Pedobiologia最新文献_第6页

Organic matter content rather than farming practices modulates microbial activities in vineyard soils 调节葡萄园土壤微生物活动的不是耕作方式，而是有机质含量

IF 2 3区农林科学 Q3 ECOLOGY

Pedobiologia

Pub Date : 2025-02-01 DOI: 10.1016/j.pedobi.2024.151017

Pierre Blondel , Nicolas Fanin , Benjamin Joubard , Sylvie Milin , Adrien Rusch , Brice Giffard

Soil functioning is a growing concern in intensively-managed agricultural landscapes such as vineyards. Mechanical disturbance of the soil and pesticide use have deleterious impact on microbial activity, which is a key parameter for organic matter decomposition and nutrient cycling. This study aims to assess the response of soil microbial activities under different farming systems (organic and conventional systems) and inter-rows management (grassy or tilled inter-rows). We selected 18 fields in the southwest of France, supporting tilled and grassy inter-rows (alternating treatment) - 9 fields were managed organically and 9 were managed conventionally. We assessed extracellular enzymatic activities relative to C, N, P acquisition and Microresp™, which allows to measure catabolic capacities of soil microbial communities. Our results showed that organic systems had a higher soil organic matter (SOM) content than conventional ones. At the inter-row scale, grassy inter-rows of organic vineyards differed from tilled inter-rows in catabolic capacities of microbial communities; with overall a higher complexity of C-substrates respired by microbial communities. Furthermore, N- and P-related enzymes were positively correlated to SOM and soil pH across sites and managements, suggesting that increasing SOM may positively impact nutrient recycling and notably NO₃^-. Altogether, our results pointed out the importance of soil organic matter content on soil microbial functioning in vineyards as well as the possible benefit of organic matter inputs on nutrient recycling and nitrogen directly available in the vineyard.

在葡萄园等集约化管理的农业景观中，土壤功能日益受到关注。土壤的机械扰动和农药的使用对微生物活性产生不利影响，而微生物活性是有机质分解和养分循环的关键参数。本研究旨在评估不同耕作制度（有机耕作和常规耕作）和行间管理（草作或耕作行间）下土壤微生物活动的响应。我们在法国西南部选择了18块田，支持耕作和草行间（交替处理）- 9块田采用有机管理，9块采用常规管理。我们评估了与C、N、P获取和Microresp™相关的细胞外酶活性，Microresp™可以测量土壤微生物群落的分解代谢能力。结果表明，有机体系土壤有机质含量高于常规体系。行间尺度上，植草的有机葡萄园行间微生物群落的分解代谢能力与耕地的不同；微生物群落呼吸的c -底物总体上具有更高的复杂性。此外，N-和p -相关酶与土壤有机质和pH值呈正相关，表明土壤有机质的增加可能对养分循环产生积极影响，尤其是NO3-。总之，我们的研究结果指出了土壤有机质含量对葡萄园土壤微生物功能的重要性，以及有机质投入对葡萄园养分循环和直接有效氮的可能益处。

{"title":"Organic matter content rather than farming practices modulates microbial activities in vineyard soils","authors":"Pierre Blondel , Nicolas Fanin , Benjamin Joubard , Sylvie Milin , Adrien Rusch , Brice Giffard","doi":"10.1016/j.pedobi.2024.151017","DOIUrl":"10.1016/j.pedobi.2024.151017","url":null,"abstract":"<div><div>Soil functioning is a growing concern in intensively-managed agricultural landscapes such as vineyards. Mechanical disturbance of the soil and pesticide use have deleterious impact on microbial activity, which is a key parameter for organic matter decomposition and nutrient cycling. This study aims to assess the response of soil microbial activities under different farming systems (organic and conventional systems) and inter-rows management (grassy or tilled inter-rows). We selected 18 fields in the southwest of France, supporting tilled and grassy inter-rows (alternating treatment) - 9 fields were managed organically and 9 were managed conventionally. We assessed extracellular enzymatic activities relative to C, N, P acquisition and Microresp™, which allows to measure catabolic capacities of soil microbial communities. Our results showed that organic systems had a higher soil organic matter (SOM) content than conventional ones. At the inter-row scale, grassy inter-rows of organic vineyards differed from tilled inter-rows in catabolic capacities of microbial communities; with overall a higher complexity of C-substrates respired by microbial communities. Furthermore, N- and P-related enzymes were positively correlated to SOM and soil pH across sites and managements, suggesting that increasing SOM may positively impact nutrient recycling and notably NO<sub>3</sub><sup>-</sup>. Altogether, our results pointed out the importance of soil organic matter content on soil microbial functioning in vineyards as well as the possible benefit of organic matter inputs on nutrient recycling and nitrogen directly available in the vineyard.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"108 ","pages":"Article 151017"},"PeriodicalIF":2.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143135240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Responses of N2O production and associated functional genes to increasing temperature and moisture in surface and subsurface soils of a temperate forest 温带森林表层和地下土壤N2O生成及相关功能基因对增温增湿的响应

IF 2 3区农林科学 Q3 ECOLOGY

Pedobiologia

Pub Date : 2025-02-01 DOI: 10.1016/j.pedobi.2025.151020

Lifei Sun, Yanci Qiao, Liquan Song, Yujiao Peng, Baoqing Hu

The effects of increasing temperature and moisture on soil nitrous oxide (N₂O) emissions across different soil horizons remain poorly understood. Here, we investigated how increased temperature (15 °C and 25 °C) and moisture (30 %, 45 %, and 60 % water-filled pore space (WFPS)) influence N₂O emissions from surface (0–5 cm) and subsurface (5–20 cm) soils in a temperate forest. We found that increasing temperature and moisture promoted N₂O production from subsurface soil due to the stimulation of both nitrification- and denitrification-derived N₂O production. However, in surface soil, the effect of increasing temperature on N₂O production is soil moisture dependent, increasing it at 30 % WFPS but decreasing it at 60 % WFPS. This reduction was caused by decreased denitrification-derived N₂O production. Nitrification was identified as the dominant source of N₂O production in both soils, rather than denitrification. Denitrification-derived N₂O production was positively related to nirK gene abundance but not nirS gene abundance, suggesting that nirK-type denitrifiers may be more active than nirS-type denitrifiers. Furthermore, the proportion of nitrified N emitted as N₂O decreased with rising temperature in both soils. Our results underscore the importance of incorporating variable proportions of nitrified N emitted as N₂O in Earth system model to more accurately predict soil N₂O emission in the context of global climate changes.

