Article
Biotechnology & Applied Microbiology
Yunli Jiang, Xiangjun Wang, Yaming Zhao, Changai Zhang, Zewen Jin, Shengdao Shan, Lifeng Ping
Summary: The addition of swine-manure biochar can enhance soil microbial biomass carbon and nitrogen contents, as well as enzyme activities in tea garden soil. Under different conditions, the use of 2% swine-manure biochar pyrolyzed at 350 degrees Celsius showed the best effects.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Environmental Sciences
Min Nie, Chihhung Wu, Yanni Tang, Guangyu Shi, Xu Wang, Chengxiao Hu, Jun Cao, Xiaohu Zhao
Summary: Heavy metal compound contaminated soil, which often contains copper (Cu), cadmium (Cd), and chromium (Cr), poses a significant ecological threat. However, the application of phytoremediation in heavy metal combined contamination is limited. In this study, the researchers explored the use of exogenous selenium (Se) and Bacillus proteolyticus SES to enhance the remediation of combined Cu-Cd-Cr contaminated soil by ryegrass. The results showed that the addition of Se alone or in combination with B. proteolyticus SES significantly increased the removal rates of heavy metals in the rhizosphere soil and improved the tolerance of ryegrass to heavy metals, while also promoting the growth of specific beneficial microbes in the rhizosphere.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
Ergang Wen, Xing Yang, Hanbo Chen, Sabry M. Shaheen, Binoy Sarkar, Song Xu, Hocheol Song, Yong Liang, Jorg Rinklebe, Deyi Hou, Yong Li, Fengchang Wu, Michael Pohorely, Jonathan W. C. Wong, Hailong Wang
Summary: The study found that FeBC effectively reduced the bioavailability of As and Pb in paddy soils, while RawBC was more suitable for reducing the bioavailability of Cd. In addition, FeBC treatment not only increased rice yield, but also had a certain impact on soil enzyme activity.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Green & Sustainable Science & Technology
Yang Wei, Risheng Li, Nan Lu, Baoqiang Zhang
Summary: Mercury (Hg) and arsenic (As) are toxic heavy metals that are frequently found in excessive concentrations in Chinese soils. This study focused on the use of biochar made from different crop straws to remediate co-contaminated soil and reduce heavy metal bioavailability. The results showed that rice straw biochar (RIB) was the most effective in improving soil properties, such as pH, organic matter content, and cation exchange capacity, and enhancing enzyme activities. All biochars significantly reduced heavy metal bioavailability in soil and bioconcentration in plants. RIB was identified as the optimal biochar amendment for stabilizing soil co-contaminated with Hg and As.
Article
Engineering, Environmental
Yuxin Guo, Yuanyuan Lu, Kamel Mohamed Eltohamy, Chunlong Liu, Yunying Fang, Yajing Guan, Boyi Liu, Jiao Yang, Xinqiang Liang
Summary: This study evaluated the contribution of different-sized biogas slurry-derived colloids to plant available P uptake and phosphatase response. The results indicated that the addition of nanosized colloids can increase the bioavailability of colloidal P and plant biomass.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Qiang Li, Qian Wu, Ting Zhang, Peng Xiang, Zhijie Bao, Wenying Tu, Lijiao Li, Qiangfeng Wang
Summary: Phosphate mining has a significant impact on the diversity and community structure of rhizosphere soil fungi, leading to an increase in the relative abundance of certain fungi. Two efficient phosphate solubilizers were identified from the isolated fungi, which also exhibited tolerance to multiple heavy metals. This study contributes to our understanding of how phosphate mining affects rhizosphere fungal ecology and provides important resources for the remediation of phosphate mining soil pollution.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Physical
Jolanta Sobik-Szoltysek, Katarzyna Wystalska, Krystyna Malinska, Erik Meers
Summary: The study found that different pyrolysis temperatures affect the sorption properties of poultry-manure-derived biochar. Biochar produced at 575 degrees Celsius showed good adsorption efficiency for Zn, Cd, and Pb, and was not affected by competing metal ions.
