四川环境2017，Vol.36Issue(2)：17-21,5.
生物炭对干旱区盐碱土磷淋溶的影响
Effect of Biochar on Phosphorus Leaching from Saline Soil in Arid Area
摘要
Abstract
By applying biochar made of corn stover in the saline soil collected in Kashgar oasis,Xinjiang autonomous region,we measured the concentrations of available phosphorus and total phosphorus in the leachate of the soil at different precipitation amount in the laboratory.The biochar was mixed thoroughly with the soil at 0％,1％,5％ and 10％ (w/w) ratio and transferred individually into plastic columns.Deionized water was applied on the top of the soil columns imitating natural precipitation on event basis and the leachate was collected regularly.Results showed that the leaching of available phosphorus was increased by 610％ and 630％ at the treatments 5％ and 10％,respectively;the leaching of total phosphorus was increased by 432％ and 438％ at the treatments 5％ and 10％,respectively.Our study indicate that biochar application (5％ is a suitable addition rate)in the saline soil in arid areas can significantly improve the availability of phosphorus,thus enhance phosphorus use efficiency.关键词
生物炭/玉米秸秆/盐碱土/有效磷/总磷Key words
Biochar/corn stover/saline soil/available phosphorus/total phosphorus分类
资源环境引用本文复制引用
王承俊,杨放,邢英,李心清..生物炭对干旱区盐碱土磷淋溶的影响[J].四川环境,2017,36(2):17-21,5.基金项目
中国科学院战略性科技先导专项(XDA05070400) （XDA05070400）
贵州省科学技术基金(黔科合J字[2013]2218号) （黔科合J字[2013]2218号）
贵州省农业攻关计划项目(黔科合NY字[2011]3079号) （黔科合NY字[2011]3079号）
中科院院地合作和科技支疆项目 （）
国家重大科学研究计划(2013CB956700-2) （2013CB956700-2）
贵州省国际科技合作计划项目(黔科合外G字[2012]7050号) （黔科合外G字[2012]7050号）
中国科学院“西部之光”人才培养计划“西部博士资助项目”. （）
