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Forest and Grassland Resources Research >

2021 , Vol. 0 >Issue 3: 154 - 159

DOI: https://doi.org/10.13466/j.cnki.lyzygl.2021.03.024

Technical Application

Application of Middle-Resolution Satellite Remote Sensing Technology in Dynamic Monitoring of Forest Resources

  • Yufang LAN ,
  • Xiaohua SHI ,
  • Shengli MA ,
  • Zhaoli WANG ,
  • Xin JIN
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  • 1. Northwest Surveying,Planning and Designing Institute of National Forestry and Grassland Administration,Xi'an,Shaanxi 710048,China
    2. Xi'an Lvhuan Forestry Technical Service Company,Xi'an 710048,China

Received date: 2021-05-20

  Revised date: 2021-05-24

  Online published: 2021-08-04

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Abstract

Based on Sentinel-2A and Landsat-8 middle-resolution remote sensing data,combined with the three-phase forest inspection results and the annual update data of the "one map" of forest resources man-agement from 2018 to 2020,LSMA spectral hybrid analysis model and Li-Strahler geometric optics model were used to study the dynamic monitoring and empirical research on the changes of forest resources in 8 pilot counties of Qinghai Province.The results showed that,in the 15-month time span,a total of 693 change patterns with total area of 1286.3827 hm2 of forest land were monitored,which mainly occurred within the public welfare woodland and accounted for 97.48% of the total area.And the overall accuracy rate reached 87.30%,which met the requirements for dynamic monitoring of forest resources;Also,the smallest patch area that could be detected by the 10-m resolution satellite image was 0.1 hm2,but it was mainly concentrated in forest areas with greater canopy closure;Furthermore,on the basis of computer automatic detection,adding manual recognition could further improve the accuracy of change detection.

Key words： middle-resolution remote sensing data; dynamic monitoring of forest resources; change detection model; precision control

Cite this article

Yufang LAN , Xiaohua SHI , Shengli MA , Zhaoli WANG , Xin JIN . Application of Middle-Resolution Satellite Remote Sensing Technology in Dynamic Monitoring of Forest Resources[J]. Forest and Grassland Resources Research, 2021 , 0(3) : 154 -159 . DOI: 10.13466/j.cnki.lyzygl.2021.03.024

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