地下水埋深与芦苇生长的响应机制研究

The Response Mechanism of Groundwater Depth and Reed Growth

由于芦苇各生长阶段需水量不同,对芦苇湿地进行水位的管理会影响芦苇的生长发育和产量。通过为期2年的野外试验,利用桶栽方法,控制地下水埋深分别为0(饱和状态)、10、20、30、40 cm的试验条件,利用SPSS分析软件,得出不同地下水埋深与芦苇苗期各项生长指标的响应状况。结果表明,不同的地下水埋深处理对芦苇的株高生长、茎粗生长和分蘖影响显著,其中10 cm是芦苇苗期生长和出苗的最佳地下水埋深。可见,控制芦苇不同时期生长的地下水埋深状况,能有效提高芦苇产量。

As reed has different requirement of the water during various growth stage stages,managing water level in wetland will affect the growth and yield.This study was a two-year field experiment,using a barrel planting methods to control the groundwater table as 0 cm（saturated）,10 cm,20 cm,30 cm,40 cm experimental conditions.By using SPSS analysis software,the mechanism of reed seedling growth index responsing to different groundwater tables was obtained.The results showed that different groundwater depth did an important role to reed height,stem diameter and tillering.10 cm was the best groundwater table to reed seedling growth.It showed that controlling groundwater depth conditions during reed growth periods could improve the reed output effectively.