水文地质工程地质2012，Vol.39Issue(1)：75-80,6.
包气带硝酸盐分布的差异性及其形成机理:以正定、栾城为例
Differences in nitrate distribution in the unsaturated zone and its formation mechanism: a case study of Zhengding and Luancheng
摘要
Abstract
With a certain nitrate input at the land surface, different nitrate levels in the unsaturated zone can act as a direct proxy of an aquifer vulnerable to nitrate. Improved understanding of different nitrate distribution characteristics in the unsaturated zone and its formation mechanism is important to evaluate nitrate vulnerable of an aquifer and protect groundwater from nitrate pollution. This paper collects data of nitrate content of the only two existing unsaturated profiles in North China, summarizes the differences in nitrate distribution in the profiles, points out that infiltrate rate and denitrification potential are two keys to the differences. Furthermore, future developments in the unsaturated zone, which is quantification of denitrifcaiton potential using isotope techniques are proposed.关键词
包气带/硝酸盐含量/水分运移速度/反硝化程度Key words
unsaturated zone/ nitrate content/ infiltrate rate/ denitrification分类
农业科技引用本文复制引用
袁利娟,庞忠和..包气带硝酸盐分布的差异性及其形成机理:以正定、栾城为例[J].水文地质工程地质,2012,39(1):75-80,6.基金项目
国家自然科学基金资助项目(40872162) （40872162）
