不同耕作方式对农田土壤微生物功能多样性的影响.pdf

Hans Journal of Agricultural Sciences 农业科学, 2016, 6(1), 1-9 Published Online February 2016 in Hans. /journal/hjas /10.12677/hjas.2016.61001 Effects of Different Tillage Methods on Functional Diversity of Soil Microbial Community Hongmei Liu1,2, Guilong Zhang1,2, Chaohe Huangfu1,2, Dianlin Yang1,2, Jianning Zhao1,2 1Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 2Tianjin Engineering Research Center of Agricultural Ecological Environmental Remediation, Tianjin Received: Jan. 30th, 2016; accepted: Feb. 19th, 2016; published: Feb. 23rd, 2016 Copyright ? 2016 by authors and Hans Publishers Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). /licenses/by/4.0/ Abstract The aim was to study the influence of different tillage methods on functional diversity of soil mi- crobial community in the North China farming areas. Using the method of Biolog-Eco, a compara- tive study was made on the utilization level of single carbon source by the soil microbes of four tillage methods (abandoned LF, conventional FT, rotary RT, no-tillage NT). The results showed that: 1) the Average Well Color Development (AWCD) value of abandoned tillage, no-tillage, rotary tillage were significantly higher than conventional tillage (P 0.05); 2) the Shannon index (H) and Simpson’s Dominance (D) of the soil microbial community of abandoned tillage, no-tillage, rotary tillage were significantly higher than conventional tillage (P 0.05), whereas the Shannon index (H), Simpson’s Domin