Data of contents amino sugars and microbial necromass carbon in plant roots and the environmental variables

<p><span>Data display the results of environmental properties of 19 sampling sites, amino sugars and microbial necromass carbon (MNC) in the fresh roots of 27 dominant species and mixed roots (including dead roots) of mixed species in Inner Mongolian grasslands, AMF biomass and colonization rate in the fresh roots of 27 dominant species, contents of biomarkers (amino sugars and plant-derived lipids) and organic carbon during the decomposition experiment in model soils, and the relationships between environmental properties and root-borne MNC and their contribution to soil organic carbon.<br></span></p>