Article
Biodiversity Conservation
Chonghua Xu, Xia Xu, Chenghui Ju, Han Y. H. Chen, Brian J. Wilsey, Yiqi Luo, Wei Fan
Summary: The study found that nitrogen addition significantly increased global SOC content, with the increase amplified over time in both organic and mineral soil layers. The increase mainly resulted from enhanced plant carbon input to soils coupled with reduced carbon loss from decomposition.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Environmental Sciences
Menghan Wang, Fucui Li, Lili Dong, Xiang Wang, Liebao Han, Jurgen E. Olesen
Summary: Increases in nitrogen deposition have the potential to impact the organic carbon cycle in soil. The effects of nitrogen addition on soil organic carbon pools are inconsistent, highlighting the need for quantifying the response of organic carbon pool distribution to nitrogen addition. Furthermore, the influence of adding a mixture of organic and inorganic nitrogen on organic carbon pool distribution and stabilization in grassland soil remains unclear.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Forestry
Xiankai Lu, Qinggong Mao, Zhuohang Wang, Taiki Mori, Jiangming Mo, Fanglong Su, Zongqing Pang
Summary: Anthropogenic elevated nitrogen deposition accelerates terrestrial nitrogen cycles and influences soil carbon dynamics. Long-term high nitrogen deposition in tropical forests decreases soil carbon mineralization rates, primarily due to reduced microbial biomass and altered microbial functions caused by soil acidification and potential phosphorus limitation. Increased nitrogen deposition also leads to higher levels of soil dissolved organic carbon, with a negative relationship between microbial biomass and soil DOC, suggesting decreased microbial consumption of soil-soluble carbon pools. Overall, long-term nitrogen deposition can enhance soil carbon stability and benefit carbon sequestration in nitrogen-rich tropical forests.
Article
Soil Science
Daniel Plaza-Bonilla, Bruno Mary, Matthieu Vale, Eric Justes
Summary: The sensitivity of C and N mineralization to water potential in soil varies significantly between sites, and can be accurately predicted by specific soil properties. This suggests the potential for improving soil and soil-crop models to better predict water stress on C and N mineralization, particularly in the context of climate change.
Article
Biodiversity Conservation
Erxiong Zhu, Zhenjiao Cao, Juan Jia, Chengzhu Liu, Zhenhua Zhang, Hao Wang, Guohua Dai, Jin-Sheng He, Xiaojuan Feng
Summary: Subsoils globally contain more than 50% of soil organic carbon, yet their response to climate changes is under-investigated. A study on the Qinghai-Tibetan Plateau found that warming and drought treatments reduced organic carbon mineralization in subsoils, leading to decreased microbial activity and efficiency, while topsoils remained unaffected. This suggests that subsoil microbes may become inactive and inefficient under warming and drought conditions.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Soil Science
Mohammad Moonis, Jong-Kyu Lee, Hyojin Jin, Dong-Gill Kim, Ji-Hyung Park
Summary: The study found that soil moisture is the most important factor affecting soil heterotrophic respiration and temperature sensitivity. Warming and nitrogen addition can impact respiration and temperature sensitivity, while wetting treatment can reduce SIR and increase Q(10).
Article
Environmental Sciences
Lori VandenEnden, Mark A. Anthony, Serita D. Frey, Myrna J. Simpson
Summary: Forest soils, acting as a carbon sink, are greatly affected by global environmental changes such as increasing temperatures and nitrogen deposition. The molecular composition of soil organic matter is altered by warming and nitrogen addition, impacting the decomposition process. Results suggest that the effects of nitrogen addition and warming on soil organic matter are not simply additive but interact in complex ways.
Article
Environmental Sciences
Mbezele Junior Yannick Ngaba, Yves Uwiragiye, Roland Bol, Wim de Vries, Jinshi Jian, Jianbin Zhou
Summary: Anthropogenic activities have caused increased N deposition, precipitation, and temperature events in terrestrial ecosystems. This study analyzed 110 published studies and found that N addition significantly increased soil respiration in forests but decreased it in croplands and grasslands. Altered precipitation had significant impacts on soil respiration in forests and croplands, while the effects on grassland were insignificant. Warming stimulated soil respiration in forests but inhibited it in croplands.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Agronomy
Bowei Duan, An Yu, Hailin Zhang
Summary: Soil organic carbon (SOC) pools have the potential to achieve sustainable agriculture goals under climate change. The impact of different exogenous nutrient additions on SOC mineralization and stability was investigated through a laboratory-based experiment. The study revealed that high-rate fertilizer application significantly increased SOC mineralization at 25°C, while different fertilizer types had no significant impact at 15°C. Overall, fertilization increased total potential mineralizable carbon and decreased decomposition rate. The mixed application of organic and inorganic fertilizers was suggested to improve SOC stabilization and promote sustainable agricultural development.
