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Advances in Estimating Aboveground Biomass Based on Multi-source Remote Sensing...
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Advances in Estimating Aboveground Biomass Based on Multi-source Remote Sensing Data

A special issue of Remote Sensing (ISSN 2072-4292). This special issue belongs to the section "Biogeosciences Remote Sensing".

Deadline for manuscript submissions: 15 April 2025 | Viewed by 3121

Special Issue Editors

Dr. Shaobo Sun

E-Mail Website
Guest Editor
Institute of Surface-Earth System Science, Tianjin University, Tianjin, China
Interests: remote sensing in ecology; carbon fluxes; GEE; ecosystem carbon stocks
Prof. Dr. Xufeng Wang

E-Mail Website
Guest Editor
Key Laboratory of Remote Sensing of Gansu Province, Heihe Remote Sensing Experimental Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
Interests: vegetation responses to climate change; vegetation remote sensing; drought detection
Special Issues, Collections and Topics in MDPI journals
Dr. Kai Liu

E-Mail Website
Guest Editor
School of Geography and Planning, Center of Integrated Geographic Information Analysis, Sun Yat-sen University, Guangzhou 510275, China
Interests: UAV; LiDAR; machine learning; vegetation index; leaf area index; mangrove forests; WorldView-2 imagery; red-edge band; variable importance

Special Issue Information

Dear Colleagues,

Above-ground biomass（AGB) is a critical proxy for productivity and the most dynamic terrestrial carbon pool. The accurate determination of AGB is critical in monitoring plants’ growth and assessing terrestrial carbon budgets. Remote sensing provides the most practical and effective approach for estimating AGB from a local to a global scale. In particular, the emerging open and high spatiotemporal resolution microwave and optical sensors (such as the Sentinel sensors) and the development of LiDAR and unmanned aerial vehicles (UAVs) allows an unprecedented opportunity for the accurate estimation of AGB. Considerable amounts of multi-source remote sensing data and popular cloud computing platforms such as Google Earth Engine (GEE) make it easy to rapidly monitor AGB in different ecosystems at low costs.  AGB estimates based on multi-source remote sensing data, new algorithms and well-calibrated models have a wide range of applications, such as assessing terrestrial carbon budgets, monitoring crop growth, and examining the impacts of climate change and human activities on vegetation.

The Special Issue aims to call for papers on recent advances to estimate the AGB of different ecosystems (such as forests, grasslands, croplands, and wetlands) using multi-source remote sensing data at different scales

Topics may include but are not limited to model and algorithm developments, the assessment of different methods, responses of the AGB to climate change and human activities, and applications of remotely sensed AGB data.

Dr. Shaobo Sun
Prof. Dr. Xufeng Wang
Dr. Kai Liu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Remote Sensing is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • above ground biomass
  • LiDAR
  • machine learning
  • multi-source remote sensing
  • vegetation carbon stocks
  • unmanned aerial vehicle (UAV)

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Published Papers (1 paper)

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Research

19 pages, 5297 KiB  
Article
Estimating the Aboveground Biomass of Various Forest Types with High Heterogeneity at the Provincial Scale Based on Multi-Source Data
by Tianbao Huang, Guanglong Ou, Yong Wu, Xiaoli Zhang, Zihao Liu, Hui Xu, Xiongwei Xu, Zhenghui Wang and Can Xu
Remote Sens. 2023, 15(14), 3550; https://doi.org/10.3390/rs15143550 - 14 Jul 2023
Cited by 16 | Viewed by 2516
Abstract
It is important to improve the accuracy of models estimating aboveground biomass (AGB) in large areas with complex geography and high forest heterogeneity. In this study, k-nearest neighbors (k-NN), gradient boosting machine (GBM), random forest (RF), quantile random forest (QRF), regularized random forest [...] Read more.
It is important to improve the accuracy of models estimating aboveground biomass (AGB) in large areas with complex geography and high forest heterogeneity. In this study, k-nearest neighbors (k-NN), gradient boosting machine (GBM), random forest (RF), quantile random forest (QRF), regularized random forest (RRF), and Bayesian regularization neural network (BRNN) machine learning algorithms were constructed to estimate the AGB of four forest types based on environmental factors and the variables selected by the Boruta algorithm in Yunnan Province and using integrated Landsat 8 OLI and Sentinel 2A images. The results showed that (1) DEM was the most important variable for estimating the AGB of coniferous forests, evergreen broadleaved forests, deciduous broadleaved forests, and mixed forests; while the vegetation index was the most important variable for estimating deciduous broadleaved forests, the climatic factors had a higher variable importance for estimating coniferous and mixed forests, and texture features and vegetation index had a higher variable importance for estimating evergreen broadleaved forests. (2) In terms of specific model performance for the four forest types, RRF was the best model both in estimating the AGB of coniferous forests and mixed forests; the R2 and RMSE for coniferous forests were 0.63 and 43.23 Mg ha−1, respectively, and the R2 and RMSE for mixed forests were 0.56 and 47.79 Mg ha−1, respectively. BRNN performed the best in estimating the AGB of evergreen broadleaved forests; the R2 was 0.53 and the RMSE was 68.16 Mg ha−1. QRF was the best in estimating the AGB of deciduous broadleaved forests, with R2 of 0.43 and RMSE of 45.09 Mg ha−1. (3) RRF was the best model for the four forest types according to the mean values, with R2 and RMSE of 0.503 and 52.335 Mg ha−1, respectively. In conclusion, different variables and suitable models should be considered when estimating the AGB of different forest types. This study could provide a reference for the estimation of forest AGB based on remote sensing in complex terrain areas with a high degree of forest heterogeneity. Full article
(This article belongs to the Special Issue Advances in Estimating Aboveground Biomass Based on Multi-source Remote Sensing Data)
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