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Impact of coconut-fiber biochar on lead translocation, accumulation, and detoxification mechanisms in a soil-rice system under elevated lead stress.
Zhang, Jingmin; Li, Jianhong; Lin, Qinghuo; Huang, Yanyan; Chen, Dongliang; Ma, Haiyang; Zhao, Qingjie; Luo, Wei; Nawaz, Mohsin; Jeyakumar, Paramsothy; Trakal, Lukas; Wang, Hailong.
Afiliación
  • Zhang J; School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China; Danzhou Soil Environment of Rubber Plantation, Hainan Observation and Research Station, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan 571737, China.
  • Li J; Danzhou Soil Environment of Rubber Plantation, Hainan Observation and Research Station, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan 571737, China.
  • Lin Q; Danzhou Soil Environment of Rubber Plantation, Hainan Observation and Research Station, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan 571737, China.
  • Huang Y; Danzhou Soil Environment of Rubber Plantation, Hainan Observation and Research Station, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan 571737, China.
  • Chen D; Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China.
  • Ma H; Key Laboratory of Tropical Crops Nutrition of Hainan Province/ South Subtropical Crops Research Institute, Chinese Academy of Tropical Agricultural Sciences (CATAS), Zhanjiang, Guangdong 524091, China.
  • Zhao Q; School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China.
  • Luo W; Danzhou Soil Environment of Rubber Plantation, Hainan Observation and Research Station, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan 571737, China. Electronic address: rkylw@163.com.
  • Nawaz M; Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China.
  • Jeyakumar P; Environmental Sciences, School of Agriculture & Environment, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand.
  • Trakal L; Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Suchdol, 165 00 Prague 6, Czech Republic.
  • Wang H; School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong 528000, China; Guangdong Provincial Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, Gua
J Hazard Mater ; 469: 133903, 2024 May 05.
Article en En | MEDLINE | ID: mdl-38430601
ABSTRACT
Biochar, an environmentally friendly material, was found to passivate lead (Pb) in contaminated soil effectively. This study utilized spectroscopic investigations and partial least squares path modeling (PLS-PM) analysis to examine the impact of coconut-fiber biochar (CFB) on the translocation, accumulation, and detoxification mechanisms of Pb in soil-rice systems. The results demonstrated a significant decrease (p < 0.05) in bioavailable Pb concentration in paddy soils with CFB amendment, as well as reduced Pb concentrations in rice roots, shoots, and brown rice. Synchrotron-based micro X-ray fluorescence analyses revealed that CFB application inhibited the migration of Pb to the rhizospheric soil region, leading to reduced Pb uptake by rice roots. Additionally, the CFB treatment decreased Pb concentrations in the cellular protoplasm of both roots and shoots, and enhanced the activity of antioxidant enzymes in rice plants, improving their Pb stress tolerance. PLS-PM analyses quantified the effects of CFB on the accumulation and detoxification pathways of Pb in the soil-rice system. Understanding how biochar influences the immobilization and detoxification of Pb in soil-rice systems could provide valuable insights for strategically using biochar to address hazardous elements in complex agricultural settings.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oryza / Contaminantes del Suelo Idioma: En Revista: J Hazard Mater Asunto de la revista: SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oryza / Contaminantes del Suelo Idioma: En Revista: J Hazard Mater Asunto de la revista: SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos