Table 1. Climatic factors during the growing seasons of summer and winter grapes in Nanning in 2016a.
Year | Active-Tb (°C) | Sunlight-Dc (h) | Raind (mm) | |||
---|---|---|---|---|---|---|
Summer | Winter | Summer | Winter | Summer | Winter | |
2016 | 3274.6 | 3551.1 | 574.4 | 779.6 | 249.2 | 34.4 |
Average-30e | 3242.4 | 3486.1 | 478.4 | 785.6 | 207.1 | 24.5 |
a Data from the Nanning Meteorological Administration.
b Active accumulated temperature during the grape growing seasons, calculated as T = ∑ti (ti ≥ 10°C); ti is the average daily temperature from February to June for the summer crop and from August to December for the winter crop.
c Sunshine duration during the grape growing seasons calculated by adding the sunshine hours from February to June for the summer crop and from August to December for the winter crop.
d Average monthly rainfall. Values in June for the summer crop and December for the winter crop.
e Average of 30 years (from 1971 to 2000).