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广东省阳江市国有花滩林场四种典型人工林土壤碳储量特征
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Abstract:
人工林在森林碳汇中发挥着巨大的作用和潜力。为比较和评估不同树种人工林对土壤碳储量及其稳定性的影响，本文以广东省阳江市国有花滩林场四种典型人工林为研究对象，采集1米深度土层的土壤测定其总有机碳(TOC)和易氧化有机碳(ROC)含量及其储量，并通过土壤易氧化有机碳占总有机碳的比例评估四种林分的土壤碳稳定性。结果发现，四种林分土壤TOC储量表现为加勒比松 > 马占相思 > 尾叶桉 > 灰木莲，土壤ROC储量表现为灰木莲 > 加勒比松 > 马占相思 > 尾叶桉，土壤ROC/TOC比值则表现为灰木莲 > 加勒比松 > 马占相思 > 尾叶桉，这表明四种林分中，尾叶桉人工林土壤碳稳定性最高，灰木莲土壤碳稳定性最低。本研究结果可为评估粤西地区不同树种人工林土壤固碳潜力及其稳定性提供科学数据参考。
Plantation plays a great role and potential in forest carbon (C) sink. In order to compare and evaluate the effects of different tree species on soil C storage and its stability, this paper took four typical plantations in the Huatan National Forestry Farm in Yangjiang City, Guangdong Province as research objects, and collected soil at a depth of 1 m to determine the total organic C (TOC) and easily oxidized organic C (ROC) contents and storage, to evaluate the soil C stability of the four stands by the ratios of ROC to TOC. The results showed that the TOC storage of the four stands were Pinus caribaea > Acacia mangium > Eucalyptus urophylla > Magnolia sumatrana, the soil ROC storage were Magnolia sumatrana > Pinus caribaea > Acacia mangium > Eucalyptus urophylla, and the ROC/TOC ratios were Magnolia sumatrana > Pinus caribaea > Acacia mangium > Eucalyptus urophylla. This indicated that the soil C stability of the four stands was the highest in Eucalyptus urophylla plantation and the lowest in Magnolia sumatrana plantation. The results of this study can provide scientific data reference for evaluating soil C sequestration and its stability in different plantations in western Guangdong.
| [1] | 魏晓华, 郑吉, 刘国华, 刘世荣, 王伟峰, 刘苑秋, Blanco, A.J. 人工林碳汇潜力新概念及应用[J]. 生态学报, 2015, 35(12): 3881-3885. |
| [2] | 李敏. 森林土壤碳储量研究综述[J]. 林业调查规划, 2018, 43(4): 21-24+50. |
| [3] | 曾伟生, 蒲莹, 杨学云, 易善军. 我国5种主要人工林乔木层碳储量生长模型及其气候驱动分析[J]. 林业科学, 2023, 59(3): 21-30. |
| [4] | 程然然, 关晋宏, 张建国, 何秋月, 邓磊, 侯浩, 李国庆, 杜盛. 甘肃省5种典型人工林生态系统固碳现状与潜力[J]. 应用生态学报, 2017, 28(4): 1112-1120. |
| [5] | 朱美玲, 王旭, 王帅, 王文蕾, 邹耀进, 梁卿雅. 海南儋州橡胶树、桉树人工林碳储量及其动态变化[J]. 生态科学, 2016, 35(3): 43-51. |
| [6] | 张仕吉, 项文化, 孙伟军, 方晰. 中亚热带土地利用方式对土壤易氧化有机碳及碳库管理指数的影响[J]. 生态环境学报, 2016, 25(6): 911-919． |
| [7] | 朱志建, 姜培坤, 徐秋芳. 不同森林植被下土壤微生物量碳和易氧化态碳的比较[J]. 林业科学研究, 2006, 19(4): 523-526. |
| [8] | 王军广, 赵志忠, 王鹏, 吴雯, 吴慧. 海南岛东南部热带雨林土壤易氧化有机碳特征及影响因素[J]. 西部林业科学, 2023, 52(2): 106-112+131. |
| [9] | 邢维奋, 石珊奇, 薛杨, 王小燕, 林之盼. 海南乐东5种森林土壤有机碳储量的比较[J]. 热带农业科学, 2017, 37(5): 14-19. |
| [10] | 张雪莹, 陈小梅, 危晖, 林媚珍. 城市化对珠江三角洲存留常绿阔叶林土壤有机碳组分及其碳库管理指数的影响[J]. 水土保持学报, 2017, 31(4): 184-190. |
| [11] | Yu, P., Li, Y., Liu, S., Liu, J., Ding, Z., Ma, M. and Tang, X. (2022) Afforestation Influences Soil Organic Carbon and Its Fractions Associated with Aggregates in a Karst Region of Southwest China. Science of The To-tal Environment, 814, Article 152710. https://doi.org/10.1016/j.scitotenv.2021.152710 |
| [12] | Hu, Q., Thomas, B.W., Powlson. D., Hu. Y., Zhang. Y., Jun. X., Shi. X. and Zhang. Y. (2023) Soil Organic Carbon Fractions in Response to Soil, Environmental and Agronomic Factors under Cover Cropping Systems: A Global Meta-Analysis. Agriculture, Ecosystems & Environment, 355, Article 108591.
https://doi.org/10.1016/j.agee.2023.108591 |
| [13] | Wang, L., Luo, N., Shi, Q. and Sheng, M. (2023) Responses of Soil Labile Organic Carbon Fractions and Enzyme Activities to Long-Term Vegetation Restorations in the Karst Ecosys-tems, Southwest China. Ecological Engineering, 194, Article 107034. https://doi.org/10.1016/j.ecoleng.2023.107034 |
| [14] | 顾晓娟, 于耀泓, 刘悦, 吴梦佳, 刘林云慧, 莫其锋. 华南典型人工林对土壤易氧化有机碳的影响[J]. 森林与环境学报, 2023, 43(2): 145-151. |
