漳河源自然保护区野生保护植物优先保护定量研究

Quantitative assessment of priority for conservation of the national protected plants in Zhangheyuan Nature Preserve of Nanzhang County

在野外调查和文献资料查阅的基础上,研究了漳河源自然保护区国家重点保护野生植物的分布情况,并运用濒危系数、遗传价值系数和物种价值系数对其优先保护顺序进行了定量分析。结果表明:(1)漳河源自然保护区共有国家重点保护野生植物21种,其中Ⅰ级3种,Ⅱ级18种,分别占湖北省分布的45.65%,37.50%和47.37%.(2)采用优先保护评价体系对21种国家重点保护植物进行排序,其结果与《国家重点保护野生植物名录(第一批)》结果有所不同:属一级保护的有红椿、连香树、闽楠和桢楠4种,占总数的19.05%;属二级保护的有大果青扦、香果树、篦子三尖杉、鹅掌楸、红豆树、红豆杉、南方红豆杉、银杏、喜树和黄皮树10种,占总数的47.62%;属三级保护的有厚朴、凹叶厚朴、榉树和巴山榧树4种,占总数的19.05%;属四级保护的有金荞麦、樟树和野大豆3种,占总数的14.29%。(3)该评价体系对21种植物的评价与分级结果更真实地反映了它们在该区域的受威胁状态和优先保护顺序。

Based on the field investigation and known data, the distribution of the national key preserved wild plants in Zhangheyuan Nature Preserve was studied and analyzed in this paper, and the priority conservation of the national key protected wild plants was quantitative analyzed by using the threatened coefficient, the genetic coefficient and the specific value coefficient. The results were： （1） There were 21species of the national key preserved wild plants in Zhangheyuan Nature Preserve, among which 3 species belonged to the first class, 18 belonged to the second class, and each accounted for 45. 65%,37. 50% and 47.37% of the Hubei province＇s distribution, respectively. （2） 21 species of the national key preserved wild plants were sequenced by the system of priority conservation and evaluation, and the results were different from 〈The checklist of national key preserved wild plants （The first passel）〉： Toona ciliata, Cercidiphyllure japonicum, Phoebe bournei and Phoebe zhennan belonged to the first rank preserve, and accounted for 19.05% ; Picea neowitchii , Emmenopterys henryi , Cephalotaxcus oliveri , Liriodendron chinense , Ormosia henryi , Taxus chinensis , Ta：cus chinensis var. mairei , Ginkgo biloba , Camptotheca acuminata and Phellodendron chinense belonged to the second rank preserve, and accounted for 47.62% ; Magnolia officinalis, Magnolia officinalis ssp. biloba, Zelkova schneideriana and Torreya fargesii belonged to the third rank preserve, and accounted for 19. 05%; Fagopyrum dibotrys, Cinnamomurn camphora and Glycine soja belonged to the fourth rank preserve, and accounted for 14.29%. （3） Plant threatened status and priority preservation sequence were more truly reflected by the evaluation and rating results from this evaluation system.