花溪区土地利用变化研究

土地是人类社会赖以生存和发展的最基本自然资源。土地利用格局的好坏深刻地影响并决定着一个地区的发展和经济状况。在地理信息系统(GIS)技术与遥感(RS)平台下,以花溪区1973年、1986年、1993年陆地卫星影像和2002年、2007年CBERS影像数据为基础,从土地利用类型、结构和布局阐述了研究区不同时期的土地利用现状,并在此基础上对其5个年份土地利用的变化过程和分布特征进行分析。结果表明:花溪区30多年来土地利用类型中水田、草地、林地面积呈减少的变化比较明显;建筑、旱地、灌木林等面积呈增加的变化较明显。研究成果对花溪区土地资源的合理利用有一定指导意义,为土地管理部门提供决策支持。

Research on the Dynamic Changes of Land Use in Huaxi District,Guiyang

Land is one of the most basic natural resources for survival and development of the mankind. The quality of land-use patterns deeply affects and determines a region's growth and economic conditions. On the platform of Geographical Information System (GIS) and Remote Sensing (RS), based on the Landsat imagery of the Huaxi district in 1973, 1986 and 1993 and the CBERS images in 2002 and 2007, this paper elaborated the land-use status of the study area in different periods from the angle of the land-use types, structure and distribution status. And on this basis, the changing process and distribution features of land use were analyzed in the past five years. The results showed that it was relatively obvious that the area of patty fields, grass land and forest was decreasing while that of construction land, dry cropland and shrub land was increasing. The research results are of significance in guiding the rational utilization of land resources in the Huaxi district, thus providing the land management department with decision support.