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在洛斯山区的Pinus tabuliformis森林中的土壤演变和驱动因素

Junzhe Li¹, Fangfang Qiang¹, Ning Ai¹

¹College of Life Science, Yan'an University/Key Laboratory of Applied Ecology of Loess Plateau, (Yan'an University), Yan'an, 716000, Shaanxi Province, China.

Journal of environmental management

|November 5, 2025

概括

在Loess山区的植被恢复加强了土壤网络,并在22年内改善了土壤质量. 土壤动物最初影响土壤,但随着恢复的进展,草本植物变得越来越有影响力.

科学领域:

生态恢复生态恢复
土壤科学土壤科学
社区生态学社区生态学

背景情况:

了解植被恢复对土壤和生物群落的长期影响对于像洛斯山区这样的退化地区至关重要.
洛斯山区严重的土壤侵蚀需要对生态系统可持续性和恢复有效性的研究.
在长期的生态恢复过程中,土壤指标和生物群体的共同进化存在知识差距.

研究的目的:

在Pinus tabuliformis森林恢复的22年时间序列中评估土壤的物理化学指标,动物群落和草本动态.
在整个恢复过程中调查土壤动物和草本群落对土壤指标的影响.
评估恢复时间对土壤质量和社区结构的长期影响.

主要方法:

在洛斯山区的Pinus tabuliformis森林的时间序列研究 (1-22年).
包括恢复前 (PRG) 和22年天然草原 (AG) 作为对照组.
分析土壤的物理化学指标,土壤动物群体和草本植物动态.

主要成果:

恢复加强了土壤指标之间的相互连接,创造了强大的网络结构,而草原显示了碎片化.
土壤动物最初影响了土壤的特性,草本社区的丰富性随着时间的推移变得越来越重要.
恢复持续时间对土壤质量指数,碳池,电导率和有机物有积极影响,增强了土壤的物理性质和动物多样性.
随着恢复时间的增加,观察到对草本社区丰富性的负面影响.

结论:

洛斯山区的长期植被恢复增强了土壤凝聚力,质量和生物多样性.
土壤动物和草本群落对土壤指标的相对影响在恢复过程中发生变化.
结果为评估生态效益和指导类似退化景观的高质量恢复提供了理论基础.

关键词:

网络分析网络分析恢复恢复恢复恢复土壤生物群的生物群.土壤质量指数土壤质量指数结构方程建模结构方程建模

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