Biology and Fertility of Soils最新文献_第4页

A new modeling approach for denitrification taking internal chemical gradients into account 一种考虑内部化学梯度的反硝化建模新方法

IF 6.5 1区农林科学

Biology and Fertility of Soils Pub Date : 2024-12-04 DOI: 10.1007/s00374-024-01881-2

Johannes Schulze, Jan Zawallich, Olaf Ippisch

引用次数: 0

Vertical migration of bacteria bearing antibiotic resistance genes and heavy metal resistance genes through a soil profile as affected by manure 携带抗生素抗性基因和重金属抗性基因的细菌在受粪肥影响的土壤剖面中的垂直迁移

IF 6.5 1区农林科学

Biology and Fertility of Soils Pub Date : 2024-11-28 DOI: 10.1007/s00374-024-01878-x

Junwei Liang, Yurou Han, Jian Zhao, Jiangjie He, Qizhong Huang, Yimo Zhang, Jizhen Liu, Yucheng Chen, Weihong Xu

{"title":"Vertical migration of bacteria bearing antibiotic resistance genes and heavy metal resistance genes through a soil profile as affected by manure","authors":"Junwei Liang, Yurou Han, Jian Zhao, Jiangjie He, Qizhong Huang, Yimo Zhang, Jizhen Liu, Yucheng Chen, Weihong Xu","doi":"10.1007/s00374-024-01878-x","DOIUrl":"https://doi.org/10.1007/s00374-024-01878-x","url":null,"abstract":"Untreated chicken manure causes a large amount of antibiotics and heavy metals to enter the soil environment. Currently, there is limited research on antibiotic resistance genes (ARGs) and heavy metal resistance genes (HMRGs) in soil profile. In this study, we conducted a preliminary investigation on the soil profile of vegetable field contaminated by chicken manure. The results showed that the absolute abundance of some resistance genes was higher at the 20–60 cm. Subsequently, we further analyzed the vertical migration of bacteria bearing ARGs and HMRGs through a soil profile as affected by manure using metagenomic sequencing. The findings revealed that long-term application of chicken manure significantly increased the alpha (α) diversity of the 0–20 cm soil layer ARGs and HMRGs, the plasmids relative abundance of soil profile substantially increased. Furthermore, long-term application of chicken manure changed the community composition of the 0–20 cm soil layer resistance genes, and also affected the community composition of the 20–40 cm soil layer with the increase of manure rates. Additionally, long-term application of chicken manure significantly increased the α diversity of the 0–20 cm soil layer bacteria. Structural equation modeling (SEM) further analysis revealed that bacterial relative abundance was the primary driving factor for the distribution of ARGs in vertical space, while mobile genetic elements (MGEs) were the main driving factor for HMRGs. This study strengthens our understanding of the vertical spatial distribution of soil resistance genes following long-term application of chicken manure, and also provides the basis for the management of subterranean environment.","PeriodicalId":9210,"journal":{"name":"Biology and Fertility of Soils","volume":"46 1","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142753760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The role of tillage practices in wheat straw decomposition and shaping the associated microbial communities in Endocalcaric– Epigleyic Cambisol soil 耕作方式在小麦秸秆分解过程中的作用以及对内钙质-外钙质寒武土壤中相关微生物群落的影响

IF 6.5 1区农林科学

Biology and Fertility of Soils Pub Date : 2024-11-27 DOI: 10.1007/s00374-024-01879-w

