Articles | Volume 16, issue 2
https://doi.org/10.5194/essd-16-803-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-16-803-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
A 2020 forest age map for China with 30 m resolution
Kai Cheng
Institute of Remote Sensing and Geographic Information System, School of Earth and Space Sciences, Peking University, Beijing 100871, China
Yuling Chen
Institute of Remote Sensing and Geographic Information System, School of Earth and Space Sciences, Peking University, Beijing 100871, China
Tianyu Xiang
College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China
Haitao Yang
Institute of Remote Sensing and Geographic Information System, School of Earth and Space Sciences, Peking University, Beijing 100871, China
Weiyan Liu
State Forestry and Grassland Administration Key Laboratory of Forest Resources & Environmental Management, Beijing Forestry University, Beijing 100083, China
Yu Ren
Institute of Remote Sensing and Geographic Information System, School of Earth and Space Sciences, Peking University, Beijing 100871, China
Institute of Ecology, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
Hongcan Guan
School of Tropical Agriculture and Forestry, Hainan University, Haikou 570100, China
Tianyu Hu
State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
Qin Ma
School of Geography, Nanjing Normal University, Nanjing 210023, China
Qinghua Guo
CORRESPONDING AUTHOR
Institute of Remote Sensing and Geographic Information System, School of Earth and Space Sciences, Peking University, Beijing 100871, China
Institute of Ecology, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
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Cited
61 citations as recorded by crossref.
- Integrating Active and Passive Remote Sensing Data for Forest Age Estimation in Shangri-La City, China F. Cheng et al. https://doi.org/10.3390/f15091622
- China’s naturally regenerated forests currently have greater aboveground carbon accumulation rates than newly planted forests K. Cheng et al. https://doi.org/10.1038/s43247-025-02323-z
- Challenges and Strategies for Flood Forecasting in a Changing Environment J. Zhang et al. https://doi.org/10.3724/BNSFC-2025-0076
- A machine learning model for estimating tree age based on trunk radius and radial growth rate J. Yao et al. https://doi.org/10.1016/j.atech.2026.102525
- Mapping Forest Tree Species Using Sentinel-2 Time Series by Taking into Account Tree Age B. Yang et al. https://doi.org/10.3390/f15030474
- Optimized latin hypercube sampling for national-scale forest canopy height mapping S. Zhang et al. https://doi.org/10.1016/j.asr.2026.07.079
- A dual-pathway framework for mapping forest age in complex mining landscapes by multi-source remote sensing data and tree growth patterns T. Ma et al. https://doi.org/10.1080/15481603.2025.2565858
- Spatial Pattern of Forest Age in China Estimated by the Fusion of Multiscale Information Y. Xu et al. https://doi.org/10.3390/f15081290
- Time-series forest age estimation in Xinjiang based on forest disturbance and recovery detection L. Zhai et al. https://doi.org/10.1016/j.ecolind.2024.113043
- Spatiotemporal Dynamics and Driving Factors of Arbor Forest Carbon Stocks in Yunnan Province, China (2016–2020) J. Wu et al. https://doi.org/10.3390/f16071076
- Spatial patterns and future potential of tree species richness and structural diversity in China’s forests C. Cheng et al. https://doi.org/10.1038/s41559-025-02922-1
- Asymmetric response of forest aboveground biomass density to precipitation anomalies in China S. Ma et al. https://doi.org/10.1016/j.jaridenv.2026.105702
- Assessing the potential of species loss caused by deforestation in a mature subtropical broadleaf forest in central China J. Zhang et al. https://doi.org/10.1016/j.tfp.2024.100673
- CLM5-FATES模式对中国长白山针阔混交林分布的模拟 Y. Sui & C. Yang https://doi.org/10.3799/dqkx.2025.073
