Study On The Regional Spatial-temporal Regularities Of The Landscape Pattern Change Of Rural Settlements In Chang'an Section Of The Piedmont Of North Qinling Mountains

The contradiction between protection and development of the the piedmont of north Qinling Mountains is acute.How to make rational use of the land resources on the piedmont of north Qinling Mountains and to carry out more reasonable settlements planning has become an urgent problem to be explored in the spatial planning research of the piedmont of north Qinling Mountains.In response to this problem,existing research focuses on landscape pattern dynamics in short time scales,ecological protection and restoration of vegetation or hydrology and other factors,and rarely involves the study of landscape pattern on long time scales.This paper believes that the landscape pattern change of rural settlements in the piedmont of north Qinling Mountains is caused by different influencing factors and gradually changing under different effects.Therefore,taking Chang'an section of the piedmont of north Qinling Mountains as the research object,it explores the causes and impacts of the landscape pattern change of rural settlements.Through the analysis of causality,the characteristics of the landscape pattern change of rural settlements and the regional spatial-temporal regularities can be got,in order to use these laws to get a settlements space strategy that can not only meet the development of various needs of the generation,but also not destroy the ecological environment of the piedmont of north Qinling Mountains.The main contents of this study are as follows:(1)The theoretical basis and analysis framework are proposed.First,the concepts of "landscape pattern change" and "rural settlements" are analyzed;second,based on the "pattern-process" theory of landscape ecology and historical geography,and "historical restoration" theory,the "driving force-state-response" model puts forward the analysis framework and technical route to study the landscape pattern change of rural settlements in Chang'an section of the piedmont of north Qinling Mountains(Chapter 2);(2)Historical changes of settlements landscape in Chang'an section of the piedmont of north Qinling Mountains.This paper describes the different settlements landscape pattern formed in different stages of Chang'an section of the piedmont of north Qinling Mountains,which are divided into six periods according to their spatial patterns,and summarizes the characteristics of the landscape pattern change of rural settlements(Chapter 3);(3)The causal analysis of the landscape pattern change of rural settlements in Chang'an section of the piedmont of north Qinling Mountains.On the basis of dividing the time stage,it finds that the reason of forming the landscape pattern change of rural settlements,and the main influencing factors of the landscape pattern change and the law of change between the impact of the settlement landscape pattern(Chapter 4);(4)The impact of the landscape pattern change of rural settlements on the ecological environment in Chang'an section of the piedmont of north Qinling Mountains.Based on the division of time periods,the impact of the landscape pattern change of rural settlements at different stages on the ecological environment changes in Chang'an section of the piedmont of north Qinling Mountains is analyzed,and the relationship between the two is analyzed(Chapter 5);(5)It summarizes the previous rules of change,proposes a theoretical model of the landscape pattern change of rural settlements,analyzes the corresponding change trends,predicts the current environmental factors that will affect the ecological environment change scenarios of the current settlements landscape pattern.According to the prediction results and the possible impact of the historical settlements landscape pattern changes,it proposes the settlements spatial strategy of the Chang'an section of the piedmont of north Qinling Mountains(Chapter 6).The main conclusions of this paper are:(1)It summarizes qualitative and quantitative restoration of the landscape pattern change of rural settlements in Chang'an section of the piedmont of north Qinling Mountains,and explores the characteristics of the landscape pattern change of rural settlements;(2)Based on a complete set of long-term historical analysis planning research methods,it reveals the regional spatial-temporal regularities of the settlements landscape patterns in Chang'an section of the piedmont of north Qinling Mountains,and a theoretical model for the landscape pattern change of rural settlements;(3)Based on the law,the change trend of the landscape pattern change of rural settlements in Chang'an section of the piedmont of north Qinling Mountains is proposed,and a corresponding space strategy is proposed.It provides theoretical support and development suggestions for the future settlements spatial planning of Chang'an district government.