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加快土壤碳积累在一个多种植的森林与一个由更大的土壤动员驱动的单一农作物相比,加快土壤碳积累

Yue Li¹, Luhui Kuang¹, Zhijian Mou¹

¹Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; Key Laboratory of National Forestry and Grassland Administration on Plant Conservation and Utilization in Southern China, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; Guangdong Heshan National Observation and Research Station for Forest Ecosystem, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China.

Journal of environmental management

|November 12, 2025

概括

热带植树增加了土壤有机碳 (SOC) 通过提高 (P) 的可用性和微生物活动. 与单一种植相比,森林中的树木多样性显著增加了SOC封存.

科学领域:

热带生态学热带生态学
土壤科学土壤科学
生物地质化学生物地质化学

背景情况:

植树增加了土壤有机碳 (SOC) 的捕获.
土壤营养素,微生物属性和SOC成分在热带森林植被中的作用尚未完全理解.

研究的目的:

调查土壤营养物质 (特别是) 和不同生物起源的SOC成分和热带林业中矿物质协会之间的相关性.
探索微生物调解土壤营养物质的可用性,调节SOC积累.

主要方法:

沿着热带恢复时间序列检查的土壤 (荒地,单一种植,多种森林,自然森林).
评估SOC,P可用性 (包括单与二酸盐的比率) 和SOC化学.
分析了微生物P限制和社区组成的变化.

主要成果:

60年后,SOC在多种森林中增加了68.2%,而在单种植园中增加了36.5%.
多种森林显示了更高的P可用性和更不稳定的SOC.
植树增加了生物SOC成分,增强了植物衍生C,减少了与矿物相关的C.

结论:

土壤P的可用性和微生物过程是热带林业中SOC积累的关键驱动因素.
树木的多样性对于有效的森林恢复和SOC积累至关重要.
未来的管理应优先考虑树木混合和监测土壤P,以增强微生物活动和SOC.

关键词:

限制微生物的限制营养素的获取营养素的获取土壤微生物群落的组成土壤微生物群落的组成土壤有机碳土壤有机碳热带林植被热带林植被

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