en en en en en en en en en en en en en en en en en it en en en en en en en en en en en es en zh en en en en en en en en en en en en en en en en en en en en en mt en en en en nl de sv fr en en en en
About the Journal In Memory of Professor Jerzy Radecki Editorial Office Editorial Board Scope Impact Factor Indexed in... Journal Impact Factor contributing items Contact Subscription Current issue Online first Notes to Authors Frequently Asked Questions Submission Archive
Leaching of Heavy Metals from Rice Fields with Different Irrigation Management
Junzeng Xu1,2, Qi Wei2, Yanmei Yu2, Shizhang Peng1, Shihong Yang1,2
1State Key Laboratory of Hydrology–Water Resources and Hydraulic Engineering,
2College of Water Conservancy and Hydropower Engineering,
Hohai University, Nanjing 210098, China
Pol. J. Environ. Stud. 2014;23(6):2279–2286
To reveal the impact of irrigation management on the release and leaching of soil metals (Cu, Zn, Pb, Cr, and Cd), deep percolation rate and metals contents in soil solutions were observed in rice fields with nonflooding controlled irrigation (NFI) and flooding irrigation (FI) treatments. The contents of Cu and Cr in the deep solutions were safe according to the environmental quality standard for groundwater, but contents of other metals might lead to groundwater contamination, especially for Cd. The release of metals in surface soil was increased for NFI because the wetting-drying cycles in NFI fields resulted in less reluctant and high decomposition and mineralization of soil organic matter in surface soil, and consequently enhanced the release of soil metals into solutions. Seasonal metals leaching losses in NFI fields were 44.9-53.8% lower than in FI, due to the large reduction in both deep seepage rates and metals concentrations in deep soil solutions. Higher release of metals in NFI surface soils might lead to higher bioavailability of micronutrients (Cu and Zn) to crops, but higher risks in toxic metals (Pb, Cr, and Cd) uptakes.
Effect on Physiological Growth and Water Utilization of Rice under Different Varieties and Irrigation Modes
Study and Risk Assessment of Heavy Metals and Risk Element Pollution in Shallow Soil in Shanxi Province, China
Fuzzy Comprehensive Evaluation (FCE) and Toxic Risk Index (TRI) Analysis of the Heavy Metals in Sediments of Hongfeng Reservoir, Southwest China
The Potential of Wheat Straw Fibre in Treatment of Heavy Metal-Contaminated Soil: Mechanical Properties Research
Differences in the Risk Assessment of Dustfall Heavy Metals between Industrial and Non-Industrial Areas in China
© 2006-2022 Journal hosting platform by Bentus
We process personal data collected when visiting the website. The function of obtaining information about users and their behavior is carried out by voluntarily entered information in forms and saving cookies in end devices. Data, including cookies, are used to provide services, improve the user experience and to analyze the traffic in accordance with the Privacy policy. Data are also collected and processed by Google Analytics tool (more).
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.