温度和湿度的增加对不同土壤层的土壤氧化亚氮（N2O）排放的影响仍然知之甚少。在这里，我们研究了温度（15°C和25°C）和湿度（30 %，45 %和60 %的水填充孔隙空间（WFPS））的增加如何影响温带森林表层（0-5 cm）和地下（5-20 cm）土壤的N2O排放。我们发现，温度和湿度的增加促进了地下土壤N2O的产生，这是由于硝化和反硝化产生的N2O的刺激。然而，在表层土壤中，温度升高对N2O产量的影响与土壤水分有关，在30% % WFPS时增加N2O产量，而在60% % WFPS时减少N2O产量。这种减少是由于反硝化产生的N2O产量减少造成的。在两种土壤中，硝化作用被确定为N2O生产的主要来源，而非反硝化作用。反硝化产生的N2O与nirK基因丰度呈正相关，而与nirS基因丰度无关，这表明nirK型反硝化菌可能比nirS型反硝化菌更有活性。两种土壤中氮化氮以N2O形式排放的比例随温度升高而降低。我们的研究结果强调了在全球气候变化背景下，将不同比例的硝化氮作为N2O排放纳入地球系统模型以更准确地预测土壤N2O排放的重要性。

{"title":"Responses of N2O production and associated functional genes to increasing temperature and moisture in surface and subsurface soils of a temperate forest","authors":"Lifei Sun, Yanci Qiao, Liquan Song, Yujiao Peng, Baoqing Hu","doi":"10.1016/j.pedobi.2025.151020","DOIUrl":"10.1016/j.pedobi.2025.151020","url":null,"abstract":"<div><div>The effects of increasing temperature and moisture on soil nitrous oxide (N<sub>2</sub>O) emissions across different soil horizons remain poorly understood. Here, we investigated how increased temperature (15 °C and 25 °C) and moisture (30 %, 45 %, and 60 % water-filled pore space (WFPS)) influence N<sub>2</sub>O emissions from surface (0–5 cm) and subsurface (5–20 cm) soils in a temperate forest. We found that increasing temperature and moisture promoted N<sub>2</sub>O production from subsurface soil due to the stimulation of both nitrification- and denitrification-derived N<sub>2</sub>O production. However, in surface soil, the effect of increasing temperature on N<sub>2</sub>O production is soil moisture dependent, increasing it at 30 % WFPS but decreasing it at 60 % WFPS. This reduction was caused by decreased denitrification-derived N<sub>2</sub>O production. Nitrification was identified as the dominant source of N<sub>2</sub>O production in both soils, rather than denitrification. Denitrification-derived N<sub>2</sub>O production was positively related to <em>nirK</em> gene abundance but not <em>nirS</em> gene abundance, suggesting that <em>nirK</em>-type denitrifiers may be more active than <em>nirS</em>-type denitrifiers. Furthermore, the proportion of nitrified N emitted as N<sub>2</sub>O decreased with rising temperature in both soils. Our results underscore the importance of incorporating variable proportions of nitrified N emitted as N<sub>2</sub>O in Earth system model to more accurately predict soil N<sub>2</sub>O emission in the context of global climate changes.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"108 ","pages":"Article 151020"},"PeriodicalIF":2.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143135293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

A field mesocosm method for manipulation of soil mesofauna communities and repeated measurement of their ecological functions over months to years 一种用于土壤中系动物群落操纵和数月至数年重复测量其生态功能的野外中系方法

IF 2 3区农林科学 Q3 ECOLOGY

Pedobiologia

Pub Date : 2025-02-01 DOI: 10.1016/j.pedobi.2024.151019

Kara S. Gibson , Nancy C. Johnson , Deborah A. Neher , Anita J. Antoninka

In situ manipulation of mesofauna communities is necessary to understand their functional importance in complex natural systems. Field mesocosms that control the recolonization of defaunated soil and litter by mesofauna are well suited to this purpose, but are infrequently used and can produce undesirable side effects on microclimate. Here, we present an inexpensive and easy to construct field mesocosm design that is intended to address some limitations of existing mesocosm methods. Our mesocosms were engineered to manipulate mesofauna communities over one or two years via mesh treatments (21 µm, 41 µm, and 1000 µm mesh opening sizes) while minimizing mesh treatment side effects and allowing repeated access to mesocosm interiors for measurement of microclimate differences and mesofauna functions through time. They are also compatible with LI-COR survey chambers, enabling measurement of gas flux from mesocosms. We tested these mesocosms in untreated and thinned/burned ponderosa pine (Pinus ponderosa) forests in Valles Caldera National Preserve, New Mexico, USA to compare their performance in differing abiotic and biotic contexts. The mesocosm treatments successfully manipulated microarthropods > 150 µm for fifteen months but were only partially effective at manipulating microarthropods < 150 µm. This mesocosm technique advances our ability to disentangle the functional contributions of mesofauna in complex natural systems because it enables manipulation experiments with repeated sampling in time and space.

