Skip to main content

Table 2 Degradation ratios (%) of soil-buried PBSA films

From: Contribution of soil esterase to biodegradation of aliphatic polyester agricultural mulch film in cultivated soils

Soil sample Degradation ratio (%)*
Incubation period (week)
1 2 3 4
CHI −2.4 ± 2.5 −0.9 ± 0.9 7.4 ± 7.3 33.1 ± 9.0
TKB 1.0 ± 3.5 −0.7 ± 1.3 0.8 ± 1.5 1.4 ± 3.4
HIO −1.7 ± 1.1 1.2 ± 1.4 −0.2 ± 0.2 7.3 ± 8.1
MJO 0.6 ± 1.7 0.6 ± 3.0 4.0 ± 2.0 7.9 ± 1.8
TAK 1.8 ± 2.5 3.3 ± 1.7 5.4 ± 3.2 30.1 ± 6.6
KIB −4.0 ± 2.1 7.8 ± 5.7 34.5 ± 8.3 58.9 ± 36.3
OKA 0.4 ± 2.6 3.9 ± 5.8 60.3 ± 23.2 95.9 ± 6.6
AKA −4.7 ± 2.5 0.5 ± 2.3 54.3 ± 22.9 66.0 ± 17.3
MIY 1.2 ± 0.2 5.2 ± 3.2 28.5 ± 27.7 69.7 ± 33.2
YM1 2.7 ± 0.9 16.9 ± 3.4 62.0 ± 14.1 48.5 ± 11.6
YM2 0.9 ± 1.0 21.4 ± 5.0 44.1 ± 9.2 61.3 ± 8.4
  1. *The ratios represent the means ± standard error of triplicate assays.
  2. Degradation ratios were calculated by image scanning method as indicated in the equation given in the Materials and methods section.