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| 1 | Response of microbial communities to biochar-amended soils:a critical review显示文摘Application of biochar to soils changes soil physicochemical properties and stimulates the activities of soil microorganisms that influence soil quality and plant performance.Studying the response of soil microbial communities to biochar amendments is important for better understanding interactions of biochar with soil,as well as plants.However,the effect of biochar on soil microorganisms has received less attention than its influences on soil physicochemical properties.In this review,the following key questions are discussed:(i)how does biochar affect soil microbial activities,in particular soil carbon(C)mineralization,nutrient cycling,and enzyme activities?(ii)how do microorganisms respond to biochar amendment in contaminated soils?and(iii)what is the role of biochar as a growth promoter for soil microorganisms?Many studies have demonstrated that biochar-soil application enhances the soil microbial biomass with substantial changes in microbial community composition.Biochar amendment changes microbial habitats,directly or indirectly affects microbial metabolic activities,and modifies the soil microbial community in terms of their diversity and abundance.However,chemical properties of biochar,(especially pH and nutrient content),and physical properties such as pore size,pore volume,and specific surface area play significant roles in determining the efficacy of biochar on microbial performance as biochar provides suitable habitats for microorgan-isms.The mode of action of biochar leading to stimulation of microbial activities is complex and is influenced by the nature of biochar as well as soil conditions. | Kumuduni Niroshika Palansooriya James Tsz Fung Wong Yohey Hashimoto Longbin Huang Jörg Rinklebe Scott X.Chang Nanthi Bolan Hailong Wang Yong Sik Ok | 2019 | Biochar2019，1，1： | 34 |
| 2 | Biochar and its importance on nutrient dynamics in soil and plant显示文摘Biochar,an environmentally friendly soil conditioner,is produced using several thermochemical processes.It has unique characteristics like high surface area,porosity,and surface charges.This paper reviews the fertilizer value of biochar,and its effects on soil properties,and nutrient use efficiency of crops.Biochar serves as an important source of plant nutrients,especially nitrogen in biochar produced from manures and wastes at low temperature(≤400℃).The phosphorus,potassium,and other nutrient contents are higher in manure/waste biochars than those in crop residues and woody biochars.The nutrient contents and pH of biochar are positively correlated with pyrolysis temperature,except for nitrogen content.Biochar improves the nutrient retention capacity of soil,which depends on porosity and surface charge of biochar.Biochar increases nitrogen retention in soil by reducing leaching and gaseous loss,and also increases phosphorus availability by decreasing the leaching process in soil.However,for potassium and other nutrients,biochar shows inconsistent(positive and negative)impacts on soil.After addition of biochar,porosity,aggregate stability,and amount of water held in soil increase and bulk density decreases.Mostly,biochar increases soil pH and,thus,influences nutrient availability for plants.Biochar also alters soil biological properties by increasing microbial populations,enzyme activity,soil respiration,and microbial biomass.Finally,nutrient use efficiency and nutrient uptake improve with the application of biochar to soil.Thus,biochar can be a potential nutrient reservoir for plants and a good amendment to improve soil properties. | Md Zahangir Hossain Md Mezbaul Bahar Binoy Sarkar Scott Wilfred Donne Young Sik Ok Kumuduni Niroshika Palansooriya Mary Beth Kirkham Saikat Chowdhury Nanthi Bolan | 2020 | Biochar2020，2，4： | 15 |
| 3 | Visualizing the emerging trends of biochar research and applications in 2019:a scientometric analysis and review显示文摘Biochar,derived from thermal pyrolysis of biomass,has been regarded as a low-cost,sustainable and beneficial material and widely applied in agriculture,environment and energy during the last two decades.To elucidate the research status timely and future trends in biochar field,CiteSpace is used to systematically analyze the related literature retrieved from the Web of Science core collection in 2019.Based on the keywords clustering analysis,it was found that“biochar production”,“organic pollutants removal”,“heavy metals immobilization”,“bioremediation”were the main hotspots in research covering biochar.“Bioremediation”is an emerging topic and deserves extensive attention due to its highly effective and environmentally friendly treatment of pollutants.Improving the phytoremediation effect,immobilizing functional microorganisms on biochar,and using microorganisms as raw materials to produce biochar were the common methods of biochar-assisted bioremediation.While studies focused on“soil quality and plant growth”and“biochar and global climate change”decreased,investigations concentrated in the toxicity of biochar to soil biota and ruminants are sustainably growing.Research on direct and catalytic thermal pyrolysis of green waste(mainly microalgae)for biofuels(bio-oil,biodiesel,syngas,etc.)and biochar production is increasing.Converting municipal wastes(e.g.,sewage sludge,fallen leaves)into biochar through pyrolysis was a suitable treatment for municipal waste and became a popular topic in recent time.Moreover,the biochar produced from these municipal wastes exhibited excellent performance in the removal of pollutants from wastewater and soil.This review may help to identify future directions in biochar research and applications. | Ping Wu Zeyu Wang Hailong Wang Nanthi S.Bolan Yujun Wang Wenfu Chen | 2020 | Biochar2020，2，2： | 14 |
