地理科学 ›› 2019, Vol. 39 ›› Issue (7): 1166-1173.doi: 10.13249/j.cnki.sgs.2019.07.015

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丹霞山国家重点保护野生植物丹霞梧桐生态保护红线研究

欧阳杰1,2   

  1. 1. 广东开放大学文化传播与设计学院,广东 广州 510091
    2. 广东理工职业学院,广东 广州 510091
  • 收稿日期:2018-08-17 修回日期:2018-11-18 出版日期:2019-07-10 发布日期:2019-07-10
  • 作者简介:欧阳杰(1969-),男,安徽蚌埠人,博士,副教授,主要从事丹霞地貌与珍稀植物资源大数据、无人机航测、会展旅游等方面研究。E-mail: 910432328@qq.com
  • 基金资助:
    国家科技基础性工作专项重点项目(2013FY111900);2019年广东大学生科技创新培育专项资金(pdjh2019b0735);广东开放大学(广东理工职业学院)2019 年度科研课题重点项目(ZD1904);丹霞地貌珍稀植物科研团队(kytd1703);创新强校项目资助(2018LGCQ06-02)

The Ecological Redlines of National Rare and Endangered Species of Firmiana danxiaensis in the Danxia Mountain

Ouyang Jie1,2   

  1. 1. Institute of Cultural Communication and Design, the Open University of Guangdong, Guangzhou 510091, Guangdong, China
    2. Guangdong Polytechnic Institute, Guangzhou 510091, Guangdong, China
  • Received:2018-08-17 Revised:2018-11-18 Online:2019-07-10 Published:2019-07-10
  • Supported by:
    The Special Program for Key Basic Research of the Ministry of Science and Technology of China(2013FY111900);the Special Funds for the Cultivation of Guangdong College Students’ Scientific and Technological Innovation of 2019 (the “Climbing Program” Special Funds)(pdjh2019b0735);The Key Project(ZD1904);Science and Research Team of Rare Plant in Danxia Landforms of the Open University of Guangdong(kytd1703);the Project of Innovate and Strength College(2018LGCQ06-02)

摘要:

通过实地考察获取丹霞山核心区丹霞梧桐(Firmiana danxiaensis)数量及其空间分布的经纬度数据,利用ArcGIS10.5的空间分析模块,在分辨率为1 m的DEM数据上叠加,分析丹霞山丹霞梧桐空间分布的坡度、坡向的微地貌环境特征。实地调查表明(2017年12月底),在丹霞山已开发核心区丹霞梧桐数量不足千株,它们主要分布在海拔100~300 m、坡度大于30°的北西坡和南东坡、有垂直节理或水平层理发育、土壤相对比较贫瘠的崖壁地带。建议在目前丹霞山核心区已发现的怪面石、金龟朝圣、龙角山、锦石岩、双喜台、龙王泉-韶音亭6处丹霞梧桐分布集中的地带,划定丹霞山丹霞梧桐生态保护红线,以便进行重点监测、保护和研究。

关键词: 丹霞梧桐, 生态保护红线, 丹霞地貌, 广东丹霞山

Abstract:

Firmiana danxiaensis is selected as Critically Endangered (CR) plants in the first volume of the China Species Red List (CSRL, 2004), as well as the grade national key protected wild plants. Field surveys show that F. danxiaensis in the core areas of the Danxia Mountain of the Guangdong Province are not only very rare, but also in very narrow distribution areas. As the increasing influence of the world natural heritage sites of “China Danxia”, abundant activities of human beings and visitors in the Danxia Mountain may influence the survival environments of natural plants. Therefore, it is important to find out the number of F. danxiaensis , and summarize the characteristics of their micro geomorphic environments. The number of F. danxiaensis and their spatial distribution are got by field investigations, and the spatial analysis module of the ArcGIS10.5 are used to overlay at the DEM data of 1 m resolution ratio to analyze their environment characteristics of spatial distribution of the slope and the aspect. The investigations indicate that there are only 772 Firmiana danxiaensis in the core areas of the Danxia Mountain, with the altitudes between 100-300 m, slope above 30°, aspects of northwest and southeast with vertical joints and horizontal beddings, and relatively barren soil of cliffs. From the study, we may speculate that F. danxiaensis is also distributed with similar micro-landforms of Danxia red cliffs outside of this research area. The actual situation needs to be further investigated and verified by UAV (unmanned aerial vehicle) technology. Besides F. danxiaensis , there are special rare and endangered vegetations in the Danxia Mountain, such as Danxiaorchis singchiana, Spiradiclis danxiashanensis, Viola hybanthoides, and Chiritopsis danxiaensis which are the common wealth of all mankind in revealing the origin of the species, system evolution, genetic breeding, reproductive ecology, etc. So it is urgent to monitor, protect and study the 6 concentrated areas of F. danxiaensis of Guaimianshi, Jinguichaosheng, Longjiaoshan, Jinshiyan, Shuangxitai, and Longwangquan-Shaoyinting, and establish ecological redlines of F. danxiaensis in the Danxia Mountain of Guangdong Province, China.

Key words: Firmiana danxiaensis, ecological redline, Danxia landforms, the Danxia Mountain of Guangdong

中图分类号: 

  • Q948.2