Pedobiologia最新文献

{"title":"Exploring the influence of ground-dwelling ant bioturbation activity on physico-chemical, biological properties and heavy metal pollution in coal mine spoil","authors":"Shbbir R. Khan ,&nbsp;Poonam C. Singh ,&nbsp;Martin Schmettow ,&nbsp;Satish K. Singh ,&nbsp;Neelkamal Rastogi","doi":"10.1016/j.pedobi.2024.150960","DOIUrl":"https://doi.org/10.1016/j.pedobi.2024.150960","url":null,"abstract":"<div><p>Coal mining activities increase the soil concentrations of heavy metals manifold thus impacting soil health and biodiversity. The understanding of the impact of bioturbation activities by ant colonies on soil in coal mine spoil site across different restoration ages is not studied. The study aimed to investigate the influence of bioturbation activities by two most common and distinct coal mine site inhabiting ant species (<em>C. compressus</em> and <em>C. longipedem</em>) at six different ages (2, 4, 6, 8, 10 and 12 years old) on the soil heavy metal concentrations of Fe, Zn, Mn, Cu, Ni, Pb, Cd and Cr, pH, OM, TC, TN, soil enzyme activity of DH, ACP, β-glucosidase and proteases properties of soil. Soil samples were collected from opencast coalmine spoils during October and November 2017. Reference (Ref.) soil samples (n=10 per site) were collected (from area adjacent to ant nest colony approximately 2–5 m distance) from a depth of 0–15 cm and ant nest debris soil of each ant species (n=10 per site) were collected from each site. Heavy metal pollution decreased and pH, OM, TC, TN and soil enzyme activity of DH, ACP, β-glucosidase and proteases of soil in both Ref. soil and ant nest debris soil increases with the increase of mine site restoration age. Our study revealed that different age of the mine spoil have more profound effects on the soil quality and heavy metal content. Contrary to our hypothesis, regression analysis did not support our notion that ant bioturbation activity directly accelerate heavy metal breakdown. Instead, our findings suggests that ant colonies prefer to construct their nest for the locations with lower heavy metal concentrations and higher enzyme activity and increase in soil porosity is a key factor behind the low heavy metal concentration in the nest debris soil.</p></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"104 ","pages":"Article 150960"},"PeriodicalIF":2.3,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140880102","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}

{"title":"Divergent responses between lineages of arbuscular mycorrhizal fungi to soil phosphorus and nitrogen availability","authors":"Brendan Delroy ,&nbsp;Hai-Yang Zhang ,&nbsp;Andrew Bissett ,&nbsp;Jeff R. Powell","doi":"10.1016/j.pedobi.2024.150934","DOIUrl":"10.1016/j.pedobi.2024.150934","url":null,"abstract":"<div><p>Arbuscular mycorrhizal (AM) associations are multifunctional. Two important functions they perform are facilitating nutrient uptake in host plants and protecting plants from biotic stress, among other functions. AM fungal taxa vary in how capably they perform these functions and can also respond differently to environmental selection. Therefore, there is a need to better understand how particular environmental variables might alter the response of AM fungal communities. Here, we analysed data from a DNA-based survey of fungal communities in soils collected throughout Australia to observe relationships among soil nitrogen and phosphorus availability and the abundance of two AM fungal taxa that reportedly vary in function – the Gigasporaceae (putatively more important for nutrient uptake) and Glomeraceae (putatively more important for biotic stress). Relationships were assessed in three vegetation types – grasslands, forests and woodlands – to assess whether associations with soil nutrition varied depending on carbon availability for AM fungi. Fungi from the Gigasporaceae decreased in frequency as available phosphorus increased, while those from the Glomeraceae increased or were unresponsive as available phosphorus increased. Similar patterns were observed for nitrate availability, although only in woodlands. These patterns are consistent with expectations that AM fungi from the Gigasporaceae, in general, are better suited to alleviate nutrient limitation in hosts as soil chemical fertility decreases. This knowledge may aid in implementing optimal strategies involving AM fungal inoculum best suited to the local conditions of future land management and agricultural projects.</p></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"103 ","pages":"Article 150934"},"PeriodicalIF":2.3,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0031405624009053/pdfft?md5=6a8bfda8325e42716bfca31ade938dbe&pid=1-s2.0-S0031405624009053-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139556465","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}

