土壤环境微界面过程及污染控制.pdfVIP

29 1 V o l. 29, N o. 1 2009 1 A cta Scientiae C ircum stantiae J an. , 2009 , , . 2009. [ J]. , 29 ( 1) : 2 1- 27 H e J Z, Z heng Y M, Q u J H. 2009. So il env ironm en ta lm icro- in terfaces and po llu tion con trol[ J] . A cta Scient iae C ircum stan tiae, 29( 1) : 2 1- 27 * 贺纪正 , 郑袁明, 曲久辉 中国科学院生态环境研究中心, 北京 100085 : 2008- 10-09 : 2008- 11-03 : () . /. , . -, / / //. , , . , . , , ( ) , . , , . : : 0253-2468 ( 2009) 0 1- 2 1-07 : X 131. 3 : A Soil environm entalm icro-interfaces and pollution control * HE Jizheng , ZHENG Y uanm ing, QU J iuhu i R esearch C en tre for E co-env ironm en tal Sciences, Ch inese A cadem y of S cien ces, B eijing 100085 R eceived 9 O ctober 2008 accepted 3 N ov emb er 2008 A bstract: So il env ironm en tal m icro- in terfaces are of a collection and a con tinuum of surfaces of soi l clay m inerals, ox ides, organ ic matters, p lan t roots and m icrobes. T he so il col loidal interfaces could be smi p ly d escribed as a d iffu se electrical doub le-lay er structu re on th e in terface of so il particles and solu tions. T hese heterogeneou s m icro- interfaces can b e d iv ided into three types based on their surface structu re characterizations: s ilox an e, hyd rous ox id e and organ ic m at ter surfaces. T h e tran sport, transform at ion and degrad at ion of pol lutan ts in the soil are dynam ic p rocesses, includ ing a series of reactions of sorp tion / d esorpt ion, precip itat ion / d issolu tion, comp lexat ion / ch elation, and ox idat ion / reduct ion. R h izo sph ere interface is the m o st active area in soil-p lant ecosy stem s w ith intens iv e interact ions am ong so il part ic