为了了解它们在复杂自然系统中的功能重要性，有必要对中系动物群落进行原位操作。控制退化土壤和凋落物由中系动物再定殖的田间中生态系统非常适合这一目的，但很少使用，并且可能对小气候产生不良的副作用。在这里，我们提出了一种廉价且易于构建的场介域设计，旨在解决现有介域方法的一些局限性。我们的中生态系统经过设计，可以通过网格处理（21 µm， 41 µm和1000 µm的网格开口尺寸）在一到两年内操纵中生态系统群落，同时最大限度地减少网格处理的副作用，并允许重复访问中生态系统内部，以测量小气候差异和中生态系统的功能。它们还与LI-COR测量室兼容，可以测量来自中观宇宙的气体通量。我们在美国新墨西哥州的Valles Caldera国家自然保护区对这些中生态系统进行了测试，以比较它们在不同的非生物和生物环境下的表现。中膜治疗成功地操纵了微型节肢动物>； 150 µm 15个月，但对微型节肢动物<； 150 µm仅部分有效。这种中生态系统技术提高了我们在复杂自然系统中解开中生态系统功能贡献的能力，因为它允许在时间和空间上重复采样的操作实验。

{"title":"A field mesocosm method for manipulation of soil mesofauna communities and repeated measurement of their ecological functions over months to years","authors":"Kara S. Gibson , Nancy C. Johnson , Deborah A. Neher , Anita J. Antoninka","doi":"10.1016/j.pedobi.2024.151019","DOIUrl":"10.1016/j.pedobi.2024.151019","url":null,"abstract":"<div><div><em>In situ</em> manipulation of mesofauna communities is necessary to understand their functional importance in complex natural systems. Field mesocosms that control the recolonization of defaunated soil and litter by mesofauna are well suited to this purpose, but are infrequently used and can produce undesirable side effects on microclimate. Here, we present an inexpensive and easy to construct field mesocosm design that is intended to address some limitations of existing mesocosm methods. Our mesocosms were engineered to manipulate mesofauna communities over one or two years via mesh treatments (21 µm, 41 µm, and 1000 µm mesh opening sizes) while minimizing mesh treatment side effects and allowing repeated access to mesocosm interiors for measurement of microclimate differences and mesofauna functions through time. They are also compatible with LI-COR survey chambers, enabling measurement of gas flux from mesocosms. We tested these mesocosms in untreated and thinned/burned ponderosa pine (<em>Pinus ponderosa</em>) forests in Valles Caldera National Preserve, New Mexico, USA to compare their performance in differing abiotic and biotic contexts. The mesocosm treatments successfully manipulated microarthropods > 150 µm for fifteen months but were only partially effective at manipulating microarthropods < 150 µm. This mesocosm technique advances our ability to disentangle the functional contributions of mesofauna in complex natural systems because it enables manipulation experiments with repeated sampling in time and space.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"108 ","pages":"Article 151019"},"PeriodicalIF":2.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143135292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Metabarcoding of a mock community of soil invertebrates: DNA extraction, false positives, and data filtration 模拟土壤无脊椎动物群落的元条形码：DNA提取，假阳性和数据过滤

IF 2 3区农林科学 Q3 ECOLOGY

Pedobiologia

Pub Date : 2025-01-22 DOI: 10.1016/j.pedobi.2025.151022

Ivan V. Sotnikov , Maxim V. Vecherskii , Vladimir S. Cheptsov , Alexei V. Tiunov

Metabarcoding is a powerful tool widely used to analyze soil communities but methodological difficulties can introduce biases, resulting in inaccurate estimation of species diversity. We evaluated five DNA extraction methods, two PCR programs, and three post-bioinformatic processing techniques (multiple databases, filtering based on the level of similarity and on the number of reads obtained) using a mock community of soil invertebrates containing 24 species, 23 genera, and 15 families of arthropods and annelids. The choice of DNA extraction kit significantly influenced the accuracy of the metabarcoding results. Kits developed for the isolation of DNA from soil and alkaline lysis without purification showed worse results compared to those designed for isolating DNA from tissues. In the best variant of sample processing, metabarcoding yielded correct identification of 67 % species and 94 % families. Post-bioinformatic filtering dramatically increased the proportion of true positives achieving 100 % at the family, over 73 % at the genus, and more than 60 % at the species level. Thus, an acceptable level of accuracy may be achieved in field surveys with relatively little time and effort.

元条形码是一种被广泛用于土壤群落分析的强大工具，但方法上的困难会导致偏差，导致物种多样性估计不准确。我们评估了五种DNA提取方法、两种PCR程序和三种后生物信息学处理技术（多个数据库，基于相似性水平和获得的读取数进行过滤），使用了一个模拟的土壤无脊椎动物群落，包含24种、23属、15科的节肢动物和环节动物。DNA提取试剂盒的选择显著影响元条形码结果的准确性。与从组织中分离DNA的试剂盒相比，用于从土壤中分离DNA和未经纯化的碱性裂解的试剂盒显示出更差的结果。在样品处理的最佳变体中，元条形码获得了67 %种和94 %科的正确鉴定。后生物信息学过滤显著提高了真阳性比例，在科水平上达到100 %，在属水平上超过73 %，在种水平上超过60 %。因此，在实地调查中可以用相对较少的时间和精力达到可接受的精度水平。

