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首页> 外文期刊>Journal of geographical sciences >Land cover changes in the rural-urban interaction of Xi'an region using Landsat TM/ETM data
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Land cover changes in the rural-urban interaction of Xi'an region using Landsat TM/ETM data

机译：利用Landsat TM / ETM数据分析西安地区城乡互动中的土地覆盖变化

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摘要

Landsat ETM/TM data and an artificial neural network (ANN) were applied to analyse the expansion of the city of Xi'an and land use/cover change of its surrounding area between 2000 and 2003. Supervised classification and normalized difference barren index (NDBI) were used respectively to retrieve its urban boundary. Results showed that the urban area increased by an annual rate of 12.3%, with area expansion from 253.37 km~2 in 2000 to 358.60 km~2 in 2003. Large areas of farmland in the north and southwest were converted into urban construction land. The land use/cover changes of Xi'an were mainly caused by fast development of urban economy, population immigration from countryside, great development of infrastructure such as transportation, and huge demands for urban market. In addition, affected by the government policy of "returning farmland to woodland", some farmland was converted into economic woodland, such as Chinese goosebeery garden, vineyard etc.
机译：应用Landsat ETM / TM数据和人工神经网络（ANN）分析了西安市在2000年至2003年之间的扩张及其周边地区的土地利用/覆盖变化。监督分类和标准差贫瘠指数（NDBI） ）分别用于检索其城市边界。结果表明，城市面积以每年12.3％的速度增长，面积从2000年的253.37 km〜2扩大到2003年的358.60 km〜2。北部和西南部的大片耕地被转化为城市建设用地。西安市的土地利用/覆被变化主要是由于城市经济的快速发展，农村人口的移民，交通等基础设施的巨大发展以及对城市市场的巨大需求所致。另外，在政府“退耕还林”政策的影响下，部分农田被改建为经济林地，如中国鹅肝园，葡萄园等。

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