Article
Environmental Sciences
Yong Zhou, Huankai Li, Wenwei Guo, Hui Liu, Minggang Cai
Summary: This study examined the changes in macronutrients and micronutrients, microbial communities, and enzymatic activity during pig manure composting and vermicomposting processes. The results showed that vermicomposting significantly increased macronutrient concentrations and decreased organic carbon and C/N ratio compared to composting. The addition of earthworms also enhanced microbial populations and stabilized micronutrients in the vermicomposting products. Overall, vermicomposting is an eco-friendly management technology for processing pig manure and can improve fertility properties and biological activities.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Wengang Zuo, Shengjie Wang, Yuxi Zhou, Shuai Ma, Weiqin Yin, Yuhua Shan, Xiaozhi Wang
Summary: This study investigated the fate of Cd in different soil conditions treated with wheat straw biochar and its driving mechanisms. The addition of biochar facilitated Cd immobilization and reduced Cd uptake by green vegetables in various soils. However, in acidic soil, the release of exchangeable aluminum from biochar led to increased leaching of Cd. The remediation performance of biochar for Cd-contaminated soils is conditional and more effective in neutral and saline-alkali soils.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Soil Science
Qifeng Wu, Ruiyuan Lian, Meixia Bai, Jianping Bao, Yang Liu, Songhao Li, Chenfei Liang, Hua Qin, Junhui Chen, Qiufang Xu
Summary: The study showed that the co-application of biochar with organic amendments can mitigate soil carbon loss by decreasing soil microbial activities.
BIOLOGY AND FERTILITY OF SOILS
(2021)
Article
Environmental Sciences
Yi-min Wang, Qing Liu, Ming Li, Xu-yin Yuan, Minori Uchimiya, Shao-wei Wang, Zhi-yuan Zhang, Tao Ji, Ying Wang, Yu-yan Zhao
Summary: Metal bioavailability, especially in the context of biochar amendment, influences its behavior in the soil-plant system. This study compared two methods for analyzing cadmium (Cd) bioavailability in Chinese soils, finding that biochar reduced bioavailable Cd levels in soil and decreased Cd accumulation in lettuce roots and leaves. Soil pore-water Cd was identified as the best predictor for Cd accumulation in lettuce, with transfer factor values indicating lower Cd movement from roots to leaves. Soil properties and pore-water Cd together were found to contribute significantly to root enzyme activities.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Environmental Sciences
Felipe Hipolito Dos Santos, Matheus Bortolanza Soares, Luis Reynaldo Ferracciu Alleoni
Summary: Nano zero-valent iron (nZVI) is one of the most studied nanomaterials for environmental remediation in the past 20 years. However, there have been few studies on the combination of nZVI with other materials, such as biochar, for enhanced soil remediation. This study found that the combination of nZVI and wood sawdust biochar (nZVI-BC) was more effective in immobilizing arsenic, lead, and zinc compared to pristine nZVI.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Huimin Zhou, Xiaoying Li, Chang Li, Lisi He, Xiaoqing Liu, Zheng Xiao, Xiaobo Sun, Gaoling Shi, Jiale Su, Junhui Chen
Summary: The research showed that biochar produced at low temperature can promote azalea growth and improve soil quality by increasing nutrient content and microbial activity in the rhizosphere soil.
Article
Environmental Sciences
Jie Wang, Jiaqiang Liu, Jiayi Zhou, Luo Chang, Zhenguo Shen, Liang Shi, Yahua Chen
Summary: This study investigated the effect of rhizosphere processes on the characteristics and heavy metal immobilization of biochar. The results showed that the physicochemical properties of biochar changed significantly after aging in the wheat rhizosphere, leading to increased adsorption capacity for Cd2+ and Pb2+. However, the rhizosphere process weakened the immobilization effect of biochar on heavy metals in contaminated soils.
WATER AIR AND SOIL POLLUTION
(2022)
Article
Environmental Sciences
Sajjad Hazrati, Mohsen Farahbakhsh, Artemi Cerda, Ghasem Heydarpoor
Summary: This study successfully enhanced the physicochemical characteristics and environmental applicability of sludge-derived biochar by combining ultrasound pre-treatment and chemical functionalization. The results showed that the application of UFB significantly decreased the availability of heavy metals in soil and improved soil enzyme activities.
