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引用本文:李新国,江南,王红娟,刘新.近30年来太湖流域湖泊岸线形态动态变化.湖泊科学,2005,17(4):294-298. DOI:10.18307/2005.0402
LI Xinguo,JIANG Nan,WANG Hongjuan,LIU Xin.Dynamic Changes of Lake Shorelines Morphology in the Taihu Basin during the Past 30 Years. J. Lake Sci.2005,17(4):294-298. DOI:10.18307/2005.0402
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近30年来太湖流域湖泊岸线形态动态变化
李新国1,2, 江南1, 王红娟1,2, 刘新1,2
1.中国科学院南京地理与湖泊研究所, 南京 210008;2.中国科学院研究生院, 北京 100039
摘要:
湖泊的岸线特征是表征湖泊形态特征的一项重要内容.本文应用分形理论中的计盒维数,基于岸线长度与面积关系的分形维数及岸线发育系数,对太湖流域主要湖泊的湖泊岸线变化进行了研究.结果表明,分形维数可以更好的对湖泊岸线进行量化描述,太湖流域主要湖泊的岸线具有自相似性;近30年来,太湖流域湖泊的岸线曲折度降低,岸线长度减少,岸线结构趋于单调.
关键词:  分形维数  湖泊岸线  太湖流域  动态变化
DOI:10.18307/2005.0402
分类号:
基金项目:中国科学院知识创新项目(KZCX3-SW-331)和(INF105-SDB-1-22)
Dynamic Changes of Lake Shorelines Morphology in the Taihu Basin during the Past 30 Years
LI Xinguo1,2, JIANG Nan1, WANG Hongjuan1,2, LIU Xin1,2
1.Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P. R. China;2.Graduate School, Chinese Academy of Sciences, Beijing 100039, P. R. China
Abstract:
The characteristic of lake shoreline is one of morphological features of lakes. Based on die two physical properties lake, perimeter and area, applying the shoreline development index, the box-dimension and the fractal dimension based on shoreline length-area, the dynamic Changes of the lake shorelines in Taihu Basin are studied. The results show that fractal dimension quantitatively describes the lake shoreline exactly, and the major lake shorelines take on self-similarity. The sinuosity of shorelines and the perimeters reduced, and the structure of the shorelines became monotonous during the past 30 years.
Key words:  Fractal dimension  lake shoreline  Taihu Basin  dynamic changes
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