| 4 | Remediation of heavy metal(loid)s contaminated soils – To mobilize or to immobilize?显示文摘 | Nanthi Bolan Anitha Kunhikrishnan Ramya Thangarajan Jurate Kumpiene Jinhee Park Tomoyuki Makino Mary Beth Kirkham Kirk Scheckel | 2013 | Journal of Hazardous Materials2013，，： | 3 |
| 5 | Isolation of phosphate solubilizing bacteria and their potential for lead immobilization in soil显示文摘 | Jin Hee Park Nanthi Bolan Mallavarapu Megharaj Ravi Naidu | 2010 | Journal of Hazardous Materials2010，，2： | 2 |
| 6 | Phytoremediation of Metal-Polluted Soils by Arbuscular Mycorrhizal Fungi显示文摘 | Sebastián Meier Fernando Borie Nanthi Bolan Pablo Cornejo | 2012 | Critical Reviews in Environmental Science and Technology2012，，7： | 2 |
| 7 | A critical review of biochar-based nitrogen fertilizers and their effects on crop production and the environment显示文摘Globally,nitrogen(N)fertilizer demand is expected to reach 112 million tonnes to support food production for about 8 billion people.However,more than half of the N fertilizer is lost to the environment with impacts on air,water and soil quality,and biodiversity.Importantly,N loss to the environment contributes to greenhouse gas emissions and climate change.Nevertheless,where N fertilizer application is limited,severe depletion of soil fertility has become a major constraint to sustainable agriculture.To address the issues of low fertilizer N use efficiency(NUE),biochar-based N fertilizers(BBNFs)have been developed to reduce off-site loss and maximize crop N uptake.These products are generally made through physical mixing of biochar and N fertilizer or via coating chemical N fertilizers such as prilled urea with biochar.This review aims to describe the manufacturing processes of BBNFs,and to critically assess the effects of the products on soil properties,crop yield and N loss pathways. | Yurong Gao Zheng Fang Lukas Van Zwieten Nanthi Bolan Da Dong Bert F.Quin Jun Meng Fangbai Li Fengchang Wu Hailong Wang Wenfu Chen | 2022 | Biochar2022，4，1： | 2 |
| 8 | Biochar suppressed the decomposition of organic carbon in a cultivated sandy loam soil: A negative priming effect显示文摘 | Weiwei Lu Weixin Ding Junhua Zhang Yi Li Jiafa Luo Nanthi Bolan Zubin Xie | 2014 | Soil Biology and Biochemistry2014，，： | 2 |
| 9 | Biochar reduces the bioavailability and phytotoxicity of heavy metals显示文摘 | Jin Hee Park Girish Kumar Choppala Nanthi Sirangie Bolan | 2011 | Plant Soil2011，348，： | 1 |
| 10 | Concomitant rock phosphate dissolution and lead immobilization by phosphate solubilizing bacteria ( Enterobacter sp.)显示文摘 | Jin Hee Park Nanthi Bolan Mallavarapu Megharaj Ravi Naidu | 2010 | Journal of Environmental Management2010，，4： | 1 |
| 11 | Isolation of phosphate solubilizing bacteria and their potential for lead immobilization in soil显示文摘 | Jin Hee Park Nanthi Bolan Mallavarapu Megharaj Ravi Naidu | 2010 | Journal of Hazardous Materials2010，，2： | 1 |
| 12 | Isolation of phosphate solubilizing bacteria and their potential for lead immobilization in soil显示文摘 | JIN H P NANTHI B MALLAVARAPU M | 2011 | Journal of Hazardous Materials2011，185，： | 1 |
| 13 | Biochar reduces the bioavailability and phytotoxicity of heavy metals显示文摘 | Jin H P Girish K C Nanthi S B | 2011 | Plant Soil2011，348，1： | 1 |
| 14 | Comparative value of phosphate sources on the immobilization of lead, and leaching of lead and phosphorus in lead contaminated soils显示文摘 | Jin Hee Park Nanthi Bolan Mallavarapu Megharaj Ravi Naidu | 2010 | Science of the Total Environment2010，，： | 1 |
| 15 | Relative Value of Phosphate Compounds in Reducing the Bioavailability and Toxicity of Lead in Contaminated Soils显示文摘 | Jin Hee Park Nanthi Bolan Mallavarapu Megharaj Ravi Naidu | 2012 | Water, Air, & Soil Pollution2012，，： | 1 |
| 16 | Soil acidification and liming interactions with nutrientand heavy metal transformationand bioavailability显示文摘 | Nanthi S Bolan Domy C Adriano Denis Curtin | 2003 | Advances in Agronomy2003，，： | 1 |
| 17 | Influence of soil chemistry and plant physiology in the phytoremediation of Cu,Mn,and Zncritical reviews in plant sciences Journal 显示文摘 | GIRISH C SAIFULLAH NANTHI B | 2014 | Critical Reviews in Plant Sciences2014，33，5： | 1 |
| 18 | Comparative value of phosphate sources on the immobilization of lead, and leaching of lead and phosphorus in lead contaminated soils显示文摘 | Jin Hee Park Nanthi Bolan Mallavarapu Megharaj Ravi Naidu | 2010 | Science of the Total Environment2010，，4： | 1 |
| 19 | Distribution and Bioavailability of Trace Elements in Livestock and Poultry Manure By-Products显示文摘 | Nanthi S. Bolan Domy C. Adriano Santiago Mahimairaja | 2004 | Critical Reviews in Environmental Science and Technology2004，，3： | 1 |
| 20 | Cadmium Contamination and Its Risk Management in Rice Ecosystems显示文摘 | Nanthi S. Bolan Tomoyuki Makino Anitha Kunhikrishnan Pil-Joo Kim Satoru Ishikawa Masaharu Murakami Ravi Naidu Mary B. Kirkham | 2013 | Advances in Agronomy2013，，： | 1 |
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