- Widespread Declining Sensitivity of Chinese Forests to Soil Moisture Under Climate Change (2001–2020) Y. Guan et al. https://doi.org/10.3390/f17010015
- Grain for Green Project dominates greening in afforested areas rather than that in grass revegetation areas of the Loess Plateau, China—using Deep Crossing LSTM Age network X. Wang et al. https://doi.org/10.1088/1748-9326/adec02
- Pan‐boreal mapping of forest age and implications for conservation Y. Liu et al. https://doi.org/10.1111/cobi.70346
- Spatiotemporal evolution and driving mechanisms of urban land use carbon metabolism in the Guangdong-Hong Kong-Macao Greater Bay Area from 2000 to 2023 S. Wang et al. https://doi.org/10.1007/s11430-025-1770-7
- Multi-Sensor Fusion and Machine Learning for Forest Age Mapping in Southeastern Tibet Z. Chi & K. Xu https://doi.org/10.3390/rs17111926
- Revealing the spatial distribution of crown base height across China based on close-range Lidar data Z. Yang et al. https://doi.org/10.1016/j.rse.2025.115030
- Understanding flash drought variations in China's planted and natural forests through machine learning counterfactual analysis X. Yang et al. https://doi.org/10.1016/j.fecs.2026.100462
- The invasive woodwasp Sirex noctilio Fabricius threatens pine forest carbon storage in China under climate change X. Liu et al. https://doi.org/10.1016/j.tfp.2026.101337
- An Approach for Mapping Ecotourism Suitability Using Machine Learning: A Case Study of Zhangjiajie, China Q. Huang et al. https://doi.org/10.3390/land13081188
- Mapping of Chinese fir plantations and stand age distribution in China with time series data Y. Li et al. https://doi.org/10.1016/j.isprsjprs.2026.04.031
- A global 30 m disturbance-recovery age dataset for young natural and planted forests (1985–2024) Y. Wang et al. https://doi.org/10.5194/essd-18-6225-2026
- Maximum carbon uptake potential through progressive management of plantation forests in Guangdong Province, China X. Li et al. https://doi.org/10.1038/s43247-024-01977-5
- Biophysical impact of forest age changes on land surface temperature in China Z. Zhang et al. https://doi.org/10.1016/j.scitotenv.2025.178445
- Improving Total Carbon Storage Estimation Using Multi-Source Remote Sensing H. Zhou et al. https://doi.org/10.3390/f16030453
- Uneven decline in the hydrological efficiency of China's natural and plantation forests X. Zhang et al. https://doi.org/10.5194/hess-30-3697-2026
- Phylogeny contributes to sustaining the functional diversity of temperate forests under environmental change Y. Gu et al. https://doi.org/10.1016/j.foreco.2026.123846
- Planted forests in China have higher variability than natural forests X. Wang et al. https://doi.org/10.1016/j.foreco.2026.123677
- 2000–2023年粤港澳大湾区城市土地利用碳代谢时空演变与驱动机制 少. 王 et al. https://doi.org/10.1360/SSTe-2025-0048
- A 2020 forest age map for China with 30 m resolution K. Cheng et al. https://doi.org/10.5194/essd-16-803-2024
- Spatiotemporal Dynamics of Forest Carbon Sinks in China’s Qinba Mountains: Insights from Sun-Induced Chlorophyll Fluorescence Remote Sensing Y. Lian et al. https://doi.org/10.3390/rs17081418
- China's annual forest age dataset at a 30 m spatial resolution from 1986 to 2022 R. Shang et al. https://doi.org/10.5194/essd-17-3219-2025
- Attributing long-term forest disturbance events across the northeast forest region of China by analyzing Landsat time-series observations with machine learning (1986–2023) X. Yin et al. https://doi.org/10.1016/j.ecolind.2025.113997
- Species trait dissimilarity dominates the mixing effects of forest plantations across stand development stages Q. Wang et al. https://doi.org/10.1016/j.fecs.2026.100497
- Abiotic Factors Exert a Predominant Influence on the Annual Aboveground Biomass Dynamics of Chinese Abies Mill. Forests Relative to Biotic Factors Z. Gao et al. https://doi.org/10.3390/f17040466
- Untangling the drivers of gross primary productivity in Chinese Fagaceae-dominated forests S. Yang et al. https://doi.org/10.3389/ffgc.2026.1693013
