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Forest and Grassland Resources Research >

2025 , Vol. 0 >Issue 3: 127 - 138

DOI: https://doi.org/10.13466/j.cnki.lczyyj.2025.03.015

Technical Application

Health assessment of Robinia pseudoacacia plantations in the Henan Old Yellow River Course area using PLS-SEM Model

  • Peixia YE ,
  • Kai LUO ,
  • Zhenhai SHEN ,
  • Shanshan JIN ,
  • Mengli ZHOU ,
  • Dongfeng YAN
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  • 1. College of Forestry,Henan Agricultural University,Zhengzhou 450002,China
    2. National Shangqiu Minquan Forest Farm,Minquan 476800,Henan,China

Received date: 2025-03-07

  Revised date: 2025-06-06

  Online published: 2026-01-07

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Abstract

The Robinia pseudoacacia plantations in the sandy areas of the Yellow River floodplain in Henan Province exhibit a widespread degradation trend,significantly impacting the regional ecological environment.Accurately and scientifically evaluating their health status is critical for the restoration of degraded forests.This study focused on the R.pseudoacacia plantations in Zhongmu Forest Farm,located in the Yellow River floodplain of Henan Province.With field investigationsconductedin 44 representative plots,22 indicators across four dimensions involving stand productivity,stand site,stand resistance and stand structure were selected.Using Partial Least Squares Structural Equation Modeling(PLS-SEM),K-means clustering analysis,and Fisher discriminant analysis,a health assessment system and a health index model suitable for this region were established,followed by a comprehensive evaluation of stand health status.The results showed that the constructed PLS-SEM passed tests of validity,model fit,and significance.By using the PLS-SEMmodel,the weights of the four latent variable layersof stand productivity,stand site,stand resistance,and stand structure,were determined as 0.257,0.233,0.256,and 0.254,respectively.The health evaluation index of the studied R.pseudoacacia plantations ranged from 2.266 to 3.272.Among them,11.4% were in a healthy state,25.0% in a sub-healthy state,45.4% in a moderately healthy state,and 18.2% in an unhealthy state.The comprehensive findings indicate that stand productivity and stand resistance are the key dimensions determining the health of R.pseudoacacia plantations in the Henan Yellow River Old Course area.Specifically,mean tree height was identified as the most critical indicator of stand productivity,while external disturbance emerged as the primary constraining factor for stand resistance.

Key words： Robinia pseudoacacia plantations; forest health assessment; PLS-SEM; Yellow River floodplain sandy areas

Cite this article

Peixia YE , Kai LUO , Zhenhai SHEN , Shanshan JIN , Mengli ZHOU , Dongfeng YAN . Health assessment of Robinia pseudoacacia plantations in the Henan Old Yellow River Course area using PLS-SEM Model[J]. Forest and Grassland Resources Research, 2025 , 0(3) : 127 -138 . DOI: 10.13466/j.cnki.lczyyj.2025.03.015

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