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FOREST RESOURCES WANAGEMENT ›› 2022›› Issue (4): 157-163.doi: 10.13466/j.cnki.lyzygl.2022.04.020

• Research Briefing • Previous Articles     Next Articles

A Provincial-Municipal-County Integrated Forest Carbon Storage Estimating Technology System —Take Guangdong Province as an Example

XUE Chunquan1(), CHEN Zhenxiong2, YANG Jiazhi1, ZENG Weisheng3, LIN Liping1, LIU Ziwei2, ZHANG Hongai1, SU Zhiyao4   

  1. 1. Guangdong Forestry Survey and Planning Institute,Guangzhou 510520,China
    2. Central South Inventory and Planning Institute of National Forestry and Grassland Administration,Changsha 410014,China
    3. Academy of Forestry Inventory and Planning,National Forestry and Grassland Administration,Beijing 100714,China
    4. South China Agricultural University,Guangzhou 510510,China
  • Received:2022-05-31 Revised:2022-06-28 Online:2022-08-28 Published:2022-10-13

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Abstract:

The purpose of this study is to establish the integrated province-city-county forest carbon storage estimation technology system of Guangdong,and provide a method reference for local government to measure forest carbon storage.This study used forest sample plot survey data of the ninth national forest resources continuous inventory of Guangdong Province in 2017,established a simultaneous prediction model with forest volume,biomass and carbon storage as target variables,and stand basal area and stand average height as explanatory variables,each model's determination coefficient R2 was above 0.94,MPE average forecast error was less than 3%.The average percentage standard error (MPSE)was less than 15%,and the evaluation indexes showed that the model had high practicability.Based on the sub-class data of 2018 second-class forest resources survey in Guangdong Province,supported by model technology and data coupling technology,the forest reserves of Guangdong Province were translated into forest map patterns in forest resources archive data,and then aggregated into villages,towns,counties,cities and provinces step by step,realizing provincial-city-county integration under the national framework system.The results showed that the system coupling method of carbon storage estimation technology established was scientific and feasible,and the prediction model had high accuracy,which could be popularized and applied in the assessment and evaluation of carbon neutralization goals of provinces,cities and counties.

Key words: carbon neutrality, forest carbon storage, integration, Guangdong Province

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