文献类型： 外文期刊
作者： Lv, Guifen 1 ; Yang, Tao 2 ; Chen, Yuanhua 2 ; Hou, Hongqian 2 ; Liu, Xiumei 2 ; Li, Jianguo 2 ; Wei, Lingen 2 ; Li, Jin- 1 ;
作者机构： 1.Nanchang Hangkong Univ, Key Lab Jiangxi Prov Persistent Pollutants Contro, Nanchang 330063, Jiangxi, Peoples R China
2.Jiangxi Acad Agr Sci, Inst Soil Fertilizer & Resource Environm, Nanchang 330200, Jiangxi, Peoples R China
3.Henan Normal Univ, Sch Chem & Chem Engn, Xinxiang 475004, Henan, Peoples R China
关键词： Cadmium pollution; Bioavailability; Soil remediation; Paddy Rice
期刊名称：ECOLOGICAL ENGINEERING （ 影响因子：4.035； 五年影响因子：4.611 ）
ISSN： 0925-8574
年卷期： 2021 年 171 卷
页码：
收录情况： SCI
摘要： Cadmium (Cd) contamination poses a serious problem in paddy soils because of its high health risk through soilfood chain transfer. To evaluate the effect of biochar-based fertilizer on Cd uptake, soil and rice quality, biochar amendment at rates from 0 to 15 t/hm(2) was conducted in Cd polluted paddy soils. For successive two rice seasons, biochar treatments greatly reduced rice Cd and soil bioavailable Cd content. Furthermore, the concentration of bioavailable Cd decreased accordingly with the increase of biochar content. When soil properties, such as pH and soil organic carbon (SOC) were significantly improved, grow indexes of rice, especially for the late rice, would be partly improved. Most of the bioavailable Cd was immobilized in root, only a small partition of Cd was transferred to brown rice. The main stage for Cd accumulation was from heading stage to harvest stage.
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