酸解对香樟凋落物分解过程的短期影响

doi:10.3969/j.cnki.jdxb.2016.06.014

吉首大学学报（自然科学版）

酸解对香樟凋落物分解过程的短期影响

张宏珲，薛银婷，林永慧，何兴兵

（吉首大学生物资源与环境科学学院，湖南吉首 416000）

出版日期:2016-11-25 发布日期:2016-12-13
通讯作者: 何兴兵（1976—），男，山东日照人，吉首大学生物资源与环境科学学院教授，博士，主要从事微生物生态与微生物降解研究.
作者简介:张宏珲（1992—），女，湖南花垣人，主要从事微生物生态学研究
基金资助:
国家自然科学基金资助项目（31360135，31560205，41501335）；湖南省大学生研究性学习和创新性实验计划项目（237）；湖南省战略性新兴产业科技攻关项目（2014GK1062）

Short-Term Effect of Acidolysis on Decomposition of Cinnamomum Camphora Litter

ZHANG Honghui，XUE Yinting，LIN Yonghui，HE Xingbing

（College of Biology and Environmental Sciences,Jishou University，Jishou 416000,Hunan China）

Online:2016-11-25 Published:2016-12-13

摘要/Abstract

摘要：

以香樟落叶为分解底物材料，通过模拟酸雨研究酸解对凋落物分解的影响.结果表明，酸解作用在前期对凋落物失重率影响不大，在后期随着酸解增强失重率逐渐增大，凋落物CO₂释放在各处理之间差异无统计学意义，但是相应的分解酶如Cx、β-葡萄糖苷酶、α-淀粉酶、漆酶、过氧化物酶等在酸解pH值4.0强度下表现出明显高的活性，说明酸雨酸解作用短期内对香樟凋落物分解有明显的促进作用.

关键词： 失重率, CO₂释放, 酶活性

Abstract:

A 120-day experiment of decomposition was carried out in field using simulated acidolysis of Cinnamomum camphora litter to analyze mass loss，CO₂ release and related microbial enzymes.The results showed that acidolysis did not significantly affect mass loss of litter in the former stage，but mass loss increased with strengthening of acidolysis in the later stage.CO₂ release in degrading litter had not significant difference among each treatment of acidolysis，but related enzymes such as Cx，β-glucosidase，α-amylase，laccase and peroxidase were significantly improved in the treatment of pH was 4.0.In conclusion，acidolysis of acid rain significantly improves the litter decomposition of C. camphora in the short period.

Key words: mass loss, CO₂ release, enzyme activities

张宏珲，薛银婷，林永慧，何兴兵. 酸解对香樟凋落物分解过程的短期影响[J]. 吉首大学学报（自然科学版）, DOI: 10.3969/j.cnki.jdxb.2016.06.014.

ZHANG Honghui，XUE Yinting，LIN Yonghui，HE Xingbing. Short-Term Effect of Acidolysis on Decomposition of Cinnamomum Camphora Litter[J]. Journal of Jishou University（Natural Sciences Edition), DOI: 10.3969/j.cnki.jdxb.2016.06.014.

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酸解对香樟凋落物分解过程的短期影响

Short-Term Effect of Acidolysis on Decomposition of Cinnamomum Camphora Litter

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