【作者】 李嘉竹； 王晓茜； 黄占斌； 陈威； 孙华杰； 黄震；

【Author】 LI Jia-zhu1,2,WANG Xiao-qian1,HUANG Zhan-bin1,2,CHEN Wei1,SUN Hua-jie1,HUANG Zhen1(1.School of Chemical & Environmental Engineering,China University of Mining & Technology-Beijing 100083,China;2.The State Key Laboratory of Loess Plateau Soil Erosion and Dry-land Farming,Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,Yangling 712100,China)

【机构】 中国矿业大学(北京)化学与环境工程学院； 中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室；

【摘要】 为了探索不同环境材料及其组合对土壤氮素的淋溶效应,促进氮肥保持与高效利用技术研发。本研究采用室内土柱模拟试验方法,对不同环境材料(高分子材料A、吸附材料E、有机营养材料F以及其组合AE、AF、AEF)在不同氮肥(硝态氮、铵态氮、尿素)下对土壤氮肥淋溶效果进行比较分析和研究。四次的淋溶结果表明,不同类型环境材料对土壤氮肥效应不同,各环境材料及其组合均能减少土壤中氮肥的淋失;在单种材料处理中,A能明显减小土壤施硝态氮的氮肥淋溶,F对土壤中施铵态氮的氮素的保持效果较好;A、E对土壤施入尿素的氮素保持效果较好;在复合处理中,复合材料AE可使土壤中硝态氮、铵态氮和尿素的林容量减小3%以上,说明该组合对各种形态氮肥的保持效果较好。更多还原

【Abstract】 In order to investigate the removal efficiency of nitrogen in soil by environmental materials,as well as promote the research and development of nitrogen utilization technology efficiently,the leaching effect of different environmental materials(polymer materials A,adsorbing materials E,Organic nutrition materials F and their combinations AE,AF and AEF) on the nitrogen in soil was carried out by soil column leaching,analyzing and comparing with different nitrogen fertilizer(Nitrate nitrogen,Ammonium nitrogen and Urea) applied in the test.The four times leaching results showed that,the effects of nitrogen fertilizer are varying with different environmental materials,the single environmental materials A,E and F,as well as their combinations(AE,AF,AEF) can significantly reduce the leaching of soil nitrate nitrogen.For the treatments added single environmental materials,A can significantly reduce the leaching of nitrogen in soil which nitrate nitrogen applied;F can play a better role of maintaining the nitrogen in soil which ammonium nitrogen applied,while A with the same effect which urea applied in soil.For the treatments added combined environmental materials,with the help of AE,the leaching of nitrate nitrogen,ammonium nitrogen and urea in soil decreased more than 3%,which indicated that AE played a better effect on maintaining various nitrogen fertilizers.更多还原