Arman Shamshitov, Gražina Kadžienė, Francesco Pini, Skaidrė Supronienė

{"title":"The role of tillage practices in wheat straw decomposition and shaping the associated microbial communities in Endocalcaric– Epigleyic Cambisol soil","authors":"Arman Shamshitov, Gražina Kadžienė, Francesco Pini, Skaidrė Supronienė","doi":"10.1007/s00374-024-01879-w","DOIUrl":"https://doi.org/10.1007/s00374-024-01879-w","url":null,"abstract":"The recalcitrant nature of wheat (Triticum aestivum L.) straw, one of the most abundant agricultural residues, presents challenges for efficient decomposition, limiting nutrient release and organic matter retention in soils. Understanding the effects of tillage practices on wheat straw decomposition and shaping associated microbial communities is essential for enhancing microbial-mediated breakdown and optimizing residue management to enhance soil health, nutrient cycling, and sustainability in agricultural systems. In this study, the effect of different tillage practices on wheat straw decomposition and associated bacterial and fungal community compositions during non-growing and growing seasons were studied. To simulate tillage, litter bags filled with wheat straw were placed at respective soil depths for conventional (22–24 cm) and reduced (8–10 cm) tillage, and on the surface for the no-tillage treatment. The subsets of the litter bags were randomly retrieved after 145 days and at the end of the experiment after 290 days. Statistical analysis revealed that tillage treatments significantly influenced the decomposition rate and nutrient release over time. Overall, the alpha diversity of the decomposition-associated microbial community was not substantially affected by different tillage treatments, while beta diversity exhibited distinct microbial community compositions in relation to tillage practices. The results of this study contribute to a deeper understanding of wheat straw decomposition-associated bacterial and fungal communities’ response to different tillage treatments, with observations made at two distinct sampling times (non-growing and growing seasons) under certain edaphic and climatic conditions.","PeriodicalId":9210,"journal":{"name":"Biology and Fertility of Soils","volume":"63 1","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142718681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rhizosphere bacteriome assemblage following initial fluctuations is delayed with nitrogen additions in tomato seedlings 番茄幼苗根瘤菌群在初始波动后的集合随氮素添加而延迟

IF 6.5 1区农林科学

Biology and Fertility of Soils Pub Date : 2024-11-27 DOI: 10.1007/s00374-024-01882-1

Mary M. Dixon, Carley R. Rohrbaugh, Daniel K. Manter, Jorge A. Delgado, Jorge M. Vivanco

{"title":"Rhizosphere bacteriome assemblage following initial fluctuations is delayed with nitrogen additions in tomato seedlings","authors":"Mary M. Dixon, Carley R. Rohrbaugh, Daniel K. Manter, Jorge A. Delgado, Jorge M. Vivanco","doi":"10.1007/s00374-024-01882-1","DOIUrl":"https://doi.org/10.1007/s00374-024-01882-1","url":null,"abstract":"Little is known about how seedlings sense new soil environments and how the rhizosphere bacteriome changes accordingly. It is important to elucidate these changes to better understand feedbacks that contribute to nutrient cycling and plant fitness. Here, we explored how the tomato rhizosphere bacteriome developed weekly throughout the vegetative developmental stage and with variable nitrogen (N) fertilizer additions. Bacterial communities expressing diverse functions highly fluctuated in the first and second week after planting, and these fluctuations diminished progressively after the third week. Bacteria capable of biocontrol stabilized after the fourth week, while those involved in nutrient cycling continued to change in abundance week-to-week. Thus, bacterial specialization may be concomitant with bacteriome stabilization. With N fertilizer application, bacteria with diverse functions continued to fluctuate through the fifth week. However, regardless of fertilization, bacterial communities stabilized by the sixth week. It may take two weeks for roots to select for soil bacteria to assemble a specific rhizosphere bacteriome, but when N is applied, this period extends. Subsequently, roots may select for bacteria that are already established in the rhizosphere rather than from the bulk soil. This study showcases the dynamics of rhizosphere assemblage and how this process is affected by N additions.","PeriodicalId":9210,"journal":{"name":"Biology and Fertility of Soils","volume":"37 1","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142718679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Soil legacies left by a 20-year eucalypt plantation and a secondary vegetation covers on young eucalypt plants and plant-soil feedback 为期 20 年的桉树种植园和次生植被对桉树幼苗和植物-土壤反馈的影响

IF 6.5 1区农林科学

Biology and Fertility of Soils Pub Date : 2024-11-25 DOI: 10.1007/s00374-024-01880-3

Ellen Aparecida Nunes, Gabrielle Henriquetto Cassiano, Adriana Parada Dias da Silveira, Sara Adrián López de Andrade

