重庆市长寿区土地利用格局及动态变化分析  

Land Use and Dynamic Change Analysis in Changshou District of Chongqing

作　　者：彭月[1] 魏虹[2] 王建力[1] 

机构地区：[1]西南大学地理科学学院 [2]西南大学生命科学学院

出　　处：《西南师范大学学报（自然科学版）》2007年第5期180-184,共5页Journal of Southwest China Normal University(Natural Science Edition)

基　　金：中国博士后科学基金资助项目(2003033483);重庆市院士基金专项资助项目(2003-7835)

摘　　要：利用景观生态学原理,基于RS和GIS技术,对研究区1995年和2001年土地利用格局进行分析,结合景观格局指数和景观动态模型分析了研究区土地利用变化趋势及速率.结果表明:①林地、水田和旱地构成研究区内优势景观,1995-2001年耕地减少,城市用地增加.②山地旱地破碎化程度最高;有林地和丘陵水田破碎度较小,景观较完整;③湖泊和农村居民点斑块分布较散,同类间干扰小.城镇用地斑块距离增大,城镇扩张明显.④2001年景观异质性比1995年较高.⑤水域、城镇用地和耕地变化速率大,整体土地利用变化较小.Based on the theories of landscape ecology and with help of RS and GIS, the land use patterns of Changshou in 1995 and 2001 were studied. The results show ： （1）Forest, paddy field and dry land were the dominant landscape types in study region. The area of cultivated land decrease rapidly and the city area increased from 1995 to 2001. （2）The fragmentation index of mountain dry land were the highest, while the forest land and hill paddy field reversed, having a more integrated landscape. （3）The mean nearest-neighbor distance between lake and country residential area was relatively high while these types had little disturbance. However, the town area was increasing which meant that the town area expanded with the economy exploitation. （4）The heterogeneity of landscape in 2001 was higher than that in 1995. （5）Water area, town area and plowland changed a lot with the plowland dropping, but the landscape of Changshou changed slowly.

关 键 词：重庆市 长寿区 土地利用 景观格局 动态变化 

分 类 号：F301[经济管理—产业经济]