{"title":"Metabarcoding of a mock community of soil invertebrates: DNA extraction, false positives, and data filtration","authors":"Ivan V. Sotnikov , Maxim V. Vecherskii , Vladimir S. Cheptsov , Alexei V. Tiunov","doi":"10.1016/j.pedobi.2025.151022","DOIUrl":"10.1016/j.pedobi.2025.151022","url":null,"abstract":"<div><div>Metabarcoding is a powerful tool widely used to analyze soil communities but methodological difficulties can introduce biases, resulting in inaccurate estimation of species diversity. We evaluated five DNA extraction methods, two PCR programs, and three post-bioinformatic processing techniques (multiple databases, filtering based on the level of similarity and on the number of reads obtained) using a mock community of soil invertebrates containing 24 species, 23 genera, and 15 families of arthropods and annelids. The choice of DNA extraction kit significantly influenced the accuracy of the metabarcoding results. Kits developed for the isolation of DNA from soil and alkaline lysis without purification showed worse results compared to those designed for isolating DNA from tissues. In the best variant of sample processing, metabarcoding yielded correct identification of 67 % species and 94 % families. Post-bioinformatic filtering dramatically increased the proportion of true positives achieving 100 % at the family, over 73 % at the genus, and more than 60 % at the species level. Thus, an acceptable level of accuracy may be achieved in field surveys with relatively little time and effort.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"109 ","pages":"Article 151022"},"PeriodicalIF":2.0,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143130098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Asian knotweed’s impacts on soil chemistry and enzyme activities are higher in soils with low-nutrient status 亚洲结缕草对土壤化学和酶活性的影响在低养分土壤中更大

IF 2 3区农林科学 Q3 ECOLOGY

Pedobiologia

Pub Date : 2024-11-01 DOI: 10.1016/j.pedobi.2024.151002

Fanny Dommanget , Estelle Forey , Matthieu Chauvat , Amandine Erktan , Camille Noûs , Léa Daniès , Coralie Chesseron , Nicolas Fanin

Invasive alien plants such as Reynoutria spp. can drastically affect the composition of plant communities. Yet, whether and how these species also affect soil physicochemical properties and microbial functioning is still an unresolved question in the literature. Using a space-for-time substitution approach comparing invaded to uninvaded adjacent plots, we estimated the impacts of Reynoutria on soil biochemistry across nine contrasted sites in France by measuring soil carbon content, nutrient availability and enzyme activities. Soil under Reynoutria displayed higher carbon, nitrogen and phosphorus contents but no differences were detected regarding enzyme activities between invaded and uninvaded sites. Moreover, the magnitude of Reynoutria’s effects differed depending on local conditions, with greater effects when total carbon and phosphorus-related enzymes were relatively low. These data highlight that changes in soil nutrient availability might be primarily due to direct effects of Reynoutria on soil properties and microbial functioning. Higher impacts were observed in soils with low-nutrient status, suggesting a ‘niche construction ability’ of Reynoutria. Our results underscore the necessity of considering the context-dependency of Reynoutria on soil biochemistry and highlight that the impact of alien species belowground functioning depends on initial soil conditions.

外来入侵植物（如雷诺苔属植物）会严重影响植物群落的组成。然而，这些物种是否以及如何影响土壤理化性质和微生物功能，在文献中仍是一个悬而未决的问题。我们采用空间-时间替代法，比较了被入侵和未被入侵的相邻地块，通过测量土壤碳含量、养分可用性和酶活性，估算了雷诺氏菌对法国九个不同地点的土壤生物化学的影响。雷诺苔属下的土壤碳、氮和磷含量较高，但在酶活性方面，受侵染地块与未受侵染地块没有发现差异。此外，雷诺特里亚的影响程度因当地条件而异，在总碳和磷相关酶含量相对较低时，影响程度更大。这些数据突出表明，土壤养分供应的变化可能主要是由于雷诺特里亚对土壤特性和微生物功能的直接影响。在低养分土壤中观察到的影响更大，这表明雷诺氏藻具有 "生态位构建能力"。我们的研究结果突出表明，有必要考虑雷诺氏藻对土壤生物化学的环境依赖性，并强调外来物种对地下功能的影响取决于最初的土壤条件。

{"title":"Asian knotweed’s impacts on soil chemistry and enzyme activities are higher in soils with low-nutrient status","authors":"Fanny Dommanget , Estelle Forey , Matthieu Chauvat , Amandine Erktan , Camille Noûs , Léa Daniès , Coralie Chesseron , Nicolas Fanin","doi":"10.1016/j.pedobi.2024.151002","DOIUrl":"10.1016/j.pedobi.2024.151002","url":null,"abstract":"<div><div>Invasive alien plants such as <em>Reynoutria</em> spp. can drastically affect the composition of plant communities. Yet, whether and how these species also affect soil physicochemical properties and microbial functioning is still an unresolved question in the literature. Using a space-for-time substitution approach comparing invaded to uninvaded adjacent plots, we estimated the impacts of <em>Reynoutria</em> on soil biochemistry across nine contrasted sites in France by measuring soil carbon content, nutrient availability and enzyme activities. Soil under <em>Reynoutria</em> displayed higher carbon, nitrogen and phosphorus contents but no differences were detected regarding enzyme activities between invaded and uninvaded sites. Moreover, the magnitude of <em>Reynoutria</em>’s effects differed depending on local conditions, with greater effects when total carbon and phosphorus-related enzymes were relatively low. These data highlight that changes in soil nutrient availability might be primarily due to direct effects of <em>Reynoutria</em> on soil properties and microbial functioning. Higher impacts were observed in soils with low-nutrient status, suggesting a ‘niche construction ability’ of <em>Reynoutria</em>. Our results underscore the necessity of considering the context-dependency of <em>Reynoutria</em> on soil biochemistry and highlight that the impact of alien species belowground functioning depends on initial soil conditions.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"107 ","pages":"Article 151002"},"PeriodicalIF":2.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142555044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Communicating about soil biodiversity: Insights from science editorials and future recommendations 宣传土壤生物多样性：科学社论的启示和未来建议

IF 2 3区农林科学 Q3 ECOLOGY

Pedobiologia

Pub Date : 2024-11-01 DOI: 10.1016/j.pedobi.2024.151003

Yamina Pressler , Bailey M. McClymonds , Meena M. Balgopal

Given the urgency of the global soil degradation crisis, soil scientists must communicate the importance of soil as being part of nature and the critical need for conserving soil biodiversity. Drawing on a thematic analysis of editorials related to soil conservation and management, we analyzed common themes, key messages, and frames that authors used to advocate for change. Soil biodiversity was referred to in 8 of the 11 editorials, but it was less emphasized and discussed in less detail than messages centered around food production, water resources, and climate change. Editorials structured arguments around economic development, scientific and technical uncertainty, and morality and ethics. We believe future editorials should apply other persuasive frames including social progress, public accountability, and working-towards-compromise when advocating for soil biodiversity conservation. Soil ecologists can improve communications about soil biodiversity by (1) identifying an audience and selecting relevant key messages, (2) strategically applying a persuasive frame, and (3) amplifying diverse voices with a consistent message. We provide a guide for developing essays that encourages soil ecologists to shape discourse, advance policy priorities, and enable non-soil ecologists to communicate about soil biodiversity conservation.

