期刊论文详细信息
Quimica nova
Atmospheric deposition of ammonium, nitrate ans sulfate on the montane dense ombrophilous forest in Serra dos Órgãos, RJ
Mello, William Zamboni de1  Souza, Patricia Alexandre de1  Rodrigues, Renato de Aragão Ribeiro1 
[1] Universidade Federal Fluminense, Niterói, Brasil
关键词: rainwater chemistry;    wet deposition;    dry deposition.;   
DOI  :  10.1590/S0100-40422007000800009
学科分类:化学(综合)
来源: Sociedade Brasileira de Quimica
PDF
【 摘 要 】

Wet and dry (dust) deposition was measured inthe Serra dos Órgãos National Park. VWM pH was 5.3. Non-sea-salt(nss) SO42- comprised 97% of total SO42-.The molar ratio [2(nss-SO42-) + NO3-]/[NH4++ H+] was 1.1, suggesting that pH is predominantly controlled byH2SO4, HNO3, and NH3. Wet depositionof NH4+, NO3-, and nss-SO42-was respectively 0.59, 0.25, and 0.30 kmol ha-1 yr-1.Assuming that dry deposition of N can comprise 30-50% of its total (dry + wet)deposition, the latter is estimated to be 1.2-1.7 kmol ha-1 yr-1(17-24 kg N ha-1 yr-1).

【 授权许可】

CC BY   

【 预 览 】
附件列表
Files Size Format View
RO201902016700463ZK.pdf 915KB PDF download
  文献评价指标  
  下载次数:11次 浏览次数:25次