摘要
根据景观生态学原理,在地理信息系统(GIS)的支持下,采用多样性指数、斑块密度指数、形状指数等景观指标,分析了广州市萝岗区1995年至2003年的景观动态变化。结果表明:①林地的景观基质地位没变,萝岗区的景观格局仍由林地、园地和耕地控制,但人工干扰景观正逐步蚕食自然景观;②萝岗区正处于城市化进程中,随着经济的发展,人类对景观的干扰越来越严重,景观越来越破碎,形状变得更加复杂,多样性和均匀度呈上升发展趋势;③景观斑块类型不停相互转化,林地、园地和推平未利用地不断转化为城市建设用地、乡镇居民点和基塘水库。
The paper studied the landscape change in LuoGang Section of Guangzhou from 1995 to 2003 according to the fundamentals of landscape ecology. System （GIS） is used to calculate the landscape indexes, including diversity, patch density and landscape shape index. The results show that： （1）The studied area consisted af three landscape elements： forestland, orchard land and cultivated land. Forestland is still landscape matrix, but human disturbance is increased. （2）With economic development, the landscape fragmentstion, diversity and evenness kept slow increasing. （3） Landscape patch changed form to each other. Forestland, orchard land and planned urban area were transformed to construction area, residential area and lake.
出处
《茂名学院学报》
2007年第6期20-23,共4页
Journal of Maoming College
基金
国家杰出青年基金项目(40225004)
广东省自然科学基金博士启动项目(4300033)
广东省自然科学基金重点项目(06105518)