{"title":"Bacterial communities in the potato tuberosphere share similarities with bulk soil and rhizosphere communities, yet possess distinct features","authors":"Georgia Voulgari,&nbsp;Achim Schmalenberger","doi":"10.1016/j.pedobi.2024.150935","DOIUrl":"10.1016/j.pedobi.2024.150935","url":null,"abstract":"<div><p>To date, a paucity of studies have examined bacterial communities in tuberospheres. However, the function of these bacterial communities in healthy potato plants is still largely unknown. Here, we aimed to describe the structure and composition of tuberosphere bacteriomes and its capability to make organosulfur plant available using the rhizosphere and bulk soil bacterial community characteristics as a reference. Rhizosphere, tuberosphere and bulk soil was collected from two field grown potato varieties. Bacterial communities were characterized by 16S rRNA gene amplicon sequencing. Bacterial organosulfur mobilization indicators were evaluated with cultivation dependent and independent methods and were correlated (Spearman) with the relative abundance of bacterial families. The structure of tuberosphere bacterial communities either overlapped with the bulk soil or had similarities with the rhizosphere. Relative abundance of specific bacterial families were distinct between bulk soil, tuberosphere and rhizosphere. Tuberospheres had a tendency for higher arylsulfonate utilization compared to bulk soil. The families <em>Sphingomonadaceae, Sphingobacteriaceae</em> and <em>Rhizobiaceae</em> which presented a decline in their relative abundances from the rhizosphere to tuberosphere and bulk soil had positive correlations with organosulfur mobilizing indicators. Potato variety and soil characteristics played a role in structuring the tuberosphere bacterial communities. Tuberospheres represent an environment in-between bulk soil and rhizosphere indicative from the intermediate relative abundances of specific bacterial families. A moderately higher bacterial organosulfur mobilization activity in tuberospheres suggests that this microbial function may serve specific biological roles for potato tubers.</p></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"103 ","pages":"Article 150935"},"PeriodicalIF":2.3,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0031405624009065/pdfft?md5=f58313b2f1df9faee4bf76c177eb9d52&pid=1-s2.0-S0031405624009065-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139556321","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}

{"title":"Soil macrofauna and water-related functions in patches of regenerating Atlantic Forest in Brazil","authors":"Wilian C. Demetrio ,&nbsp;George G. Brown ,&nbsp;Breno Pupin ,&nbsp;Rafaela T. Dudas ,&nbsp;Reinaldo Novo ,&nbsp;Antônio C.V. Motta ,&nbsp;Marie L.C. Bartz ,&nbsp;Laura S. Borma","doi":"10.1016/j.pedobi.2024.150944","DOIUrl":"10.1016/j.pedobi.2024.150944","url":null,"abstract":"<div><p>The Atlantic Forest is the most threatened Brazilian biome, with less than 10% of its original surface cover remaining. Thus, several programs of payment for ecosystem services have been developed in this biome focusing on revegetation of degraded areas. Forest regeneration promotes the development of soil invertebrate communities that play an important role in soil processes, delivering a wide range of ecosystem services. We studied the changes in macrofauna communities in three forests under different regeneration stages and the relationship between these invertebrates and soil chemical and physical properties. Macrofauna and soil chemical and physical properties were sampled until 30 cm depth in three forest fragments of the Brazilian Atlantic Forest under different regeneration stages: young regenerating forest (∼8 years old), secondary forest in intermediate regeneration stage (∼20 years old) and native secondary forest fragment. No significant differences in saturated hydraulic conductivity (K_s) were observed among sites, however, the old native forest showed reduction in K_s in deeper layers compared to young regenerating forests. Several macrofauna taxa were positively correlated with K_s and soil carbon. The stage of regeneration modified the abundance and diversity of these invertebrates in general (except for earthworms), and the old native forest showed high abundance of most taxa. In conclusion, our study highlights the potential of macrofauna communities as robust indicators of soil functions re-establishment in regenerating forests within the Atlantic Forest biome. The observed positive correlations between macrofauna abundance and diversity with soil water infiltration and organic carbon content emphasize the key role of these invertebrates to essential ecosystem functions.</p></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"103 ","pages":"Article 150944"},"PeriodicalIF":2.3,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139665905","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}

