Article
Soil Science
Parag Bhople, Abdul Samad, Adnan Sisic, Livio Antonielli, Angela Sessitsch, Katharina Keiblinger, Ika Djukic, Franz Zehetner, Sophie Zechmeister-Boltenstern, Rainer Georg Joergensen, Rajasekaran Murugan
Summary: Soil fungi play a crucial role in decomposing organic matter and regulating carbon and nutrient balance in terrestrial ecosystems. This study investigated the diversity and community structure of soil fungi along elevation gradients with distinct parent material properties in Austrian alpine sites. The results showed that elevation-induced changes in vegetation and soil pH influenced the fungal community structures. Parent material indirectly modulated fungal communities through vegetation, and changes in fungal structural composition could have important consequences on ecosystem carbon balances.
APPLIED SOIL ECOLOGY
(2022)
Article
Agronomy
Tianle Xu, Xiao Chen, Yanhui Hou, Biao Zhu
Summary: The study found that microbial communities in two alpine ecosystems on the Tibetan Plateau showed significant shifts in biomass, community composition, diversity, and potential functioning along the soil profile. Different microbial groups exhibited varied patterns of vertical diversity, which may have important implications for carbon and nutrient cycling in alpine ecosystems along the soil profile.
Article
Ecology
Yanli Jing, Xueli Ding, Xuechao Zhao, Peng Tian, Fuming Xiao, Qingkui Wang
Summary: Nitrogen and phosphorus fertilization have significant effects on soil microbes and their residues, with the interactive effect of N and P promoting fungal residue accumulation in small macroaggregates.
EUROPEAN JOURNAL OF SOIL BIOLOGY
(2022)
Article
Soil Science
Rajasekaran Murugan, Parag Bhople, Ika Djukic, Franz Zehetner, Katharina Keiblinger, Michael Zimmermann, Sophie Zechmeister-Boltenstern, Rainer Georg Joergensen
Summary: The study showed that under different temperature treatments, the release of carbon dioxide from the soil varied, with bedrock properties having a greater impact on SOC release, enzyme activities, and microbial communities than elevation levels or vegetation types.
APPLIED SOIL ECOLOGY
(2021)
Article
Environmental Sciences
Sheng-Yun Chen, Pei-Jie Wei, Tong-Hua Wu, Qing-Bai Wu, Fan-Di Luo
Summary: Permafrost degradation has a significant impact on carbon storage in alpine ecosystems, and the sensitivity of different stages of permafrost degradation to climate change varies. The Shule River headwaters on the northeastern margin of the Qinghai-Tibetan Plateau were selected for the study. Results showed that alpine ecosystems act as carbon sinks, and permafrost degradation changes from promotion to inhibition on carbon density.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Microbiology
Sarah Semeraro, Pascal Kipf, Renee-Claire Le Bayon, Sergio Rasmann
Summary: The decomposition of organic matter varies across ecosystems, and local ecological conditions play a significant role in this process. This study investigated the effects of solar radiation on the decomposition rates of green tea and rooibos tea in different habitats within the Swiss Alps. The results showed that solar radiation was the primary driver of decomposition rates for both tea types.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Adugna Feyissa, Syed Turab Raza, Xiaoli Cheng
Summary: By studying the soil in alpine forest and grassland in the Yulong Mountains of Southwest China, it was found that the organic carbon content and aggregate stability in the soil increased with elevation, indicating that the carbon stability in the soil improves with higher elevation.
Article
Ecology
Maria Florencia Dominchin, Romina Aylen Verdenelli, Micaela Gisell Berger, Antonio Aoki, Jose Manuel Meriles
Summary: The combined application of peanut biochar and urea is found to have significant effects on soil microbial community structure and function, with biochar and management practices playing a more crucial role than urea. The study suggests that biochar addition, especially at higher rates, can enhance enzyme activities related to macronutrients and increase certain bacterial and fungal populations in soil. Additionally, the application of urea also increased urease activity, showing a positive correlation with fungal biomass. The research indicates that combining biochar and urea under appropriate soil management practices may be a viable strategy for improving soil microbial quality.
