湖北万朝山自然保护区珍稀濒危植物优先保护定量研究

Quantitative assessment of priority for rare and endangered plants in Wanchaoshan Nature Reserve of Hubei

关键词:  珍稀濒危保护植物, 优先保护, 万朝山自然保护区

Key words:  rare and endangered plants, priority of conversation, Wanchaoshan Nature Reserve

摘要:

该研究采用样线法和样地法,对湖北万朝山自然保护区的珍稀濒危保护植物资源进行了调查,并运用濒危系数、遗传价值系数和物种价值系数,计算出综合评价值,对其优先保护顺序进行了定量分析。结果表明:保护区内共有珍稀濒危保护植物47种,隶属于34科44属; 根据综合评价值对珍稀濒危保护植物物种进行优先保护评价排序,其中Ⅰ级优先保护物种有9种,Ⅱ级优先保护物种有23种,Ⅲ级优先保护物种有12种,Ⅳ级优先保护有物种3种。通过分析珍稀濒危保护植物分布特征,发现该保护区珍稀濒危植物分布相对集中,并且在900～1 600 m海拔段,珍稀濒危保护植物物种和数量分布最多。该研究结果更加真实有效地为该保护区管理部门制定该地区珍稀濒危植物保护计划提供了科学依据,使其更加高效有力地指导本保护区的保护工作。

Abstract:

Based on sample-plot survey and sample-line survey, rare and endangered plantsresurces in Wanchaoshan Nature Reserve of Hubei Province was investigated, and the priority conservation of rare and endangered plants was quantitatively analyzed by using threatened confficient, genetic coefficient, species value coefficient and comprehensive evaluation value. The results showed that there were 47 species of rare and endangered plants belonging to 34 genra of 44 families; 9 species was ranked as the first grade for conservation priority, 23 species as the secondgrade,12 species as the third grade, and 3 species as the fourth grade, according to the distribution characteristics of rare and endangered plants. It is found that the distribution of the rare and endangered plants is relatively concentrated, and at the altitude of 900 - 1 600 m, the species and the number of rare and endangered plant species were the most. This research result is more realistic and effective, which provides a scientific basis for the management of the protected area to make the protection plan of the rare and endangered plants in the area, and makes it more efficient and effective in guiding the protection of the area.