Skip to main content

Table 1 Effect of different treatments, plant species, sample types and their interaction on C concentration, N concentration, δ13C and δ15N plant and soil

From: Variations in the natural 13C and 15N abundance of plants and soils under long-term N addition and precipitation reduction: interpretation of C and N dynamics

   δ15N value N concentration δ13C value C concentration
Treatments F value 73.02 4.39 7.21 3.94
P value < 0.001 < 0.001 < 0.001 < 0.001
Plant species F value 94.90 269.25 98.44 16.83
P value < 0.001 < 0.001 < 0.001 < 0.001
Sample types F value 1992.63 843.83 493.79 2604.86
P value < 0.001 < 0.001 < 0.001 < 0.001
T × P F value 7.94 8.97 5.02 9.12
P value < 0.001 < 0.001 < 0.001 < 0.001
T × S F value 20.99 6.75 4.43 6.00
P value < 0.001 < 0.001 < 0.001 < 0.001
S × P F value 29.95 66.54 22.62 9.00
P value < 0.001 < 0.001 < 0.001 < 0.001
T × P × S F value 10.88 4.31 3.71 4.63
P value < 0.001 < 0.001 < 0.001 < 0.001
  1. T × P represents interaction of treatments and plant species; T × S represents interaction of treatments and sample types; S × P represents interaction of sample types and plant species; T × P × S represents interaction of treatments, sample types and plant species