| Imbalance of inter-provincial forest carbon sequestration rate from 2010 to 2060 in China and its regulation strategy |
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| 作者姓名： | CAI Weixiang XU Li LI Mingxu SUN Osbert Jianxin HE Nianpeng |
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| 作者单位： | 1. School of Ecology and Nature Conservation, Beijing Forestry University;2. Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, CAS;3. University of Chinese Academy of Sciences;4. Center for Ecological Research, Northeast Forestry University |
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| 基金项目： | National Natural Science Foundation of China(42141004);National Natural Science Foundation of China(32171544);National Natural Science Foundation of China(31988102) |
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| 摘 要： | Forest ecosystem, as a predominant component of terrestrial ecosystems in view of carbon sinks, has a high potential for carbon sequestration. Accurately estimating the carbon sequestration rate in forest ecosystems at provincial level, is a prerequisite and basis for scientifically formulating the technical approaches of carbon neutrality and the associated regulatory policies in China. However, few researches on future carbon sequestration rates(CSRs) for Chinese forest ecosystems for provinci...
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| 收稿时间： | 2021-11-15 |
Imbalance of inter-provincial forest carbon sequestration rate from 2010 to 2060 in China and its regulation strategy |
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| CAI Weixiang,XU Li,LI Mingxu,SUN Osbert Jianxin,HE Nianpeng.Imbalance of inter-provincial forest carbon sequestration rate from 2010 to 2060 in China and its regulation strategy[J].Journal of Geographical Sciences,2023,33(1):3-17. |
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| Authors: | CAI Weixiang XU Li LI Mingxu SUN Osbert Jianxin HE Nianpeng |
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| Institution: | 1. School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China2. Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China3. University of Chinese Academy of Sciences, Beijing 100049, China4. Center for Ecological Research, Northeast Forestry University, Harbin 150040, China |
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| Abstract: | Forest ecosystem, as a predominant component of terrestrial ecosystems in view of carbon sinks, has a high potential for carbon sequestration. Accurately estimating the carbon sequestration rate in forest ecosystems at provincial level, is a prerequisite and basis for scientifically formulating the technical approaches of carbon neutrality and the associated regulatory policies in China. However, few researches on future carbon sequestration rates (CSRs) for Chinese forest ecosystems for provincial-level regions (hereafter province) have been reported, especially for forest soils. In this study, we quantitatively assessed the carbon sequestration rates of existing forest ecosystems of all the provinces from 2010 to 2060 using the Forest Carbon Sequestration model (FCS), in combination with large quantities of field-measured data in China under three future climate scenarios (RCP2.6, RCP4.5, and RCP8.5). Results showed that CSRs across provinces varied from 0.01 TgC a-1 to 36.74 TgC a-1, with a mean of 10.09 ± 0.43 TgC a-1. Inter-provincial differences have been observed in forest CSRs. Regarding the spatial variations in CSRs on a unit area basis within provinces, the eastern region provinces have a larger capacity for sequestration than the western region, while the western region has greater CSR per unit GDP and per capita. Moreover, there are significant negative correlations between the CSRs per capita in each province and the corresponding GDP per capita, under the assumption that GDP per capita is constant in the future across provinces. In summary, there is a significant regional imbalance in CSR among provinces. Special technological and policy interventions are required to realize carbon sink potential sustainably. An overlap in China’s poorer areas and areas with stronger carbon sinks has indicated that existing policies to support traditional carbon trading are insufficient. Regulatory measures such as “regional carbon compensation” must be adopted urgently in line with the Chinese characteristics, so that people in western or underdeveloped regions can consciously strengthen forest protection and enhance forest carbon sinks through coordinated regional development while ensuring that China’s forests play a greater role in carbon neutrality strategies. |
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| Keywords: | forest carbon cycle carbon sequestration carbon sink imbalance sustainability carbon neutrality carbon trading |
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