{"title":"Soil nematode communities vary among populations of the iconic desert plant, Welwitschia mirabilis","authors":"Amy M. Treonis ,&nbsp;Eugene Marais ,&nbsp;Gillian Maggs-Kölling","doi":"10.1016/j.pedobi.2024.150943","DOIUrl":"10.1016/j.pedobi.2024.150943","url":null,"abstract":"<div><p>Scattered throughout the Namib Desert of Namibia are populations of <em>Welwitschia mirabilis</em>, a unique, low-lying, and slow-growing gymnosperm plant. We studied soils under <em>Welwitschia</em> plants and in adjacent interplant areas along a 400-km range to examine the potential of these plants as resource islands supporting nematode communities. We found significant differences in nematode density and community structure among the sites that were correlated to differences in climate, edaphic factors, and plant size and density. Soils from the Torra Conservancy site, which receives the most precipitation and had the highest density of <em>Welwitschia</em> plants, contained the highest organic matter and the most diverse nematode communities, with the broadest representation of nematode trophic groups. The largest and likely oldest <em>Welwitschia</em> plants occurred in the Messum Crater, the site with the least rainfall, which hosted the densest nematode communities (mean = 14,683 kg⁻¹ soil). These communities consisted almost entirely of the bacterial-feeding nematode <em>Panagrolaimus</em> sp. Two other sites, Welwitschia Plain, a well-known tourist destination, and Hope Mine, the southernmost known population, contained the fewest nematodes with moderate levels of diversity. Differences in nematode abundance between <em>Welwitschia</em> soils and interplant soils were not discernable at three of the four field sites, suggesting the resource island effect is not very strong. Interplant spaces also support diverse and abundant nematode communities, perhaps due to the growth of cryptobiotic crusts or ephemeral rainfall-induced vegetation.</p></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"103 ","pages":"Article 150943"},"PeriodicalIF":2.3,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139679381","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}

{"title":"Impacts of garlic mustard (Alliaria petiolata, Brassicaceae) invasion on oribatid mites in urban forest soils vary with the size of the invaded patch","authors":"Leah Flaherty ,&nbsp;Melissa Hills ,&nbsp;Victoria Giacobbo ,&nbsp;Paige Kuczmarski ,&nbsp;Morgan Momborquette ,&nbsp;Lisa Lumley","doi":"10.1016/j.pedobi.2024.150933","DOIUrl":"10.1016/j.pedobi.2024.150933","url":null,"abstract":"<div><p><span>Investment in non-native species management should be informed by knowledge of impact, including on native biodiversity and ecosystem function. Oribatid<span> soil mites<span> may be useful to evaluate the impacts of plant invasions since they are bioindicators of disturbance and soil ecosystem health. Still, more research is needed to characterize their responses to plant invasion, especially at the species level. Our objective was to determine the effect of invasion of urban forest understories by an allelopathic weed (garlic mustard, </span></span></span><em>Alliaria petiolata</em><span><span><span> (Brassicaceae)) on belowground oribatid mite species and communities. At two sites in central Alberta (Canada), over two years, we examined adult oribatid (≥ 300 µm) community assemblages, species richness, evenness, diversity, and abundance in plots invaded with garlic mustard and uninvaded plots with native vegetation. Environmental covariates known to be associated with </span>soil invertebrate<span> communities were also evaluated. Results suggest that the spatial extent of the garlic mustard invasion (patch area) mediates its impact on oribatid mite communities. However, there were no community-level impacts when considering invasion as binary (garlic mustard vs. native vegetation). Garlic mustard patch area influenced oribatid community composition and was positively related to species richness and several abundance metrics. The oribatid species we observed benefiting from garlic mustard invasion have been previously associated with disturbed soils. The mechanisms driving these patterns need more research, but we hypothesize they may relate to patch-specific resident times. Site was also a dominant factor influencing oribatid mite communities, and impacts of year, litter depth, and canopy cover were also detected at the species and/or community level. These findings contribute to our understanding of the impact of an invasive weed on bioindicating soil mite communities and species and highlight the importance of considering invasion context, including spatial extent when evaluating the impacts of </span></span>invasive species on belowground invertebrate communities.</span></p></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"103 ","pages":"Article 150933"},"PeriodicalIF":2.3,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139508763","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}

