我国某些红树植物花粉形态研究及其古环境意义

STUDY ON POLLEN MORPHOLOGY OF SOME MANGROVEIN CNINA AND ITS PALEOENVIRONMENT SIGNIFICANCE

对我国11科11属14种(除红树科和海桑属之外)红树植物花粉形态作了光学显微镜的各种数据测定,并在扫描电镜下观察和摄片研究。这14种红树植物花粉是海榄雌、水芫花、水椰、榄李、红榄李、银叶树、小花老鼠勒、老鼠勒、海漆、杨叶肖瑾、玉蕊、桐花树、尖叶卤蕨、卤蕨。红树植物是热带—亚热带海岸潮间带的一种特有的指示植物,根据沉积物中出现的红树植物花粉种类和数量,可推测海滨红树林的演化、海面升降、海岸线变迁、追溯古海流和沉积物来源。

This paper deals with pollen morphology of 14 species from 11 genera of 11 families (besides Rhizophoraceae and Sonneratia) in China. They were examined and picturetaken under both optical microscope and SEM. Mangrove pollens of 14 species are Avicennia marina, Pemphis acidula, Nypa fruticans, Lumnitzera racemosa, Lumnitzera littorea, Heritiera littoralis, Acanthus ebracteatus, Acanthus ilicifolius, Excoecaria agallocha, Thespesia populnea, Barringtonia racemosa, Aegiceras corniculatum, Acrostichum speciosum and A. aureum. Mangrove plants are special indicative plants existing in certain areas of tropical and subtropical coasts. From the variety and quantity of mangrove pollen discovered in the sediments, this paper inferred the evolution of mangrove plants and changes of sea level and paleoshoreline. Mangrove pollen also provides evidence for tracing paleoocean current and sediment source. In marine geological research, the study on mangrove pollen is also important for exploring paleoenvironment changes and oceancontinent interaction.