Long-term responses of plant growth, soil microbial communities and soil enzyme activities to elevated CO2 and neighbouring plants

Increasing soil age drives shifts in plant-plant interactions from positive to negative and affects primary succession dynamics in a subalpine glacier forefield

“…The composition of soil microbial communities was assessed by the PLFA analysis using a modified method of Frostegård et al (1991), as described by Xu et al (2015) and Duan et al (2015). Briefly, 6 g of frozen soil was extracted with a chloroform:methanol:citrate acid buffer mixture (1:2:0.8, v/v/v).…”

Elevated CO2 and nitrogen addition have minimal influence on the rhizospheric effects of Bothriochloa ischaemum

“…CO 2 concentrations are generally much higher in the pore spaces of soil (2000–3800 μmol mol −1 ) than in the atmosphere, so elevated CO 2 usually influences the richness, composition, and structure of the communities indirectly, such as by increasing plant carbon (C) inputs to the soil and altering soil properties 7 . Phospholipid fatty acid (PLFA) analysis and denaturing gradient gel electrophoresis indicated that CO 2 enrichment had no detectable effects on the composition and structure of the community 8 – 12 , but usually stimulated soil respiration 11 , 13 . Analyses of functional genes indicated that elevated CO 2 decreased the expression of genes involved in the C and N cycles 14 , 15 , but Liu et al .…”

Dynamic characteristics of soil properties in a Robinia pseudoacacia vegetation and coastal eco-restoration

“…Moreover, plants play an important role on soil microbial community Liang et al, 2015). These labile compounds from plants could stimulate soil microbial and enzyme activity (Duan et al, 2015;Xiao et al, 2015). Likewise, increases in soil enzyme activities accelerated the decomposition of organic matter.…”