European Journal of Soil Biology最新文献

{"title":"Vegetable residues retention: An effective and environment friendly way to handle tomato wastes from greenhouse production","authors":"Xiaomei Sun ,&nbsp;Sijin Chen ,&nbsp;Huan Li ,&nbsp;Jinxia Li ,&nbsp;Guojun Han ,&nbsp;Haobing Dong ,&nbsp;Jiangwei Che ,&nbsp;Qin Zhang","doi":"10.1016/j.ejsobi.2024.103600","DOIUrl":"https://doi.org/10.1016/j.ejsobi.2024.103600","url":null,"abstract":"<div><p>The improper disposal of vegetable waste often leads to the risk of non-point agricultural pollution. In order to enhance our understanding of how soil quality and successive tomato production respond to the anaerobic incorporation of vegetable residues, greenhouse experiments were conducted in 2019 and 2020. The fresh tomato residues, approximately 17 tons per hectare from greenhouses, were incorporated with carefully selected decomposing agents “Yuandongli” and “Sumao” at three different levels. The results revealed a significant increase in both Soil Quality Index (SQI) and crop yield at the crop harvest stage for the tomato residues incorporation group, ranging from 7.4% to 24.50% and 2.3%–14.9%, respectively, compared to the control group. Specifically, the levels of soil organic matter (SOM), available phosphorus (AP), available potassium (AK), microbial biomass carbon (MBC), and microbial biomass nitrogen (MBN) increased significantly with the anaerobic incorporation of vegetable residues by an increase of 4.5%–12.3%, 4.1%–31.0%, 2.3%–17.8%, 7.8%–29.2% and 20.0%–35.7%, respectively, compared to the control group. Additionally, enzyme activities such as soil sucrase, urease, and alkaline phosphatase were averagely enhanced by 38.9%, 28.35 and 48.6%. Moreover, the incorporation of tomato residue led to a significant decrease in both the amount of soil fungi and plant parasitic nematodes, with reductions ranging from 28.8% to 58.2% and 401.% to 85.6%, respectively, at the time of crop harvest. The direct and indirect effects of soil properties on SQI and subsequent crop yields were evaluated using a structural equation model. It was found that the contribution of soil properties, including SOM, amount of plant parasitic nematodes (APN), MBC, and AP, to driving changes in SQI accounted for 79%. Furthermore, these indexes explained 49% of the variance in crop yield. Although the type of decomposing agent had varying effects on soil properties, it had a negligible impact on SQI. Furthermore, both SQI and tomato yield did not exhibit a continuous response to the quantity of decomposing agents applied. Our findings suggest that the recommended dosages of the decomposing agent in the instructions are cost-effective and reasonable. The direct anaerobic incorporation of vegetable residues, particularly under greenhouse production conditions, could serve as an efficient and environmentally-friendly management strategy for tomato residues.</p></div>","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"120 ","pages":"Article 103600"},"PeriodicalIF":4.2,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139975812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of earthworms on microbial community structure, functionality and soil properties in soil cover treatments for mine tailings rehabilitation","authors":"Sara Pelaez-Sanchez ,&nbsp;Olaf Schmidt ,&nbsp;Jan Frouz ,&nbsp;Kateřina Čápová ,&nbsp;Ronan Courtney","doi":"10.1016/j.ejsobi.2024.103603","DOIUrl":"https://doi.org/10.1016/j.ejsobi.2024.103603","url":null,"abstract":"<div><p>While earthworm inoculation is viewed as a promising strategy to accelerate soil formation and ecosystem development in post-mining substrates, limited studies are field-based and focus on the influence of earthworms on microbial communities. This study investigated the effects of earthworm inoculations on soil microbial catabolic profiles, microbial community structure and physical properties. Large (1 m³) macrocosms were filled with 60–80 cm mine tailings and 40 cm of organic-rich engineered soil (SOM 8.5 g/kg) and inoculated treatments of: (1) without earthworms (Tc), (2) with one endogeic species (<em>Allolobophora chlorotica</em>) (T₁), 5.8 g/m², (3) with a mix of anecic species <em>Lumbricus</em> sp., <em>Lumbricus friendi</em> and <em>Lumbricus