摘要
在GIS技术的支持下,利用景观格局分析软件FRAGSTATS3.0对珠江口两岸耕地资源进行景观破碎化定量分析。研究结果表明,两岸耕地资源碎化程度存在明显的区域差异,珠江口东岸高于西岸,深圳最高,番禺耕地地块数量破碎化与珠海耕地地块形状破碎化程度最低;地貌结构是两岸耕地资源破碎化差异的主要内在因素;快速城市化与工业化占用大量耕地资源同时,在一定程度上影响到两岸耕地资源空间分布特征与耕地资源的完整性。
Based on GIS, spatial distribution and fragmentation of cultivated land on the two sides of the Zhujjiang Estuary are analyzed by using landscape ecology principle and method. The results show that the fragmentation is quite different in different administrative regions. It is higher on the east side than that on the west, and the highest in Shenzhen. Fragmentation of patch number in Panyu and that of patch shape in Zhuhai are the lowest. Geomorphological structure is the main intrinsic factor influencing fragmentation of cultivated land. The process of rapid urbanization and man-made factors to a certain extent influences the spatial distribution pattern and integrity of cultivated land resources. The contradiction between demand for regional cultivated land and land resource protection is conspicuous. Attention should be paid to solution of a series of problems because derived from irrational use of cultivated land. And it is very important to maintain the integrity of cultivated land for protection of land resources and ecosystems.
出处
《热带地理》
2005年第2期107-110,共4页
Tropical Geography
基金
广东省自然科学基金(031288)
广东省自然科学基金团队项目(04201163)
关键词
耕地资源
破碎化
珠江口
Cultivated land
Fragmentation
The Zhujiang Estuary
