基于地物光谱特征,采用光谱角分类技术将主要地物覆被类型进行了分离,并依据经验知识构建了各用地类型的专题信息模型,提取了安徽省土地利用信息,通过分析2000、2005和2010年3期遥感调查结果,得到了安徽省土地利用动态变化及不同土地利用类型之间的转换情况。结果表明:安徽省的土地利用面积以耕地和林地为主,近10年来林地面积持续增加,而建设用地扩建现象严重,导致耕地被大量占用。
Abstract
The spectral features of each land use type was analyzed, and the spectral angle mapper was used to separate the main cover types, and the thematic information models of each land use type were constructed based on experience and knowledge. Remote sensing information extraction technology based on the knowledge wasused on the land use information extraction in Anhui province. Land use information of Anhui province was extracted automatically using a computer. By analyzing the three remote sensing survey results of the year of 2000, 2005 and 2010, the information of the land use dynamic changes and conversions between different land use types was obtained. The results showed that the farmland and forest land were the main land use types in Anhui province, and the forest area continued to increase, but the farmland area decreased because of the construction land expansion.
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基金
收稿日期:2013-01-02 修回日期:2013-04-21
基金项目:安徽省自然科学基金项目(1208085QD73); 安徽省高校省级自然科学研究项目(KJ2013B189, KJ2012B125); 滁州学院校级科研启动基金项目(2012qd18)
第一作者:吴见,讲师,博士。E-mail: xiangfeidewujian@126.com。
引文格式:吴见,侯功兰, 刘民士,等. 安徽省土地利用十年动态变化遥感监测[J]. 南京林业大学学报:自然科学版,2014,
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