---

作 者 ：田大伦 朱小年 蔡宝玉 高跃明

期 刊 ：林业科学 1997年 33卷 zk2期 页码：12-18

关键词：降水；穿透水；树干茎流水；径流水；水化学动态；

Keywords:Precipitation, Throughfall, Stemflow, Runoff, Water chemistry,

摘 要 ：对杉木林、阔叶林集水区的降水、穿透水、树干茎流水、地表径流水和地下水中化学元素的动态特征进行研究的结果表明，大气降水中元素含量与降水形态、降雨量大小有关；穿透水和树干茎流水中绝大多数元素含量增加2—24倍。杉木林的地表径流水中K、Ca、Mg、Fe、Cu元素含量高于穿透水；地下水中绝大多数元素含量低于穿透水和地表径流水。该项研究，可为森林生态系统物质循环和区域环境质量评价提供科学依据。

Abstract:The dynamics of chemical elements in precipitation，throughfall，stemflow，surface runoff and underground runoff have been studied．The results showed that element con-tents in precipitation associated with the amount and its characteristics of a rainfall．Most element contents in throughfall and stemflow increased 2 to 24 times than in pre-cipitation．In Chinese fir plantations，the amount of most elements in surface runoff，such as K，Ca，Mg，Fe，and Cu，were larger than those in throughfall，while most element con-tents in underground runoff were lower than those in throughfall and surface runoff．The results can benefit the physical cycle in forest ecosystem and the large—scale evaluation of environment quality．

---