植物生态学报 ›› 2019, Vol. 43 ›› Issue (华北专辑): 0-0.doi: 10.17521/cjpe.2018.0215

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内蒙古西鄂尔多斯地区半日花荒漠群落特征及其分类(专辑论文)

李紫晶1,莎娜2,史亚博2,佟旭泽1,董雷2,张小青2,孙蔷1,梁存柱3,4   

  1. 1. 内蒙古大学
    2. 内蒙古大学生态与环境学院
    3.
    4. 内蒙古大学生命科学学院
  • 收稿日期:2018-08-29 修回日期:2019-03-04 出版日期:2019-09-30 发布日期:2019-04-23
  • 通讯作者: 梁存柱
  • 基金资助:
    国家自然科学基金:不同树种径向生长对气候的响应机制研究(2012-2015);国家自然科学基金委“创新群体”项目第三期(2005-2015)。

Community characteristics and classification of Helianthemum songaricum Desert in Western Erdos Region, Nei Mongol

Zi-Jing LI1,Sha-Na 2,Ya-bo SHI3,Xu-Ze TONG1,Lei DONG4,Xiao-Qing ZHANG4,Qiang SUN1,Cun-Zhu LIANG5,5   

  1. 1. Inner Mongolian University
    2. Inner Mongolia university institute of ecology and environment
    3. School of Ecology and Environment, Inner Mongolia University
    4. School of Ecology and Environment,Inner Mongolian University
    5.
  • Received:2018-08-29 Revised:2019-03-04 Online:2019-09-30 Published:2019-04-23
  • Contact: Cun-Zhu LIANG

摘要: 半日花(Helianthemum songaricum Schrenk)为亚洲中部特有种和古地中海残遗植物,其群落为内蒙古西鄂尔多斯地区的特有荒漠群落。该文以2016–2017年野外调查数据为基础,结合相关文献资料,对半日花荒漠的分布、群落特征及其分类进行了总结。结果表明:(1)半日花荒漠集中分布于黄河以东内蒙古西鄂尔多斯的阿尔巴斯山麓南北部、千里沟;少量分布于黄河以西贺兰山北端内蒙古乌海市与阿拉善盟交界处及贺兰山最南端的内蒙古阿拉善盟与宁夏交界处明长城沿线的石质残丘。(2)根据样地调查,半日花荒漠记录到种子植物58种,隶属于17科39属,其中灌木、半灌木18种,多年生草本27种,一年生草本植物13种;水分生态类型中强旱生植物(15种)和旱生植物(29种)占绝对优势;区系地理成分以中亚东部成分为主,其次为古地中海成分和戈壁成分。(3)根据生活型和优势度,半日花荒漠群落可分为半日花-草本荒漠、半日花-灌木-草本荒漠、半日花-半灌木荒漠3个群丛组,进一步分为10个群丛。

Abstract:
Aim Helianthemum songaricum Schrenk is a central Asia endemic species and ancient Mediterranean remnant plants, and its community is a unique desert community in west Erdos, Nei Mongol. We studied the distributions, community characteristics and classifications of H. songaricum Desert, the research based on the primary plot data obtained from fieldwork during the growing seasons from 2016 to 2017 as well as some earlier literatures. Methods The quantitative classification on community types were made by the methods of TWINSPAN. Important findings The results showed that: (1) H. songaricum Desert primarily distributed in the north and south of the Arbas Mountains and Qianli Ravine in west Erdos, which located in east of the Yellow River, and rare in the southern and northern Helan Mountain, which located in the west of the Yellow River. The southern part is along to the Ming Great Wall, which is the junction of Alxa League and Ningxia. The north part is located in the junction of Wuhai City and Alxa League. (2) 58 seed plants belonging to 39 genera and 17 families were recorded in the study sites, 18 of them were shrubs and subshrubs species, 27 were perennial herbs species and 13 were annual herbs species. Super-xerophytes and xerophytes were the two major ecological type of water, accounting for 26% and 50%, respectively. Central Asia-Eastern Asia element was major floristic elements, followed by Palaeo-Mediterranean element and Gobi element. (3) Based on the life forms and dominances of the species in community, H. songaricum desert alliance was divided into three major association groups (H. songaricum - Herbs Desert, H. songaricum - Shrubs - Herbs Desert, H. songaricum - Subshrubs Desert), and then, subdivided into 10 associations.