Research on Change in Use Of Land As Well As Driving Forces Within Xi'an Using Landsat Remote Sensing Images

Abstract

As studies regarding global environmental change and development have intensified on observation techniques on the ground, changes in use of land studies have become the main method for studying urban and regional development and change. Xi'an, the biggest city in northwest China, has experienced significant alternations in its urban landscape due to its economic development. This research examines the changes in use of land in Xi'an over three periods (2010, 2015, and 2020) by analyzing Landsat satellite images and via satellite-based classification methods, as well as geographic information system spatial assessment methods. The research identifies the spatial as well as temporal features of changes in use of land in Xi'an and their driving factors. The findings reveal a decline in land for agriculture region from 2010 to 2020. During this period, construction land has grown every year, primarily cutting down on land for agriculture. Moreover, the grassland, area for water, and non-used land have shown an overall fluctuating increase. For the period 2015-2020, a use of land Dynamic Index for Comprehensive use of land has been developed, which is much greater than for the 2010-2015 period, with the largest single use of land dynamics index being non-used land. The main drivers of change in land for construction region are construction output, gross industrial product, local fiscal expenditure, gross product, and gross secondary sector. In terms of land for agriculture, the gross primary sector, the number of rural residents, and the number of urban residents are the main drivers of change.