运用景观生态学与统计学方法对天津1987~2006年土地生态系统的动态变化进行研究,分析天津近20年土地生态系统多样性的演变规律及其驱动力.结果显示:20年间,天津地区土地生态系统由相对多样演变为相对简单;土地生态系统变化中影响较大的类型是建设用地、耕地和未利用土地.土地生态系统多样性演变的驱动力为:城镇化进程加快、人口增长、经济发展、产业结构调整.
Analyzes dynamic change in land ecosystem by using landscape ecology and statistical methods in Tianjin during 1987—2006.Analyzing the change of land ecosystem diversity and driving forces over the past 20 years.The result shows that:During the 20 years,land ecosystem diversity had changed from more diverse to less diverse in Tianjin.Changes in land ecosystems have a greater impact on the type of construction land,arable land and unused land.The driving forces of land ecosystem diversity are urbanization,population growth,economic development,and industrial structure adjustment.