Yu Luo

Yu Luo
Zhejiang University | ZJU · Institute of Environmental Science and Technology

PhD

About

99
Publications
45,216
Reads
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3,241
Citations
Additional affiliations
May 2014 - present
Zhejiang University
Position
  • Professor (Associate)
September 2009 - September 2011
Rothamsted Research
Position
  • PhD Student
September 2002 - July 2012
China Agricultural University
Position
  • PhD Student

Publications

Publications (99)
Article
Goethite is known to contribute to the co-precipitation of rhizodeposits and thus benefit carbon (C) sequestration, while arbuscular mycorrhizal fungi (AMF) play significant role in soil organic C (SOC), however, the combined effect is less known. To address this paucity in knowledge, we compared the physicochemical stabilization and microbial mine...
Article
Diversity and community composition of soil microorganisms along the elevation climosequences have been widely studied, while the microbial metabolic potential, particularly in regard to carbon (C) cycling, remains unclear. Here, a metagenomic analysis of C related genes along five elevations ranging from 767 to 4190 m at Mount Kilimanjaro was anal...
Article
Rice rhizodeposition plays an important role in carbon sequestration in paddy soils. However, the pathways through which rice rhizodeposits contribute to soil organic C (SOC) formation are poorly understood because of specific paddy soil conditions. Furthermore, microbial necromass has been largely ignored in studies examining the contribution of r...
Article
Lime and biochar have been proposed as effective ameliorants for increasing soil fertility and nitrogen (N) cycling by regulating the ammonia-oxidizer community. However, the biological mechanisms of lime- and biochar-induced changes in the ammonia-oxidizer community, soil nitrification, crop productivity, and N use efficiency (NUE) remain largely...
Article
Paddies contain 78% higher organic carbon (C) stocks than adjacent upland soils, and iron (Fe) plaque formation on rice roots is one of the mechanisms that traps C. The process sequence, extent and global relevance of this C stabilization mechanism under oxic/anoxic conditions remains unclear. We quantified and localized the contribution of Fe plaq...
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Full-text available
Identifying the core taxa involved in the utilization of plant straw or/and rhizodeposits is key to understanding the microbial mechanisms underlying the turnover of these plant-derived organic matters, known as the “brown” path and “green” path, respectively. However, this still remains a challenge, primarily due to methodological limitations. By...
Article
The conversion of natural forests to plantations can lead to a substantial loss of soil organic carbon (SOC) and threaten the function of soil microbial communities. However, the effect of forest conversion on the relationship between SOC dynamics and shifts in the composition and function of the microbial community remain poorly understood, althou...
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Biochar affects soil carbon (C) dynamics via shifting microbial community, but the active bacteria that regulate the rhizosphere-based C cycling remain to be identified. Here, a continuous 13CO2 labeling pot (Zea mays L.) experiment over 14 days, combined with RNA-based stable isotope probing (RNA-SIP), were used to characterize the active bacteria...
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Amendment of soil with biochar induces a shift in microbial community structure and promotes faster mineralization of soil organic carbon (SOC), thus offsetting C sequestration effects. Whether biochar induces losses of labile or persistent SOC pools remains largely unknown, and the responsible decomposers await identification. Towards addressing t...
Article
Soil nutrient supply and resistance to pathogen invasion are critical to crop yield during agricultural production. Crop production is often hampered by co-occurring nutrient and pathogen stresses, but the relationship between soil nutrient status and disease suppression remains unclear. Here, we conducted a meta-analysis based on 406 observations...
Article
Root exudate metabolites are a key medium for the interaction between plants and soil microbiota. L-theanine is a unique non-protein amino acid critical for the flavor and potential health benefits of tea products; however, its biological function in tea plants is not well understood. As L-theanine is mainly synthesized in the roots of tea plants,...
Article
Calcisols pose some unique challenges, particularly relating to their low organic carbon (C) content and low C storage ceiling. To address this, we investigated the role of iron (Fe) oxyhydroxides – goethite and ferrihydrite (0.36, 0.72, 3.6, and 7.2 g kg⁻¹ soil) in the presence of a labile C substrate (glucose) to simulate rhizodeposition, on C-cy...
Article
The role of soil decomposer animals in nutrient cycling is commonly seen as indirect, slow and cumulative, through grazing and engineering effects on soil microbes and their mineralization activities. Here, we show that nitrogen (N) and carbon (C) movement from living soil animals to plants and herbivores can be extremely rapid. In two complementar...