Article
Forestry
Yi Wang, Shirong Liu, Junwei Luan, Chen Chen, Chunju Cai, Fan Zhou, Yaping Di, Xiaomin Gao
Summary: The study found that throughfall reduction led to a decrease in soil respiration, mainly due to a decline in fine roots biomass; N addition caused microbial carbon limitation, leading to a decrease in soil respiration. The negative effect of throughfall reduction on soil respiration was exacerbated by N addition through the interaction between the two factors.
Article
Soil Science
Matthew Leeford, Manpreet Singh Mavi, Daniel Liptzin, Steven J. Hall
Summary: This study examined the impact of different soil drying temperatures on water-extractable organic carbon (WEOC) and soil CO2 emissions after rewetting. The results showed that the drying temperature had a nonlinear effect on WEOC and CO2 emissions, and the response varied among soil samples and vegetation types. Therefore, soil health assessments conducted with different drying temperatures may not be directly comparable, and drying at lower temperatures may be preferable to avoid increasing carbon availability.
Article
Forestry
Yu-lin Zhu, Xue-ping Lin, Yun-peng Huang, Xing-hao Tang, Xiong Fang, Zhi-gang Yi
Summary: Nitrogen deposition increases soil respiration and carbon content, while severe drought decreases both. In a young subtropical forest, future frequent droughts may offset the promoting effects of nitrogen deposition on soil respiration and carbon sequestration.
Article
Soil Science
Junjun Wu, Hong Zhang, Yontai Pan, Xiaoli Cheng, Kerong Zhang, Guihua Liu
Summary: Soil organic carbon (SOC) consists of heterogeneous pools with different properties. This study explored the effects of nitrogen (N) addition on particulate organic carbon (POC) and mineral-associated organic carbon (MAOC) in SOC. The results showed that N addition significantly increased POC by 20.6% and decreased MAOC by 4.5%, leading to a higher proportion of POC in bulk SOC and a lower proportion of MAOC. The response of POC to N addition was negatively correlated with pH and microbial biomass carbon, while the response of MAOC was positively correlated with these factors.
SOIL & TILLAGE RESEARCH
(2023)
Article
Agronomy
Peng Qi, Ji Chen, Xiaojiao Wang, Renzhi Zhang, Liqun Cai, Yapeng Jiao, Zhiqiang Li, Guojun Han
Summary: Based on a meta-analysis of 50 studies on terrestrial ecosystems in China, this study investigated the responses of SOC, POC, and MAOC to N addition and the factors influencing POC and MAOC. The results showed that organic N addition significantly increased SOC, POC, and MAOC concentrations, while inorganic N addition only increased SOC and POC concentrations. POC and MAOC concentrations increased with fertilization duration, but the physical stability of SOC remained unchanged. The main factors affecting POC and MAOC were microbial biomass carbon (MBC) and soil pH, and the driving factors of POC and MAOC were different under inorganic and organic N additions.
Article
Geography, Physical
Paulina Pradel, Leon A. Bravo, Carolina Merino, Nicole Trefault, Rodrigo Rodriguez, Heike Knicker, Claudia Jara, Giovanni Larama, Francisco Matus
Summary: The impacts of rapid warming on soil organic matter decomposition in King George Island, Maritime Antarctic, remain unclear. Most vegetation cover is dominated by mosses, which contribute carbohydrates and C-alkyl but lack lignin for aromatic compounds and humus formation. The response of Antarctic microbial respiration to substrate and temperature increase is not yet understood.
PERMAFROST AND PERIGLACIAL PROCESSES
(2023)
Article
Agronomy
Benhua Sun, T. Overbury, D. W. Hopkins
Summary: The study found that soil nitrogen and phosphorus concentrations and organic decomposition rates were highest when pigs were present, while declining over subsequent courses. The overall production system was sustained by inputs of pig feed one year in four, with nutrients being carried over to subsequent years. Despite significant physical damage caused by pigs, the soil structure recovered over the following 2 years.
