中国造纸学报2025，Vol.40Issue(2)：17-25,9.DOI:10.11981/j.issn.1000-6842.2025.02.17
玉米秸秆乙酸法水解液对盐碱土的改良效果研究
Study on the Effect of Acetic Acid Hydrolysate of Corn Stalk on the Improvement of Saline-sodic Soil
摘要
Abstract
This study investigated the effects of hydrolysis temperature on the physicochemical properties of hydrolysis residues,hydrolysate,and solid in the hydrolysate during the acetic acid hydrolysis of corn stalk,as well as the soil improvement effects of the hydrolysate on saline-sodic soil.The results indicated that under conditions of acetic acid water-soluble liquid with volume fraction of 20%,a solid-liquid ratio of 1∶10(g∶mL),a pH value of 2.4,and a hydrolysis time of 1 h,increasing the hydrolysis temperature promoted the accumulation of sugars in the hydrolysate,with the maximum total sugar(including glucose,xylose,and arabinose)content of 7.34 g/L at 140℃;at 160℃,the solu-bility rates of cellulose,hemicellulose,and lignin reached 28.65%,84.55%,and 16.77%,respectively.Additionally,the hydrolysate contained abundant organic matter and had a low pH value.When diluted 100-fold and used as a soil conditioner for saline-alkali soil,it ef-fectively reduced the pH value,electrical conductivity(EC),and exchangeable sodium percentage(ESP)of the soil,while increasing the soil organic matter content(SOM).After three cultivation cycles,the saline-sodic soil transformed from moderately saline-sodic soil to slight-ly saline-sodic soil,demonstrating significant improvement effects.关键词
玉米秸秆/水解液/乙酸/生物质基盐碱土改良剂Key words
corn stalk/hydrolysate/acetic acid/bio-based saline-sodic soil amendment分类
轻工业引用本文复制引用
尚进,平清伟,盛雪茹,张健,李娜,王兵..玉米秸秆乙酸法水解液对盐碱土的改良效果研究[J].中国造纸学报,2025,40(2):17-25,9.基金项目
辽宁省振兴人才培养计划(XLYC1802025). （XLYC1802025）
