive land use dynamic degree,land use degree comprehensive index,and land use landscape dominance.From the results of the study,it can be seen that the comprehensive index of land use change in the study area shows an upward trend,indicating that the development of land use by mankind is constantly being enhanced.(4)In view of the fact that the more conventional methods can not exclude some low-relevance factors,using the grey correlation analysis has obtained 12 driving force factors with correlation degree higher than 0.9,indicating that they are related to the comprehensive index of land-use change.The degree is high,and it has a strong influence on the overall level of land use change in the study area.Then,using the principal component analysis method to obtain the results shows that changes in population,economic and scientific and technological development are the main factors to promote changes in land cover in the study area.At last,we tried to use the Backward method of multiple linear regression to extract 12 high-correlation driving factors to 8 and successfully established the mathematical model between the comprehensive index of land-use change and the main driving force factors.(5)Comparing the conventional curve fitting analysis used in this paper with the comprehensive model of the driving force,the research results of this paper are reasonable and feasible,and the comprehensive model of the driving force is more rapid and concise for the extraction of driving force factors and can be used later.The research provides methods.(6)Based on the research of this paper,according to the current land use situation,the development of land use in the study area can be used to control the population,the protection of cultivated land,especially basic farmland,the adjustment of industrial structure,and the intensive use of land.The situation is adjusted to provide a scientific basis for the rational use of land in the future.