Fig. 1
From: Divergent accumulation of microbial necromass and plant lignin components in grassland soils

Sampling sites and biomarker concentrations. Spatial distribution of sampling sites across the Mongolian grasslands (a) and soil organic carbon (SOC)-normalized concentrations of amino sugars (b) and lignin phenols (c) in the surface soils. Land cover classification is based on the Global Land Cover Characteristics Database v2.0 (https://lta.cr.usgs.gov/GLCC). Data for aridity index are obtained from Global Aridity and PET Database (http://www.cgiar-csi.org/data/global-aridity-and-pet-database)