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[1]Gu Yuchen,Zhang Qian,An Yuchao,et al.Spatial and temporal distribution pattern of carbon storage in Populus L. with different ages in northern Jiangsu Province[J].Research of Soil and Water Conservation,2025,32(01):243-248.[doi:10.13869/j.cnki.rswc.2025.01.023]

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Spatial and temporal distribution pattern of carbon storage in Populus L. with different ages in northern Jiangsu Province

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 32 Number of periods: 2025 01 Page number: 243-248 Column: Public date: 2025-01-10

Title:: Spatial and temporal distribution pattern of carbon storage in Populus L. with different ages in northern Jiangsu Province

Author(s):: Gu Yuchen, Zhang Qian, An Yuchao, Wang Guobing; (College of Ecology and the Environment,Nanjing Forestry University,Co-Innovation Center for Sustainable Forestry in Southern China,Nanjing 210037,China)

Keywords:: carbon storage; poplar plantation; different age; northern Jiangsu

CLC:: S718.55

DOI:: 10.13869/j.cnki.rswc.2025.01.023

Abstract:: [Objective]This study aims to investigate the impact of different ages on the formation of productivity and spatial distribution patterns of aboveground and belowground carbon storage in Populus L. in northern Jiangsu, and to provide a scientific basis for enhancing the carbon sink function of poplar plantation ecosystems and for the management and operation of Populus L. [Methods]Ten poplar plantations of varying ages(2, 5, 6, 7, 8, 10, 14, 16, 17, and 26 years)were selected as experimental plots at Sihong Forest Farm in Suqian City, Jiangsu Province, with a stand density of 6 m × 6 m. Changes in net accumulation of carbon storage were analyzed across arbor layer, herb layer, and soil layer based on plantation age. Additionally, correlations between net accumulation of carbon storage in different layers and soil physical-chemical properties were examined. [Results](1)The carbon storage of arbor layer showed the characteristics of rapid net accumulation in the development of stand. Fitting two curves of annual average accumulation rate and successive accumulation rate shows that the optimal rotation period of poplar plantation is 15～20 years.(2)Net accumulation of soil organic carbon showed slow growth throughout plantation development while carbon storage in understory herb layer decreased over time.(3)Correlation analysis revealed positive associations between carbon storage levels within both soil and arbor layers with SOC, TN, NO^-₃-N, N/P and negative associations with AP, C/N, pH. [Conclusion]Applying nitrogen fertilizer during the growth of poplar plantations and conducting crop rotation during the optimal period of 15 to 20 years for soil carbon sequestration can help increase the carbon storage of the stand.

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Last Update: 2025-01-10