Table 2. Mean (±SE), stable carbon isotope composition (‰), and isotopic discrimination (Δ) of leaves (n = 5 per aspect) of trees from three Chinese localities.
| Leaf morphotype
|
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|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sun
|
Shade
|
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| Locality | Aspect North | South | East | West | Mean | Mean Δ | Aspect North | South | East | West | Mean | Mean Δ |
| Lanzhou | -24.8±0.1 | -26.4±0.2 | -28.4±0.2 | -26.7±0.1 | -26.6±0.2 | 18.5±0.2 | -20.6±0.1 | -25.3±0.1 | -27.1±0.1 | -25.3±0.1 | -24.6±0.1 | 16.4±0.1 |
| Beijing | -29.1±0.3 | -27.3±0.1 | -29.3±0.1 | -27.1±0.3 | -28.4±0.2 | 20.4±0.2 | -29.0±0.2 | -27.2±0.2 | -29.3±0.1 | -27.1±0.1 | -28.2±0.2 | 20.1±0.2 |
| Nanjing | -29.3±0.2 | -28.5±0.1 | -29.3±0.1 | -30.2±0.1 | -29.3±0.1 | 21.4±0.1 | -29.6±0.1 | -29.8±0.1 | -30.0±0.1 | -30.4±0.1 | -29.9±0.1 | 22.0±0.1 |
See Materials and Methods for calculation details