Article
Environmental Sciences
Hongyan Huang, Jinsong Chen, Shibin Liu, Shengyan Pu
Summary: The study found that nano-ZnO has a significant detoxification effect on Pb-contaminated soil and can improve the microbial diversity and richness in soil at certain concentrations. However, the addition of nano-ZnO also reduces the pH of the soil, leading to changes in some enzyme activities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Environmental Sciences
Shibin Liu, Fakun He, Yakov Kuzyakov, Huxuan Xiao, Duyen Thi Thu Hoang, Shengyan Pu, Bahar S. Razavi
Summary: Nutrient availability in the rhizosphere is influenced by various factors, and the higher microbial activities make nutrients more available in the rhizosphere compared to bulk soil. Nutrient accumulation is more pronounced in low-fertile soils.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Soil Science
Nataliya Bilyera, Christina Hummel, Gabrielle Daudin, Michael Santangeli, Xuechen Zhang, Jakob Santner, Eva Lippold, Steffen Schlueter, Isabelle Bertrand, Walter Wenzel, Sandra Spielvogel, Doris Vetterlein, Bahar S. Razavi, Eva Oburger
Summary: Understanding phosphorus dynamics in the rhizosphere is crucial for sustainable crop production. Soil texture has a larger impact on the extent and intensity of phosphorus solubilization processes than the presence of root hairs.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Andreas Breidenbach, Per-Marten Schleuss, Shibin Liu, Dominik Schneider, Michaela A. Dippold, Tilman de la Haye, Georg Miehe, Felix Heitkamp, Elke Seeber, Kyle Mason-Jones, Xingliang Xu, Yang Huanming, Jianchu Xu, Tsechoe Dorji, Matthias Gube, Helge Norf, Jutta Meier, Georg Guggenberger, Yakov Kuzyakov, Sandra Spielvogel
Summary: Soil degradation and microbial shifts in the Tibetan Kobresia pastures may irreversibly diminish the carbon sink function and accelerate nutrient losses.
NATURE COMMUNICATIONS
(2022)
Article
Biodiversity Conservation
Liang Wei, Zhenke Zhu, Bahar S. Razavi, Mouliang Xiao, Maxim Dorodnikov, Lichao Fan, Hongzhao Yuan, Andrey Yurtaev, Yu Luo, Weiguo Cheng, Yakov Kuzyakov, Jinshui Wu, Tida Ge
Summary: Paddies have higher organic carbon stocks than upland soils, and iron plaque on rice roots is a mechanism that traps carbon. This study quantified the contribution of iron plaque to organic matter stabilization in the rice rhizosphere and estimated its role in global carbon sequestration in paddy soils. The results showed that iron plaque formation increased the amount of carbon trapped, and this mechanism could potentially capture a significant amount of carbon globally each rice season.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Rong Jia, Jie Zhou, Juncong Chu, Muhammad Shahbaz, Yadong Yang, Davey L. Jones, Huadong Zang, Bahar S. Razavi, Zhaohai Zeng
Summary: The recycling of livestock manure has been shown to enhance soil quality and ecosystem multifunctionality, particularly in promoting C and P cycling. There is a positive correlation between soil quality index and ecosystem multifunctionality, while mineral fertilization did not have a significant effect on soil quality and enzyme activity.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Plant Sciences
Xuechen Zhang, Nataliya Bilyera, Lichao Fan, Patrick Duddek, Mutez A. Ahmed, Andrea Carminati, Anders Kaestner, Michaela A. Dippold, Sandra Spielvogel, Bahar S. Razavi
Summary: This study reveals the significant role of root hairs in shaping rhizosphere biochemical properties under drought conditions and maintaining plant nutrition. Soil water content is more important than root exudates for hydrolytic enzyme activities under water and carbon colimitation.
