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采用野外样地调查(样方法、样线法和普查法)和标本馆标本查阅的方法对西藏自治区所分布的濒危藏药材如独一味、波棱瓜、翼首草、桃儿七、苞叶雪莲、臭蚤草、甘青青兰、毛瓣绿绒蒿、岩白菜、白花秦艽、藏菠萝花、鸡蛋参和手掌参等资源在西藏自治区的分布、多度、生物量等进行了调查,在对这些藏药植物种分布区面积计算的基础上,估测了它们在西藏的最大资源量。结果发现;1)除藏菠萝花外的12种植物藏药资源的分布区和海拔范围比过去文献所报道的都有所扩大,但手掌参、波棱瓜等的资源锐减,在野外已很难发现,分布区的扩大是因为过去的调查不全面,而资源量的缩减主要是人类过度利用有关。2)岩白菜植物密度最高,多度也最大;岩白菜的生物量最高;波棱瓜盖度最高,手掌参密度最低,盖度也最低。3)臭蚤草的资源量最高,其次为白花秦艽和桃儿七等。该研究增补了藏药材分布的新资料,并提出了生境系数这个新概念来估测植物种的资源量。
By using the field sample surveys (sample method, sample line method and census method) and the specimens of specimens from the herbaria, the endangered Tibetan medicinal materials distributed in the Tibet Autonomous Region such as Duyiwei, Bailuogua, The investigation of the distribution, abundance and biomass of snow lotus, smelly psyllium grass, green chlorophyll, Mentha haplotoxides, rock cabbage, Gentiana macrophylla, Tibetan pineapple, egg and palms resources in Tibet Autonomous Region Based on the calculation of the distribution area of these Tibetan medicine species, their maximum resources in Tibet are estimated. The results showed that: 1) The distribution and elevation range of Tibetan medicinal resources except for the pineapple flower increased than those reported in the past, but the resources of Panax ginseng, Difficult to find, the expansion of the distribution area is because the past survey is not comprehensive, and the reduction of resources is mainly related to human over-utilization. 2) The plant density of rock cabbage is the highest and its degree of abundance is also the highest. The biomass of rock cabbage is the highest. The highest degree of the rock cabbage is the highest, the lowest is the palm density and the lowest is the cover. 3) smelly psyllium grass resources, followed by the white flower Qipao and peach seven and so on. The study supplements new data on the distribution of Tibetan herbs and proposes a new concept of habitat factors to estimate the amount of plant species available.