南沙珊瑚环礁的遥感复合信息熵与类型
The remote sensing composite information entropy and types of Nasha coral reef atolls
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摘要: 基于南沙群岛珊瑚环礁发育指数为多指标的观点,将测度出的多项相关因子的遥感复合信息数据,细分作N1,N2,…,N10个地理事件,进行了环礁信息熵分析。表征了烟值大小与干出环礁发育指数密切相关的因子,它们依次为礁顶面积(0.319)、渴湖面积(0.324)、环礁开放度(0.336)、走向(0.551)等。就此,对干出环礁发育指数提出一个新的表达式,用以划分南沙环礁发育的开放性类型。Abstract: In the viewpoint that the oaral reef atolls' growth index of the Nanshe Islands is influenced by many factors,the measured remote sensing composite information including scmae mutually related factoes is divided inw 10 geographic events as N1,N2,…,N10,and the analysis of the atolls' information entropy is made.From the value of the entropy,the closed related factors with the index of the emerged atolls are shown.In proper order,the factors are reef top's area (0.319),lagoon's area (0.324),open-degree of atoll (0.336),trend of atoll (0.551).On the basis cd this work,a new description function of the emerged atoll growth index is proposed.This function can be used to identify the open type of Nansha atoll growth.
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Key words:
- Nanaha Islands /
- remote sensing information /
- information entropy /
- growth index /
- atoll’s types
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钟晋梁,陈欣树,张乔民等.南沙群岛珊瑚礁地貌研究.北京:科学出版社,1996.44~64 Liu Baoyin,Wang Yanfeng.The remote sensing composite information of Nansha reef's closed atoll and the model of its spatial structure evolution——I.Acta Oceanologica Sinica,1997,16(1):57~70 尼贝肯J W著.海洋生物学——生态学探讨.林光恒,李和平译.北京:海洋出版社,1991.235~254 赵焕庭.南沙群岛自然地理.北京:科学出版社,1996,180~199 Andre Guilcher.Coral Reef Geomorphology.New York:John Wiley & sons Ltd.,1988.12~99 刘宝银,郝庆祥,王岩峰.南沙珊瑚岛礁空间结构的遥感信息树模型研究.海洋学报,1997,19(5):47~55 牛文元.理论地理学.北京:商务印书馆,1992,72~80
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