terrestris</em> (T₂), 10.5 g/m² (4) with two species of two ecological groups, the endogeic <em>A. chlorotica</em> and the epigeic <em>Lumbricus rubellus</em> (T₃), 4.0 g/m². Earthworm survival was not evaluated due to the large container size and logistics. After six months, soil catabolic profile (MicroResp™), community structure (PLFA and NLFA), and soil physicochemical properties were analysed. MicroResp™ showed that multiple substrate-induced respiration (9.2 μg CO₂–C g⁻¹ soil h⁻¹) and microbial biomass (1.5 mg/kg soil) were higher in the treatment with endogeic and epigeic worms. The decomposition rate (k) of 0.1 was also higher than treatments with no earthworms. Water holding capacity, bulk density, aggregate stability and labile carbon showed no significant difference over time and among treatments. Overall, earthworm inoculation positively influenced microbial respiration. These findings showing the role of earthworms on microbial activity and community structure in soil covers have significant implications for management of ecosystem processes and sustainability in post-mining sites. However, the study also highlights the need for extended monitoring periods under natural field conditions to fully comprehend the complex interactions between earthworm ecological groups and microbial functionality.</p></div>","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"120 ","pages":"Article 103603"},"PeriodicalIF":4.2,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1164556324000098/pdfft?md5=ac4b04c086275b5276a67f4e0213ae6d&pid=1-s2.0-S1164556324000098-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139975813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impacts of soil engineering processes and anthropogenic barriers on earthworm communities in urban areas","authors":"Jeanne Maréchal ,&nbsp;Kevin Hoeffner ,&nbsp;Xavier Marié ,&nbsp;Daniel Cluzeau","doi":"10.1016/j.ejsobi.2024.103598","DOIUrl":"https://doi.org/10.1016/j.ejsobi.2024.103598","url":null,"abstract":"","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"120 ","pages":"Article 103598"},"PeriodicalIF":4.2,"publicationDate":"2024-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139945219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of precipitation changes on soil heterotrophic respiration and microbial activities in a switchgrass mesocosm experiment","authors":"Wei Dai ,&nbsp;Madhav Parajuli ,&nbsp;Siyang Jian ,&nbsp;Dafeng Hui ,&nbsp;Philip Fay ,&nbsp;Jianwei Li","doi":"10.1016/j.ejsobi.2024.103602","DOIUrl":"https://doi.org/10.1016/j.ejsobi.2024.103602","url":null,"abstract":"<div><p>Precipitation changes altered soil heterotrophic respiration, but the underlying microbial mechanisms remain rarely studied. This study conducted three-year switchgrass (<em>Panicum virgatum</em> L.) mesocosm experiment to investigate soil heterotrophic respiratory responses to altered precipitation. Five treatments were considered, including ambient precipitation (P0), two wet treatments (P+33 and P+50: 33% and 50% enhancement relative to P0), and two drought treatments (P-33 and P-50: 33% and 50% reduction relative to P0). The plant's aboveground biomass (AGB), soil organic carbon (SOC), total nitrogen (TN), microbial biomass carbon (MBC), heterotrophic respiration (R_s), biomass-specific respiration (R_ss: respiration per unit of microbial biomass as a reciprocal index of microbial growth efficiency), and extracellular enzymes activities (EEAs) were quantified in soil samples (0–15 cm). Despite significantly different soil moisture contents among treatments, results showed no impact of precipitation treatments on SOC and TN. Increasing precipitation had no effect, but decreasing precipitation significantly reduced plant AGB. Relative to P0, P+33 significantly increased R_s by more than 3-fold and caused no changes in MBC, leading to significantly higher R_ss (<em>P</em> &lt; 0.05). P+33 also significantly increased hydrolytic enzyme activities associated with labile carbon acquisition (<em>C</em>_<em>acq</em>) by 115%. The only significant effect of drought treatments was the decreased <em>β</em>-<span>d</span>-cellobiosidase (<em>CBH</em>) and peroxidase (<em>PEO</em>) under P-33. Nonparametric analyses corroborated the strong influences of moisture and <em>CBH</em> on the enhanced precipitation, which stimulated soil respiratory carbon loss, likely driven by both elevated hydrolase activities and reduced microbial growth efficiency. However, the less sensitive drought effects suggested potential microbial tolerance to water deficiency despite depressed plant growth. This study informs the likely decoupled impacts of microbes and plants on soil heterotrophic respiration under changing precipitation in the switchgrass mesocosm experiment.