Editors-in-Chief:  Weilun Yin, Beijing Forestry University, China Klaus v. Gadow, University of Göttingen, Germany
Volume 11 Issue 1
Jan.  2024
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Zichun Wang, Yaoxiang Li, Guangyu Wang, Zheyu Zhang, Ya Chen, Xiaoli Liu, Rundong Peng. Drivers of spatial structure in thinned forests[J]. Forest Ecosystems, 2024, 11(1): 100182. DOI: 10.1016/j.fecs.2024.100182
Citation: Zichun Wang, Yaoxiang Li, Guangyu Wang, Zheyu Zhang, Ya Chen, Xiaoli Liu, Rundong Peng. Drivers of spatial structure in thinned forests[J]. Forest Ecosystems, 2024, 11(1): 100182. DOI: 10.1016/j.fecs.2024.100182
shu

Drivers of spatial structure in thinned forests

  • a.

    College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin, 150040, China

  • b.

    Department of Forest Resources Management, University of British Columbia, Vancouver, Canada

Funds: 

the Innovation Foundation for Doctoral Program of Forestry Engineering of Northeast Forestry University LYGC202117

the China Scholarship Council (CSC) 202306600046

the Research and Development Plan of Applied Technology in Heilongjiang Province of China GA19C006

Research and Demonstration on Functional Improvement Technology of Forest Ecological Security Barrier in Heilongjiang Province GA21C030

More Information
  • Corresponding author:

    Yaoxiang Li, E-mail address: yaoxiangli@nefu.edu.cn (Y. Li)

  • Received Date: 24 January 2024
  • Rev Recd Date: 26 February 2024
  • Accepted Date: 27 February 2024
  • Available Online: 26 May 2024
    Graphical Abstract
    • Abstract
  • Background 

    As is widely known, an increasing number of forest areas were managed to preserve and enhance the health of forest ecosystems. However, previous research on forest management has often overlooked the importance of structure-based.


    Aims 

    Our objectives were to define the direction of structure-based forest management. Subsequently, we investigated the relationships between forest structure and the regeneration, growth, and mortality of trees under different thinning treatments. Ultimately, the drivers of forest structural change were explored.


    Methods 

    On the basis of 92 sites selected from northeastern China, with different recovery time (from 1 to 15 years) and different thinning intensities (0–59.9%) since the last thinning. Principal component analysis (PCA) identified relationships among factors determining forest spatial structure. The structural equation model (SEM) was used to analyze the driving factors behind the changes in forest spatial structure after thinning.


    Results 

    Light thinning (0–20% trees removed) promoted forest regeneration, and heavy thinning (over 35% of trees removed) facilitated forest growth. However, only moderate thinning (20%–35% trees removed) created a reasonable spatial structure. While dead trees were clustered, and they were hardly affected by thinning intensity. Additionally, thinning intensity, recovery time, and altitude indirectly improve the spatial structure of the forest by influencing diameter at breast height (DBH) and canopy area.


    Conclusion 

    Creating larger DBH and canopy area through thinning will promote the formation of complex forest structures, which cultivates healthy and stable forests.


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