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Forest and Grassland Resources Research >

2025 , Vol. 0 >Issue 3: 109 - 118

DOI: https://doi.org/10.13466/j.cnki.lczyyj.2025.03.013

Technical Application

Establishment and application of simultaneous models for estimating main stand characteristics based on Sentinel-2 data in Beijing

  • Weisheng ZENG ,
  • Xuexiang WEN ,
  • Xiaoyao LI ,
  • Bingxiang TAN ,
  • Xiangnan SUN ,
  • Qiangyi LIU ,
  • Tian WANG
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  • 1. Academy of Forest and Grassland Inventory and Planning,National Forest and Grassland Administration,Beijing 100714,China
    2. Research Institute of Forest Resource Information Techniques,Chinese Academy of Forestry,Beijing 100091,China

Received date: 2025-03-25

  Revised date: 2025-05-19

  Online published: 2026-01-07

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Abstract

In order to explore the feasibility of establishing main stand characteristics models based on Sentinel-2 data to estimate the factors of forest patches,the ground plot measured data and spectral characteristic metrics of 1 500 forest plots in Beijing were used to develop prediction models of three major forest types through the error-in-variable simultaneous equations.The models involve eight main stand characteristics,including mean DBH,mean height,dominant height,stem number,basal area,stock volume,biomass and carbon storage.Additionally,based on the spectral characteristic parameters extracted by 25 m×25 m grid cells within the forest patches in Beijing,the eight prediction models were used to estimate main stand characteristics of all forest patches.The results showed:1)The spectral characteristic metrics of Sentinel-2 that contributed the most to the estimation of main stand characteristics were B11 and B12(short wave infrared 1 and 2 band reflectance),followed by B5(red-edge 1 band reflectance)and RVI(Ratio Vegetation Index);2)The mean prediction errors(MPEs)of eight main stand characteristics models of three major forest types were less than 10%,either self-validation or cross-validation;3)The cumulative value of stock volume in all forest patches estimated by the volume models is only -1.74% lower than that obtained by the integrated monitoring of the municipality,which was within the allowable error range of sampling survey.The eight prediction models of three major forest types can be used to estimate the main stand characteristics of forest patches in Beijing;and the prediction accuracy of the main stand characteristics models based on spectral characteristic parameters of Sentinel-2 can almost meet the technical requirements of forest resource inventory and monitoring,then can be applied in practice.

Key words： spectral characteristic metrics; main stand characteristics; error-in-variable; simultaneous models; Beijing

Cite this article

Weisheng ZENG , Xuexiang WEN , Xiaoyao LI , Bingxiang TAN , Xiangnan SUN , Qiangyi LIU , Tian WANG . Establishment and application of simultaneous models for estimating main stand characteristics based on Sentinel-2 data in Beijing[J]. Forest and Grassland Resources Research, 2025 , 0(3) : 109 -118 . DOI: 10.13466/j.cnki.lczyyj.2025.03.013

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