鉴于全球土壤退化危机的紧迫性，土壤科学家必须宣传土壤作为自然一部分的重要性以及保护土壤生物多样性的迫切需要。通过对与土壤保护和管理相关的社论进行主题分析，我们分析了作者用来倡导变革的共同主题、关键信息和框架。在 11 篇社论中，有 8 篇提到了土壤生物多样性，但与围绕粮食生产、水资源和气候变化的信息相比，对土壤生物多样性的强调和讨论都较少。社论围绕经济发展、科学和技术的不确定性以及道德和伦理展开论述。我们认为，在倡导保护土壤生物多样性时，未来的社论应采用其他有说服力的框架，包括社会进步、公共责任和努力妥协。土壤生态学家可以通过以下方法改善有关土壤生物多样性的传播：（1）确定受众并选择相关的关键信息；（2）战略性地应用有说服力的框架；（3）用一致的信息放大不同的声音。我们为撰写论文提供了指南，鼓励土壤生态学家参与讨论、推进政策优先事项，并使非土壤生态学家能够就土壤生物多样性保护进行交流。

{"title":"Communicating about soil biodiversity: Insights from science editorials and future recommendations","authors":"Yamina Pressler , Bailey M. McClymonds , Meena M. Balgopal","doi":"10.1016/j.pedobi.2024.151003","DOIUrl":"10.1016/j.pedobi.2024.151003","url":null,"abstract":"<div><div>Given the urgency of the global soil degradation crisis, soil scientists must communicate the importance of soil as being part of nature and the critical need for conserving soil biodiversity. Drawing on a thematic analysis of editorials related to soil conservation and management, we analyzed common themes, key messages, and frames that authors used to advocate for change. Soil biodiversity was referred to in 8 of the 11 editorials, but it was less emphasized and discussed in less detail than messages centered around food production, water resources, and climate change. Editorials structured arguments around economic development, scientific and technical uncertainty, and morality and ethics. We believe future editorials should apply other persuasive frames including social progress, public accountability, and working-towards-compromise when advocating for soil biodiversity conservation. Soil ecologists can improve communications about soil biodiversity by (1) identifying an audience and selecting relevant key messages, (2) strategically applying a persuasive frame, and (3) amplifying diverse voices with a consistent message. We provide a guide for developing essays that encourages soil ecologists to shape discourse, advance policy priorities, and enable non-soil ecologists to communicate about soil biodiversity conservation.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"107 ","pages":"Article 151003"},"PeriodicalIF":2.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142555045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Variations in soil fungal communities: Comparative insights from coniferous and mixed broadleaf-conifer forests 土壤真菌群落的变化：针叶林与阔叶-针叶混交林的比较研究

IF 2 3区农林科学 Q3 ECOLOGY

Pedobiologia

Pub Date : 2024-11-01 DOI: 10.1016/j.pedobi.2024.151007

Dexing Chen , Qiongyi Zhang , Siyu Chen , Yuqing Lin , Yuanming Zhu , Weiwei Sun , Mingjiu Chen , Shuangquan Zou , Xin Qian

Soil fungal communities are intricately linked to their vegetative hosts, playing a crucial role in plant development, biogeochemical cycling, and the stability of forest ecosystems. Distinct forest types harbor unique soil fungal assemblages, each finely tuned to the prevailing environmental conditions and plant species, thereby fulfilling diverse ecological functions. This study used high-throughput sequencing methodologies to conduct an exhaustive assessment of the community structure, ecological process, and interaction networks of soil fungi within coniferous and mixed broadleaf-conifer forests. Our findings demonstrated significant differences in community structure across different functional groups (pathotroph, saprotroph, and symbiotroph) between mixed broadleaf-conifer forests and coniferous forests. The community structure of forest soil fungi was profoundly shaped by soil physicochemical attributes, including pH, organic matter, total phosphorus, and available nitrogen. The neutral community model indicated that stochastic processes were dominant in the structuring of fungal communities in both forest types; however, the proportion of deterministic processes was substantially greater in coniferous forests compared to mixed broadleaf-conifer forests. Furthermore, the soil fungal network structure in mixed broadleaf-conifer forests exhibited greater complexity compared to coniferous forests, with significant associations identified between specific soil physicochemical properties and the topological characteristics of fungal interaction networks in both forest types. These findings underscore the critical impact of forest type on the dynamics of soil fungal communities and their ecological functions, offering strategic insights for forest management practices that enhance ecosystem resilience and biodiversity conservation.

