Response of microbial community to long-term fertilization and land management in a Chinese Mollisol
Effects of long-term fertilization and land management on the microbial communities in a Chinese Mollisol were investigated by the determination of phospholipid fatty acids (PLFAs), soil microbial biomass C or N (Cmic or Nmic) and soil respiration. Compared to CK and NPK, farmyard manure (FYM) application and fallow constantly maintained high Cmic-to-Corg ratios, high Cmic (Nmic) and PLFAs contents, and low qCO2 value. Mere chemical NPK did not improve the nutrition status but promoted Corg loss and inhibited microbial growth. PCA of PLFAs showed that the microbial community structure in arable fields (with FYM or not) and fallow were significantly different from each other. The loading values for the individual PLFA showed that fungal PLFAs were mainly affected by fallow management, while most bacterial PLFAs were affected by FYM application.
phospholipid fatty acids (PLFAs) soil respiration microbial biomass carbon or nitrogen (Cmic or Nmic) farmyard manure (FYM) chemical fertilizition fallow Mollisol
BAI Zhen Xie Hongtu Ding Xueli ZHANG Xudong BAI Zhen Ding Xueli
Key Laboratory of Terrestrial Ecological Process Institute of Applied Ecology,Chinese Academy of Sci Graduate School of Chinese Academy of Science Beijing 100039,China
国际会议
北京
英文
1-6
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）