{"title":"Contradiction with enzymatic stoichiometry theory: Persistent low ratios of β-glucosidase to phosphomonoesterase following 10-year continuous phosphorus fertilization in three subtropical forests","authors":"Taiki Mori ,&nbsp;Cong Wang ,&nbsp;Senhao Wang ,&nbsp;Wei Zhang ,&nbsp;Jiangming Mo","doi":"10.1016/j.pedobi.2024.150931","DOIUrl":"10.1016/j.pedobi.2024.150931","url":null,"abstract":"<div><p>The ratio of β-glucosidase (BG) to phosphomonoesterase (PME) activity (BG:PME) is often used to predict the intensity of microbial phosphorus (P) shortage, with lower BG:PME indicating stronger P shortage (enzymatic stoichiometry theory). Here, we demonstrated that 10-year continuous P fertilization as high as 150 kg P ha⁻¹ yr⁻¹ in the form of NaH₂PO₄ solution did not elevate the BG:PME up to the level of other terrestrial ecosystems. The BG:PME of primary, secondary, and planted forests were 0.094, 0.067, and 0.089, respectively in P-fertilized plots, which were much lower than global average (0.62 ± 0.04), despite the fact that Bray-extracted P contents were substantially elevated (more than 600 times). Thus, the findings of the current study suggest that BG:PME overestimates P shortage in our P-enriched forests, implying that the enzymatic stoichiometry theory may not be universally applicable.</p></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"103 ","pages":"Article 150931"},"PeriodicalIF":2.3,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139556467","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}

{"title":"Long–term (25 years) continuous cotton cropping combined with residue incorporation affects the fungal communities in reclaimed saline soil","authors":"Hong Chen ,&nbsp;Lei Yang ,&nbsp;Bede S. Mickan ,&nbsp;Zaixin Li ,&nbsp;Fenghua Zhang","doi":"10.1016/j.pedobi.2023.150928","DOIUrl":"10.1016/j.pedobi.2023.150928","url":null,"abstract":"<div><p><span><span><span>Soil fungi are essential in the degradation of </span>crop residues<span> in natural systems. However, how long–term continuous cropping combined with residue incorporation (CCRI) affects the fungal communities<span> in reclaimed saline soils is still unclear. In this study, CCRI was implemented in a reclaimed salinized farmland for 0 (control group), 5, 10, 15, 20, and 25 years to explore the effects on </span></span></span>soil properties<span> and fungal communities. The results showed that CCRI reduced soil pH, electrical conductivity<span> (EC), and available potassium (AK) by 2.6–8.3%, 24.0–71.4%, and 9.1–59.4%, respectively, and increased soil organ carbon (SOC), total nitrogen (TN), available phosphorus (AP), and microbial biomass carbon (MBC) by 36.0–117.2%, 84.2–173.4%, 18.5–344.8%, and 16.0–206.8%, respectively, compared with the control group (0–yr treatment). CCRI increased soil fungal species richness, but this effect decreased after 15–yr CCRI treatment; </span></span></span>Ascomycota<span><span> had the highest relative abundance (75.8–90.9%) in the CCRI soils. CCRI treatments significantly reduced the relative abundance of symbiotroph, saprotroph, and pathotroph; Especially, the relative abundance of </span>plant pathogen<span> fungi was significantly reduced by (25.5–36.7%), and that of arbuscular mycorrhizal fungi<span> (AMF) was significantly increased (0.01–0.07%), compared with the control group. Besides, the main soil properties affecting soil fungal community were pH and AK. Overall, the 10 – 15 years CCRI treatment was most beneficial for soil nutrient accumulation and maintaining the richness and diversity of fungal communities. However, it also decreased the abundance of some beneficial fungi and increased soil pathogenic fungi. Therefore, the duration of CCRI can not exceed 15 years, and attention can be paid to maintaining the stability of soil fungal community by regulating soil pH and AK content to reduce the negative impact of long term CCRI. This study will have important guiding significance for soil health improvement in arid areas.</span></span></span></p></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"102 ","pages":"Article 150928"},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139028421","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}