</p></div>","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"120 ","pages":"Article 103602"},"PeriodicalIF":4.2,"publicationDate":"2024-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1164556324000086/pdfft?md5=3ddc2d88ae1238da4802553fdf3c49f6&pid=1-s2.0-S1164556324000086-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139942599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soil moisture drives the response of soil microbial nutrient limitation to N and P additions in an Inner Mongolian meadow steppe","authors":"Hong Xiao ,&nbsp;Yuping Rong ,&nbsp;Pengzhen Li ,&nbsp;Yuling Liu","doi":"10.1016/j.ejsobi.2024.103601","DOIUrl":"https://doi.org/10.1016/j.ejsobi.2024.103601","url":null,"abstract":"<div><p>The metabolic activity of soil microorganisms is often limited by soil nutrient availability. Fertilization can increase available nutrient content, but nutrient limitations may persist because of imbalances in nutrient inputs. However, the mechanisms driving the response of soil microbial nutrient limitation to N and P application in grasslands remain unclear. To address this issue, we applied fifteen fertilization treatments composed of five N levels (0, 1.55, 4.65, 13.95, 27.9 g N m⁻² y^r−1) and three P levels (0, 5.24, 10.48 g P m⁻² yr⁻¹) to a meadow steppe in Inner Mongolia across three years using a split-plot experiment design. Soil microbial biomass and extracellular enzyme activities were analyzed in samples collected from each plot in May, July, and August. The addition of N significantly reduced microbial biomass carbon (MBC) in samples collected in May and increased microbial biomass nitrogen (MBN) in July samples, thus decreasing the ratio of MBC:MBN in both months. P addition significantly increased microbial biomass phosphorus (MBP), whereas it reduced the ratio of MBC:MBP and MBN:MBP. Using vector analysis, we found that vector angle was less than 45° across all sampling dates, indicating that soil microbial metabolism was predominately limited by N rather than P. The severity of microbial N limitation was attenuated by N addition, but was worsened by P addition in May and July. The severity of microbial C limitation was significantly intensified by N addition in May and July, and forced by P addition in July and August. Visual partitioning analysis showed that soil physicochemical and microbial properties explained 37% and 70% of variation in microbial C and N limitation, respectively. Besides soil available nutrient concentrations, soil water content (SWC) and pH were identified as the key factors driving microbial C and N limitations. The relative influence of SWC on microbial N limitation was highest across all sampling dates. According to PLS-SM modeling, SWC had a total effect of −0.349 on microbial N limitation, which was significantly higher than the effects than N addition (−0.192) and P addition (0.131). Overall, this study indicates that soil moisture was the primary control over the response of microbial nutrient limitation to N and P additions in a meadow steppe in Inner Mongolia.</p></div>","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"120 ","pages":"Article 103601"},"PeriodicalIF":4.2,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139749095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biodiversity in mosaic communities: Predicting soil microbial diversity using plant functional traits in alpine meadow","authors":"Zekun Liu ,&nbsp;Shiting Zhang ,&nbsp;Bayaerta ,&nbsp;Kechang Niu","doi":"10.1016/j.ejsobi.2024.103599","DOIUrl":"https://doi.org/10.1016/j.ejsobi.2024.103599","url":null,"abstract":"<div><p>It is well known that the mosaic patches of alpine meadows are primarily shaped by plant-soil interactions. However, we know little about