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Purpose Elevated CO2 contributes greatly to global warming, playing a pivotal role in terrestrial ecosystem processes, in particular microbially regulated C and N cycling. However, the responses of microbial C and N anabolic and metabolic processes to elevated CO2 are unclear. Methods This study used a meta-analysis based on a global dataset (i.e....
Article
Microplastics (MPs) can alter microbial communities and carbon (C) cycling in agricultural soils. However, the mechanism by which MPs affect the decomposition of microbe-driven soil organic matter remains unknown. We investigated the bacterial community succession and temporal turnover during soil organic matter decomposition in MP-amended paddy so...
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Both soil organic (SOC) and inorganic carbon (SIC) are important carbon reservoirs involved in global carbon cycle. Fertilization especially organic amendments can increase SOC sequestration, while nitrogen fertilization‐induced soil acidification leads to significant SIC loss in alkline soil. How fertilization change SIC and SOC via altering abiot...
Article
Dryland soils consistently exhibit a low capacity for the long‐term accumulation and storage of organic matter, which has been primarily attributed to low plant biomass inputs under drought suppression. Whether, and how, soil organic matter (SOM) compositions contribute to the consistently low SOM storage have been puzzling. A fundamental understan...
Article
Fertilization is a common practice to increase forest productivity; however, the responses of soil respiration (RS) components to the application of inorganic and organic fertilizers and the associated mechanisms are not clear in subtropical forest ecosystems. In this field trial conducted within an intensively-managed Moso bamboo (Phyllostachys ed...
Article
Inputs of decomposable organic materials into soil alter the decomposition of soil organic matter, a process generally called soil priming effect. Organic C inputs in terrestrial ecosystems are commonly from various sources (e.g. rhizodeposits, plant residues) simultaneously, but their interactions as well as mutual effects on SOM decomposition are...
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We synthesized 20 years of research to explain the interrelated processes that determine soil and plant responses to biochar. Biochar properties and its effects within agricultural ecosystems largely depend on feedstock and pyrolysis conditions. We describe three stages of reactions of biochar in soil: dissolution (1‐3 weeks); reactive surface deve...
Article
Carbon (C) additions to soil interact through chemical and microbiological processes to cause changes in soil phosphorus (P) availability. However, the response of soil P transformations and relevant microbial communities to C additions having different degrees of recalcitrance remains uncertain. We studied the effects of glucose, hemicellulose and...
Article
Wildfire plays an important role in restructuring bacterial and protist taxonomic and functional communities in forest ecosystems. Yet, the recovery of bacterial and protist communities following wildfire has not been rigorously investigated across long-term wildfire chronosequences. We compared changes in bacterial and protist alpha diversity, com...
Article
Paddy soils, a type of Hydragric Anthrosol, have much greater soil organic C (SOC) and total N (TN) contents than that in upland soils. However, this fact has never been generalized or mechanistically explained. We conducted a global meta-analysis on the organic C and total N contents and their stocks in continuous paddy soils (578 sites) and compa...
Article
Wildfire has profound and pervasive consequences for forest ecosystems via directly altering soil physicochemical properties and modulating microbial community. In this study, we examined the changes in soil properties and microbial community composition and structure at different periods after highly severe wildfire events (44 plots, 113 samples)...
Article
Full-text available
PurposeThe study aimed to determine the interactive effect of temperature with nutrients on maize residues decomposition in soil.Materials and methodsWe conducted an incubation of 87 days by applying maize straw (δ13C value of −11.2‰) to soil (δ13C value of −26.3‰) with low (N0), medium (NM), and high (NH) level of nutrients addition, at two temper...
Article
Despite fresh and pyrogenic organic matter have been widely used as amendments to improve soil organic carbon (SOC) storage, mineralization that links to C quality and soil temperature, microbial community composition and enzyme activity remain poorly understood. This study aims to explore the effects of amendments (bamboo leaves and its biochar) a...
Article
While there is a sound understanding of the range of mechanisms by which biochar can contribute to the mitigation of soil N2O emissions, a paucity of information remains on the efficacy and mechanisms associated with biochar-based fertilizer (BF). The present 12-month field trial aimed to: (1) investigate the responses of the seasonal variations in...