- Sustainable growth of China’s forest biomass carbon storage since 2002: Facing threats and loss risks Q. Lv et al. https://doi.org/10.1016/j.geosus.2025.100340
- Carbon sequestration potential of tree planting in China L. Yao et al. https://doi.org/10.1038/s41467-024-52785-6
- Spatio-temporal dynamics of future aboveground carbon stocks in natural forests of China Y. Zhang et al. https://doi.org/10.1016/j.fecs.2025.100293
- Network-enabled dynamic modeling unveils divergent land-carbon futures and governance pathways in a megaregion Z. Liu & S. Wang https://doi.org/10.1016/j.jclepro.2026.148185
- Automated machine learning integrating multi-source satellite observations to predict gross and net CO2 fluxes of coastal wetlands in China N. Ngoc Tu et al. https://doi.org/10.1088/1748-9326/ade731
- Natural forests show stronger carbon sink resistance to extreme drought than plantations in Northeast China Y. Ding et al. https://doi.org/10.1016/j.agrformet.2026.111266
- Forest carbon storage and sink estimates under different management scenarios in China from 2020 to 2100 J. Qin et al. https://doi.org/10.1016/j.scitotenv.2024.172076
- Ecosystem engineering and global changes are increasingly enhancing China’s terrestrial carbon sinks M. Zhang et al. https://doi.org/10.1016/j.resconrec.2025.108514
- Extraction of eucalyptus age and estimation of its aboveground biomass in China with the integration of empirical model and machine learning algorithm C. Tang et al. https://doi.org/10.1016/j.fecs.2026.100440
- Enhancing high-resolution forest stand mean height mapping in China through an individual tree-based approach with close-range lidar data Y. Chen et al. https://doi.org/10.5194/essd-16-5267-2024
- Edge effects on forest dynamics in China from 2000 to 2020: Evidence from satellite remote sensing J. Chen et al. https://doi.org/10.1016/j.rse.2025.115187
- Photon-Counting Lidar Remote Sensing: Current progress and future trends L. Wu et al. https://doi.org/10.1109/MGRS.2026.3660928
- Long-Term Forest Disturbance Mapping in the Qinling Mountains Using Landsat–Sentinel Annual Composites: A Regional Assessment of LandTrendr Performance Y. Wang et al. https://doi.org/10.3390/rs18111802
- A 20-year assessment of AGBD accumulation and its drivers in China's broad-leaved forests across temperature zones S. Ma et al. https://doi.org/10.1016/j.envres.2025.123344
- Disentangling the effects of the Grain for Green project on ecosystem carbon sequestration on the Loess Plateau J. Wang et al. https://doi.org/10.1016/j.catena.2025.109668
- 1 km annual forest cover and plant functional type dataset for China from 1981 to 2023 B. Liu et al. https://doi.org/10.5194/essd-18-1103-2026
- The impact of global change on the slow decline in human-wild boar (Sus scrofa) conflicts in central China from 2018 to 2022 T. Jiang et al. https://doi.org/10.1016/j.gecco.2025.e03790
- Contrasting drought vulnerability of natural and planted forests in drylands X. Dong et al. https://doi.org/10.1016/j.foreco.2025.123311
- How resilient are China’s forest conservation and restoration efforts against drought risks? Empirical evidence from nearly two decades of forest management in China N. Shuai et al. https://doi.org/10.1016/j.agrformet.2026.111110
- Remote Sensing Classification and Mapping of Forest Dominant Tree Species in the Three Gorges Reservoir Area of China Based on Sample Migration and Machine Learning W. Zhang et al. https://doi.org/10.3390/rs16142547
- Plantation expansion reshapes water and carbon patterns in Northeast China's forests: A high carbon sink at the cost of inefficient water use Y. Zhao et al. https://doi.org/10.1016/j.ecolind.2026.115026
- Afforestation as a mitigation strategy: countering climate-induced risk of forest carbon sink in China Y. Cao et al. https://doi.org/10.1186/s13021-025-00308-1
61 citations as recorded by crossref.