whether and how plant functional traits mediate the influence of edaphic factors on soil microbial diversity through the mass and diversity effects. In this study, we investigated plant functional traits in five distinctive of mosaic patches (communities) dominated by different plant functional groups in a Tibetan alpine meadow. We measured key functional traits for every plant species within each plot to calculate the functional composition (i.e., community-weighted mean, CWM) and structure (i.e., functional diversity, FD) of the plant community to examine the mass and diversity effects of plants on soil microbial diversity. In general, the difference in soil microbial diversity across the mosaic communities can be predicted by changes in CWM and FD of plant communities incorporating edaphic factors. The change in FD of five plant traits alone can predict 46% variation for soil bacterial richness, and up to 91% variation for soil fungal richness when the direct effect of edaphic factors was included. In response to variations in soil available phosphorus and pH, an increase in plant CWM and FD of leaf phosphorus and nitrogen content significantly promoted the richness of soil bacteria but lowered soil fungal richness. Hence, plant functional traits play a critical role in mediating the effects of edaphic factors on soil microbial diversity through mass and diversity effects. Our study not only illustrates the functional significance of plant traits in shaping plant-soil interactions in mosaic communities of the Tibetan alpine meadow but also promotes research linking biodiversity in mosaic patches to the functionality of the fragile alpine ecosystem.</p></div>","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"120 ","pages":"Article 103599"},"PeriodicalIF":4.2,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139733197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of ant mounts (Formica exsecta) on subsoil properties, in a heathland","authors":"Rikke Reisner Hansen ,&nbsp;Søren Munch Kristiansen ,&nbsp;Christian Frølund Damgaard ,&nbsp;Joachim Offenberg","doi":"10.1016/j.ejsobi.2024.103597","DOIUrl":"https://doi.org/10.1016/j.ejsobi.2024.103597","url":null,"abstract":"<div><p><span><span>Ants are undisputed masters at transforming the local environments they inhabit, with subsequent vast effects on soil chemical and hydrological processes. Yet, it remains unclear how deep into the subsoil<span> these effects range, as most ant-soil studies focus on the topsoil. Furthermore, studies quantifying these effects on podzolized, and nutrient-poor </span></span>heathland soils remain scarce. We excavated 15 </span><span><em>Formica exsecta</em></span><span> ant mounds on a long-term, unmanaged heathland in Denmark. We sampled soil moisture, soil penetration resistance<span><span> (SPR), pH, total phosphorous content, and the thickness of each soil horizon at three positions at each mound: directly below the mound, at the edge of the mound, and an adjacent undisturbed reference soil. Results revealed that ant activity reduced soil moisture, loosened the soil, and increased the flow of total phosphorus to the deeper layers. Importantly, the cemented spodic horizons (hardpans) with waterlogging properties were penetrated by ant digging, resulting in potentially higher water </span>infiltration<span><span> into the subsoil. The ant activity within the otherwise undisturbed sandy subsoil below the hard pan caused a slight alteration in the thickness of each soil horizon and chemistry. These patchy, small-scale disturbances (mounds covered 0.06 % of the site) increase heathland soil heterogeneity<span> and affect subsoil properties in time. We conclude that ant mounds may play a previously overlooked role in heathland soil dynamics by penetrating the heathland hardpans and manipulating </span></span>soil chemistry and soil moisture. We argue that a viable mound-forming ant community is valuable for the soil heterogeneity of dry heathland ecosystems.