Journal ArticleDOI
Mechanisms of biochar-mediated alleviation of toxicity of trace elements in plants: a critical review.
Muhammad Rizwan,Shafaqat Ali,Muhammad Farooq Qayyum,Muhammad Ibrahim,Muhammad Zia-ur-Rehman,Tahir Abbas,Yong Sik Ok +6 more
TLDR
This review highlights the potential for improving plant resistance to TE(s) stress by BC application and provides a theoretical basis for application of BC in TE (s) contaminated soils worldwide.Abstract:Â
Trace elements (TEs) contamination is one of the main abiotic stresses which limit plant growth and deteriorate the food quality by their entry into food chain. In recent, biochar (BC) soil amendment has been widely reported for the reduction of TE(s) uptake and toxicity in plants. This review summarizes the role of BC in enhancing TE(s) tolerance in plants. Under TE(s) stress, BC application increased plant growth, biomass, photosynthetic pigments, grain yield, and quality. The key mechanisms evoked are immobilization of TE(s) in the soil, increase in soil pH, alteration of TE(s) redox state in the soil, and improvement in soil physical and biological properties under TE(s) stress. However, these mechanisms vary with plant species, genotypes, growth conditions, duration of stress imposed, BC type, and preparation methods. This review highlights the potential for improving plant resistance to TE(s) stress by BC application and provides a theoretical basis for application of BC in TE(s) contaminated soils worldwide.read more
Citations
More filters
Journal ArticleDOI
Preparation, modification and environmental application of biochar: A review
Jianlong Wang,Shizong Wang +1 more
TL;DR: In this paper, a review of the preparation, characterization, modification, and especially environmental application of biochar, based on more than 200 papers published in recent 10 year, to provide an overview of Biochar with a particular on its environmental application.
Journal ArticleDOI
Heavy metals in food crops: Health risks, fate, mechanisms, and management
TL;DR: This review focuses on and describes heavy metal contamination in soil-food crop subsystems with respect to human health risks, and explores the possible geographical pathways of heavy metals in such subsystems.
Journal ArticleDOI
Microbial and Plant-Assisted Bioremediation of Heavy Metal Polluted Environments: A Review
TL;DR: The toxic effects of heavy metal pollution and the mechanisms used by microbes and plants for environmental remediation are discussed and the importance of modern biotechnological techniques and approaches in improving the ability of microbial enzymes to effectively degrade heavy metals at a faster rate is emphasized.
Journal ArticleDOI
Effect of bamboo and rice straw biochars on the mobility and redistribution of heavy metals (Cd, Cu, Pb and Zn) in contaminated soil.
Kouping Lu,Xing Yang,Gerty Gielen,Nanthi Bolan,Yong Sik Ok,Nabeel Khan Niazi,Song Xu,Guodong Yuan,Xin Chen,Xiaokai Zhang,Dan Liu,Zhaoliang Song,Xingyuan Liu,Hailong Wang +13 more
TL;DR: The results demonstrated that the rice straw biochar can effectively immobilize heavy metals, thereby reducing their mobility and bioavailability in contaminated soils.
Journal ArticleDOI
Cadmium stress in rice: toxic effects, tolerance mechanisms, and management: a critical review.
Muhammad Rizwan,Shafaqat Ali,Muhammad Adrees,Hina Rizvi,Muhammad Zia-ur-Rehman,Fakhir Hannan,Muhammad Farooq Qayyum,Farhan Hafeez,Yong Sik Ok +8 more
TL;DR: In this paper, the toxic effects, tolerance mechanisms, and management of Cadmium in a rice paddy are reviewed, and several strategies have been proposed for the management of Cd-contaminated paddy soils.
References
More filters
Book
Trace elements in soils and plants
TL;DR: The Biosphere The Anthroposphere Soils and Soil Processes Weathering Processes Pedogenic Processes Soil Constituents Trace Elements Minerals Organic Matter Organisms in Soils Trace Elements in Plants.
Journal ArticleDOI
Heavy metals, occurrence and toxicity for plants: a review
TL;DR: In this article, the range of heavy metals, their occurrence and toxicity for plants, and their effects on the ecosystem is discussed, where the authors focus mainly on zinc, cadmium, copper, mercury, chromium, lead, arsenic, cobalt, nickel, manganese and iron.
Journal ArticleDOI
Heavy Metals in Contaminated Soils: A Review of Sources, Chemistry, Risks and Best Available Strategies for Remediation
TL;DR: The principles, advantages and disadvantages of immobilization, soil washing and phytoremediation techniques which are frequently listed among the best demonstrated available technologies for cleaning up heavy metal contaminated sites are presented.
Book
Trace Elements in Terrestrial Environments: Biogeochemistry, Bioavailability, and Risks of Metals
TL;DR: In this article, biogeochemical processes are used to regulate metal behavior and regulate the bioavailability of trace metals, and risk assessment and management in metal-contaminated sites.
BookDOI
Biochar for Environmental Management: Science and Technology
Johannes Lehmann,Stephen Joseph +1 more
TL;DR: In this article, Flannery presented a Biochar Classification and Test Methods for determining the quantity of Biochar within Soils and its effect on Nutrient Transformations and Nutrient Leaching.