- Integrating Active and Passive Remote Sensing Data for Forest Age Estimation in Shangri-La City, China F. Cheng et al. https://doi.org/10.3390/f15091622
- China’s naturally regenerated forests currently have greater aboveground carbon accumulation rates than newly planted forests K. Cheng et al. https://doi.org/10.1038/s43247-025-02323-z
- Challenges and Strategies for Flood Forecasting in a Changing Environment J. Zhang et al. https://doi.org/10.3724/BNSFC-2025-0076
- A machine learning model for estimating tree age based on trunk radius and radial growth rate J. Yao et al. https://doi.org/10.1016/j.atech.2026.102525
- Mapping Forest Tree Species Using Sentinel-2 Time Series by Taking into Account Tree Age B. Yang et al. https://doi.org/10.3390/f15030474
- Optimized latin hypercube sampling for national-scale forest canopy height mapping S. Zhang et al. https://doi.org/10.1016/j.asr.2026.07.079
- A dual-pathway framework for mapping forest age in complex mining landscapes by multi-source remote sensing data and tree growth patterns T. Ma et al. https://doi.org/10.1080/15481603.2025.2565858
- Spatial Pattern of Forest Age in China Estimated by the Fusion of Multiscale Information Y. Xu et al. https://doi.org/10.3390/f15081290
- Time-series forest age estimation in Xinjiang based on forest disturbance and recovery detection L. Zhai et al. https://doi.org/10.1016/j.ecolind.2024.113043
- Spatiotemporal Dynamics and Driving Factors of Arbor Forest Carbon Stocks in Yunnan Province, China (2016–2020) J. Wu et al. https://doi.org/10.3390/f16071076
- Spatial patterns and future potential of tree species richness and structural diversity in China’s forests C. Cheng et al. https://doi.org/10.1038/s41559-025-02922-1
- Asymmetric response of forest aboveground biomass density to precipitation anomalies in China S. Ma et al. https://doi.org/10.1016/j.jaridenv.2026.105702
- Assessing the potential of species loss caused by deforestation in a mature subtropical broadleaf forest in central China J. Zhang et al. https://doi.org/10.1016/j.tfp.2024.100673
- CLM5-FATES模式对中国长白山针阔混交林分布的模拟 Y. Sui & C. Yang https://doi.org/10.3799/dqkx.2025.073
- Widespread Declining Sensitivity of Chinese Forests to Soil Moisture Under Climate Change (2001–2020) Y. Guan et al. https://doi.org/10.3390/f17010015
- Grain for Green Project dominates greening in afforested areas rather than that in grass revegetation areas of the Loess Plateau, China—using Deep Crossing LSTM Age network X. Wang et al. https://doi.org/10.1088/1748-9326/adec02
- Pan‐boreal mapping of forest age and implications for conservation Y. Liu et al. https://doi.org/10.1111/cobi.70346
- Spatiotemporal evolution and driving mechanisms of urban land use carbon metabolism in the Guangdong-Hong Kong-Macao Greater Bay Area from 2000 to 2023 S. Wang et al. https://doi.org/10.1007/s11430-025-1770-7
- Multi-Sensor Fusion and Machine Learning for Forest Age Mapping in Southeastern Tibet Z. Chi & K. Xu https://doi.org/10.3390/rs17111926
- Revealing the spatial distribution of crown base height across China based on close-range Lidar data Z. Yang et al. https://doi.org/10.1016/j.rse.2025.115030
- Understanding flash drought variations in China's planted and natural forests through machine learning counterfactual analysis X. Yang et al. https://doi.org/10.1016/j.fecs.2026.100462
- The invasive woodwasp Sirex noctilio Fabricius threatens pine forest carbon storage in China under climate change X. Liu et al. https://doi.org/10.1016/j.tfp.2026.101337
