Table 2 Averages and slopes of spring Tmin, SDS, and growing season NDVI over the 1999–2013 years (see text for details) (* = significant slope, P < 0.05; ** = highly significant slope, P < 0.01)
From: Impacts of climate change on the gross primary production of Italian forests
Forest type | Spring Tmin | SDS | NDVI | |||
|---|---|---|---|---|---|---|
Mean (°C) | Slope (°C year−1) | Mean (DOY) | Slope (DOY year−1) | Mean | Slope (NDVI year−1) | |
Macchia | 8.4 | − 0.0055 | 143 | 2.950** | 0.680 | 0.0068** |
Plain/hilly conifers | 7.8 | 0.0325 | 148 | 1.709* | 0.683 | 0.0051** |
Evergreen oaks | 7.7 | 0.0151 | 150 | 2.023* | 0.755 | 0.0048** |
Deciduous oaks | 5.5 | 0.0089 | 171 | 1.011 | 0.772 | 0.0036** |
Chestnut | 5.2 | 0.0297 | 174 | 0.037 | 0.793 | 0.0024** |
Beech | 3.2 | 0.0178 | 186 | 0.767 | 0.780 | 0.0032** |
Mountain conifers | 0.1 | 0.0036 | 197 | 0.701 | 0.706 | 0.0038** |