Analysis of Spatial-Temporal Pattern Characteristics of Economic Development in Four Prefectures of Southern Xinjiang based on Integration of Nightlight Remote Sensing Data
In the'post-poverty era'of 2020,the four prefectures in southern Xinjiang are still underdeveloped areas in the development pattern of the whole country and in Xinjiang.Therefore,it is of great significance to car-ry out long-term economic measurement and development analysis of the four prefectures in southern Xinjiang.However,the traditional measurement methods using socio-economic data have great limitations.The nightlight remote sensing data is used to objectively invert the economic development characteristics of the poverty-strick-en area.This paper selects four prefectures of southern Xinjiang as the study area,and corrects NPP/VIIRS and DMSP/OLS data for noise and supersaturation respectively,based on the integration of two kinds of night light data,the correlation between the total night light amount of 33 counties(cities)and the secondary and tertiary industries was used,the spatial and temporal pattern of economic development in the four regions of southern Xinjiang from 2005 to 2020 was studied by using standard deviation ellipse and Molain index.The results show that:(1)From 2005 to 2020,the economic center of gravity moved to the northwest.The total economy is dominated by the northeast-southwest direction,the economic development trend is more and more concentrat-ed and contiguous.(2)There has been a high spatial autocorrelation and aggregation during the study period,mainly showing H-H and L-L gathering areas.The higher the economic level of the region,the more prone to aggregation.(3)The probability of occurrence of cold spots and hot spots in regional economic development in the four prefectures of southern Xinjiang has obvious local characteristics.The coordinated economic develop-ment among the four regions of southern Xinjiang should be the policy focus.
NETL
NSTL
万方数据
维普
