4Spring GP. Ratio of microbial biomass to soil organic matter carbon as a sensitive indicator of changes in soil organic matter [J]. Soil Research, 1992, 30: 195-207.
5Tiquia SM, Lioyd J, Herms DA, et al. Effects of mulching and fertilization on soil nutrients, microbial activity and rhizo- sphere bacterial community structure determined by analysis of TRFLPs of PCR-amplified 16S rRNA genes[ J]. Applied Soil Ecology, 2002, 21 (1): 31-48.
6沈萍,范秀容,李广武.微生物学实验[M].第三版.北京:高等教育出版社,2001:50-57.
7鲍士日:土壤农化分析[M].第三版.北京:中国农业出版社,2000:30-228.
8Brussaard L, De Ruiter PC, Brown GG. Soil biodiversity for agricultural sustainability[ J]. Agriculture Ecosystems & Envi- ronment, 2007, 121 (3) : 233-244.
9Van Elsas JD, Jansson JK, Trevors JT. Modern soil microbi- ology, second ed. [M]. CRC Press, Boca Raton: Whitman WB, 2006.
10Petersen SO, Frohne PS, Kennedy AC. Dynamics of a soil microbial community under spring wheat [ J ]. Soil Science Society of America Journal, 2002, 66 : 826-833.
