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植物研究 ›› 2023, Vol. 43 ›› Issue (3): 361-369.doi: 10.7525/j.issn.1673-5102.2023.03.005

• 生理与生态 • 上一篇    下一篇

镜泊湖世界地质公园火山口地下森林苔藓植物多样性

丛明旸1(), 李永坤2, 阳文静3, 陈朴青1   

  1. 1.江西师范大学分析测试中心,南昌 330022
    2.牡丹江镜泊湖旅游发展有限公司,牡丹江 157005
    3.江西师范大学鄱阳湖湿地与流域研究教育部重点实验室,南昌 330022
  • 收稿日期:2022-03-31 出版日期:2023-05-20 发布日期:2023-05-11
  • 通讯作者: 丛明旸 E-mail:congmingyang@jxnu.edu.cn
  • 作者简介:丛明旸(1986―),女,高级实验师,博士,主要从事苔藓植物分类学和生物多样性研究。
  • 基金资助:
    国家自然科学基金(31700168);江西省自然科学基金(20202BABL213044);江西省教育厅科学技术研究项目(GJJ200327);江西师范大学青年英才培育计划(202006)

Bryophyte Diversity of Underground Forests in Craters of Jingpohu Global Geopark

Mingyang CONG1(), Yongkun LI2, Wenjing YANG3, Puqing CHEN1   

  1. 1.Analytical and Testing Center,Jiangxi Normal University,Nanchang 330022
    2.Mudanjiang Jingpo Lake Tourism Development Limited Corporation,Mudanjiang 157005
    3.Key Laboratory of Poyang Lake Wetland and Watershed Research,Ministry of Education,Jiangxi Normal University,Nanchang 330022
  • Received:2022-03-31 Online:2023-05-20 Published:2023-05-11
  • Contact: Mingyang CONG E-mail:congmingyang@jxnu.edu.cn
  • About author:CONG Mingyang(1986―),female,senior experimentalist,doctor,major in bryophyte taxonomy and biodiversity.
  • Supported by:
    National Natural Science Foundation of China(31700168);Jiangxi Provincial Natural Science Foundation(20202BABL213044);Science and Technology Project of Educational Department in Jiangxi Province(GJJ200327);Young Talent Cultivation Funding Program of Jiangxi Normal University(202006)

摘要:

为探究镜泊湖世界地质公园火山口地下森林苔藓植物多样性,采用典型调查法开展野外调查,共采集苔藓植物标本3 622份,采用形态解剖学方法鉴定物种,结果表明:共记录苔藓植物53科126属292种,其中苔类植物14科17属31种,藓类植物39科109属261种。4个火山口苔藓植物种数由多至少为Ⅳ(192种)、Ⅰ(126种)、Ⅲ(113种)和Ⅱ(61种)。优势科有青藓科(Brachytheciaceae)、提灯藓科(Mniaceae)、丛藓科(Pottiaceae)等,占总种数的42.12%;优势属有青藓属(Brachythecium)、绢藓属(Entodon)、匐灯藓属(Plagiomnium)等,占总种数的18.49%;优势种有金灰藓(Pylaisia polyantha)、短叶毛锦藓(Pylaisiadelpha yokohamae)、广叶绢藓(Entodon flavescens)等。4个火山口苔藓植物共有种为20种,Ⅳ号独有种最多(88种),多样性支持“中度干扰假说”。镜泊湖火山与五大连池火山苔藓植物相似性高(20.42%),说明地形对多样性的贡献较大。垂直海拔最高的Ⅰ号火山口苔藓植物α多样性呈中峰格局,支持“中间高度膨胀”理论,建议对苔藓植物最丰富的中部海拔段给予优先保护。本研究表明镜泊湖火山口地下森林现存较丰富的苔藓植物种类,在我国火山生态系统中占重要地位,建议对此处苔藓植物给予重点保护,以保存基因资源。本研究结果提供了第一手基础本底资料,具有重要的科学意义。

关键词: 生物多样性优先保护区, 苔藓植物, 物种多样性, 火山口, 地下森林

Abstract:

To explore the bryophyte diversity of underground forests in craters of Jingpohu Global Geopark, the typical investigation method was used, and a total of 3 622 bryophyte specimens were collected, and morphological and anatomical methods were used to identify the specimens. The results showed that, 292 species(126 genera and 53 families) were recorded, 31 species (17 genera and 14 families) were liverworts, 261 species (109 genera and 39 families) were mosses. The number of bryophyte species of four craters was 192 species in Ⅳ, 126 species in Ⅰ, 113 species in Ⅲ, and 61 species in Ⅱ, respectively. The dominant families were Brachytheciaceae, Mniaceae, Pottiaceae, etc., accounting for 42.12% of the total species, and the dominant genera were BrachytheciumEntodonPlagiomnium, etc., accounting for 18.49% of the total species, and the dominant species were Pylaisia polyanthaPylaisiadelpha yokohamaeEntodon flavescens, respectively. There were 20 common species of bryophytes in four craters, and the unique species in the Ⅳ crater was the most(88 species). The diversity of the ‘moderate interference hypothesis’ was supported, and the similarity of bryophytes between Jingpo Lake crater and Wudalianchi volcanos was high(20.42%), which revealed that the terrain contributes greatly to the diversity. The alpha diversity of bryophytes in the crater I exhibited a mid-peak pattern, which was in line with the ‘Mid-elevation bulge’ theory, priority should be given to the central elevation where the bryophytes were the most abundant. The study showed that the underground forests in Jingpohu Global Geopark craters preserved high bryophyte diversity and played an important role in the volcanic ecosystem of China, and a key protection should be given to bryophytes in this volcanic geological wonder to preserve genetic resources, and the results provided first-hand basic information and important scientific significance.

Key words: biodiversity priority conservation area, bryophytes, species diversity, crater, underground forests

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