摘要
造礁珊瑚骨骼一般呈年周期性带状生长,生长特征变化与周边环境有密切关系,具有重要的环境指示意义。本文依据珊瑚骨骼生长带 X 射线成像原理,利用计算机的数字化和影像处理功能,提出了珊瑚骨骼生长带数字影像分析的方法,能获得较传统方法更高分辨率和精度的珊瑚生长信息。利用该方法提取了海南岛三亚湾滨珊瑚骨骼月尺度的生长密度、生长率的变化序列,并探讨了生长密度、生长率的变化特征及其与主要环境因素的关系。
The growth of hermatypic coral is characteristic of distinct annual skeletal band. The growth characteristics correlate closely with ambient environment and have important indications of environmental variation. According to the X-ray imaging principle of skeletal band, this paper provides image analyzing methods of coral skeletal band by using digitalization and image procedures of computer. The methods can acquire growth information of coral with higher resolution and precision than conventional methods. The series of monthly growth density and growth rate of coralPorites collected in Sanya Bay, Hainan Island, are obtained by this method, and the relationships between growth density and growth rate and main environmental variables are discussed.
出处
《海洋通报》
CAS
CSCD
北大核心
2004年第4期19-24,共6页
Marine Science Bulletin
基金
中国科学院地球环境研究所黄土与第四纪地质国家重点实验室基金项目(SKLLQG0203)
国家自然科学基金项目(49976015)资助
关键词
滨珊瑚
生长密度
生长率
数字影像
coral Porites
growth density
growth rate
digital image
