长期定位研究芦苇秸秆不同处理措施对改良盐碱地的影响

Long-Term Positioning Study on the Effects of Different Treatments of Reed Straw on Improving Saline-Alkali Land

摘要: 众所周知，芦苇是湿地环境中生长的主要植物之一，具有较强的耐盐碱性。在盐碱地种植芦苇可以起到一定的改良作用，本文通过在水泥罐装置的盐碱土中种植芦苇，连续9年采用芦苇秸秆还田和移除两种措施下，测定土壤0~40 cm土层pH的变化，反映不同芦苇秸秆处理对于改良土壤pH的影响。结果表明：芦苇秸秆移除措施对于改良盐碱地，降低盐碱地pH具有重要作用；芦苇秸秆还田对于降低盐碱地土壤电导率效果较为明显。

Abstract: It is well known that reed is one of the main plants growing in the wetland environment and has strong salt and alkali resistance. Planting reeds in saline-alkali soils can play a certain role in im-provement. In this paper, the reeds are planted in the saline-alkali soil of the cement tank plant, and the pH of the soil layer of 0 - 40 cm is determined by using reed straw returning and removing measures for 9 consecutive years. The change reflects the effect of different reed straw treatments on improving soil pH. The results showed that the removal measures of reed straw had an im-portant effect on improving the saline-alkali land and reducing the pH of saline-alkali soil. The re-turning of reed straw to soil was more effective in reducing the soil conductivity of saline-alkali soil.