Microbial Ecologies (ME) is proposing a speculative scenario in which is able to explore new robotic fabrication processes as a framework for investigating the generation of (bio)artificial systems. These systems allow us to regenerate and protect the soil erosion and encourage healthy plant growth using interconnected 3D fiber systems. The research aims to explore a heterogeneity of fiber structures at a broad range of spatial scales. The heterogeneity and interconnectivity of the 3D fiber system within soil makes it a biodiverse microhabitat for the diverse microbial population and vegetal systems. The system that ME is proposing has a pivotal role in microbial interactions, therefore It is able to amplify the biodiversity of ecosystems. Microbial Ecologies focuses on the development of fiber structures to characterize soil at multiples scales that are relevant for micro organisms.