森林与环境学报2017，Vol.37Issue(2)：148-154,7.DOI:10.13324/j.cnki.jfcf.2017.02.004
凋落物配比对杉木土壤微生物碳代谢多样性的影响
Responses of carbon metabolism diversity of topsoil microbial to the litterfall addition in Cunninghamia laneolata plantation
摘要
Abstract
In the 4-,15-and 32-year artificial forest of Cunninghamia laneolata,the net bags of different ratio C.laneolata and Michelia macclurei litterfalls and blank control plots were conducted.Biolog technique was used to analyze the microbial diversity index and the carbon metabolism diversity in 0～ 5 cm soil layer under different proportioned litterfalls,and to study the effects of different proportioned litterfalls on the carbon source utilization and microbial diversity of soil microbes.The result showed that the total soil microbial metabolic activity (average well color development,AWCD) was 32 a＞ 15 a＞4 a.The total metabolic activity under C1M2 treatment in the 4-year topsoil was the highest than other treatments.The difference of Shannon and Simpson index in topsoil was not significant,and the effect of C1M2 (P=0.001) on McIntosh index of soil microbial was significant.The main types of carbon source utilization in those plantations were carbohydrate,polymer and amino acid,which was under C2MI and C treatments were clustered into one group,but under C1M2, C1M1 and M treatments in the 15-,32-year stands were clustered into another group.关键词
杉木人工林/凋落物配比/土壤微生物/碳代谢多样性Key words
artificial forest of Chinese fir/ratio of litterfall/soil microbial/diversity of carbon metabolism分类
农业科技引用本文复制引用
王珍,曹光球,张月全,张海燕,王飞,陈爱玲..凋落物配比对杉木土壤微生物碳代谢多样性的影响[J].森林与环境学报,2017,37(2):148-154,7.基金项目
“十三五”国家重点研发计划项目(2016YFD0600301) （2016YFD0600301）
国家自然科学基金项目(31270676). （31270676）
