摘要
利用1991、2001、2008年3期LandsatTM/ETM+遥感影像数据,采用面向对象技术对3期影像数据进行分类,利用土地利用面积变化率公式获取研究区土地利用时间序列变化规律,并且在GIS中通过空间叠加分析取得研究区土地利用转移矩阵进而对其空间转化特征进行分析。结果表明:1991～2008年,海口市滨海旅游区土地利用转化量主要发生在建设用地、耕地、未利用地和林地之间,水域和湿地转化不明显。在时间上表现为建设用地和水域面积增加,且建设用地增幅最为明显,耕地、未利用地、有林地和湿地面积减少,耕地面积减少最多;在空间上表现为各种用用地类型的转化集中在近海岸地带,转化方向主要是耕地、有林地和未利用地转化为建设用地。
This paper classifies the Landsat TM/ETM＋ remote sensing image data of 1991,2001 and 2008 according to object-oriented technology,then uses the formulas about change rate of land use area to obtain the change law of land use time series,and achieves land use transition matrix of the study area through spatial overlay analysis in the GIS.The results show that：In the nearly 18 years,the inversion quantity of land use of the coastal tourist areas in Haikou City conversion occurs mainly among built-land,farmland,unutilized land and forested-land,the conversion of waters and wetlands is not obvious.In time domain,the construction land and water area increase,and built-land increases most obviously,farmland,unutilized land,forested-land and wetland area decrease,farmland area reduces greatest;in space domain,the conversion of various land types mainly happens near coastal areas with the conversion direction from farmland and forested-land,unutilized land into built-land.
出处
《安徽农业科学》
CAS
北大核心
2010年第25期14025-14029,共5页
Journal of Anhui Agricultural Sciences
基金
海南师范大学重点学科项目
海南省教育厅项目(Hjkj2008-39)
海南省普通高等学校研究生创新科研课题项目(Hxwsy2008-24)
关键词
地理信息系统(GIS)
土地利用格局
时空变化
海口市滨海旅游区
Coastal tourist areas in Haikou City
GIS
Land use pattern
Spatial-temporal changes
The Coastal Rosorts of Haikou City
