摘要
以长江三角洲半城市化（Desakota）典型区——吴江市为研究区,利用研究区1978~2010年六期Landsat MSS/TM序列卫星影像,获取土地利用/覆被变化信息,计算分析吴江市土地利用/覆被变化在不同历史时期的变化量、变化率及空间变化格局。结果表明：1从土地利用结构上看,吴江市土地结构以耕地和水域为主,但城镇建设用地占比逐步增加,农村建设用地相对维持不变。2从变化速率看,2000~2004年城镇建设用地的变化速率最大,达到49.14%。3从空间变化格局来看,呈现一种非集聚性的半城市化发展态势,在沿上海、浙江、苏州、太湖的乡镇发展极为速度。
In this research,an integrated research method studied in Wujiang,Yangtze Delta Desakota areas is demonstrated to achieve land use and land cover changes. Series of Landsat MSS / TM imagery for from 1978- 2010 are used to classified and detected.The land use / land cover change amount,change rate and spatial- temporal pattern in different historical periods can be obtained. The results showed that：（ 1） In land use structure,the cropland and water are the main agricultural land for Wujiang,but urban construction land increase gradually and sharply,and the rural construction land is relatively unchanged;（ 2） In the urban growth,the urban construction land is the most significant between 2000 and 2004,the growth rate is 49. 14% per year. Such a sharp increase have been partly controlled after 2004,but because of the rapid industrial development and the great real estate development,the growth speed of urban construction land is still very fast.（ 3） In the spatial pattern,Wujiang present a non- agglomeration semi- urbanization development trend,especially ＂ Siyan- style＂ development pattern of urban construction,the development speed of the areas along Shanghai,Zhejiang,Suzhou and Taihu are relative fast.
出处
《测绘与空间地理信息》
2015年第12期93-96,共4页
Geomatics & Spatial Information Technology
