%0 Journal Article
%T Effects of Acidification and Liming on Organic Matter Leaching in Forest Soil<br>酸化及化学修复剂对森林土壤有机物淋溶的影响
%A DUAN Lei
%A ZHOU Yi
%A YANG Yong-sen
%A ZHAO Da-wei
%A ZHANG Dong-bao
%A <br>段雷
%A 周益
%A 杨永森
%A 赵大为
%A 张冬保
%J 环境科学
%D 2008
%I 
%X The potential effects of acidification and liming on the dynamics of carbon pool in forest soil were studied through field experiments at Tieshanping, Chongqing in Southwest China. The changes of dissolved organic matter (DOM) concentration in soil water in different layers within three years after application of limestone or magnesite indicated that soil remediation had leaded to significant decrease of DOM in soil water from mineral layers (e.g., DOC concentration in the upper layer decreased from 20.32±3.19 mg?L-1 in the reference plots to 15.69±2.39 mg?L-1 in limestone plots and 11.44±1.87 mg?L-1 in magnesite ones) as probably the results of increasing pH value and decreasing ion strength, although the DOM leaching from the litter layer was found increasing, especially in the first half year. Consequently, liming may not in long-term accelerate the transport of soil organic mater downward from the litter layer to the mineral layer, but prevent the acidified soil from DOM-leaching and thus carbon-pool losing.
%K dissolved organic matter
%K carbon pool
%K acid deposition
%K remediation
%K soil<br>溶解性有机物
%K 碳库
%K 酸沉降
%K 化学修复
%K 土壤
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=DC1E0D2D8CF56402B93DC4449D8A0A66&yid=67289AFF6305E306&vid=771469D9D58C34FF&iid=0B39A22176CE99FB&sid=78976D931AD1540F&eid=A48DE16C07AAAB06&journal_id=0250-3301&journal_name=环境科学&referenced_num=1&reference_num=22