本文選題：氮摻雜碳納米粒子 + 紅壤��； 參考：《農(nóng)業(yè)環(huán)境科學(xué)學(xué)報(bào)》2017年01期

【摘要】：采用室內(nèi)模擬裝置淋溶土柱的方法,研究了氮摻雜碳納米粒子(N-CNPs)配施尿素對紅壤中尿素氮損失和土壤鹽基離子的影響。結(jié)果表明:N-CNPs伴隨尿素施入紅壤后,在p H4.38的模擬酸雨多次淋溶條件下,能顯著降低紅壤氮素?fù)p失率;氮素?fù)p失率與N-CNPs的施用量呈正相關(guān),15‰N-CNPs配施尿素處理總氮損失率僅為單施尿素處理的49.45%;5‰N-CNPs用量所表現(xiàn)出的氮素?fù)p失率與5%雙氰胺(DCD)處理結(jié)果相近。N-CNPs施用后,土壤交換性陽離子淋失量降低,具體表現(xiàn)為Ca2+Mg2+Na+K+,p H值和鹽基飽和度(BS)升高,且與N-CNPs用量呈顯著正相關(guān)(P0.05)。這些結(jié)果表明,土壤p H值和BS的改善可能是N-CNPs施用于紅壤后引起土壤氮素淋失降低的原因之一。
[Abstract]:The effects of nitrogen-doped carbon nanoparticles (N-CNPs) and urea on the loss of urea nitrogen and the base ions of soil in red soil were studied by means of leaching soil column in laboratory simulation device. The results showed that the nitrogen loss rate of red soil could be significantly decreased under the condition of simulated acid rain leaching of pH4.38 with the addition of urea to red soil. There was a positive correlation between the nitrogen loss rate and the application rate of N-CNPs. The total nitrogen loss rate of 15 鈥，

本文編號：1962017