Table 2.
Statistics on leaf morphology
| City | Type | Tree species | GP (%) | LHa(mm−2) | LHb(mm−2) | LHt(mm−2) | SD (mm−2) | SS(μm) |
|---|---|---|---|---|---|---|---|---|
| Chongqing | Broadleaf | Platanus orientalis | 13.37 ± 1.87 | 0 | 2.33 ± 0.58 | 2.33 ± 0.58 | 37.21 ± 3.18 | 75.67 ± 7.59 |
| Cinnamomum japonicum | 2.73 ± 0.76 | 0 | 0 | 0 | 8.84 ± 0.74 | 12.33 ± 1.34 | ||
| Broussonetia papyrifera | 14.17 ± 2.08 | 20.33 ± 3.06 | 43.00 ± 8.54 | 63.33 ± 11.60 | - | - | ||
| Cinnamomum camphora | 11.19 ± 2.81 | 0 | 0 | 0 | 15.64 ± 1.12 | 132.67 ± 15.42 | ||
| Ginkgo biloba | 6.67 ± 1.51 | 0 | 0 | 0 | 17.24 ± 1.07 | 20.00 ± 3.98 | ||
| Ficus virens | 12.47 ± 2.36 | 0 | 0 | 0 | 17.54 ± 0.98 | 30.33 ± 3.85 | ||
| Ficus microcarpa | 13.81 ± 3.04 | 0 | 0 | 0 | 36.49 ± 2.89 | 138.67 ± 14.77 | ||
| Erythrina variegata | 17.01 ± 3.41 | 0 | 0 | 0 | 20.07 ± 1.41 | 50.24 ± 3.47 | ||
| Grevillea robusta | 23.66 ± 3.79 | 6.33 ± 1.52 | 12.67 ± 1.53 | 19.00 ± 3.05 | 22.54 ± 2.57 | 47.27 ± 3.18 | ||
| Symplocos setchuensis | 13.77 ± 1.27 | 0 | 21.33 ± 6.51 | 21.33 ± 6.51 | 21.45 ± 2.87 | 112.84 ± 11.82 | ||
| Litsea elongata | 21.05 ± 2.14 | 6.66 ± 0.58 | 44.00 ± 6.56 | 60.66 ± 7.14 | 17.34 ± 1.29 | 54.33 ± 9.54 | ||
| Magnolia soulangeana | 3.86 ± 0.85 | 0 | 2.00 ± 1.00 | 2.00 ± 1.00 | 16.34 ± 1.61 | 98.67 ± 9.24 | ||
| Koelreuteria bipinnat | 25.89 ± 2.10 | 7.00 ± 1.00 | 6.33 ± 1.15 | 13.33 ± 2.15 | 10.78 ± 0.75 | 192.47 ± 17.44 | ||
| Coniferous | Cunninghamia lanceolata | 15.18 ± 1.87 | 0 | 0 | 0 | 14.21 ± 0.85 | 87.33 ± 6.87 | |
| Pinus massoniana | 16.18 ± 2.54 | 0 | 0 | 0 | 13.47 ± 1.98 | 32.33 ± 5.24 | ||
| Beijing | Broadleaf | Broussonetia papyrifera | 19.25 ± 1.59 | 25.21 ± 2.30 | 46.20 ± 6.98 | 71.41 ± 9.28 | - | - |
| Ginkgo biloba | 9.23 ± 1.23 | 0 | 0 | 0 | 18.52 ± 1.07 | 20.00 ± 3.98 | ||
| Platanus orientalis | 16.25 ± 2.05 | 0 | 2.58 ± 0.62 | 2.58 ± 0.62 | 38.36 ± 3.02 | 80.12 ± 6.26 | ||
| Magnolia soulangeana | 4.03 ± 1.15 | 0 | 2.02 ± 0.96 | 2.02 ± 0.96 | 18.74 ± 1.61 | 100.36 ± 10.23 | ||
| Populus tomentosa | 15.64 ± 1.83 | 7.86 ± 1.85 | 39.33 ± 7.56 | 47.19 ± 9.41 | 20.11 ± 2.07 | 81.53 ± 8.49 | ||
| Fraxinus pennsylvanica | 15.98 ± 1.96 | 0 | 8.67 ± 1.82 | 8.67 ± 1.82 | 16.93 ± 1.76 | 67.87 ± 6.74 | ||
| Sophora japonica | 12.11 ± 1.08 | 0 | 0 | 0 | 15.87 ± 1.69 | 76.84 ± 9.08 | ||
| Coniferous | Platycladus orientalis | 13.28 ± 1.72 | 0 | 0 | 0 | 10.36 ± 1.85 | 41.17 ± 3.48 | |
| Pinus armandii Franch. | 16.57 ± 1.88 | 0 | 0 | 0 | 12.74 ± 2.14 | 35.17 ± 4.72 | ||
| Pinus massoniana | 18.23 ± 2.20 | 0 | 0 | 0 | 14.47 ± 1.56 | 34.26 ± 6.59 |
Note: the bold are the common species in Chongqing and Beijing. GP represents groove proportion, LHa, LHb, and LHt represents leaf hair in front, leaf hair on back, and total leaf hair, respectively
SD represents stomatal density, SS represents stomatal size