{"title":"Taking sides? Aspect has limited influence on soil environment or litter decomposition in pan-European study of roadside verges","authors":"A. Amstutz ,&nbsp;LB. Firth ,&nbsp;JI. Spicer ,&nbsp;P. De Frenne ,&nbsp;L. Gómez-Aparicio ,&nbsp;BJ. Graae ,&nbsp;S. Kuś ,&nbsp;S. Lindmo ,&nbsp;A. Orczewska ,&nbsp;F. Rodríguez-Sánchez ,&nbsp;P. Vangansbeke ,&nbsp;T. Vanneste ,&nbsp;ME. Hanley","doi":"10.1016/j.pedobi.2023.150927","DOIUrl":"10.1016/j.pedobi.2023.150927","url":null,"abstract":"<div><p>In addition to well-known effects on species ecophysiology, phenology, and distributions, climate change is widely predicted to impact essential ecosystem services such as decomposition and nutrient cycling. While temperature and soil moisture are thought to influence litter decomposition, elucidating consistent soil process responses to observed or predicted shifts in climate have proven difficult to evidence. Here we investigated how aspect (i.e., north-south orientation), a natural model for variation in soil temperature, influenced soil physico-chemical conditions and decomposition of two standardised litter types (Green tea and Rooibos teabags) in Pole-facing (PF) and Equator-facing (EF) roadside verges spanning a 3000 km and 27° latitudinal gradient across Europe. Despite average daily temperatures being 1.5 - 3.0 °C warmer on EF than PF slopes, there were only minor region-specific differences in initial soil physico-chemical conditions and short-term variation in litter decomposition (i.e., litter mass loss was higher in EF-verges for the first month of deployment only) associated with aspect. We conclude that previously observed differences in soil environments and the decomposition process associated with slope orientation, is largely litter or environment specific, although medium-term soil-decomposition in semi-natural grassland ecosystems may also be insensitive to the magnitude of temperature variation within the range predicted by the IPCC SSP1–2.6 emissions scenario. Nonetheless, consistent average and extreme temperature differences between adjacent PF- and EF-aspects along roadside verges provides a model system to explore exactly how resilient the soil environment and the micro-organisms responsible for decomposition, are to temperature variation.</p></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"102 ","pages":"Article 150927"},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0031405623079957/pdfft?md5=14fdbffdaaadd252595cd7678cbe9ef2&pid=1-s2.0-S0031405623079957-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139462049","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}

{"title":"Mineral fertilization impacts microbial activity and endophytic fungi but not microbial biomass in semiarid grasslands","authors":"Santiago Toledo ,&nbsp;Veronica Gargaglione ,&nbsp;Pablo L. Peri","doi":"10.1016/j.pedobi.2023.150929","DOIUrl":"10.1016/j.pedobi.2023.150929","url":null,"abstract":"<div><p><span><span>Applications of mineral fertilizer<span> to grasslands have become more frequent in recent decades to increase forage production. However, the impacts of mineral fertilizer on the soil </span></span>microbiome<span><span> is poorly understood in cold semiarid grassland ecosystems of Southern Patagonia, Argentina. Therefore, our objective was to analyze experimentally the influence of mineral nutrient fertilization (N, P, K, and NPK in combination) on </span>soil microbial community<span> attributes, such as microbial biomass<span> carbon (MBC) and nitrogen (MBN), soil basal respiration<span> (SBR), microbial metabolic coefficients, the colonization of endophytic fungi such as arbuscular mycorrhizal (AM) fungi, and dark septate endophytes (DSE), and aboveground plant productivity. Mineral fertilization with macronutrients (N, P, K, and NPK) decreased the SBR, qCO</span></span></span></span></span>₂<span><span>, AM fungi and DSE fungi, but did not generate changes in MBC and MBN. The magnitude of these responses depends on years after fertilization. We found that soil microbiome was strongly dependent on a range of biotic and abiotic factors<span>, such as growing season precipitation, aboveground plant biomass the relationship between the microbial biomass and microbial respiration, and between endophytic fungi and plants. This work improved our understanding of the soil microorganisms’ response to mineral </span></span>fertilizer application<span> and provides new insights into soil nutrient dynamics and ecosystem functioning.</span></span></p></div>","PeriodicalId":49711,"journal":{"name":"Pedobiologia","volume":"102 ","pages":"Article 150929"},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139065691","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}