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当前位置: 首页 > 文章 > 稻田径流侵蚀泥沙对氮素流失的影响 土壤通报 2011,42 (5) 1219-1224
Position: Home > Articles > Effect of the Sediment by Surface Runoff on Nitrogen Loss in the Paddy Field Chinese Journal of Soil Science 2011,42 (5) 1219-1224

稻田径流侵蚀泥沙对氮素流失的影响

作  者：
郭智;肖敏;陈留根;郑建初
单  位：
江苏省农业科学院农业资源与环境研究所
关键词：
氮;径流;侵蚀泥沙;养分流失
摘  要：
采用田间小区定位试验研究了自然降雨条件下稻田径流侵蚀泥沙对氮素流失的影响。结果表明:常规施肥(T0)条件下,稻季径流侵蚀泥沙量可达5113.63 kg hm-2,秸秆还田(T1)和还田减肥(T2)处理均显著降低侵蚀泥沙量达6.02%和7.18%。T1、T2和肥料运筹(T3)处理均能降低侵蚀泥沙全氮(TN)和速效氮(AN)平均浓度,分别达0.46%、6.46%、0.47%和5.57%、18.67%、13.98%。同时,就稻季侵蚀泥沙流失氮素总量而言,T0处理TN流失达14.24 kg hm-2,T1和T2处理均能显著降低侵蚀泥沙TN流失量,分别达7.58%和14.10%。同时,T1处理能够显著降低TN流失率7.58%,而T2处理则显著增加TN流失率7.37%。
译  名：
Effect of the Sediment by Surface Runoff on Nitrogen Loss in the Paddy Field
作  者：
GUO Zhi,XIAO Min,CHEN Liu-gen,ZHENG Jian-chu(Institute of Agricultural Resource and Environment,Jiangsu Academy of Agricultural Science,Nanjing 210014,China)
关键词：
Nitrogen;Runoff;Sediment;Nutrient loss
摘  要：
Field plot experiment was carried out to study the effects of sediment by surface runoff on nitrogen loss in the paddy field under natural rainfall conditions.The results showed that total quantity of the sediment reached 5113.63 kg hm-2 during the whole paddy season in the treatment of conventional fertilization conditions(T0).While wheat straw returning(T1) and wheat straw returning and reducing fertilizer(T2) significantly reduced 6.02% and 7.18% of the sediment compared to T0.And,T1,T2 and fertilizer application(T3) treatments decreased the average concentrations of total nitrogen(TN) and available nitrogen(AN) by 0.46%,6.46%,0.47% and 5.57%,18.67%,13.98%,respectively.Furthermore,the total quantity of TN loss reached 14.24 kg hm-2(T0) during the whole paddy season,while T1 and T2 treatments significantly reduced the quantity of TN loss compared to T0 by 7.58% and 14.10%,respectively.Meanwhile,in comparison with T0,T1 treatment significantly decreased 7.58% TN loss;however,T2 treatment significantly increased 7.37% TN loss.

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