土壤真菌群落与其植被宿主有着错综复杂的联系，在植物生长发育、生物地球化学循环和森林生态系统的稳定性方面发挥着至关重要的作用。不同的森林类型蕴藏着独特的土壤真菌群落，每种真菌群落都与当时的环境条件和植物种类密切相关，从而发挥着不同的生态功能。本研究利用高通量测序方法对针叶林和阔叶-针叶混交林中土壤真菌的群落结构、生态过程和相互作用网络进行了详尽的评估。我们的研究结果表明，针阔叶混交林和针叶林中不同功能群（病原菌、嗜渍菌和共生菌）的群落结构存在显著差异。森林土壤真菌群落结构深受土壤理化属性（包括 pH 值、有机质、总磷和可利用氮）的影响。中性群落模型表明，随机过程在两种森林类型的真菌群落结构中都占主导地位；然而，与阔叶-针叶混交林相比，针叶林中确定性过程所占的比例要大得多。此外，与针叶林相比，阔叶-针叶混交林的土壤真菌网络结构表现出更大的复杂性，在两种森林类型中，特定的土壤理化性质与真菌相互作用网络的拓扑特征之间都存在显著的关联。这些发现强调了森林类型对土壤真菌群落动态及其生态功能的重要影响，为提高生态系统恢复能力和生物多样性保护的森林管理实践提供了战略性启示。

{"title":"Variations in soil fungal communities: Comparative insights from coniferous and mixed broadleaf-conifer forests","authors":"Dexing Chen , Qiongyi Zhang , Siyu Chen , Yuqing Lin , Yuanming Zhu , Weiwei Sun , Mingjiu Chen , Shuangquan Zou , Xin Qian","doi":"10.1016/j.pedobi.2024.151007","DOIUrl":"10.1016/j.pedobi.2024.151007","url":null,"abstract":"<div><div>Soil fungal communities are intricately linked to their vegetative hosts, playing a crucial role in plant development, biogeochemical cycling, and the stability of forest ecosystems. Distinct forest types harbor unique soil fungal assemblages, each finely tuned to the prevailing environmental conditions and plant species, thereby fulfilling diverse ecological functions. This study used high-throughput sequencing methodologies to conduct an exhaustive assessment of the community structure, ecological process, and interaction networks of soil fungi within coniferous and mixed broadleaf-conifer forests. Our findings demonstrated significant differences in community structure across different functional groups (pathotroph, saprotroph, and symbiotroph) between mixed broadleaf-conifer forests and coniferous forests. The community structure of forest soil fungi was profoundly shaped by soil physicochemical attributes, including pH, organic matter, total phosphorus, and available nitrogen. The neutral community model indicated that stochastic processes were dominant in the structuring of fungal communities in both forest types; however, the proportion of deterministic processes was substantially greater in coniferous forests compared to mixed broadleaf-conifer forests. Furthermore, the soil fungal network structure in mixed broadleaf-conifer forests exhibited greater complexity compared to coniferous forests, with significant associations identified between specific soil physicochemical properties and the topological characteristics of fungal interaction networks in both forest types. These findings underscore the critical impact of forest type on the dynamics of soil fungal communities and their ecological functions, offering strategic insights for forest management practices that enhance ecosystem resilience and biodiversity conservation.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"107 ","pages":"Article 151007"},"PeriodicalIF":2.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Occurrence of plant suppression gradients through common mycorrhizal networks across ecological groups during successional dynamics 在演替动态过程中，各生态群落通过共同的菌根网络出现植物抑制梯度

IF 2 3区农林科学 Q3 ECOLOGY

Pedobiologia

Pub Date : 2024-11-01 DOI: 10.1016/j.pedobi.2024.151006

Breynner G.P. Bertagnoli , José Antonio Pimenta , Arnaldo Colozzi Filho , Waldemar Zangaro

Plants can utilize the common mycorrhizal network (CMN) as a pathway for competition, enabling the suppression of other plants through an asymmetric distribution of resources. This study aimed to assess the competitive dynamics of CMN originating from adult Brachiaria brizantha plants, juvenile Heliocarpus popayanensis, and juvenile Cariniana estrellensis on the growth of seedlings of these three species. Plants and seedlings were cultivated in substrates containing native arbuscular mycorrhizal fungi (AMF). Analysis of variance was conducted, and means were compared using the Tukey test. The results indicated that seedling growth of all three species was significantly suppressed by the CMN originating from adult B. brizantha, moderately suppressed by the CMN from juvenile H. popayanensis, and weakly suppressed by the CMN from juvenile C. estrellensis. While the seedlings of B. brizantha initially experienced suppression, they eventually developed and suppressed the juvenile plants of both H. popayanensis and C. estrellensis, leading to a reversal of the nutrient flux. This shift corroborated the mechanism of reciprocal reward. The study observed the formation of a gradient in seedling suppression, with the strength of suppression inversely correlated with the advancement of ecological plant groups during succession. The establishment of the seedling suppression gradient was associated with variations in photosynthetic potential, mycorrhizal responsiveness, and root colonization intensity by AMF. The competition dynamics mediated by the CMN affect the composition and diversity of plant communities over time, reinforcing the importance of mycorrhizal interactions in plant ecology and ecosystem management, particularly in restoration and conservation contexts.

植物可以利用共同菌根网络（CMN）作为竞争途径，通过资源的不对称分配抑制其他植物。本研究的目的是评估来自成株Brachiaria brizantha、幼株Heliocarpus popayanensis和幼株Cariniana estrellensis的CMN对这三种植物幼苗生长的竞争动态。植物和幼苗是在含有本地丛枝菌根真菌（AMF）的基质中培育的。进行了方差分析，并用 Tukey 检验比较了平均值。结果表明，三种植物的幼苗生长都受到来自成年 B. brizantha 的 CMN 的显著抑制，受到来自幼年 H. popayanensis 的 CMN 的中度抑制，受到来自幼年 C. estrellensis 的 CMN 的弱度抑制。虽然 B. brizantha 的幼苗最初受到抑制，但它们最终发展起来并抑制了 H. popayanensis 和 C. estrellensis 的幼苗，导致营养通量逆转。这种转变证实了互惠奖赏机制。研究观察到幼苗抑制梯度的形成，抑制强度与生态植物群在演替过程中的进展成反比。幼苗抑制梯度的形成与光合作用潜力、菌根反应性和 AMF 根定植强度的变化有关。由 CMN 介导的竞争动态会随着时间的推移影响植物群落的组成和多样性，从而加强了菌根相互作用在植物生态学和生态系统管理中的重要性，尤其是在恢复和保护环境方面。