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Full-text available
Background and aimsIncorporation of biochar into the soil sequesters C for millennia, but the concomitant effects on plant rhizodepositions and nutrient (e.g., nitrogen; N) trade-offs via interactions of heterotrophic microbiota, might offset this sequestration.Methods Ryegrass (Lolium perenne L.) with and without biochar amendment were pulse label...
Article
Iron (Fe) oxides regulate soil organic carbon (C) content via balancing C processes of stabilization and mineralization. However, abiotic and biotic mechanisms are involved in stabilization (e.g., by adsorption and/or co-precipitation) and decomposition (e.g., by shifting the microbial community) of paddy soil rich in iron oxides remains poorly und...
Article
Rare studies investigated influence of neonicotinoid insecticides on the whole soil biota including non-target invertebrates and microorganisms. And less is known about the consequent intervention on soil C processes. This study aimed to decipher Collembola-fungi-bacteria interactive effects on pathways of maize C translocation, combining isotopic...
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Ryegrass was pulse-labeled with enriched ¹³CO2 for 18 h, followed by dynamic photosynthetic-carbon (¹³C) quantification in the plant (shoot, root), soil aggregates (three size classes), and microbial phospholipids fatty acids (PLFA-SIP) in soil amended with or without 700 °C-pyrolyzed biochar. We observed that biochar led to no difference of ¹³C al...
Article
A link between microbial life history and soil organic carbon storage in agroecosystems is presumed, but largely unexplored at the gene level. We aimed to elucidate whether and how differential organic material amendments (manure versus peat-vermiculite) affect, relative to a sole chemical fertilizer treatment, the link between microbial life histo...
Article
Wildfires decrease forest aboveground biomass and have long-term legacy effects on carbon (C) stocks in soil via alterations of microbial communities and functions. However, the interactions between soil organic C (SOC) chemodiversity and bacterial communities that drive C decomposition remain unclear. Soils from two boreal forest sites, 3 months (...
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Interactions and feedbacks between aboveground and belowground biomes are fundamental in controlling ecosystem functions and stability. However, the relationship between plant diversity and soil microbial diversity is elusive. Moreover, it remains unknown whether plant diversity loss will deteriorate the stability of soil microbial communities. To...
Article
Loss of biodiversity is considered to be detrimental to ecosystem function but a mechanistic understanding, and theoretical support, of this process in soil is lacking. Our previous studies found that reductive dechlorination of organochlorine pollutants is usually accompanied by methanogenesis in flooded paddy soil. Here, taking a typical organoch...
Article
Pollution induces pressure to soil microorganism; and conversely, the degradation of pollutants is reported largely regulated by the soil microbiome assembly in situ. However, the specific-dependent core taxa of degraders were barely confirmed, which is not conducive to improving the soil remediation strategy. Taking pollution of a typical organoch...
Article
The association of soil organic matter (SOM) with iron (Fe) oxides by adsorption and/or co-precipitation contributes to long term C stabilization in soil. While there is an understanding of the relationship between soil carbon (C) and the biogeochemical cycling of Fe, a lack of information exists on the role of Fe oxides on the accumulation of C in...
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Full-text available
Stoichiometric control of input substrate (glucose) and native soil organic C (SOC) mineralization was assessed by performing a manipulation experiment based on N or P fertilization in paddy soil. Glucose mineralization increased with nutrient addition up to 11.6% with combined N and P application compared with that without nutrient addition. Durin...
Article
Fu brick tea is a typical post-fermentation tea known for its special flavor and health benefits. Liquid chromatography-mass spectrometry, and sensory evaluation with multivariate analysis were used to characterize the dynamic changes in metabolite profile and taste characteristics. Seventy-one compounds were identified as critical metabolites, cat...
Article
Natural wildfires have a great effect on soil N transformation in subtropical forest. The pyrogenic organic matter (PyOM) in forest soils is mainly derived from the plant material burnt during forest fires, which affects soil N composition, N mineralization and nitrification. This study examined the effects of typical fresh plant material (leaves a...
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Full-text available
Assessment of soil health requires complex evaluation of properties and functions responsible for a broad range of ecosystem services. Numerous soil quality indices (SQI) have been suggested for the evaluation of specific groups ofsoil functions, but comparison ofvarious SQI is impossible because they are based on a combination of specific soil pro...
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Degraded farmlands have been abandoned worldwide, especially in high- and middle-income countries. These lands help combat climate change as they undergo natural recovery of vegetation and soil carbon and remove carbon dioxide from the atmosphere. However, recovery can be slow, requiring decades to centuries to approach pre-cultivation or natural s...
