摘要
基于厦门市集美区1987—2007年5期TM/ETM+遥感影像数据,选取斑块类型水平和景观水平上的景观指数,定量研究了半城市化地区的景观发育过程及其时空动态特征.结果表明:研究区景观格局演变具有快速性、不稳定性、异质性和过渡性特征;1987—2007年间,研究区城市建设用地面积的增长最快,由2.7km2增至29.1km2,年均增长率13%,但仍然不是优势景观,其扩展主要通过侵占农用地和吸纳农村建设用地实现,并呈现出"飞地式"特征和复杂的空间形态;农村建设用地面积增加了2.3倍,年均增长率6.2%,其空间扩展呈现出无序和分散的特征;城市和农村的扩展导致农用地面积减少了42%,并呈破碎化趋势;受城市化影响,半城市化地区的整体景观在快速复杂的转变中趋于破碎化,景观异质性增强.
Based on the 1987-2007 Landsat TM/ETM ＋ images of Jimei District in Xiamen City,and through the analysis of landscape indices on both patch-and landscape scales,this paper quantitatively studied the evolvement and spatiotemporal characteristics of the unique landscape pattern in the coastal peri-urban area.The evolvement of the landscape pattern in the area had the characters of rapid,instable,heterogeneous,and transitional.In 1987-2007,the land area for urban construction increased from 2.7 km2 to 29.1 km2,with an average annual growth rate of 13%,but still was not the predominant landscape.The rapid expansion of urban construction land was mainly through occupying farmland and absorbing rural settlements,which showed the character of＂enclave＂and resulted in a complex space form.In the same period,the land area for rural construction increased by 2.3 times,with an average annual growth rate of 6.2%,and the expansion of the rural construction land had the characters of out-of-order and dispersive.42% of the farmland was depleted by the urban and rural sprawl,resulting in its fragmentation.Under the effects of urbanization,the overall landscape pattern of the peri-urban area tended to be fragmentized and heterogeneous,because of the rapid and complicated landscape change.
出处
《应用生态学报》
CAS
CSCD
北大核心
2010年第4期856-862,共7页
Chinese Journal of Applied Ecology
基金
国家自然科学基金项目(40701059)
厦门市科技计划项目(3502Z20081070)
中国科学院知识创新工程重要方向项目(KZCX2-YW-450)资助
关键词
半城市化地区
景观格局
城市化
集美区
peri-urban area
landscape pattern
urbanization
Jimei District.