{"title":"Occurrence of plant suppression gradients through common mycorrhizal networks across ecological groups during successional dynamics","authors":"Breynner G.P. Bertagnoli , José Antonio Pimenta , Arnaldo Colozzi Filho , Waldemar Zangaro","doi":"10.1016/j.pedobi.2024.151006","DOIUrl":"10.1016/j.pedobi.2024.151006","url":null,"abstract":"<div><div>Plants can utilize the common mycorrhizal network (CMN) as a pathway for competition, enabling the suppression of other plants through an asymmetric distribution of resources. This study aimed to assess the competitive dynamics of CMN originating from adult <em>Brachiaria brizantha</em> plants, juvenile <em>Heliocarpus popayanensis</em>, and juvenile <em>Cariniana estrellensis</em> on the growth of seedlings of these three species. Plants and seedlings were cultivated in substrates containing native arbuscular mycorrhizal fungi (AMF). Analysis of variance was conducted, and means were compared using the Tukey test. The results indicated that seedling growth of all three species was significantly suppressed by the CMN originating from adult <em>B. brizantha</em>, moderately suppressed by the CMN from juvenile <em>H. popayanensis</em>, and weakly suppressed by the CMN from juvenile <em>C. estrellensis</em>. While the seedlings of <em>B. brizantha</em> initially experienced suppression, they eventually developed and suppressed the juvenile plants of both <em>H. popayanensis</em> and <em>C. estrellensis</em>, leading to a reversal of the nutrient flux. This shift corroborated the mechanism of reciprocal reward. The study observed the formation of a gradient in seedling suppression, with the strength of suppression inversely correlated with the advancement of ecological plant groups during succession. The establishment of the seedling suppression gradient was associated with variations in photosynthetic potential, mycorrhizal responsiveness, and root colonization intensity by AMF. The competition dynamics mediated by the CMN affect the composition and diversity of plant communities over time, reinforcing the importance of mycorrhizal interactions in plant ecology and ecosystem management, particularly in restoration and conservation contexts.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"107 ","pages":"Article 151006"},"PeriodicalIF":2.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Natural forest restoration enhanced abundance and changed composition of soil phosphorus cycling genes compared with plantations 与人工林相比，天然林恢复提高了土壤磷循环基因的丰度并改变了其组成

IF 2 3区农林科学 Q3 ECOLOGY

Pedobiologia

Pub Date : 2024-11-01 DOI: 10.1016/j.pedobi.2024.151005

Yun Wang , Hua Zheng , Chi Zhang , Falin Chen , Jing Zeng , Zhiyun Ouyang

How and to what extent forest restoration type influences phosphorus (P) cycling genes on abundance, diversity, and composition remain poorly understood, limiting the assessment of forest restoration types. Using a high-throughput functional gene microarray, we compared the abundance, diversity, and composition of P cycling genes in naturally restored natural secondary forests, artificially restored native Masson pine plantations, and introduced slash pine plantations in the red soil region of southern China. The abundance of P cycling genes, particularly phytase genes involved in organic P mineralization, was the highest in soils of natural secondary forests, followed by native Masson pine plantations, and finally, introduced slash pine plantations. The correlation between P cycling gene abundance and available P content exhibited an inverse pattern. P cycling gene composition varied significantly among the three forest restoration types. The similarity of P cycling gene composition in native Masson pine plantations to that of natural secondary forests was larger than that observed in introduced slash pine plantations. The vegetation-related factors of the ShannonWiener diversity index of trees, litter stock, tree biomass, and fine root surface area, and soil properties of total P, available P, clay content, silt content, and pH, significantly correlated with the P cycling gene composition. Maintaining high tree diversity is critical for supporting a high abundance of P cycling genes, which is beneficial for maintaining a high P status and active P cycling in forest soils. Natural forest restoration enhanced the abundance and changed the composition of soil P cycling genes compared with plantations.

人们对森林恢复类型如何以及在多大程度上影响磷（P）循环基因的丰度、多样性和组成仍然知之甚少，这限制了对森林恢复类型的评估。利用高通量功能基因芯片，我们比较了中国南方红壤地区自然恢复的天然次生林、人工恢复的原生马松人工林和引进的斜伐松人工林中磷循环基因的丰度、多样性和组成。在天然次生林土壤中，钾循环基因的丰度最高，尤其是参与有机钾矿化的植酸酶基因，其次是原生马松人工林，最后是引进的斜纹松人工林。P 循环基因丰度与可用 P 含量之间的相关性呈反比。三种森林恢复类型的 P 循环基因组成差异很大。原生马松人工林的 P 循环基因组成与天然次生林的相似性大于引进的斜纹松人工林。与植被相关的因素，如树木的香农维纳多样性指数、枯落物存量、树木生物量和细根表面积，以及土壤特性，如总磷、可利用磷、粘土含量、淤泥含量和 pH 值，与碳循环基因组成有显著相关性。保持树木的高度多样性对于支持高浓度的P循环基因至关重要，而高浓度的P循环基因有利于保持森林土壤中的高P状态和活跃的P循环。与人工林相比，天然林恢复提高了土壤中钾循环基因的丰度并改变了其组成。