- An Approach for Mapping Ecotourism Suitability Using Machine Learning: A Case Study of Zhangjiajie, China Q. Huang et al. https://doi.org/10.3390/land13081188
- Mapping of Chinese fir plantations and stand age distribution in China with time series data Y. Li et al. https://doi.org/10.1016/j.isprsjprs.2026.04.031
- A global 30 m disturbance-recovery age dataset for young natural and planted forests (1985–2024) Y. Wang et al. https://doi.org/10.5194/essd-18-6225-2026
- Maximum carbon uptake potential through progressive management of plantation forests in Guangdong Province, China X. Li et al. https://doi.org/10.1038/s43247-024-01977-5
- Biophysical impact of forest age changes on land surface temperature in China Z. Zhang et al. https://doi.org/10.1016/j.scitotenv.2025.178445
- Improving Total Carbon Storage Estimation Using Multi-Source Remote Sensing H. Zhou et al. https://doi.org/10.3390/f16030453
- Uneven decline in the hydrological efficiency of China's natural and plantation forests X. Zhang et al. https://doi.org/10.5194/hess-30-3697-2026
- Phylogeny contributes to sustaining the functional diversity of temperate forests under environmental change Y. Gu et al. https://doi.org/10.1016/j.foreco.2026.123846
- Planted forests in China have higher variability than natural forests X. Wang et al. https://doi.org/10.1016/j.foreco.2026.123677
- 2000–2023年粤港澳大湾区城市土地利用碳代谢时空演变与驱动机制 少. 王 et al. https://doi.org/10.1360/SSTe-2025-0048
- A 2020 forest age map for China with 30 m resolution K. Cheng et al. https://doi.org/10.5194/essd-16-803-2024
- Spatiotemporal Dynamics of Forest Carbon Sinks in China’s Qinba Mountains: Insights from Sun-Induced Chlorophyll Fluorescence Remote Sensing Y. Lian et al. https://doi.org/10.3390/rs17081418
- China's annual forest age dataset at a 30 m spatial resolution from 1986 to 2022 R. Shang et al. https://doi.org/10.5194/essd-17-3219-2025
- Attributing long-term forest disturbance events across the northeast forest region of China by analyzing Landsat time-series observations with machine learning (1986–2023) X. Yin et al. https://doi.org/10.1016/j.ecolind.2025.113997
- Species trait dissimilarity dominates the mixing effects of forest plantations across stand development stages Q. Wang et al. https://doi.org/10.1016/j.fecs.2026.100497
- Abiotic Factors Exert a Predominant Influence on the Annual Aboveground Biomass Dynamics of Chinese Abies Mill. Forests Relative to Biotic Factors Z. Gao et al. https://doi.org/10.3390/f17040466
- Untangling the drivers of gross primary productivity in Chinese Fagaceae-dominated forests S. Yang et al. https://doi.org/10.3389/ffgc.2026.1693013
- Sustainable growth of China’s forest biomass carbon storage since 2002: Facing threats and loss risks Q. Lv et al. https://doi.org/10.1016/j.geosus.2025.100340
- Carbon sequestration potential of tree planting in China L. Yao et al. https://doi.org/10.1038/s41467-024-52785-6
- Spatio-temporal dynamics of future aboveground carbon stocks in natural forests of China Y. Zhang et al. https://doi.org/10.1016/j.fecs.2025.100293
- Network-enabled dynamic modeling unveils divergent land-carbon futures and governance pathways in a megaregion Z. Liu & S. Wang https://doi.org/10.1016/j.jclepro.2026.148185
- Automated machine learning integrating multi-source satellite observations to predict gross and net CO2 fluxes of coastal wetlands in China N. Ngoc Tu et al. https://doi.org/10.1088/1748-9326/ade731
- Natural forests show stronger carbon sink resistance to extreme drought than plantations in Northeast China Y. Ding et al. https://doi.org/10.1016/j.agrformet.2026.111266
