安徽农业科学Issue(12)：7269-7270,7312,3.
沂蒙山区典型小流域次暴雨的氮磷输出特征
Output Characteristics of Non-point Nitrogen and Phosphorus from a Typica1 Small Wa~rshed in Yimeng Mountainous Area during a Rainstorm
摘要
Abstract
[ Objective] The study aimed to reveal the output characleristics of non-point nitrogen and phosphorus from a typical small watershed in Yimeng mountainous area during a rainstorm. [Method] The dynamic changes of pollulant concentrations and precipitation runoff during the rainstorm on Augusl 12, 2010 were monitored at the outlet of Menglianggu watershed. [ Result] During the rainstorm, the generation of runoff was sudden and ephemeral, and the peak of the runoff lagged behind that of rainfall intensity; the concentralion of AN and TN increased firstly and then tended to he stable, while the concentration of NN had no significance change at the beginning of the rainfall, then improved gradually and tended to be stable finally; the concentralion of DOP had no significance change during the rainstorm, but the concentration of DIP, DP, PP and TP rose firstly and then tended to be stable, and the peaks of their concentrations appeared before the peak of the flow. In addition, the output concentration of TN and TP was far higher than the standard concentration of water eutrophication. [ Conclusion ] The study can provide scientific references for the reasonable control of non-point source pollution pollution in Yimeng mountainous area.关键词
降雨径流/暴雨/氮磷流失/沂蒙山区Key words
Rainfall runoff/ Rainstorm/ Loss of nitrogen and phosphorus/ Yimeng mountainous area分类
农业科技引用本文复制引用
李振炜,吴迪,于兴修,井光花..沂蒙山区典型小流域次暴雨的氮磷输出特征[J].安徽农业科学,2012,(12):7269-7270,7312,3.基金项目
临沂市重大科技创新项目(201011019) （201011019）
山东省科技攻关项目(2009G G10006015) （2009G G10006015）
水利部淮委科技项目(SBJ2010003). （SBJ2010003）
