生物炭及炭基肥对油麦菜生长及吸收重金属的影响.pdfVIP

中国环境科学 2016,36(10) ：3064~3070 China Environmental Science 生物炭及炭基肥对油麦菜生长及吸收重金属的影响 刘 冲 1,2,刘晓文 1*,吴文成 1,蔡信德 1,梁 啸 1,李云标 1,南忠仁 2 (1.环境保护部华南环境科学研究所,广东 广州 510655 ；2.兰州大学资源环境学院,西部环境教育部重点实验室,甘肃省环境污染预警与控制重点实验室,甘肃 兰州 730000) 摘要： 以水稻土和油麦菜为供试对象,通过盆栽试验研究了水稻秸秆生物炭和炭基肥对农田土壤物理化学性质,油麦菜生长及吸收 Cd, Cu, Pb 和 Zn 的影响.结果表明,稻杆炭及其炭基肥的施入可改善土壤理化性质,除铵态氮外各项指标均明显提高,油麦菜地上部生物量呈增加趋 势.油麦菜各部位 Cd, Cu, Pb 和 Zn 的含量均随处理水平呈递减趋势,且根系茎叶,其中,高剂量炭基肥处理降低效果最佳,油麦菜茎叶 Cd, Cu, Pb 和 Zn 最高可分别降低 34.78%、29.37% 、46.59%和 40.95%;油麦菜各部位对 Cd, Cu, Pb 和 Zn 的富集随处理水平呈递减趋势,而茎叶对 Cd, Cu 和 Zn 的转运系数呈增加趋势,稻秆炭及其炭基肥的施用均能显著减少油麦菜可食部位对 Cd, Cu, Pb 和 Zn 的吸收. 关键词：生物炭；改良；重金属；修复；固定 中图分类号：X53 文献标识码：A 文章编号：1000-6923(2016)10-3064-07 Effect of biochar and biochar based fertilizer on growth of Lactuca sativa L. and absorption of heavy metals. LIU Chong1,2 1* 1 1 1 1 2 , LIU Xiao-wen , WU Wen-cheng ,CAI Xin-de , LIANG Xiao , LI Yun-biao , NAN Zhong-ren (1.South China Institute of Environmental Science, Ministry of Environmental Protection, Guangzhou 510655,China ；2.Key Laboratory of Western Chinas Environmental System (Ministry of Education), Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China). China Environmental Science, 2016,36(10)：3064~3070 Abstract ：A pot experiment was conducted out for paddy soil and lettuce to study the effects of amendment of biochar and biochar based fertilizer on growth of lettuce and absorption of heavy metals. The results indicated that rice straw biochar and biochar based fertilizer could promote the growth of lettuce and improved soil physical and chemical properties + except NH4 -N. Heavy metals content of various parts of lettuc