</span></span></span></p></div>","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"120 ","pages":"Article 103597"},"PeriodicalIF":4.2,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139493537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Testing the impacts of invasive jumping worms at their northern range limit","authors":"Samantha Bennett ,&nbsp;Helen R.P. Phillips ,&nbsp;Anne C. Dalziel ,&nbsp;Lawrence R. Manzer,&nbsp;Erin K. Cameron","doi":"10.1016/j.ejsobi.2023.103590","DOIUrl":"https://doi.org/10.1016/j.ejsobi.2023.103590","url":null,"abstract":"<div><p>Earthworms can act as ecosystem engineers by altering soil structure, which impacts other organisms and ecosystem functioning. Jumping worms (family Megascolecidae) originating in Asia have been spreading in North America, extending their northern range limits to Ontario, Canada in the last decade and to New Brunswick in 2021. At the northern limits of their current range, little research has been done to examine the effects of jumping worms in these new habitats since their recent establishment. Our objectives were to evaluate: (1) how jumping worms impact soil nitrogen and soil carbon; (2) how their presence impacts the abundance of non-native European earthworms (family Lumbricidae); and (3) whether two sampling methods (i.e., mustard solution and wooden discs) are equally effective at detecting jumping worms. We sampled a residential property in Oromocto, New Brunswick, which was the first location where jumping worms were found in the province. Jumping worms did not have significant impacts on the abundance and biomass of European earthworms or soil carbon content in the top 5 cm of the soil, but they did significantly affect soil nitrogen levels. Both sampling methods were equally effective at detecting the presence of jumping worms. Further research is needed in managed landscapes, urban areas, and forests to determine the ecosystem impacts and invasion dynamics of jumping worms in Canada as this invasion progresses.</p></div>","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"120 ","pages":"Article 103590"},"PeriodicalIF":4.2,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1164556323001267/pdfft?md5=ee30952abb986d7c6bc7a30f7dc5587f&pid=1-s2.0-S1164556323001267-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139480289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rhizosphere microbial community changes due to weed-weed competition","authors":"Larissa Cassemiro Pacheco Monteiro ,&nbsp;Sergio Alberto Diaz-Gallo ,&nbsp;Christiano da Conceição de Matos ,&nbsp;Carolina Gonçalves da Silva ,&nbsp;André Marcos Massenssini ,&nbsp;Tiago Antônio de Oliveira Mendes ,&nbsp;Maurício Dutra Costa","doi":"10.1016/j.ejsobi.2023.103594","DOIUrl":"https://doi.org/10.1016/j.ejsobi.2023.103594","url":null,"abstract":"&lt;div&gt;&lt;p&gt;&lt;span&gt;&lt;span&gt;Many species of weeds are present in agricultural areas, but weeds with greater competitive ability normally become dominant in the field. Rhizosphere soil microbiota can influence weed-weed interactions. However, the role of rhizosphere &lt;/span&gt;soil microorganisms&lt;span&gt; in weed-weed interactions remains largely unexplored. In this study, we investigated the ecological relationships and microbial taxa present in the rhizosphere of weeds in monoculture and coexistence systems. The weed species &lt;/span&gt;&lt;/span&gt;&lt;span&gt;&lt;em&gt;Ageratum conyzoides&lt;/em&gt;&lt;/span&gt;, &lt;span&gt;&lt;em&gt;Ipomoea&lt;/em&gt;&lt;em&gt; ramosissima&lt;/em&gt;&lt;/span&gt;, and &lt;span&gt;&lt;em&gt;Bidens &lt;/em&gt;&lt;em&gt;pilosa&lt;/em&gt;&lt;/span&gt;&lt;span&gt; were grown in monoculture and coexistence pairs under greenhouse conditions for 80 days. The ecological relationships between weeds were analyzed by calculating the Relative Interaction Index (RII) based on the total dry mass of the plants. The rhizosphere microbiome&lt;span&gt; was analyzed after extracting the metagenomic DNA from rhizosphere microbial populations, followed by PCR amplification and sequencing of the 16S rDNA gene and ITS region, using the Illumina MiSeq platform. Competitive interactions were observed for all combinations of weed species. &lt;/span&gt;&lt;/span&gt;&lt;em&gt;Ageratum conyzoides&lt;/em&gt;&lt;span&gt; showed the greatest decrease in dry matter production due to competition. Weed-weed competition changed rhizosphere microbial community composition and bacterial diversity. The abundance of different bacterial genera in rhizosphere soil