EUROPEAN JOURNAL OF SOIL BIOLOGY
(2021)
Article
Ecology
Minxia Liu, Yibo Ma, Cheng Liu, Chun Liang Yang
Summary: This study aimed to quantify plant community composition and species abundance distribution in alpine meadows and assess the contribution of rare and common species. The results showed that ecological niche differentiation is the main factor influencing species abundance distribution, and common species dominate the species diversity pattern and should be protected first.
ECOLOGICAL INFORMATICS
(2023)
Review
Ecology
Kate M. Buckeridge, Courtney Creamer, Jeanette Whitaker
Summary: Looking at the necromass continuum, three conclusions are drawn for future research. Firstly, controls on necromass persistence become clearer when viewed through the continuum's lens; secondly, destabilization is the least understood stage with recycling also insufficiently evidenced in many ecosystems; and thirdly, the response of necromass process rates to climate change remains unresolved for most continuum stages and ecosystems.
FUNCTIONAL ECOLOGY
(2022)
Article
Soil Science
Baorong Wang, Shaoshan An, Chao Liang, Yang Liu, Yakov Kuzyakov
Summary: Microbial necromass contributes significantly to SOC sequestration, with higher contributions in grassland and forest soils compared to cropland soils. Fungal necromass has a larger contribution to SOC than bacterial necromass, with the ratio of fungal:bacterial necromass increasing from croplands to forests. Additionally, factors such as temperature and soil pH affect the accumulation of fungal and bacterial necromass in different ecosystems.
SOIL BIOLOGY & BIOCHEMISTRY
(2021)
Article
Soil Science
Yu Luo, Mouliang Xiao, Hongzhao Yuan, Chao Liang, Zhenke Zhu, Jianming Xu, Yakov Kuzyakov, Jinshui Wu, Tida Ge, Caixian Tang
Summary: This study investigated the contribution of microbial necromass to soil organic carbon (SOC) formation via rhizodeposition in paddy fields, revealing the significance of fungal necromass in carbon sequestration, especially under elevated CO2 and no nitrogen fertilization. Fungal necromass was found to play a crucial role in the immobilization of rhizodeposits and their transformation into mineral-associated SOC fractions, highlighting the importance of the pathways from rhizodeposits through fungal necromass and organo-mineral associations for the buildup of SOC in paddy fields.
SOIL BIOLOGY & BIOCHEMISTRY
(2021)
Article
Forestry
Han Yang, Peipei Zhang, Qitong Wang, Shaojun Deng, Xi He, Xinjun Zhang, Ruihong Wang, Qiuhong Feng, Huajun Yin
Summary: Root exudation rates decrease with increasing elevation in alpine coniferous forests and are positively correlated with mean air temperature. The relationships with soil moisture and nitrogen availability are not significant. Air temperature affects root exudation directly and indirectly through its effects on fine root morphology and biomass.
Article
Environmental Sciences
Jianliang Liu, Wei Zhan, Xinya Huang, Di Tang, Shaofei Jin, Dan Zhu, Huai Chen
Summary: Soil carbon sequestration is important for mitigating climate change. Nitrogen deposition affects soil carbon dynamics by altering carbon input and output. This study investigated the impact of nitrogen addition on soil carbon stocks and identified the mechanisms in an alpine meadow. After six years of nitrogen addition, the total carbon stocks in the topsoil significantly increased, with microbial biomass carbon content playing a key role. Nitrogen addition also affected aboveground biomass and organic matter decomposition.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Peng Tian, Xuechao Zhao, Shengen Liu, Qinggui Wang, Wei Zhang, Peng Guo, Bahar S. Razavi, Chao Liang, Qingkui Wang
Summary: Based on our investigation of seven forest sites in eastern China, we found that N deposition has significant impacts on microbial necromass accumulation in the soil. High N deposition promotes fungal necromass accumulation while low N deposition hinders bacterial necromass accumulation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Giacomo Ferretti, Giulio Galamini, Evi Deltedesco, Markus Gorfer, Jennifer Fritz, Barbara Faccini, Axel Mentler, Sophie Zechmeister-Boltenstern, Massimo Coltorti, Katharina Maria Keiblinger
Summary: The study found that natural chabazite had modest effects on nitrate production rates, while NH4+-enriched chabazite stimulated NH4+-N production and N2O-N emissions but reduced NO3--N production and the abundance of nirS-nosZ genes. DMPP efficiency in reducing nitrification rates depended on N addition but was not affected by the two types of zeolites tested.