{"title":"Soil legacies left by a 20-year eucalypt plantation and a secondary vegetation covers on young eucalypt plants and plant-soil feedback","authors":"Ellen Aparecida Nunes, Gabrielle Henriquetto Cassiano, Adriana Parada Dias da Silveira, Sara Adrián López de Andrade","doi":"10.1007/s00374-024-01880-3","DOIUrl":"https://doi.org/10.1007/s00374-024-01880-3","url":null,"abstract":"Plants can modify soil properties over time through interactions with soil microorganisms, creating a legacy that may influence subsequent plant growth. This study investigates how soil vegetation covers affect growth and nutrient uptake and phosphorus (P) and nitrogen (N)use efficiencies in two eucalypt species, and the impact of new plant cultivation on soil microbial traits. Using a greenhouse microcosm experiment, we compared soils from a 20-year eucalypt plantation (Euc) and secondary vegetation (Sec) covers, cultivated for five months with Eucalyptus grandis, E. globulus, or left uncultivated. We measured plant growth, P and N concentrations, root and soil enzyme potential activities, and soil properties. Results showed that E. globulus plants in Euc soil had 23% higher shoot biomass production and 27% greater P uptake efficiency compared to plants in Sec soil. Both eucalypt species showed improved P and N use efficiencies in Euc soils, suggesting beneficial soil legacy effects. Furthermore, microbial traits related to arbuscular mycorrhizal (AM) fungi persisted partially in Sec soils, suggesting a beneficial AM fungal legacy for new eucalypt cultivation. The potential activity of enzymes associated with soil carbon and sulfur cycles was clearly influenced by plant presence, whereas enzymes related to the P cycle maintained their potential activity regardless of plant presence, indicating a lasting soil legacy for P mineralization enzymes. The results highlight the role of plant-soil feedback in nutrient utilization and suggest that soil management strategies should consider past vegetation to enhance sustainable eucalypt production.","PeriodicalId":9210,"journal":{"name":"Biology and Fertility of Soils","volume":"37 1","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142697059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Increased microbial carbon use efficiency and turnover rate drive soil organic carbon storage in old-aged forest on the southeastern Tibetan Plateau 微生物碳利用效率和周转率的提高推动了青藏高原东南部古老森林的土壤有机碳储存

IF 6.5 1区农林科学

Biology and Fertility of Soils Pub Date : 2024-10-31 DOI: 10.1007/s00374-024-01877-y

Shenglan Ma, Wanze Zhu, Wenwu Wang, Xia Li, Zheliang Sheng, Wolfgang Wanek

{"title":"Increased microbial carbon use efficiency and turnover rate drive soil organic carbon storage in old-aged forest on the southeastern Tibetan Plateau","authors":"Shenglan Ma, Wanze Zhu, Wenwu Wang, Xia Li, Zheliang Sheng, Wolfgang Wanek","doi":"10.1007/s00374-024-01877-y","DOIUrl":"https://doi.org/10.1007/s00374-024-01877-y","url":null,"abstract":"It is widely accepted that old-aged forest can accumulate soil organic carbon (SOC). How microbial physiological traits respond to forest age and whether they drive SOC sequestration in old-aged forest remain elusive. Therefore, we compared the microbial C use efficiency (CUE), biomass turnover rate (rB), microbial biomass C (MBC) and necromass C (MNC) across soil profiles from middle and old-aged forest and evaluated how these microbial traits are related to SOC storage. The results revealed that both forests could accumulate SOC and old-aged forest supported higher SOC storage than middle-aged forest from 2005 to 2020. Moreover, SOC was concentrated on the surface soils of middle-aged forest, whereas it was more distributed across the deeper soil profile in old-aged forest. Compared with middle-aged forest, the O, A and B soil layers of old-aged forest presented increases in microbial CUE (17.8%, 36.9% and 25.0%, respectively), rB (43.7%, 39.7% and 10.8%, respectively), MBC (114.8%, 81.1% and 122.9%, respectively), and MNC content (47.0%, 22.2% and 21.6%, respectively). Random forest analysis suggested that SOC accumulation is controlled mainly by microbial physiological traits rather than other factors including environmental variables. Specifically, microbial CUE and turnover rates increased in old-aged forest, resulting in higher MBC and MNC contents, which in turn led to SOC accumulation. Moreover, the effects of plant and soil properties on SOC storage are regulated mainly by microbial-physiological parameters and the size of microbial C pools. Our findings provide valuable insights into the microbial mechanisms underlying SOC storage in old-aged forest.","PeriodicalId":9210,"journal":{"name":"Biology and Fertility of Soils","volume":"11 1","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142556037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Inoculation of the Morchella importuna mycosphere with Pseudomonas chlororaphis alleviated a soil-borne disease caused by Paecilomyces penicillatus 给进口莫切莱菌菌丝体接种绿假单胞菌可减轻由青霉引起的土传疾病

IF 6.5 1区农林科学

Biology and Fertility of Soils Pub Date : 2024-10-29 DOI: 10.1007/s00374-024-01874-1

Yang Yu, Xia Kang, Tianhai Liu, Yong Wang, Jie Tang, Weihong Peng, Francis M. Martin, Hao Tan

