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OALib Journal期刊
ISSN: 2333-9721
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南海三亚湾鹿回头海域风信子鹿角珊瑚反射率分析
Keywords: 三亚,风信子鹿角珊瑚,反射率分析
Abstract:
？珊瑚礁反射率特征识别工作的开展,将促进遥感技术在珊瑚礁监测与管理中的应用。国外已有学者对特定区域不同珊瑚礁底质反射率进行识别分类,而我国珊瑚礁反射率特征研究尚未见诸报道,亟须相关研究来弥补这一空白。文章以南海三亚湾鹿回头海域常见风信子鹿角珊瑚acroporahyacinthus为主要研究对象,利用光谱仪测量其反射率。分析发现健康风信子鹿角珊瑚反射率在575、605、650nm处出现特征波峰;死亡风信子鹿角珊瑚反射率明显高于健康风信子鹿角珊瑚反射率。利用大型多元统计软件primer6对健康风信子鹿角珊瑚、死亡风信子鹿角珊瑚、珊瑚礁底砂进行bray-curtis相似聚类(cluster)分析,结果显示,在80%相似水平上可以对其进行区分。一阶导数分析表明健康与死亡风信子鹿角珊瑚敏感波段为490~560nm。
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