Zhifeng Shen , Xin Wang , Faming Wang , Jian Li , Jing Sun , Xiaoming Zou , Yiqing Li , Suli Li , Na Wang , Shenglei Fu , Weixin Zhang
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Similarly, neither N addition nor P addition changed the stoichiometric traits of <em>P. corethrurus.</em> However, over the past decade, the abundance, biomass, and carbon (C), N, and P concentrations in the tissues of <em>P. corethrurus</em> have increased. A strong positive correlation between <em>P. corethrurus</em> population size and soil gram-negative (G<sup>−</sup>) bacteria biomass was observed, suggesting that <em>P. corethrurus</em> 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.</p></div>","PeriodicalId":21888,"journal":{"name":"Soil Biology & Biochemistry","volume":null,"pages":null},"PeriodicalIF":9.8000,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Fourteen-year field experiment reveals neutral effects of N and P deposition on abundance and stoichiometric traits of the earthworm Pontoscolex corethrurus in tropical plantations\",\"authors\":\"Zhifeng Shen , Xin Wang , Faming Wang , Jian Li , Jing Sun , Xiaoming Zou , Yiqing Li , Suli Li , Na Wang , Shenglei Fu , Weixin Zhang\",\"doi\":\"10.1016/j.soilbio.2024.109540\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>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 <em>Pontoscolex corethrurus</em> was dominant, and it did not respond to exogenous N input. Moreover, P addition only increased the abundance of <em>P. corethrurus</em> after 14 years. Similarly, neither N addition nor P addition changed the stoichiometric traits of <em>P. corethrurus.</em> However, over the past decade, the abundance, biomass, and carbon (C), N, and P concentrations in the tissues of <em>P. corethrurus</em> have increased. A strong positive correlation between <em>P. corethrurus</em> population size and soil gram-negative (G<sup>−</sup>) bacteria biomass was observed, suggesting that <em>P. corethrurus</em> 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.</p></div>\",\"PeriodicalId\":21888,\"journal\":{\"name\":\"Soil Biology & Biochemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":9.8000,\"publicationDate\":\"2024-07-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Soil Biology & Biochemistry\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0038071724002293\",\"RegionNum\":1,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"SOIL SCIENCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Soil Biology & Biochemistry","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0038071724002293","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"SOIL SCIENCE","Score":null,"Total":0}
引用次数: 0
摘要
热带森林植树造林在减缓气候变化方面发挥着重要作用。探索氮(N)和磷(P)沉积对蚯蚓群落的影响对于了解热带森林对全球变化的贡献意义重大。我们在一个有 50 年树龄的热带人工林站进行了为期 14 年的野外实验,模拟氮和磷的沉积。我们发现,泛热带广泛分布的外来蚯蚓物种是优势物种,它对外源氮的输入没有反应。此外,添加 P 只在 14 年后增加了蚯蚓的数量。然而,在过去的十年中,蚯蚓的数量、生物量以及组织中碳(C)、氮和磷的浓度都有所增加。观察到种群数量与土壤革兰氏阴性菌(G)生物量之间存在很强的正相关性,这表明土壤细菌通道可能会使其受益。这项研究证实,从与蚯蚓相关的地下过程来看,非天然热带土地可能对氮和磷的沉积具有抵抗力,这将有助于充分了解植物-土壤生物区系的反馈及其对热带种植园发展和减缓全球气候变化的贡献。
Fourteen-year field experiment reveals neutral effects of N and P deposition on abundance and stoichiometric traits of the earthworm Pontoscolex corethrurus in tropical plantations
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 Pontoscolex corethrurus was dominant, and it did not respond to exogenous N input. Moreover, P addition only increased the abundance of P. corethrurus after 14 years. Similarly, neither N addition nor P addition changed the stoichiometric traits of P. corethrurus. However, over the past decade, the abundance, biomass, and carbon (C), N, and P concentrations in the tissues of P. corethrurus have increased. A strong positive correlation between P. corethrurus population size and soil gram-negative (G−) bacteria biomass was observed, suggesting that P. corethrurus 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.
期刊介绍:
Soil Biology & Biochemistry publishes original research articles of international significance focusing on biological processes in soil and their applications to soil and environmental quality. Major topics include the ecology and biochemical processes of soil organisms, their effects on the environment, and interactions with plants. The journal also welcomes state-of-the-art reviews and discussions on contemporary research in soil biology and biochemistry.