Land-use and management practices affect soil ammonia oxidiser community structure, activity and connectedness

摘要: Factors affecting community structure and connectivity within systems are crucial for provision of microbial ecosystem-services (e.g., soil nitrogen cycling), but what these factors how they affected by land-use management is poorly understood. Biogeochemical cycles disrupted in agricultural-systems, providing an excellent opportunity to investigate the roles shaping communities ecosystem function. We investigated ammonia oxidisers under different cropping practices a nearby grassy woodland; representing gradient physical/chemical disturbance. Land-use resulted significant differences structure. Major system were observed between land-uses, not practices, indicating that change major driver change, rather than land-uses. Agricultural oxidiser appeared be less well connected rely on biotic interactions those natural systems, perhaps reflection extent which feedback loops disturbed managed systems. Smaller, significant, also evident treatments. Despite there was, however, no effect potential N-cycle rates, although impacts may drive changes, do necessarily translate into changes functional capacity.