皖南丘陵地区小流域氮素径流输出的动态变化  

Dynamic Change in Nitrogen Discharge with Runoff from a Small Watershed in Southern Anhui Hilly Areas.

作　　者：杨金玲[1] 张甘霖[1] 周瑞荣[1] 

机构地区：[1]中国科学院南京土壤研究所,江苏南京210008

出　　处：《农村生态环境》2001年第3期1-4,共4页Rural Eco-Environment

基　　金：国际科学基金(IFS;C/2 661)资助

摘　　要：以亚热带北部皖南丘陵地区小流域定位实地观测为基础 ,研究了农林共存小流域氮素径流输出规律。发现小流域氮素径流输出季节性变化明显。降雨和施肥是影响这一变化的重要因子 ,模拟分析表明 。Through the research of dynamic change in nitrogen discharge with runoff from a small watershed in southern Anhui Province, we found drastic seasonal changes in nitrogen discharge with runoff, which was attributed to the impact of rainfall and fertilizer use. There is a significant linear relationship between nitrogen discharge and rainfall and the amount of fertilizer applied. Equations for prediction of nitrogen discharge were established based on the study.

关 键 词：丘陵地区 小流域 径流 氮 养分输出 皖南地区 动态变化 水体污染 降雨 施肥 

分 类 号：X522[环境科学与工程—环境工程] X592