{"title":"Natural forest restoration enhanced abundance and changed composition of soil phosphorus cycling genes compared with plantations","authors":"Yun Wang , Hua Zheng , Chi Zhang , Falin Chen , Jing Zeng , Zhiyun Ouyang","doi":"10.1016/j.pedobi.2024.151005","DOIUrl":"10.1016/j.pedobi.2024.151005","url":null,"abstract":"<div><div>How and to what extent forest restoration type influences phosphorus (P) cycling genes on abundance, diversity, and composition remain poorly understood, limiting the assessment of forest restoration types. Using a high-throughput functional gene microarray, we compared the abundance, diversity, and composition of P cycling genes in naturally restored natural secondary forests, artificially restored native Masson pine plantations, and introduced slash pine plantations in the red soil region of southern China. The abundance of P cycling genes, particularly phytase genes involved in organic P mineralization, was the highest in soils of natural secondary forests, followed by native Masson pine plantations, and finally, introduced slash pine plantations. The correlation between P cycling gene abundance and available P content exhibited an inverse pattern. P cycling gene composition varied significantly among the three forest restoration types. The similarity of P cycling gene composition in native Masson pine plantations to that of natural secondary forests was larger than that observed in introduced slash pine plantations. The vegetation-related factors of the Shannon<img>Wiener diversity index of trees, litter stock, tree biomass, and fine root surface area, and soil properties of total P, available P, clay content, silt content, and pH, significantly correlated with the P cycling gene composition. Maintaining high tree diversity is critical for supporting a high abundance of P cycling genes, which is beneficial for maintaining a high P status and active P cycling in forest soils. Natural forest restoration enhanced the abundance and changed the composition of soil P cycling genes compared with plantations.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"107 ","pages":"Article 151005"},"PeriodicalIF":2.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142655868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Forest types matter for the community and co-occurrence network patterns of soil bacteria, fungi, and nematodes 森林类型对土壤细菌、真菌和线虫的群落和共生网络模式至关重要

IF 2 3区农林科学 Q3 ECOLOGY

Pedobiologia

Pub Date : 2024-11-01 DOI: 10.1016/j.pedobi.2024.151004

Yudai Kitagami , Yosuke Matsuda

Tree growth influences the biological, physical, and chemical properties of the soil through the input of different types of litter and various root exudates. However, our understanding of tree-mediated effects on the composition and diversity of soil biota remains limited. This study aimed to determine the effects of physically neighboring forest types (i.e., an artificial Japanese cedar (Cryptomeria japonica) plantation vs. a broadleaf (Quercus serrata) secondary forest) on individual bacterial, fungal, and nematode communities and the associations among these inter-kingdoms. Bacterial, fungal, and nematode aggregates were estimated using MiSeq high-throughput sequencing system. The amplicon sequence variant richness of fungi and nematodes was significantly greater in the cedar plantation than in the broadleaf forest, and the three soil biota community structures were significantly clustered among the forest types. Environmental factors such as soil pH, C, N, and C/N ratio significantly influenced the three soil biota community structures. The bacterial–fungal–nematode co-occurrence network of the broadleaf forest had more nodes and edges than that of the cedar plantation. Moreover, Ascomycota and Basidiomycota fungi mainly co-occurred with fungivorous nematodes in the cedar and broadleaf forests, respectively. Our results suggested that unique soil biota communities and characteristic co-occurrence network patterns were established among the tripartite inter-kingdom relationships between adjacent forest types.

树木的生长会通过输入不同类型的废弃物和各种根系渗出物来影响土壤的生物、物理和化学特性。然而，我们对树木对土壤生物群组成和多样性的影响的了解仍然有限。本研究旨在确定物理上相邻的森林类型（即人工日本雪松（Cryptomeria japonica）种植园与阔叶（Quercus serrata）次生林）对单个细菌、真菌和线虫群落的影响，以及这些群落之间的关联。利用 MiSeq 高通量测序系统对细菌、真菌和线虫群落进行了估计。结果表明，杉木人工林中真菌和线虫的扩增子序列变异丰富度明显高于阔叶林，三种土壤生物群落结构在不同森林类型中呈显著聚类。土壤 pH 值、C、N 和 C/N 比等环境因素对三种土壤生物群落结构有明显影响。与杉木人工林相比，阔叶林的细菌-真菌-线虫共生网络具有更多的节点和边缘。此外，在雪松林和阔叶林中，子囊菌群和担子菌群真菌分别主要与食菌线虫共生。我们的研究结果表明，在相邻森林类型之间的三方生物群落间关系中建立了独特的土壤生物群落和特征共生网络模式。

{"title":"Forest types matter for the community and co-occurrence network patterns of soil bacteria, fungi, and nematodes","authors":"Yudai Kitagami , Yosuke Matsuda","doi":"10.1016/j.pedobi.2024.151004","DOIUrl":"10.1016/j.pedobi.2024.151004","url":null,"abstract":"<div><div>Tree growth influences the biological, physical, and chemical properties of the soil through the input of different types of litter and various root exudates. However, our understanding of tree-mediated effects on the composition and diversity of soil biota remains limited. This study aimed to determine the effects of physically neighboring forest types (i.e., an artificial Japanese cedar (<em>Cryptomeria japonica</em>) plantation vs. a broadleaf (<em>Quercus serrata</em>) secondary forest) on individual bacterial, fungal, and nematode communities and the associations among these inter-kingdoms. Bacterial, fungal, and nematode aggregates were estimated using MiSeq high-throughput sequencing system. The amplicon sequence variant richness of fungi and nematodes was significantly greater in the cedar plantation than in the broadleaf forest, and the three soil biota community structures were significantly clustered among the forest types. Environmental factors such as soil pH, C, N, and C/N ratio significantly influenced the three soil biota community structures. The bacterial–fungal–nematode co-occurrence network of the broadleaf forest had more nodes and edges than that of the cedar plantation. Moreover, Ascomycota and Basidiomycota fungi mainly co-occurred with fungivorous nematodes in the cedar and broadleaf forests, respectively. Our results suggested that unique soil biota communities and characteristic co-occurrence network patterns were established among the tripartite inter-kingdom relationships between adjacent forest types.</div></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"107 ","pages":"Article 151004"},"PeriodicalIF":2.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142655867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0