摘要
以珠江三角洲东部常平地区为例 ,探讨了景观边界特征对景观动态变化过程的指示意义 .研究结果表明 :边界的数量和累积长度可以用于描述不同斑块类型彼此之间界面关系的变化情况以及景观中优势边界类型的结构特征 ,从而为进一步跨越界面的生态过程分析提供了可能 ;边界的平均凹凸高度和凹凸度可以在一定程度上指示界面两边不同景观组分的扩张和收缩关系 ;斑块面积增减过程中形状特征和平均边界长度的复合变化影响导致大型城镇和农业斑块面积和边界数量之间呈简单的线性关系 .不过 ,一些边界结构变化特征还无法给出合理的动态解释 。
In this paper, we take Changping region in the eastern part of Zhujiang Delta as working area, to study the indicator significance of landscape boundary characteristics to landscape changing process. The results indicate that the number and cumulative length of different boundaries can be used to express the changing of interface relations for different patches and the structure of dominant boundaries, which can be used for further analysis of ecological processes across the boundaries. Average degree and height of concave convex boundaries can be an indicator for the expanding and contracting process of the two patches beside the boundary. Average boundary length and patch shape index have a multiple impact which can make the patch area and boundary number a very good linear relation during the expanding and contracting process. But some boundary structure changing can not be explicated reasonably in this study, which need further analysis to clarify them.
出处
《应用基础与工程科学学报》
EI
CSCD
2000年第2期126-133,共8页
Journal of Basic Science and Engineering
基金
国家自然科学基金资助项目! ( 4 98710 70 )