BIOLOGICAL AGRICULTURE & HORTICULTURE
(2022)
Article
Environmental Sciences
Giorgio Mannina, Luigi Badalucco, Lorenzo Barbara, Alida Cosenza, Daniele Di Trapani, Vito Armando Laudicina, Sofia Maria Muscarella, Dario Presti
Summary: The current exploitation of freshwater and the increase in sewage sludge production pose a critical challenge for sustainable development and the circular economy. There is a need to rethink the concept of wastewater treatment plants and shift towards water resource recovery facilities (WRRFs). This study aims to demonstrate the effectiveness of resource recovery systems through case studies, highlighting the importance of plant optimization in reducing greenhouse gas emissions from WRRFs.
Article
Agriculture, Dairy & Animal Science
Maryen Alberto Vazquez, Elaine Cristina Valino Cabrera, Livio Torta, Armando Laudicina, Maria Teresa Sardina, Giulia Mirabile
Summary: The potential of the microbial consortium Curvularia kusanoi L7-Trichoderma pleuroticola as a biological pretreatment for high fiber sources in animal production was evaluated. The consortium showed high cellulolytic and ligninolytic activity, and was more efficient in degrading the cell wall compared to the individual strains.
REVISTA MVZ CORDOBA
(2022)
Article
Biochemistry & Molecular Biology
Elena Piacenza, Simona Campora, Francesco Carfi Pavia, Delia Francesca Chillura Martino, Vito Armando Laudicina, Rosa Alduina, Raymond Joseph Turner, Davide Zannoni, Alessandro Presentato
Summary: The intense use and improper disposal of tellurium in industrial applications have led to its accumulation in the environment. This study fills the knowledge gap in microbial processing of tellurite and provides a suitable strategy for circular economy by exploring the microbial biotransformation of tellurium. The Micromonospora strain investigated in this study shows promising cell tolerance, adaptation, and response to tellurite, making it a valuable asset for biotechnological purposes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Review
Environmental Sciences
Caterina Lucia, Vito Armando Laudicina, Luigi Badalucco, Antonino Galati, Eristanna Palazzolo, Michele Torregrossa, Gaspare Viviani, Santo Fabio Corsino
Summary: This article introduces the characteristics of citrus wastewaters, the main regulations, and the main technologies for the management and utilization of CWWs. A method for the recovery of chemicals through biorefinery and their direct use for crop irrigation or treated for irrigation is proposed. The importance of promoting common and specific legislation for CWWs reuse is emphasized.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Enrique Albert-Belda, M. Belen Hinojosa, Vito Armando Laudicina, Jose M. Moreno
Summary: Fire frequency in fire-dominated ecosystems may increase due to global warming, land-use change, and human pressures. This study examines the effects of changes in fire frequency and other fire history characteristics on soil C and N dynamics and microbial groups in Pinus pinaster forests in central Spain. The results show clear differences between unburned and burned stands, with the time elapsed since the last fire being the most important factor governing soil nutrient dynamics and microbial groups. Recovery to pre-fire values takes 30-40 years, and increased wildfire frequency only affects total C and nitrification rate inconsistently. The time interval between the last two fires is not a significant factor. The results suggest the strong recovery capacity of this ecosystem even under increased fire frequency.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Applied
Sofia Maria Muscarella, Vito Armando Laudicina, Beatriz Cano, Luigi Badalucco, Pellegrino Conte, Giorgio Mannina
Summary: The study evaluated the physical-chemical properties of NH4+ adsorption from aqueous solution by two zeolitic mixtures, one treated with NaCl and one untreated. The zeolitic mixture richer in mordenite and with high specific surface area adsorbed more NH4+ than the one richer in clinoptilolite and heulandite with a lower specific surface area. NaCl treatment increased the amount of NH4+ adsorbed by the zeolitic mixtures. The results suggest that modulation of NaCl treatment of zeolitic mixtures can be applied to obtain new materials for water remediation from NH4+ contamination.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Agronomy
Eliseo Roma, Vito Armando Laudicina, Mariangela Vallone, Pietro Catania
Summary: The growing of olive trees and the consumption of extra virgin olive oil have significantly increased in recent decades. Precision agriculture is being used in olive orchards to manage agronomic variability and optimize fertilizer application. This study developed a GIS-based methodology using GEOBIA algorithms to create prescription maps for variable rate nitrogen fertilizer application in olive orchards. The methodology incorporated nitrogen balance, soil and leaf variability, biometric and spectral conditions of individual trees, and georeferencing using real-time kinematic RTK positioning correction. The obtained prescription map enabled a 31% reduction in nitrogen fertilizer application compared to the standard dose.
