Ecological restoration of an acidic Cd contaminated soil using bamboo biochar application

被引:173
作者
Mohamed, Ibrahim [1 ,2 ,3 ]
Zhang, Guo-shi [3 ]
Li, Zhi-guo [3 ]
Liu, Yi [3 ]
Chen, Fang [1 ,3 ]
Dai, Ke [4 ]
机构
[1] Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Hubei Province, Peoples R China
[2] Benha Univ, Fac Agr, Dept Soil Sci, Toukh 13736, Kalyoubia, Egypt
[3] Int Plant Nutr Inst, China Program, Wuhan 430074, Peoples R China
[4] Huazhong Agr Univ, Coll Resources & Environm, Key Lab Arable Land Conservat Middle & Lower Reac, Minist Agr, Wuhan 430070, Peoples R China
关键词
Bamboo biochar; Cd; Phytoavailability; Fractionation; Plant growth; HEAVY-METALS; ORGANIC-MATTER; RICE STRAW; CADMIUM; IMMOBILIZATION; LEAD; BIOAVAILABILITY; REMEDIATION; AMENDMENTS; ZN;
D O I
10.1016/j.ecoleng.2015.07.009
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Biochar is an organic amendment with good effects on soil properties but its influence on Cd fractionation and growth of vegetable crops (e.g. Chinese cabbage) and field crops (e.g. maize) is still restricted. A pot experiment was conducted to investigate the effect of biochar derived from bamboo residues (pyrolyzed at temperature of 400 degrees C) at four levels (0%, 0.5%, 1% and 1.5%) on Cd solubility and bioavailability, and plant growth in a loamy soil artificially contaminated with Cd at three rates (0, 5 and 50 mg kg(-1)). The soil was strongly acidic (pH = 4.63) with low organic carbon content (1.064 g kg(-1)). Chinese cabbage and maize were used as indicator plants in this investigation. Addition of babmboo biochar significantly increased soil pH, electrical conductivity (EC), organic carbon (SOC), and cation exchange capacity (CEC). Concentrations of Cd in CaCl2 and DTPA extractions decreased due to the increase of biochar rates but there were no alterations noticed in total concentrations of Cd in the soil. The acid soluble/exchangeable Cd decreased by 3.35-3.88 times, but the reducible and oxidizable fractions of Cd increased by 1.95-1.96 times and 1.91-2.14 times, respectively, after harvesting cabbage and maize plants in the presence of 1.5% biochar. Changes of soil properties, especially pH could be used as a good reason to illustrate the immobilization of Cd in biochar treated soils. The increase of biochar rates from 0% to 1.5% enhanced the growth of cabbage by 64.23%, 47.31% and 34.93%, and maize by 50.78%, 32.83% and 29.68% in soils treated with Cd at 0, 5 and 50 mg kg(-1), respectively. Using biochar at a dose of 1.5% diminished concentrations of Cd in cabbage shoots by 4.71-2.29 times and in maize shoots by 5.17-2.68 times, respectively. Our results suggested that bamboo biochar had positive residual effects on maize after the harvest of cabbage. Finally, bamboo biochar, especially at its highest rate (1.5%) could be recommended as a safe amendment in the immobilization of Cd in contaminated agricultural soils and then reduced its threat on the food chain and human health. (C) 2015 Published by Elsevier B.V.
引用
收藏
页码:67 / 76
页数:10
相关论文
共 54 条
[1]  
Adriano D. C., 1986, Trace elements in the terrestrial environment.
[2]   Role of assisted natural remediation in environmental cleanup [J].
Adriano, DC ;
Wenzel, WW ;
Vangronsveld, J ;
Bolan, NS .
GEODERMA, 2004, 122 (2-4) :121-142
[3]  
[Anonymous], 2009, Biochar for Environmental Management: Science and Technology
[4]   The art, science, and technology of charcoal production [J].
Antal, MJ ;
Gronli, M .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2003, 42 (08) :1619-1640
[5]   Evaluation of Small Arms Range Soils for Metal Contamination and Lead Bioavailability [J].
Bannon, Desmond I. ;
Drexler, John W. ;
Fent, Genevieve M. ;
Casteel, Stan W. ;
Hunter, Penelope J. ;
Brattin, William J. ;
Major, Michael A. .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2009, 43 (24) :9071-9076
[6]   A review of biochars' potential role in the remediation, revegetation and restoration of contaminated soils [J].
Beesley, Luke ;
Moreno-Jimenez, Eduardo ;
Gomez-Eyles, Jose L. ;
Harris, Eva ;
Robinson, Brett ;
Sizmur, Tom .
ENVIRONMENTAL POLLUTION, 2011, 159 (12) :3269-3282
[7]   The immobilisation and retention of soluble arsenic, cadmium and zinc by biochar [J].
Beesley, Luke ;
Marmiroli, Marta .
ENVIRONMENTAL POLLUTION, 2011, 159 (02) :474-480
[8]   A three-year experiment confirms continuous immobilization of cadmium and lead in contaminated paddy field with biochar amendment [J].
Bian, Rongjun ;
Joseph, Stephen ;
Cui, Liqiang ;
Pan, Genxing ;
Li, Lianqing ;
Liu, Xiaoyu ;
Zhang, Afeng ;
Rutlidge, Helen ;
Wong, Singwei ;
Chia, Chee ;
Marjo, Chris ;
Gong, Bin ;
Munroe, Paul ;
Donne, Scott .
JOURNAL OF HAZARDOUS MATERIALS, 2014, 272 :121-128
[9]   Role of inorganic and organic soil amendments on immobilisation and phytoavailability of heavy metals: a review involving specific case studies [J].
Bolan, NS ;
Duraisamy, VP .
AUSTRALIAN JOURNAL OF SOIL RESEARCH, 2003, 41 (03) :533-555
[10]   Immobilization and phytoavailability of cadmium in variable charge soils. II. Effect of lime addition [J].
Bolan, NS ;
Adriano, DC ;
Mani, PA ;
Duraisamy, A .
PLANT AND SOIL, 2003, 251 (02) :187-198