varied according to the treatments. When comparing the competition between &lt;/span&gt;&lt;em&gt;A. conyzoides&lt;/em&gt; and &lt;em&gt;B. pilosa&lt;/em&gt; and their respective monocultures, the abundances of &lt;em&gt;Opitutus&lt;/em&gt;, Diplorickettisiales uncultured and &lt;span&gt;&lt;em&gt;Bdellovibrio&lt;/em&gt;&lt;/span&gt; increased in &lt;em&gt;B. pilosa&lt;/em&gt; monoculture. When comparing the competition between &lt;em&gt;A. conyzoides&lt;/em&gt; and &lt;em&gt;I. ramosissima&lt;/em&gt; and their respective monocultures, the abundance of &lt;span&gt;&lt;em&gt;Pseudonocardia&lt;/em&gt;&lt;/span&gt; increased while the abundance of &lt;em&gt;Fimbriiglobus&lt;/em&gt; decreased in &lt;em&gt;A. conyzoides&lt;/em&gt; monoculture. Already the abundances of &lt;em&gt;Actinospica&lt;/em&gt;, &lt;span&gt;&lt;em&gt;Chitinophaga&lt;/em&gt;&lt;/span&gt;, &lt;em&gt;Gemmatirosa&lt;/em&gt;, 1921-2 and &lt;span&gt;&lt;em&gt;Hymenobacter&lt;/em&gt;&lt;/span&gt; decreased &lt;em&gt;I. ramosissima&lt;/em&gt; monoculture. When comparing the competition between &lt;em&gt;B. pilosa&lt;/em&gt; and &lt;em&gt;I. ramosissima&lt;/em&gt;, and their respective monocultures, the abundances of &lt;span&gt;&lt;em&gt;Flexibacter&lt;/em&gt;&lt;/span&gt; and Candidatus Xiphinematobacter decreased &lt;em&gt;I. ramosissima&lt;/em&gt; monoculture. The abundances of &lt;span&gt;&lt;em&gt;Clostridium&lt;/em&gt;&lt;/span&gt; and &lt;span&gt;&lt;em&gt;Rhodobacter&lt;/em&gt;&lt;/span&gt; increased in competition while the abundance of &lt;em&gt;Pajaroellobacter&lt;/em&gt; increased in &lt;em&gt;B. pilosa&lt;/em&gt; monoculture. The fungal genera that had their abundances significantly altered were &lt;span&gt;&lt;em&gt;Scytalidium&lt;/em&gt;&lt;/span&gt;, whose abundance decreased in competition of &lt;em&gt;A. conyzoides&lt;/em&gt; and &lt;em&gt;B. pilosa&lt;/em&gt; when compared to t","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"120 ","pages":"Article 103594"},"PeriodicalIF":4.2,"publicationDate":"2024-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139433807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tree species replacement from birch to spruce affects eukaryome in boreal forest soil","authors":"Sunil Mundra ,&nbsp;Dinesh Sanka Loganathachetti ,&nbsp;Håvard Kauserud ,&nbsp;Anna Maria Fiore-Donno ,&nbsp;Tonje Økland ,&nbsp;Jørn-Frode Nordbakken ,&nbsp;O. Janne Kjønaas","doi":"10.1016/j.ejsobi.2023.103593","DOIUrl":"https://doi.org/10.1016/j.ejsobi.2023.103593","url":null,"abstract":"<div><p>Large-scale replacements of native birch with spruce have been carried out in Western Norway for economic reasons. This tree species shift potentially affects biotic components such as the eucaryome, consisting of microscopic animals (Metazoa), protists and fungi, which are key players in the functioning of forest ecosystem. The impact on the belowground eukaryome and its interactions with vegetation and soil properties is not well assessed. We examined the impact of replacing native birch with Norway spruce plantations on the eukaryome of the boreal forest floor in Western Norway using 18S rDNA metabarcoding. The tree species shift from birch to spruce had significant impacts on the eukaryome at both taxonomic (Metazoa) and functional categories (phagotrophs, phototrophs, parasites and osmotrophs). The distinct differences in eukaryome communities were related to changes in understorey vegetation biomass and soil chemistry following the tree species shift. This had a negative effect on eukaryome richness, particularly affecting phagotrophs and parasites, while the opposite was observed for osmotroph richness. Our results indicated that the spruce plantations altered the eukaryome communities and their food-web patterns compared to what was found in the native birch forest soil. This information should be taken into consideration in forest management planning.</p></div>","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"120 ","pages":"Article 103593"},"PeriodicalIF":4.2,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1164556323001292/pdfft?md5=2d40357547353cc3e3398c539429f1ea&pid=1-s2.0-S1164556323001292-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139433827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}