Table 2.
Foliar nutrients, litter, soil nutrients, and soil enzyme activities in different forest stands in the study area.
| Category of environmental factors | Environmental factors | LS | FX | HJ |
|---|---|---|---|---|
| Leaf nutrients | LOC | 518.35 ± 4.60 | 504.64 ± 12.21 | 497.34 ± 1.55 |
| LTN | 16.07 ± 0.74 | 15.62 ± 0.95 | 11.43 ± 0.28 | |
| LTP | 1.74 ± 0.05 | 1.32 ± 0.02 | 1.43 ± 0.02 | |
| Litter nutrients | LLOC | 495.27 ± 2.50 | 467.68 ± 3.13 | 495.74 ± 3.84 |
| LLTN | 11.34 ± 0.43 | 12.05 ± 0.58 | 10.09 ± 0.18 | |
| LLTP | 0.79 ± 0.02 | 0.81 ± 0.01 | 0.75 ± 0.01 | |
| Soil nutrients | SOC | 26.43 ± 3.01 | 23.27 ± 1.56 | 30.27 ± 1.48 |
| STN | 1.19 ± 0.03 | 1.03 ± 0.02 | 1.18 ± 0.08 | |
| STP | 0.44 ± 0.01 | 0.40 ± 0.02 | 0.41 ± 0.02 | |
| SMSOC | 18.59 ± 1.67 | 22.93 ± 2.91 | 28.92 ± 4.79 | |
| SISOC | 18.37 ± 1.29 | 21.57 ± 3.63 | 25.40 ± 4.93 | |
| SCSOC | 15.92 ± 1.93 | 21.01 ± 3.82 | 18.92 ± 4.93 | |
| SMTP | 0.86 ± 0.08 | 0.60 ± 0.05 | 0.89 ± 0.02 | |
| SITP | 0.76 ± 0.11 | 0.73 ± 0.04 | 0.70 ± 0.05 | |
| SCTP | 0.86 ± 0.07 | 0.73 ± 0.05 | 0.73 ± 0.06 | |
| SMTN | 0.19 ± 0.02 | 0.18 ± 0.02 | 0.27 ± 0.02 | |
| SITN | 0.24 ± 0.03 | 0.23 ± 0.00 | 0.14 ± 0.03 | |
| SCTN | 0.17 ± 0.02 | 0.25 ± 0.02 | 0.08 ± 0.02 | |
| EEG | 1.21 ± 0.07 | 1.34 ± 0.07 | 1.2 ± 0.22 | |
| SMEEG | 1.08 ± 0.16 | 0.99 ± 0.07 | 1.03 ± 0.07 | |
| SIEEG | 0.85 ± 0.09 | 0.87 ± 0.04 | 0.89 ± 0.07 | |
| SCEEG | 1.20 ± 0.09 | 0.95 ± 0.05 | 1.12 ± 0.02 | |
| TG | 5.73 ± 0.47 | 6.07 ± 0.68 | 5.77 ± 0.80 | |
| SMTG | 4.45 ± 0.32 | 4.7 ± 0.3 | 4.41 ± 0.19 | |
| SITG | 4.32 ± 0.19 | 4.42 ± 0.51 | 3.80 ± 0.37 | |
| SCTG | 4.73 ± 0.15 | 4.69 ± 0.49 | 4.30 ± 0.30 | |
| Enzyme activity | ACP | 1.22 ± 0.06 | 1.17 ± 0.1 | 0.81 ± 0.28 |
| URE | 4.94 ± 2.25 | 5.03 ± 1.81 | 4.34 ± 1.35 | |
| CAT | 0.43 ± 0.12 | 0.56 ± 0.11 | 0.54 ± 0.05 |
LS, pure Cryptomeria fortunei; FX, pure Liquidambar formosana; HJ, mixed forests; LOC, leaf organic carbon; LTN, leaf total nitrogen; LTP, leaf total phosphorus; LLOC, litter layer organic carbon; LLTN, litter layer total nitrogen; LLTP, litter layer total phosphorus; SOC, soil organic carbon; STN, soil total nitrogen; STP, soil total phosphorus; SMSOC, soil macroaggregate organic carbon; SISOC, soil intra-macroaggregate organic carbon; SCSOC, soil-clay organic carbon; SMTP, soil macroaggregate total phosphorus; SITP, soil intra-macroaggregate total phosphorus; SCTP, soil-clay total phosphorus; SMTN, soil macroaggregate total nitrogen; SITN, soil intra-macroaggregate total nitrogen; SCTN, soil-clay total nitrogen; EEG, soil easily-extractable glomalin-related soil protein; SMEEG, soil macroaggregate easily-extractable glomalin-related soil protein; SIEEG, soil intra-macroaggregate easily-extractable glomalin-related soil protein; SCEEG, soil-clay easily-extractable glomalin-related soil protein; TG, soil total glomalin-related soil protein; SMTG, soil macroaggregate total glomalin-related soil protein; SITG, soil intra-macroaggregate total glomalin-related soil protein; SCTG, soil-clay total glomalin-related soil protein; ACP, acid phosphatase; URE, urease; CAT, catalase.