{"title":"Inoculation of the Morchella importuna mycosphere with Pseudomonas chlororaphis alleviated a soil-borne disease caused by Paecilomyces penicillatus","authors":"Yang Yu, Xia Kang, Tianhai Liu, Yong Wang, Jie Tang, Weihong Peng, Francis M. Martin, Hao Tan","doi":"10.1007/s00374-024-01874-1","DOIUrl":"https://doi.org/10.1007/s00374-024-01874-1","url":null,"abstract":"Utilising the rhizosphere microbiota as a biological control agent is a promising strategy to protect plants against pathogens, although its efficacy in fungal hosts is uncertain. This study investigated the efficacy of Pseudomonas chlororaphis, a bacterial strain, in mitigating Paecilomyces penicillatus, a soil-borne pathogenic fungus responsible for white mould disease (WMD) in cultivated morels, such as Morchella importuna. Soils with chronic WMD, inoculated with or without P. chlororaphis, were utilised for M. importuna cultivation. In P. chlororaphis-inoculated morel soil beds, P. chlororaphis colonised both the mycelial surface and ascocarp matrix of M. importuna, increasing the abundance of Morchella in soil and the α-diversity of the soil fungal community. Additionally, P. chlororaphis inoculation decreased the abundance of detrimental P. penicillatus and mitigated the WMD incidence, which correspondingly increased the morel yield. Metagenomics revealed that increasing the pseudomonads in the M. importuna mycosphere altered the functionalities of the M. importuna soil microbiota, enhancing the abundances of genes encoding chitinase and alkaline protease and reducing the abundances of genes encoding glucanase and laccase. Under P. chlororaphis inoculation, pathways associated with pathogenic invasion were under-represented in the soil microbiota. These results enhance our understanding of bacterial–fungal interactions within soil ecosystems and demonstrate the potential for disease suppression through microbiota manipulation within the fungal mycosphere. These insights may lead to innovative approaches to combat fungal pathogens and enhance the health and productivity of valuable fungal crops such as morels.","PeriodicalId":9210,"journal":{"name":"Biology and Fertility of Soils","volume":"79 1","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142536597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Solid-state nuclear magnetic resonance at low-field as an approach for fertiliser dissolution monitoring 低场固态核磁共振作为肥料溶解监测的一种方法

IF 6.5 1区农林科学

Biology and Fertility of Soils Pub Date : 2024-10-25 DOI: 10.1007/s00374-024-01876-z

Etelvino Henrique Novotny, Eduardo Ribeiro de Azevedo, Jie Wang, Evan McCarney, Petrik Galvosas

{"title":"Solid-state nuclear magnetic resonance at low-field as an approach for fertiliser dissolution monitoring","authors":"Etelvino Henrique Novotny, Eduardo Ribeiro de Azevedo, Jie Wang, Evan McCarney, Petrik Galvosas","doi":"10.1007/s00374-024-01876-z","DOIUrl":"https://doi.org/10.1007/s00374-024-01876-z","url":null,"abstract":"The dissolution of fertilisers is the initial process that takes place in soils following fertiliser application and influences the fate and effectiveness of fertilisers. Currently, there are only a few methods for studying fertiliser dissolution in soil. These approaches typically do not accurately represent real soil-fertiliser systems and are susceptible to errors, since they are influenced by processes associated with the loss or retention of the trace ions of the fertiliser. Low field NMR or time-domain NMR (1H-TDNMR) is typically employed for studying 1H in fluids (or mobile 1H), however, special pulse sequences enable the selective detection of 1H in solids. Furthermore, it is possible to filter out undesired signals like 1H from minerals and from soil organic matter. This allows for the detection and monitoring of 1H only from protonated fertilisers (e.g., ammonia, (di)-hydrogen phosphates, etc.). The aim of this study is to present an efficient procedure which monitors the dissolution of fertilisers in soils using 1H-TDNMR. For this, six contrasting New Zealand soils and four protonated fertilisers - NH4Cl, NH4NO3, NaH2PO4.H2O, and (NH4)2HPO4 - were utilised. The proposed method efficiently, accurately, and precisely, monitored the dissolution of the studied fertilisers in all the tested soils under different rain regimes, from violent rain (60 mm h− 1) to light rain (2 mm h− 1) with a time interval (temporal resolution) as short as 5 s.","PeriodicalId":9210,"journal":{"name":"Biology and Fertility of Soils","volume":"236 1","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142489471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pre-sowing recurrent inoculation with Pseudomonas fluorescens promotes maize growth 播种前反复接种荧光假单胞菌可促进玉米生长

IF 6.5 1区农林科学

Biology and Fertility of Soils Pub Date : 2024-10-23 DOI: 10.1007/s00374-024-01873-2

