作者: N. Senesi , Y. Chen
DOI: 10.1007/978-3-642-74468-6_3
关键词:
摘要: Humic substances (HS) are the most widespread and ubiquitous natural nonliving organic materials occurring in all terrestrial aquatic environments. HS occur not only as major fraction of soil matter (OM), but also marine, river lake waters sediments, sewage effluents various nature, peat, coal lignite. The amount carbon on earth humic (60×1011 tons) has been estimated to exceed about 10-fold that living organisms (7×1011 tons).