3.1 Soil abiotic and biotic properties and stoichiometric
characteristics
N and P additions differently affected soil abiotic and biotic
properties (Table S1, Table S2). Nutrient additions increased soil AN,
with the pattern of N> NP
>P>Control, but decreased soil pH, SOC (Table
S1). Compared with Control, P and NP addition decreased soil C:N (Figure
1). N addition increased C:P and N:P while NP and P addition decreased
soil C:P and N:P. Nutrient additions increased microbial C:N while
decreased microbial C:P and N:P, with the lowest C:P and N:P under P
addition.