Marine Papin, Amélie Polrot, Marie-Christine Breuil, Sonia Czarnes, Assia Dreux-Zigha, Xavier Le Roux, Ahmed Taibi, Aymé Spor, Laurent Philippot

{"title":"Pre-sowing recurrent inoculation with Pseudomonas fluorescens promotes maize growth","authors":"Marine Papin, Amélie Polrot, Marie-Christine Breuil, Sonia Czarnes, Assia Dreux-Zigha, Xavier Le Roux, Ahmed Taibi, Aymé Spor, Laurent Philippot","doi":"10.1007/s00374-024-01873-2","DOIUrl":"https://doi.org/10.1007/s00374-024-01873-2","url":null,"abstract":"Despite the rapid development of microbial inoculants use, their effectiveness still lacks robustness, partly due to our limited understanding of the factors influencing their establishment in soil. Recurrent inoculation can temporarily increase their abundance, but the effect of this inoculation strategy on plant growth and on the resident microbial community is still poorly studied. Here, we investigated maize growth and soil bacterial community responses under recurrent inoculation of the plant-beneficial bacterium Pseudomonas fluorescens B177. We further assessed how the effect of recurrent inoculation was modulated by the inoculant dose, the application timing and the soil type. Recurrent inoculation at high dose transiently increased the abundance of P. fluorescens B177 and resulted in larger shifts in the resident bacterial community compared to a single inoculation event. Moreover, recurrent inoculation prior to sowing had the strongest effect on maize growth, with increased shoot dry weight by 47.4%, likely due to an indirect effect of the inoculant through early changes in the resident community. Altogether these findings highlight the significance of recurrent pre-sowing inoculations as an alternative strategy for promoting plant growth.","PeriodicalId":9210,"journal":{"name":"Biology and Fertility of Soils","volume":"14 1","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142487593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interactive effects of plant litter chemistry and organic/inorganic forms of nitrogen addition on Moso bamboo (Phyllostachys edulis) soil respiration 植物废弃物化学性质和有机/无机氮添加形式对毛竹（Phyllostachys edulis）土壤呼吸作用的交互影响

IF 6.5 1区农林科学

Biology and Fertility of Soils Pub Date : 2024-10-22 DOI: 10.1007/s00374-024-01875-0

Shoujia Zhuo, Yunying Fang, Youchao Chen, Tony Vancov, Huaqiang Du, Yongfu Li, Bing Yu, Scott X. Chang, Yanjiang Cai

{"title":"Interactive effects of plant litter chemistry and organic/inorganic forms of nitrogen addition on Moso bamboo (Phyllostachys edulis) soil respiration","authors":"Shoujia Zhuo, Yunying Fang, Youchao Chen, Tony Vancov, Huaqiang Du, Yongfu Li, Bing Yu, Scott X. Chang, Yanjiang Cai","doi":"10.1007/s00374-024-01875-0","DOIUrl":"https://doi.org/10.1007/s00374-024-01875-0","url":null,"abstract":"The impact of plant litter on soil carbon (C) cycling is influenced by external nitrogen (N) deposition and plant litter chemistry. While previous research has mainly focused on inorganic N deposition and its effect on plant litter decomposition and soil C cycling, the influence of organic N remains poorly understood. In this study, we conducted a 180-day incubation experiment to investigate how different N forms (NH4NO3, Urea 50% + Glycine 50%) and litter chemistry (varying lignin/N ratios) affect CO2 emissions from an acidic Moso bamboo (Phyllostachys edulis) forest soil. Our findings indicate that litter addition increased soil CO2 emissions and the proportion of CO2-C to Total C (considering added litter-C as a part of total C). Specifically, Moso bamboo leaf litter with a lower lignin/N ratio led to higher soil CO2 emissions and CO2-C/Total C ratios. The combined addition of litter and N exhibited an antagonistic effect on soil CO2 emissions, with inorganic N having a more pronounced effect compared to organic N. This antagonistic effect was attributed to the N addition-induced soil acidification, thereby inhibiting microbial activities and reducing soil respiration promoted by litter input. This effect was confirmed by random forest analysis and partial least squares path modeling, which further identified soil dissolved organic C and pH as critical factors positively influencing soil CO2 emissions. Overall, our study suggests that atmospheric N deposition can mitigate litter-induced soil CO2 emissions, particularly under inorganic N forms and when leaf litters with high lignin/N ratios are introduced.","PeriodicalId":9210,"journal":{"name":"Biology and Fertility of Soils","volume":"14 1","pages":""},"PeriodicalIF":6.5,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142486884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0