The afforestation of tropical forests plays an important role in mitigating climate change. Exploring the impacts of nitrogen (N) and phosphorus (P) deposition on earthworm communities is significant for understanding the contributions of tropical forests to global change. A 14-year field experiment simulating N and P deposition at a station with 50-year-old tropical plantations was conducted. We found that the pantropical widespread exotic earthworm species was dominant, and it did not respond to exogenous N input. Moreover, P addition only increased the abundance of after 14 years. Similarly, neither N addition nor P addition changed the stoichiometric traits of However, over the past decade, the abundance, biomass, and carbon (C), N, and P concentrations in the tissues of have increased. A strong positive correlation between population size and soil gram-negative (G) bacteria biomass was observed, suggesting that may benefit from the soil bacterial channel. This study ascertained that non-natural tropical lands may be resistant to N and P deposition in terms of earthworm related belowground processes, which would be helpful for fully understanding plant-soil biota feedback and their contributions to tropical plantation development and the mitigation of global climate change.

中文翻译：

---

十四年的田间实验揭示了氮和磷沉降对热带种植园中蚯蚓 Pontoscolex corethrurus 的丰度和化学计量特征的中性影响


热带森林植树造林对于减缓气候变化具有重要作用。探索氮（N）和磷（P）沉降对蚯蚓群落的影响对于了解热带森林对全球变化的贡献具有重要意义。在拥有 50 年树龄的热带人工林的监测站进行了为期 14 年的模拟氮磷沉降的现场实验。我们发现泛热带广泛分布的外来蚯蚓物种占主导地位，并且它对外源氮输入没有反应。而且，P的添加仅在14年后才增加了丰度。同样，氮的添加和磷的添加都没有改变 的化学计量特征。然而，在过去的十年中，组织中的丰度、生物量和碳 (C)、N 和 P 浓度有所增加。观察到种群规模与土壤革兰氏阴性（G）细菌生物量之间存在很强的正相关性，这表明可能受益于土壤细菌通道。本研究确定非自然热带土地可能在与蚯蚓相关的地下过程中抵抗氮和磷沉积，这将有助于充分了解植物-土壤生物群的反馈及其对热带种植园发展和缓解全球气候的贡献改变。