湖北林业科技

Abstract:Myricaria laxiflora is an important conservation plant.The purpose of this investigation is to understand the distribution,growth and associated species of M.laxiflora on Yichang ,Yidu,Zhijiang to find out the reasonable and effective protection measures.In the investigation, the geographical information,the plant number and the growth status were recorded by using the sampling method for a general understanding of the status of the species growth through these data.We Calculated the its number by Sample information and estimated the its total number in order to carry out the subsequent protection and management. Through the investigation,We inferred that the water storage and drainage function of the Three Gorges Dam made the downstream of the dam just formed a new falling zone,forming a semi-flooded environment for the growth of M.laxiflora.Environmental changes, human disturbance and other factors affect the growth of M.laxiflora together.We concluded that the more effective method is to establish a nature reserve to reduce human interference.Besides, Exsitu conservation and artificial cultivation are also important methods to rapidly expand the number of populations.We hoped that this investigation will provide some reference for the future protection work,which is of great significance to ensure the diversity of species and gene diversity.