【作者】 陈维川；

【导师】 陈建伟； 崔国发；

【作者基本信息】 北京林业大学 ， 生态学， 2005， 硕士

【摘要】 本文在对蒲洼自然保护区的植物物种、植被进行调查的基础上,进行植物多样性分析,研究结果如下:蒲洼自然保护区共有维管束植物100科331属552种和变种,地理成分复杂,包括14个分布区类型,区系组成以温带成分为主。该区主要群落可分为3个植被型组,5个植被型,18个群系,32个群丛,分布最广泛,面积最大的为鹅耳枥群系。在对α多样性、β多样性进行计算的基础上,分析了不同植被类型植物多样性差异形成的原因。通过对蒲洼自然保护区的森林资源价值分析和评价,得出蒲洼自然保护区森林资源总价值60020.58万元,其中生态效益价值56747.79万元,占总价值的94.55%,林地和林木的价值1842.79万元,占总价值的3.07%。通过濒危评价,得出蒲洼自然保护区植物极危种6种,濒危种18种,易危种17种,近危种43种,安全种419种。根据群丛优先保护顺序研究和蒲洼自然保护区资源分布特点分析,确定重点保护的植物群落有辽东栎林、鹅耳枥林、胡桃楸林、青檀林。据此划分了保护区的功能区,其中核心区面积2608.3公顷,缓冲区面积1978.7公顷,实验区的面积809.5公顷。更多还原

【Abstract】 In this dissertation, plant biodiversity in Puwa nature reserve is analyzed with field survey on plant species and forest vegetation, the results show that: The vascular plants in Puwa nature reserve include 552 species (variation) which belong to 331 genera, 100 families. The flora geographical composition are complex, the dominant characteristics of flora are temperate zone plants. In this region, the plant vegetation was classified into 32 associations , which belong to 3 groups of vegetable types and 5 vegetation types and 22 forms, the widest distribution is Carpinus turczaninowii community. Based on the calculating of α diversity and β diversity, the causation of difference of plant diversity betweeen forest vegetations is analized. Calculating the value of forest resources, we can see that the total value of forest resources in Puwa nature reserve is 600. 2058 million RMB, in which the eco-benefit value is 567.4779 million RMB that occupy 94.55 percent and the value of forest area and wood is 18. 4279 million RMB that occupy 3. 07 percent. Evaluating the threatened hierarchy of plants in Puwa nature reserve, the results show that the number of critically endangered species is 6, endangered species is 18, vulnerable species is 17, near threatened species is 43, safty species 419. Sequence of preferential protection of associations and the distribution of forest resources is analyzed, the result indicate that primary forest include Quercus liaotungensis、 Carpinus turczaninowii 、 Juglans mandshurica and Pteroceltis tatarinowii. The core region of the nature reserve is 2608. 3hm~2, the bufferregion is 1978. 7hm~2 and the experimental region is 809. 5hm~2.更多还原