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树木的稳定营养利用促进了在砍伐后在韩国松树和宽叶混合森林中社区生物质的积累

Zhaopeng Song¹, Hongyan Liu², Liang Shi³

¹MEE Key Laboratory of Regional Eco-process and Function Assessment, State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, 8 Dayangfang, Beijing, 100012, China.

Journal of environmental management

|December 27, 2024

概括

伐木后的森林恢复从稳定的营养利用中获益,特别是树木中的使用和草药中的使用,推动生物质的积累和提高森林的可持续性.

科学领域:

生态生态学生态生态学
林业林业林业林业林业
植物生理学植物生理学

背景情况:

受到干扰的温带森林面临着波动的营养环境,影响社区生产力.
在有限的营养物质下,植物对生物质积累的策略,特别是营养物质利用的灵活性,仍然不太了解.

研究的目的:

研究植物营养物质利用机制如何影响社区生物质积累在砍伐后森林恢复.
评估营养稳态 (H) 在不同功能群体和恢复阶段生物质积累中的作用.

主要方法:

研究了28个韩国松树和宽叶混合森林在各种恢复阶段 (砍伐后6-55年) 和未砍伐的对照.
对234种植物物种的 (H_N), (H_P) 和它们的比率 (H_N:P) 的量化叶子营养稳态.
与社区生物质,土壤营养素和物种多样性相关的营养素H值.

主要成果:

在社区层面,叶子营养平衡 (H_N,H_P,H_N:P) 在砍伐后的36至45年间达到顶峰.
在营养恒温和生物质积累之间发现了强烈的正相关性.
树木稳定的利用率 (25.05%的贡献) 和草药的灵活利用率 (37.97%的贡献) 是生物质的关键驱动因素.

结论:

稳定的营养利用,特别是高平衡,对于促进社区生物质在砍伐森林中的积累至关重要.
营养平衡显著解释了树木,草药和整个社区生物质的积累.
研究结果强调了营养利用效率对于评估和增强森林恢复和可持续性的重要性.

关键词:

生物质积累生物质的积累.营养素的恒常性是营养素的恒常性.选择性的记录记录.温带森林温带森林是一个温带森林.

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