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The effect of grazing on the abundance, composition, and methane (CH 4) uptake of methanotrophs in grasslands has been well documented in the past few decades, but the dominant communities of active methanotrophs responsible for CH 4 oxidation activity in grazed soils are still poorly understood. In this study, we characterized the metabolically ac...
Article
Cover crops have been implemented for decades as sustainable agricultural soil management practice. However, knowledge about the temporal and spatial variation in soil nutrients and the succession of microorganisms during soil restoration under cover crops maintained for a different number of years are still poorly understood. Here, using the 16S a...
Article
In soils, cysteine and methionine represent the predominant constituents of the low molecular weight organic S, but their role in plant nutrition and soil S cycling is unclear. Cysteine and methionine uptake by pot-cultivated wheat and oilseed rape and their cycling were evaluated using ¹⁴C and ³⁵S labelling. About 0.16%–0.30% of ¹⁴C from cysteine...
Article
The biochar-induced priming effects (PEs) were investigated by applying maize straw (C4) derived biochar to eight C3 soils, with a gradient of pH and a sub-gradient of soil organic carbon (SOC). To decipher the physicochemical and microbial mechanisms, we adopted C-isotopic analysis, high-throughput sequencing and multivariate statistical analyses...
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Full-text available
Microbial elevational diversity patterns have been extensively studied, but their shaping mechanisms remain to be explored. Here, we examined soil bacterial and fungal diversity and community compositions across a 3.4 km elevational gradient (consists of 5 elevations) on Mt. Kilimanjaro located in East Africa. Bacteria and fungi had different diver...
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Root-associated compartments, including rhizosphere soil, rhizoplane soil, and the endosphere, are found to harbor distinguished bacterial populations and community composition, but how microbiome in these rhizo-compartments are affected by edaphic variables remains largely unknown. Goethite is a prevalent crystalline iron (hydr)oxide mineral of th...
Article
Aroma is one of the most important criteria of tea quality, but the dynamic changes of aroma profile during the manufacturing process, and the chemical basis of characteristic aroma in Fu brick tea remain largely unknown. In this study, a total of 72 volatiles were identified and quantified, only the esters content increased sharply during the proc...
Article
The study aimed to investigate how mulching practices can improve soil quality by altering microbial community composition and the interrelations among its members. The experiment was conducted for 7 years (from 2012 to 2018) in an apple (Malus domestica cv. Fuji) orchard located on the Loess Plateau, China. Four treatments were applied: convention...
Article
Microbial activities are the dynamic core in the soil nutrient cycle. To improve the knowledges about the responses of soil microbial community structure and potential function to long-term cover crops practice. The co-occurrence patterns of soil microbial community structure and functional genes were evaluated using 16SrRNA, ITS and metagenomic te...
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Full-text available
Background and aims Rhizodeposited-carbon (C) plays an important role in regulating soil C concentrations and turnover, however, the distribution of rhizodeposited-C into different soil organic carbon (SOC) pools and how regulated by nitrogen (N) fertilization still remains elusive. Methods We applied five N fertilization rates (0, 10, 20, 40, and...
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Full-text available
Following publication of the original article [1], the authors reported an error in the Additional file 1.
Article
Biochar application has been shown to be effective in mitigating soil N 2 O emission in agricultural soils. However, the effect of biochar on soil N 2 O emission in subtropical plantations and the underlining mechanisms are poorly understood. The objective of this study was to investigate the effect of biochar application rates (0, 5 and 15 t ha ⁻¹...
Article
To better understand the effects of bacteria on the characteristics of Fu brick tea, we investigated bacterial community structure as well as the predicted functions of identified bacteria and their correlations with chemical compounds during the manufacturing process. Overall, Klebsiella species dominated during the initial stage of processing, bu...
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Full-text available
Background: Biochar amendments have been widely proposed as a conventional and efficient strategy to promote soil organic carbon (SOC) sequestration via negative priming. Unfortunately, the extent and biological mechanisms responsible for biochar-induced negative priming are still not fully understood. Despite traditional explanations focused on th...
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Full-text available
Aims The mean biomass ATP concentration in aerobic soils is around 10–11 μmol ATP g⁻¹ biomass C, within a fairly narrow range. It is much lower in short-term incubated laboratory waterlogged soils. However, the biomass ATP concentration in waterlogged paddy soils under field conditions remains unknown. This is investigated. Methods Soil microbial...