农业机械学报2012，Vol.43Issue(3)：57-61,82,6.DOI:10.6041/j.issn.1000-1298.2012.03.011
不同施肥条件下微生物对棕壤团聚体和碳分布的影响
Effect of Microbial on Carbon Distribution in Brown Soil Aggregates under Different Fertilization
摘要
Abstract
Various particle-size fractions of soil aggregates were obtained with the wet-screening method from the soil of a long-term stationary fertilization experimental field of Beijing Yanqing Lvfulong organic vegetables farms to analyze the effect of microbial communities on carbon distribution in brown soil aggregates under different fertilizations with sequence analysis by 16SrDNA-PCR-DGGE technology. Results showed that with different fertilization treatments, treatments OF ( organic fertilizer) increased 0. 25 ~2 mm water stable aggregates by 109. 0% ; compared to CK ( unfertilized) , 0. 053 ~0. 25 mm and 0-0.053 mm particle aggregates decreased by 31.9% and 142.1%, respectively. Treatments OF significantly increased carbon content in aggregates of all particle sizes by 15. 2%~46. 9% compared to CK, and in the >2 mm aggregates by 46. 9% . The content of brown soil carbon was positively related to the content of the > 2 mm aggregates; significantly positive related to the content of the 0. 25 ~ 2 mm aggregates, but significantly negative related to the content of the 0. 053 ~0. 25 mm aggregates; negative related to the content of the 0 ~0. 053 mm aggregates.关键词
肥料/棕壤/团聚体/群落演替/碳Key words
Fertilizer/Brown soil/Aggregate/Microbial communities/Carbon分类
农业科技引用本文复制引用
王亮,孙向阳,刘克锋..不同施肥条件下微生物对棕壤团聚体和碳分布的影响[J].农业机械学报,2012,43(3):57-61,82,6.基金项目
北京市教育委员会科技成果转化与产业项目和北京市属高等学校人才强教计划资助项目(PHR201007140) （PHR201007140）
