纳米-亚微米级复合材料对褐潮土有机无机复合体含量及各粒级复合体中C、N、P含量与分布的影响  

Effect of Nano-subnanocomposites on contents and distribution of organic C,total N and P in soil organic-mineral granules in drab fluvo-aquic soil

作　　者：刘秀梅[1] 冯兆滨[1] 张树清[2] 张夫道[2] 王玉军[2] 张建峰[2] 肖强[2] 

机构地区：[1]江西省农业科学院土壤肥料研究所,江西南昌330200 [2]中国农业科学院土壤肥料研究所,北京100081

出　　处：《植物营养与肥料学报》2007年第1期57-63,共7页Journal of Plant Nutrition and Fertilizers

基　　金：国家"863"计划课题(2001AA218041)资助

摘　　要：通过盆栽试验研究了纳米．亚微米级复合材料对褐潮土各粒级复合体组成及其中C、N、P含量与分配的影响。结果表明，1）施入纳米-亚微米级复合材料后，褐潮土各粒级复合体的含量较对照发生了改变，F1（〈2μm）和B（10-50μm）粒级含量降低，F2（2～10μm）和F4（50～100μm）粒级含量增加。2）纳米-亚微米级复合材料可提高土壤及各粒级中C、N、P的含量，而增加幅度因材料而异；蒙脱土纳米-亚微米级复合物〉高岭土纳米-亚微米级复合物〉塑料纳米-亚微米级复合物。3）F3（10-50μm）粒级中有机碳、全氮、全磷含量较低，但该粒级复合体含量占土壤固相的比重最大，因此该粒径中C、N、P对土壤肥力的贡献较大。4）纳米-亚微米级复合材料使土壤的有机碳、氮、磷在各粒级复合体中分配系数的增加以F2（2～10μm）粒级最高，说明各养分进入F2粒级最多，表明该粒级对土壤养分的转化和平衡起着重要的调节作用。The effect of Nano-subnanocomposites on contents and distribution of organic C, total N and P in soil organicmineral granules in drab fluvo-aquic soil were studied through potted planting in greenhouse. The major results are as follows： 1 ） Nano-subnanocomposites application changed the contents of soil organic-mineral granules compared to control with equivalent contents of nitrogen, phosphorus, potash. The contents of F1 （〈 2 μm） and F3（10-50μm） decreased, while the contents of F2（2-10μm） and F4（50-100μm） increased. 2） The contents of organic C, total N and P in different sized granules and total soil were enhanced due to Nano-subnanocomposites application, and the magnitude of enhancement depended on different Nanocomposites materials with the following order： Nano-montmorillonite 〉 Nano-kaoline 〉 Nano-polystyrene. 3） Although the contents of organic C, total N and P in F3 （10-50μm） was lower comparer to others, it was still important in terms of soil fertility since it account for the highest distribution proportion of granules in drab tidal soil, so F3（ 10-50μm） was still important in terms of soil fertility. 4） The increased distributive proportion of organic C, total N and P in F2（2-10μm） granules was highest due to Nano-subnanocomposites application, which showed that most nutrients had entered the F2（2-10μm） granules, and F2（2-10μm） played an essential role in the cycling, transforming and holding capacity of soil nutrients.

关 键 词：纳米-亚微米级复合材料 有机无机复合体 粒级 养分 

分 类 号：S153[农业科学—土壤学]