Articles | Volume 13, issue 11
https://doi.org/10.5194/essd-13-5337-2021
© Author(s) 2021. 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-13-5337-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Data description paper
| 
17 Nov 2021
Data description paper |
| 17 Nov 2021
| 17 Nov 2021
Patterns of nitrogen and phosphorus pools in terrestrial ecosystems in China
Yi-Wei Zhang
Institute of Ecology, College of Urban and Environmental Sciences and
Key Laboratory for Earth Surface Processes of the Ministry of Education,
Peking University, Beijing 100871, China
Yanpei Guo
Institute of Ecology, College of Urban and Environmental Sciences and
Key Laboratory for Earth Surface Processes of the Ministry of Education,
Peking University, Beijing 100871, China
Zhiyao Tang
CORRESPONDING AUTHOR
Institute of Ecology, College of Urban and Environmental Sciences and
Key Laboratory for Earth Surface Processes of the Ministry of Education,
Peking University, Beijing 100871, China
Yuhao Feng
Institute of Ecology, College of Urban and Environmental Sciences and
Key Laboratory for Earth Surface Processes of the Ministry of Education,
Peking University, Beijing 100871, China
Xinrong Zhu
Institute of Ecology, College of Urban and Environmental Sciences and
Key Laboratory for Earth Surface Processes of the Ministry of Education,
Peking University, Beijing 100871, China
Wenting Xu
State Key Laboratory of Vegetation and Environmental Change, Institute
of Botany, Chinese Academy of Sciences, Beijing 100093, China
Yongfei Bai
State Key Laboratory of Vegetation and Environmental Change, Institute
of Botany, Chinese Academy of Sciences, Beijing 100093, China
Guoyi Zhou
Institute of Ecology, Jiangsu Key Laboratory of Agricultural Meteorology, Nanjing University of Information Science & Technology,
Nanjing 210044, China
Zongqiang Xie
State Key Laboratory of Vegetation and Environmental Change, Institute
of Botany, Chinese Academy of Sciences, Beijing 100093, China
Jingyun Fang
Institute of Ecology, College of Urban and Environmental Sciences and
Key Laboratory for Earth Surface Processes of the Ministry of Education,
Peking University, Beijing 100871, China
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Quantifying China's forest biomass C pool is important in understanding C cycling in forests. However, most of studies on forest biomass C pool were limited to the period of 2004–2008. Here, we used a biomass expansion factor method to estimate C pool from 1977 to 2018. The results suggest that afforestation practices, forest growth, and environmental changes were the main drivers of increased C sink. Thus, this study provided an essential basis for achieving China's C neutrality target.
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Revised manuscript not accepted
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A dataset consists of 822 biomass equations specific to 167 shrub species in China was developed based on field measurement and literature review. The equations featured excellent goodness-of-fit (mean value of R2 and Fitness Index are larger than 0.8) and prediction precision (mean value of slope, R2 and Relative Error of the simple linear regression between predicted and measured data are 0.96, 0.85 and −4.1%). The dataset provides key parameters for terrestrial ecosystem biomass estimation.
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Short summary
Nitrogen (N) and phosphorus (P) are limiting nutrients for ecosystem productivity. For the first time, we mapped N and P densities of living plants, litter, and soil in forest, shrubland, and grassland ecosystems across China using random forest models based on a dataset of 4868 field sites. Our results depicted the spatial distribution pattern, the total pool, and the allocation among ecosystem components of N and P, which could benefit a more precise prediction of the carbon cycle.
Nitrogen (N) and phosphorus (P) are limiting nutrients for ecosystem productivity. For the first...
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