Article
Soil Science
Sara Paliaga, Vito Armando Laudicina, Luigi Badalucco
Summary: This study compared the classical chloroform fumigation-incubation (CFI) and fumigation-extraction (CFE) methods with a physical method based on N-2 or CO2 high pressurization (N2HP or CO2HP) for microbial cell lysis in two different soils. The results showed that CO2HP was more efficient than the CFE method for causing microbial cell lysis, and the CO2 pressure value and duration were important factors for increasing extractable organic C. However, CO2HP may have caused the release of non-living organic C.
BIOLOGY AND FERTILITY OF SOILS
(2023)
Article
Environmental Sciences
Jinfeng Wang, He Zhang, Jun Cai, Jia Li, Benhua Sun, Fuyong Wu
Summary: Different carbon substrates have different effects on the degradation of PAHs and microbial community structures in contaminated soil. Corn straw and glucose application can enhance the degradation of PAHs and change the fractions of PAHs in contaminated soil. The conversion of PAHs to more easily utilisable forms by microorganisms is facilitated by the carbon substrates.
ENVIRONMENTAL POLLUTION
(2023)
Article
Agronomy
Caterina Lucia, Daniela Pampinella, Eristanna Palazzolo, Luigi Badalucco, Vito Armando Laudicina
Summary: The study aimed to assess the effect of citrus sewage sludges (CSSs) on soil fertility and lettuce performance. Results showed that amendment with CSSs increased total organic C and available P in soil, as well as had a positive impact on soil microorganisms. Additionally, lettuce biomass production was increased after CSSs application.
Article
Agronomy
Sara Paliaga, Caterina Lucia, Daniela Pampinella, Sofia Maria Muscarella, Luigi Badalucco, Eristanna Palazzolo, Vito Armando Laudicina
Summary: Weed control in urban and peri-urban orange orchards is challenging due to restrictions. Mulching with black plastic geotextile fabric is an alternative to tillage and herbicides. This study assessed the impact of long-term soil mulching on soil fertility, microbial community, and orange yield. Mulching increased soil organic C, cation exchange capacity, microbial biomass C, and promoted the establishment of a more efficient microbial community. The use of black plastic geotextile fabric improved soil fertility and increased orange yield.
Review
Microbiology
Don Cowan, S. Craig Cary, Jocelyne Diruggiero, Frank Eckardt, Belinda Ferrari, David Hopkins, Pedro Lebre, Gillian Maggs-Koelling, Stephen Pointing, Jean-Baptiste Ramond, Dana Tribbia, Kimberley Warren-Rhodes
Summary: Water availability is crucial for microbial community structure and function in desert soils. Recent studies have shown that many microorganisms in desert soils retain metabolic functionality even under severely dry conditions. This suggests that there are other sources of water that sustain microbial functionality, including precipitation, condensation, and obscure sources such as hydrated minerals and groundwater-derived water vapor. Understanding the sources of bioavailable water in desert soils is important for studying microbial survival and function, especially in the context of global climate change.
Editorial Material
Agronomy
Vito Armando Laudicina, Paolo Ruisi, Luigi Badalucco
Article
Agriculture, Dairy & Animal Science
Massimo Todaro, Maria Luisa Scatassa, Riccardo Gannuscio, Irene Vazzana, Isabella Mancuso, Giuseppe Maniaci, Armando Laudicina
Summary: This study investigated the variations in immunoglobulin G (IgG) content, composition, mineral content, and fatty acid composition in the colostrum of Valle del Belice ewes, and evaluated the effect of lambing season. Results showed that the IgG content and Brix mean values were 40.35 g/L and 21.02%, respectively. The lambing season significantly influenced pH and somatic cell count, with higher values in winter. Palmitic, oleic, myristic, and stearic acids were the most common fatty acids in summer and winter seasons. Winter season increased the values of polyunsaturated fatty acids. Additionally, lambing season determined different mineral composition levels in colostrum, particularly copper and manganese.
ITALIAN JOURNAL OF ANIMAL SCIENCE
(2023)