摘要
以新垌镇为例,运用景观生态学的基本理论与方法,在地理信息系统的支持下,对粤西低山丘陵区景观演变及其驱动力进行了研究.结果表明:20年间新垌镇景观格局发生了显著变化,景观总斑块数减少,均匀度升高,优势度降低,分离度降低,破碎度降低;景观组分的转移趋势是由耕地、林地向园地、居民点及工矿用地转移;景观演变的驱动力主要是人口因素、技术因素、政策因素等.
Using the basic theory and method of landscape ecology on a case study of Xingdong town, the present paper studied the landscape pattern dynamic change and its driving forces in Hills in the Western of Gangdong, with the help of GIS. The results indicated that the landscape pattern of Xingdong town has changed prominently during the recent 20 years, the total number of patch decreases, landscape evenness index increases, landscape dominance index fall, separation and fragmentation decrease ; artificial intervene factors. The tendencies of conversion of landscape element were from cultivated land and forest-lkand to orchard land and resident land. Major driving forces of landscape dynamic change are population, technique and policy etc.
出处
《湖南师范大学自然科学学报》
EI
CAS
北大核心
2005年第2期84-89,共6页
Journal of Natural Science of Hunan Normal University
基金
广东省教育厅自然科学基金资助项目(Z02051)
关键词
景观演变
驱动力
新垌镇
Forestry
Geographic information systems
Geology
Public policy
