| 摘要: |
| 【目的】调查红碱淖国家级自然保护区种子植物资源，并进行区系地理分析，以探明保护区植物的分布规律，为保护区生物多样性保护提供依据。【方法】利用植物生活型和区系地理学原理，采用野外样线样方调查法，选取8条样线35个样点,对保护区的种子植物资源进行调查，结合查阅资料，对保护区种子植物生活型和植物区系特征进行分析研究。【结果】红碱淖自然保护区有野生种子植物242种，隶属于63科167属,其中裸子植物3科6属7种，被子植物60科161属235种。生活型和区系地理分析结果表明，保护区内植物可分为乔木、灌木、亚灌木、多年生草本、一年生和两年生草本等5种生活型。科的分布区类型有4种分布型和2变型，属的分布区类型有13种，其中有104属为温带分布型，占总属数的62.28%，植物区系具有明显的温带性质。保护区水生、湿生及植物种类多样，且发育良好。耐盐、耐旱植物种类较多。【结论】红碱淖自然保护区种子植物生物多样性较低，生态平衡脆弱，亟待加强保护。 |
| 关键词: 红碱淖自然保护区 种子植物 生活型 生态型 地理分布 植物分布区类型 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金项目（31172103） |
|
| Seed plants diversity and flora areal-types in Hongjiannao Nature Reserve |
|
TIAN Mo,WEI Da,XIN Jianjiang,et al
|
| Abstract: |
| 【Objective】This study surveyed plants resources in the Hongjiannao Nature Reserve and analyzed flora characteristics of seeds plants to investigate the distribution of plants resources and improve the conservation of biodiversity.【Method】According to the sampling surveys and related documents,8 sample lines and 35 sample plots were chosen to investigate the life forms and distribution of seed plant resources.【Result】The wild seed plants in the Hongjiannao Nature Reserve included 63 families,167 genera and 242 species,among which 3 families (7 species in 6 genera) were Gymnosperms and 60 families (235 species in 161 genera) were Angiosperms.For life forms,there were 5 types of plants including arbor,bush,subshrub,perennial herb,and annual or biennial herb.For areal-types,there were 4 areal-types and 2 subtypes of families,and 13 areal-types of genera.The temperate elements were dominant in areal-types of genera with 104 genera accounting for 62.28%.【Conclusion】In the Hongjiannao Nature Reserve,the biodiversity of seed plants was low,the ecological balance was fragile, and urgent protection is needed. |
| Key words: Hongjiannao Nature Reserve seed plants life form ecotype geographic distribution flora areal types |
