基于卫星遥感数据的肇庆新区土地动态监测及驱动力分析

Dynamic Monitoring and Driving Forces of Land in Zhaoqing New District Based on Satellite Remote Sensing Data

摘要: 肇庆新区是肇庆市东北部的一个新开发区，近30年来，该区域土地利用情况发生了很大的变化。作者以美国陆地卫星1990年、1995年、2000年、2005年、2010年和2015年的遥感影像为主要数据源，通过监督分类技术获得了各时相的主要地物分类专题图。在此基础上，统计地物面积，分析变化规律，探讨引起变化的主要原因。结果表明，20世纪90年代以来，肇庆新区绿地面积总体呈减少趋势，同时耕地和菜地面积也有所下降，这主要是因为城市建设用地的迅速增加占用了较多的土地；而水域出现了持续增加，主要是人们对水产品需求的增加导致的鱼塘的增加，它在一定程度上反映了当地经济正在快速发展，人们的饮食结构也在不断发生变化，不再满足仅仅依靠粮食维持温饱的生活状态。

Abstract: Zhaoqing New District is a new development zone in the northeast of Zhaoqing City. In the past 30 years, the land use situation has changed greatly. The author uses the remote sensing image of Landsat satellite in 1990, 1995, 2000, 2005, 2010 and 2015 as the main data source, and obtains the main feature classification map of each phase by the technology of supervision classification. On this basis, the statistical area of land and analysis of changes in the law have been done to explore the main causes of change. The results show that since the 1990s, the green area of Zhaoqing New Area has been decreasing, and the areas of cultivated land and vegetable land have also decreased. This is mainly due to the rapid increase of urban construction land and the occupation of more land. The increase is mainly due to the increase in aquatic products caused by the increase in demand for aquatic products. It reflects to some extent that the local economy is developing rapidly and that people’s eating structure is constantly changing and no longer depends on food and food living condition.