- Forest carbon storage and sink estimates under different management scenarios in China from 2020 to 2100 J. Qin et al. https://doi.org/10.1016/j.scitotenv.2024.172076
- Ecosystem engineering and global changes are increasingly enhancing China’s terrestrial carbon sinks M. Zhang et al. https://doi.org/10.1016/j.resconrec.2025.108514
- Extraction of eucalyptus age and estimation of its aboveground biomass in China with the integration of empirical model and machine learning algorithm C. Tang et al. https://doi.org/10.1016/j.fecs.2026.100440
- Enhancing high-resolution forest stand mean height mapping in China through an individual tree-based approach with close-range lidar data Y. Chen et al. https://doi.org/10.5194/essd-16-5267-2024
- Edge effects on forest dynamics in China from 2000 to 2020: Evidence from satellite remote sensing J. Chen et al. https://doi.org/10.1016/j.rse.2025.115187
- Photon-Counting Lidar Remote Sensing: Current progress and future trends L. Wu et al. https://doi.org/10.1109/MGRS.2026.3660928
- Long-Term Forest Disturbance Mapping in the Qinling Mountains Using Landsat–Sentinel Annual Composites: A Regional Assessment of LandTrendr Performance Y. Wang et al. https://doi.org/10.3390/rs18111802
- A 20-year assessment of AGBD accumulation and its drivers in China's broad-leaved forests across temperature zones S. Ma et al. https://doi.org/10.1016/j.envres.2025.123344
- Disentangling the effects of the Grain for Green project on ecosystem carbon sequestration on the Loess Plateau J. Wang et al. https://doi.org/10.1016/j.catena.2025.109668
- 1 km annual forest cover and plant functional type dataset for China from 1981 to 2023 B. Liu et al. https://doi.org/10.5194/essd-18-1103-2026
- The impact of global change on the slow decline in human-wild boar (Sus scrofa) conflicts in central China from 2018 to 2022 T. Jiang et al. https://doi.org/10.1016/j.gecco.2025.e03790
- Contrasting drought vulnerability of natural and planted forests in drylands X. Dong et al. https://doi.org/10.1016/j.foreco.2025.123311
- How resilient are China’s forest conservation and restoration efforts against drought risks? Empirical evidence from nearly two decades of forest management in China N. Shuai et al. https://doi.org/10.1016/j.agrformet.2026.111110
- Remote Sensing Classification and Mapping of Forest Dominant Tree Species in the Three Gorges Reservoir Area of China Based on Sample Migration and Machine Learning W. Zhang et al. https://doi.org/10.3390/rs16142547
- Plantation expansion reshapes water and carbon patterns in Northeast China's forests: A high carbon sink at the cost of inefficient water use Y. Zhao et al. https://doi.org/10.1016/j.ecolind.2026.115026
- Afforestation as a mitigation strategy: countering climate-induced risk of forest carbon sink in China Y. Cao et al. https://doi.org/10.1186/s13021-025-00308-1
Saved (final revised paper)
Latest update: 07 Sep 2026
Short summary
To quantify forest carbon stock and its future potential accurately, we generated a 30 m resolution forest age map for China in 2020 using multisource remote sensing datasets based on machine learning and time series analysis approaches. Validation with independent field samples indicated that the mapped forest age had an R2 of 0.51--0.63. Nationally, the average forest age is 56.1 years (standard deviation of 32.7 years).
To quantify forest carbon stock and its future potential accurately, we generated a 30 m...
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