Fig 1.
Layout of shading and inundation experiment in the nursery.
Blue dashes indicate the ground water (GW) level, at GW level 10 cm (half of polybag’s height); GW level zero (the height of the polybag), and ⅓ stem height flooding. The diagram with no blue dashes indicates the control treatment (fully drained).
Table 1.
Abiotic factors in the nursery.
Fig 2.
Survival rate of four tropical peatland tree species.
A) Cratoxylum arborescens, B) Shorea balangeran, C) Nephelium lappaceum, D) Durio zibethinus, in treatment combination of shading and saturated condition. G0S0 = Freely drained 0% shading, G0S1 = Freely drained with 30% shading, G0S2 = Freely drained with 70% shading, G1S0 = GW level 10 cm 0% shading, G1S1 = GW level 10 cm with 30% shading, G1S2 = GW level 10 cm with 70% shading, G2S0 = GW level zero 0% shading, G2S1 = GW level zero with 30% shading, G2S2 = GW level zero with 70% shading, G3S0 = ⅓ stem height flooding 0% shading, G3S1 = ⅓ stem height flooding with 30% shading, G3S2 = ⅓ stem height flooding with 70% shading.
Table 2.
Survival rate of four plant species under different treatment.
Table 3.
RGRD of C. arborescens, S. balangeran, D. zibethinus and N. lappaceum at 9 weeks after planting in the shading and inundation treatments.
Table 4.
RGRH of C. arborescens, S. balangeran, D. zibethinus and N. lappaceum at 9 weeks after planting in the shading and inundation treatments.
Table 5.
Dry Weight (DW) of shoots of four plant species under treatment combination of shading and inundation.
Table 6.
Dry Weight (DW) of roots of four plant species under treatment combination of shading and inundation.
Table 7.
Root:Shoot Ratio (RSR) of four plant species under treatment combination of inundation and shading.
Fig 3.
Regression of shoot dry weight on root dry weight in seedlings of 4 plant species at 4 inundation levels: Dark circle (Y0) freely drained, light circle (Y1) GW level 10 cm indicates 10 cm inundation, dark triangle (Y2) GW level zero, light triangle (Y3) ⅓ stem height flooding.
A) C. arborescens, B) S. balangeran, C) D. zibethinus, D) N. lappaceum. Each point indicates the average from 3 samples.
Fig 4.
Number of adventitious roots on C. arborescens (CA) and Shorea Balangeran (SB) at 3 levels of shading and ⅓ stem height flooding.
Fig 5.
Adventitious root formation of C. arborescens (A-C) and S. balangeran (D-F) at the ⅓ stem height flooding. (A) & (D) 0% shading; (B) & (E) 30% shading; (C) & (F) 70% shading.
Table 8.
Photosynthesis rate of four plant species under different level of inundation and shading.