广西青天葵野生资源现状

以走访调查和实地调查相结合的方法对青天葵野生资源在广西的分布、药材品种、群落特征、资源蕴藏量等情况进行了调查。结果表明:青天葵在广西主要分布在石灰岩地区,其药材品种按商品规格分为小叶和大叶2种,小叶青天葵为该文的调查对象毛唇芋兰,大叶青天葵为同属植物毛叶青天葵,亦当作青天葵出售和使用;青天葵生长群落结构在不同产区略有差异;由于人为过度采挖和生态环境条件的变化,广西青天葵野生资源的分布面积逐年减缩,蕴藏量急剧减少。经调查,广西青天葵野生资源蕴藏量(鲜品)仅为4 815 kg。建议采取各种积极的措施保护青天葵野生资源,保证青天葵的可持续利用。

Current situation of wild resources of Nervilia fordii in Guangxi

By field investigation combining with interview investigation,the distribution of wild resource in Guangxi,species of medicinal materials,community characteristic and resource reservation etc. of Nervilia fordii were investigated. The results showed that:N.fordii distributed mainly in limestone mountainous region in Guangxi,it could be divided into two kinds(large leaves and small leaves)according to commercial specification. The small-leaves one(N.fordii)was investigated in this paper,and the large-leaves one(N.plicata),which belonged to the same genera with N.fordii,was sold and used as N.fordii;the community structure of N.fordii was appreciably different in different producing areas;wild resource distribution area of N.fordii was becoming more and more limited and its wild resource quantity had reduced rapidly,because of the excess collection by human and the change of ecological environment. According to the investigation,wild resource reservation of N.fordii was only 4 815 kg,various active measures should be adopted to protect wild resource of N.fordii in order to ensure the sustainable utilization of it.