Article
Soil Science
Duyen Thi Thu Hoang, Mehdi Rashtbari, Luu The Anh, Shang Wang, Dang Thanh Tu, Nguyen Viet Hiep, Bahar S. Razavi
Summary: This study found that AMF symbiosis enhances glucose exudation and enzyme activity, thereby increasing the resistance of rhizosphere microorganisms to drought stress.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
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
Agronomy
Seyed Sajjad Hosseini, Amir Lakzian, Bahar S. Razavi
Summary: The adaptation of plants and microbes to drought stress can affect enzyme activities in the rhizosphere. However, the spatial distribution and catalytic properties of enzymes in the rhizosphere under drought adaptation are largely unknown. This study investigated the spatial pattern of enzyme activities in wheat roots and found that drought decreased the hotspot percentage of certain enzyme activities. The rhizosphere extent and total enzyme activities were higher in optimum moisture compared to drought treatment. Drought also affected the catalytic efficiency of enzymes. Overall, this study highlights the importance of understanding the impact of drought on enzyme activities in the rhizosphere.
Article
Forestry
Meisam Nazari, Johanna Pausch, Samuel Bickel, Nataliya Bilyera, Mehdi Rashtbari, Bahar S. Razavi, Kazem Zamanian, Amin Sharififar, Lingling Shi, Michaela A. Dippold, Mohsen Zarebanadkouki
Summary: This study investigated the impact of thinning-derived deadwood logs on soil chemical and microbial properties in a managed spruce forest in Bavaria, Germany. The results showed that deadwood increased soil organic carbon content and modified soil biochemical processes, indicating its potential for soil and forest sustainability as well as carbon sequestration.
EUROPEAN JOURNAL OF FOREST RESEARCH
(2023)
Article
Soil Science
Shang Wang, Xuechen Zhang, Jie Zhou, Zhuo Xu, Qianhan Ma, Juncong Chu, Huadong Zang, Yadong Yang, Leanne Peixoto, Zhaohai Zeng, Bahar S. Razavi
Summary: Our study found that localized straw incorporation created a hotspot of enzyme activity in the soil (detritusphere) and enhanced enzyme activities in the rhizosphere and soil profile. These findings demonstrate the significant impact of straw treatment on soil enzyme activities and plant performance.
APPLIED SOIL ECOLOGY
(2023)
Article
Soil Science
Bin Song, Siyi Shang, Feng M. Cai, Zihao Liu, Jie Fang, Na li, Jonathan M. Adams, Bahar S. Razavi
Summary: Microplastics (MPs) can potentially harm microbes and plant root cells, and their influence on soil microbiomes in flooded environments such as rice paddies is unknown. In a mesocosm experiment, the effects of biodegradable and conventional MPs on rice growth, exoenzyme kinetics, and microbial communities were compared using zymography and high-throughput sequencing. Both types of MPs significantly inhibited rice growth, possibly by affecting nutrition. The addition of MPs increased enzymatic activity and bacterial biomass, but decreased diversity in soil ecosystems.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Plant Sciences
Yadollah Taghizadeh, Reza Amirnia, Esmaeil Rezaei-Chiyaneh, Mahdi Ghiyasi, Bahar S. S. Razavi, Kadambot H. M. Siddique
Summary: Implementing intercropping systems with biofertilizer applications is a sustainable strategy for improving the quantity and quality of plant products. This study found that using a biofertilizer application in the 2S:4 KB intercropping ratio resulted in the highest soil microbial and enzyme activities. Additionally, applying biofertilizer to the monocrops produced higher seed yields for sesame and kidney bean. The 2S:2 KB and 4S:2 KB intercropping ratios with biofertilizer application were identified as environmentally-friendly solutions for improving sesame oil quantity and quality.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)
Review
Plant Sciences
Babar Hussain, Shibin Liu, Shafeeq Ur Rahman, Santos Triunfo Leiva-Espinoza, Khadija Javed, Shengyan Pu, Muhammad Farooq
Summary: Cadmium is a carcinogenic element with no significant role in plant growth. Accumulated cadmium in plants can enter the food chain and pose human health risks. Recent research has focused on reducing cadmium uptake and accumulation in cacao beans. Various approaches such as biochar, organic amendments, and inorganic amendments have been proposed to immobilize cadmium in soil and alleviate its toxic effects. The selection of low cadmium-accumulating genotypes may also be a promising strategy to decrease cadmium contents in cacao beans.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)