Jiannan Wang, Shihao Wen, Weiqiang Liu et al. (9 total)
2025-10-30
Frontiers in Plant Science Vol. 16
10.3389/fpls.2025.1549018
1 citations
摘要
Introduction In recent years, increasing management costs and declining market prices for Moso bamboo (Phyllostachys edulis) have led to the abandonment of many Moso bamboo forests, resulting in their gradual encroachment into neighboring broadleaf forests—a phenomenon that continues to intensify in subtropical regions of China. Moso bamboo invasion has significant impacts on ecosystem processes and functions; however, its effects on soil microbial nutrient limitations remain unclear. Methods He...
本研究旨在探究毛竹入侵对亚热带森林土壤微生物养分限制的影响。随着毛竹林的管理成本增加和市场价格下降，毛竹逐渐侵占邻近阔叶林，这种现象在中国亚热带地区日益严重，但其对土壤微生物养分限制的影响尚不清楚。
研究采用空间代替时间的方法，选取代表毛竹入侵四个阶段的地块，测量植物群落多样性、土壤理化性质以及与碳、氮、磷循环相关的胞外酶活性，以此来评估毛竹入侵对土壤微生物养分限制的影响。
结果表明，毛竹入侵降低了乔木层的多样性，但增加了灌木和草本层的多样性。随着入侵强度的增加，土壤总有机碳、总氮、有效磷和有效钾均显著降低。微生物碳限制增强，而磷限制部分缓解，这些变化与土壤养分含量和植物多样性的变化密切相关。