Solidago canadensis invasion affects soil N-fixing bacterial communities in heterogeneous landscapes in urban ecosystems in East China

S. canadensis invasion may likely alter the community structure of soil nitrogen-fixing bacterial communities rather than the diversity or richness to facilitate its invasion process. The community invasibility of farmland wasteland may be higher than that of the other types of urban ecosystem. Meanwhile, landscape heterogeneity, rather than S. canadensis invasion, was the strong controlling factor that triggered pronounced effects on the diversity and richness of soil nitrogen-fixing bacterial communities.124