Belowground response of prairie restoration and resiliency to drought

摘要: Abstract Agricultural land use is a major threat to biodiversity and ecosystem functions in tallgrass prairies. However, there are proposed bioenergy systems that can biomass harvested from restored prairie, creating potential free market incentive for landowners restore These alternative management practices may alter associated soil microbial communities their services. We examined changes community structure, function, resiliency drought following two prairie restorations row-crop agriculture through subsequent succession fertilized unfertilized prairie. The structure was assessed amplicon (16S ITS) sequencing, function extracellular enzyme activity, indices were calculated both diversity measures activity. hypothesized 1) distinct each system will continue develop over time reflecting the extent of divergence between plant communities, due strong selective forces have on microbiome. 2) Microbial enzymatic diverge across sampling years. 3) see increased prairies potentially greater this community, possible enhancement functional redundancy. Our experiment demonstrates as restoration progresses. Planted with higher supported than corn systems. Corn monocultures less resistant stress, evidenced by decreased activity richness. Prairies exhibited systems, measured cellulose-degrading received nitrogen fertilization maintained high even under drought. study diverse cropping benefit confer disturbance events. Increasing resiliency, while maintaining productivity, key managing crops sustainable biofuel uses. multi-year reveals benefits long-term experiments capturing dynamic range mediation carbon nutrients importance developing modeling predictive biogeochemical models.