APPLIED SCIENCES-BASEL
(2021)
Article
Soil Science
Rajasekaran Murugan, Parag Bhople, Ika Djukic, Franz Zehetner, Katharina Keiblinger, Michael Zimmermann, Sophie Zechmeister-Boltenstern, Rainer Georg Joergensen
Summary: The study showed that under different temperature treatments, the release of carbon dioxide from the soil varied, with bedrock properties having a greater impact on SOC release, enzyme activities, and microbial communities than elevation levels or vegetation types.
APPLIED SOIL ECOLOGY
(2021)
Article
Environmental Sciences
Maria Rechberger, Daniela Roberti, Avion Phillips, Franz Zehetner, Katharina M. Keiblinger, Ellen Kandeler, Martin H. Gerzabek
Summary: The behavior of trace metals, specifically cadmium, in volcanic soils can vary significantly, especially in areas where agriculture is causing anthropogenic contamination. Factors such as substrate age and climate elevation can influence the retention capacity of cadmium in soils, with older volcanic soils having a weaker sorption capacity. This can potentially lead to the transfer of cadmium into the food chain through soil microorganisms.
JOURNAL OF ENVIRONMENTAL QUALITY
(2021)
Article
Soil Science
Franz Zehetner, Heinke Jaeger, Katharina M. Keiblinger, Tamara C. Dinter, I. Nyoman Candra, Armin Bajraktarevic, Markus Puschenreiter, Martin H. Gerzabek
Summary: The study found that different volcanic lithologies can influence soil formation and nutrient supply, subsequently affecting ecosystem productivity. Results revealed significant differences in soil properties between basaltic lava and rhyolitic pumice sites, leading to variations in vegetation species and biomass.
Article
Environmental Sciences
Christoph Rosinger, Katharina M. Keiblinger, Johannes Rousk, Hans Sanden
Summary: Microbial stoichiometry is crucial in understanding nutrient limitations for soil microorganisms and their impact on biogeochemical processes. However, shifts in microbial stoichiometry upon nutrient addition are not reliable indicators of growth-limiting nutrients, suggesting that soil microorganisms have stoichiometric plasticity when exposed to resource pulses.
Article
Soil Science
Johannes Friedl, Evi Deltedesco, Katharina M. Keiblinger, Markus Gorfer, Daniele De Rosa, Clemens Scheer, Peter R. Grace, David W. Rowlings
Summary: This study examined the impact of irrigation frequency on N-2 and N2O emissions from an intensely managed pasture in the subtropics. The results showed that frequent, small amounts of irrigation led to similar losses of N-2 and N2O as a single, large irrigation event. After a heavy rainfall, the high-frequency treatment had smaller increases in N2O emissions compared to the low-frequency treatment, indicating a legacy effect. Cumulative losses of N2O and N-2 did not differ between treatments, but higher CO2 emissions were observed in the high-frequency treatment. The findings suggest that the increase in microbial activity and O-2 consumption from small and repeated wetting events can offset the effects of increased soil gas diffusivity on denitrification. The observed legacy effect may be attributed to increased mineralisation and dissolved organic carbon availability. Overall, increasing irrigation frequency can reduce the environmental impact of N2O, but not the overall magnitude of N2O and N-2 emissions.
BIOLOGY AND FERTILITY OF SOILS
(2022)
Article
Agronomy
Christoph Rosinger, Gernot Bodner, Luca Giuliano Bernardini, Sabine Huber, Axel Mentler, Orracha Sae-Tun, Bernhard Scharf, Philipp Steiner, Johannes Tintner-Olifiers, Katharina Keiblinger
Summary: Tackling the global carbon deficit through soil organic carbon sequestration in agricultural systems has been a recent focus. However, there is still a lack of comprehensive understanding of on-farm SOC sequestration potentials in order to derive effective strategies.
