Multiple cropping and forage-crop rotation can improve land productivity and natural
resource use efficiency in the traditional summer cropping system in dry-farming areas. To
determine the soil microbial community characteristics and its influencing factors under
different forage-crop rotations in the Longdong Loess Plateau, a field experiment was
conducted at the Qingyang Experimental Station of Lanzhou University from 2015 to 2017.
Seven crop rotation systems were designed: winter wheat-fallow-winter wheat (WFW), winter …

Weanalyzedthecompositionofthesoilbacteri… (0-10cmand10-20cm) underthreecrop-
foragerotationmodels; winterwheat-fallow-soybean (WFS), winterwheatforagerapeseed-
commonvetch (WRV), andwinterwheat/fallow-lucerne (W/FLL). Thesoilbacterial communitywasanalyzedbysequencing16Sr…
. Theresultsindicatedthatthedominant phylainthetopsoilwereProteobacteriaandAci…. Thedominantgenerainthetopsoilunderthethr…
, Gemmata, Nitrospira, Bradyrhizobium, Adhaeribacter, andBalneimonas. Thebacterialcommunitiesinthetopsoilundert…
-F-Srotationsequence weredominatedbyJanthinobacteriumandLy…, whichwererelatedtothepreventionandcontro …