发菜的生物学特性及资源保护

本文论述了发菜的外部形态、内部结构及生长繁殖方式等生物学特性，并探讨了发菜的适应性。研究结果表明，发菜具有典型旱生植物的生理特性和结构特征，耐干旱、耐炙热、耐严寒、耐贫瘠、嗜阳光、嗜盐碱，而不耐强盐碱和长期湿期环境。另外还分析了发菜资源面临枯竭的原因，并对其保护提出了建议。

THE BIOLOGICAL CHARACTERISTICS AND PROTECTION OF NOSTOC FLAGELLIFORME

This paper has described the biological characteristics on form,structure,growth and breeding of Nostoc flagelliforme,and discussed its adaptation.Results showed that the Nostoc flagelliformehas the typical morphological and physiological characteristics of xerophyte.It has strong capability of enduring drought,infertility,broil and sever cold,and habit to the sunlight and middle-level salt land.However it can not adapt well in the heavy salt and long term damp and hot environment.In addition,we have analyzed the reasons that the resource exhausted,and some proposals have been suggested in protection.