Biodiv Sci ›› 2024, Vol. 32 ›› Issue (12): 24052.  DOI: 10.17520/biods.2024052  cstr: 32101.14.biods.2024052

• Original Papers •     Next Articles

Characteristics of plant communities in the Baishanzu continuous elevational transect

Jia Yao1,2, Congling Zhang1,2, Shixuan Li1,2, Yang Lin3, Zhen Wang4, Yuhan Zhang4, Weilong Zhou5, Xinhe Pan6, Shan Zhu7, Yiqing Wu8, Dan Wang9, Jinliang Liu10(), Shanshan Tan2,*(), Guochun Shen1,2(), Mingjian Yu4()   

  1. 1. Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, Ningbo, Zhejiang 315114, China
    2. School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
    3. College of Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
    4. College of Life Sciences, Zhejiang University, Hangzhou 310058, China
    5. Baishanzu Research and Monitoring Center of Qianjiangyuan-Baishanzu National Park, Lishui, Zhejiang 323000, China
    6. Scientific Research and Management Center of East China Medicinal Botanical Garden, Lishui, Zhejiang 323000, China
    7. Lishui Baiyunshan Ecology Forest Farm, Lishui, Zhejiang 323000, China
    8. Qingyuan Conservation Center of Qianjiangyuan-Baishanzu National Park, Qingyuan, Zhejiang 323800, China
    9. Longquan Conservation Center of Qianjiangyuan-Baishanzu National Park, Longquan, Zhejiang 323700, China
    10. College of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang 325035, China
  • Received:2024-02-06 Accepted:2024-07-26 Online:2024-12-20 Published:2025-01-10
  • Contact: E-mail: sstan@des.ecnu.edu.cn
  • About author:First author contact:# Co-first authors
  • Supported by:
    China and Baishanzu National Park Research Foundation(2023JBGS01);China and Baishanzu National Park Research Foundation(2021ZDLY03);China and Baishanzu National Park Research Foundation(2021ZDZX01);National Natural Science Foundation of China(32271596);Natural Science Foundation of Shanghai(23ZR1419200);“Pioneer” and “Leading Goose” R&D Program of Zhejiang(2023C03137);Fundamental Research Funds for the Central Universities

Abstract:

Aims: Mountain ecosystems are vital hotspots for global biodiversity. However, climate change and human activities pose significant threats to these ecosystems, leading to alarming transformations. It is essential to monitor changes in these delicate mountain environments, both in terms of biodiversity patterns and fluctuations, in a timely and precise manner. Such monitoring not only advances scientific understanding of species dynamics, but also informs the crucial conservation efforts needed to preserve these vital habitats.

Methods: This study proposed constructing a continuous elevational transect across mountainous terrain as an ideal framework for understanding and predicting the impacts of climate change on mountain biodiversity. We implemented this approach in the Baishanzu region, Qianjiangyuan-Baishanzu National Park candidate area. Along this transect, we examined the flora, species composition, community structure, and diversity patterns of plant communities in relation to the steady changes in altitude.

Results: As elevation increased, the proportion of temperate genera gradually increased, while the proportions of both evergreen species and individuals decreased, although evergreens remined dominated overall. The average tree heights and the maximum tree height of the forest community peaked at approximately altitude of 1,600 m. Species richness and phylogenetic diversity reached their highest points around 1,200 m, displaying a unimodal trend on a broad scale. Other diversity indices, including the Shannon-Wiener diversity index, declined with elevation. Finally, this study also highlighted the unique advantages, recognized limitations, and future development potential of utilizing a continuous elevational transect.

Conclusion: Continuous elevational transects have the potential to be a valuable supplement to existing mountain diversity monitoring systems. They may provide deeper insights into the temporal and spatial shifts in biodiversity within mountain biodiversity forest ecosystems over time.

Key words: Baishanzu, continuous elevational transect, evergreen broad-leaved forest, species composition, dominant species