Article
Agronomy
Orracha Sae-Tun, Katharina M. Keiblinger, Christoph Rosinger, Axel Mentler, Herwig Mayer, Gernot Bodner
Summary: The study aims to assess the structure-related dissolved organic matter (DOM) patterns in conservation farming systems and investigate the underlying bio-chemical drivers. A novel method combining ultrasonication aggregate breakdown and continuous UV-Vis measurement was used to characterize DOM release from soil. The results showed significant differences in DOM release dynamics between land-use and agricultural management systems.
Article
Agronomy
Rizki Maftukhah, Rosana M. Kral, Axel Mentler, Ngadisih Ngadisih, Murtiningrum Murtiningrum, Katharina M. Keiblinger, Michael Gartner, Rebecca Hood-Nowotny
Summary: Mining negatively affects ecosystems and food security, but remediation practices can reduce the negative impacts on post-mining lands. This study aims to improve crop yields and drought resistance on a post-tin-mining site in Bangka Island, Indonesia, using locally available resources. Different soil amendments were tested and found to significantly improve cassava and centrosema yields and have positive effects on their growth environment.
Article
Environmental Sciences
Giulio Galamini, Giacomo Ferretti, Christoph Rosinger, Sabine Huber, Valeria Medoro, Axel Mentler, Eugenio Diaz-Pin, Markus Gorfer, Barbara Faccini, Katharina Maria Keiblinger
Summary: Recycling nutrients is important, and struvite and nitrogen enriched zeolite fertilizers from wastewater treatments are gaining attention in European markets. Their effects on agricultural soil, especially struvite, are uncertain. This study investigated their effects on acid sandy arable soil, evaluating N dynamics, potential losses, and effects on soil parameters compared to traditional fertilization. The results showed that struvite quickly solubilized due to soil acidity, stimulating nitrifying and denitrifying microorganisms. Zeolite amendments decreased NOx gas emissions and NH3 emissions, but high dosage increased NH3 emissions. The two zeolitic tuffs had contrasting effects on microbial biomass, with chabazite tuff having a positive effect and clinoptilolite tuff having a negative effect on microbial N. Overall, there is potential for struvite and zeolites to mitigate nutrient outfluxes, but recommendations based on soil type are important for best results.
Article
Multidisciplinary Sciences
Giacomo Certini, TaeOh Kwon, Bianca Rompato, Ika Djukic, Claudia Forte
Summary: We investigated the effect of different forest covers on carbon and nitrogen dynamics of two types of litter during decomposition in soil. The results showed that the carbon to nitrogen ratio of green tea remained unchanged, while the ratio of rooibos tea nearly halved after two years. Both litters progressively lost carbon, with rooibos tea losing about fifty percent of the initial content. In terms of nitrogen, green tea behaved similarly to carbon, while rooibos tea initially lost nitrogen but recovered by the end of the first year. Both litters showed preferential loss of carbohydrates and enrichment in lipids under beech.
Article
Environmental Studies
Rizki Maftukhah, Katharina M. Keiblinger, Ngadisih Ngadisih, Murtiningrum Murtiningrum, Rosana M. Kral, Axel Mentler, Rebecca Hood-Nowotny
Summary: This study investigated the effects of locally available organic soil amendments on nitrogen fixation and crop nitrogen uptake in post-tin-mining soils on Bangka Island. The results showed that the combined application of compost and charcoal significantly increased the quality of fixed nitrogen and the crop's nitrogen uptake. Therefore, locally available organic soil amendments, especially the combination of charcoal and compost, have great potential for improving nitrogen fixation in intercrop systems.
Editorial Material
Agronomy
Katharina Keiblinger, Florian Wichern, Wen-Feng Cong
Article
Soil Science
Sabine Huber, Luca Giuliano Bernardini, Alexandra Bennett, Julia Fohrafellner, Katharina Dohnke, Magdalena Bieber, Francesco Vuolo, Axel Mentler, Gernot Bodner, Katharina Keiblinger
Summary: In addition to standard laboratory testing, on-farm soil health monitoring methods are needed for farmers to assess progress in adopting new management practices. However, there is currently a lack of studies evaluating the suitability of semi-quantitative on-farm indicators to accurately rank target soil properties. This study assessed the validity, practicality, and cost-effectiveness of field-adapted approaches compared to common laboratory methods for determining soil organic carbon, carbon fractions, and microbial activity.
SOIL USE AND MANAGEMENT
(2023)
