ecosystem
Temperature
100-300 meters above sea level, average annual temperature 15°C, above 300 meters above sea level, below 14°C, 7
Weekly iron tea
The average monthly temperature was 28.2°C. The average temperature in January was 2.1°C. The temperature in spring and autumn was cool and mild. The average temperatures in April and October were 15.4°C and 16.7°C, respectively. The average annual frost-free period is 210-220 days, the average initial frost day is November 5th, the final frost day is March 29, the first day of stable adoption of 10°C is April 15, and it ends on November 4-9; ≥0 The accumulated temperature of °C is 5085-5500°C; the accumulated temperature of ≥10°C is 4384-4750°C.
illumination
The annual total solar radiation is 506.18 kJ/cm2, and the solar radiation during the daily average temperature ≥0°C is 369.69 kJ/cm2, which accounts for 73% of the total annual radiation. The annual sunshine hours are 2000-2230 hours, the annual sunshine percentage is about 50%, and the light energy resources are relatively abundant.
precipitation
The average annual precipitation is between 1,200 and 1400 millimeters. According to statistics, the average annual rainfall in 25 years is 28.9% in spring and 41.1% in summer, accounting for the fall.
Weekly iron tea
19.4%, 10.6% in winter. The average annual precipitation days are 125.6 days, annual relative humidity is 80%, dryness is 0.8 or less, and it is a wet zone.
soil
The soil type is more complicated. Zhongshan District (inner mountain area) is mainly yellow-brown, ie, yellow-brown and yellow-brown. The parent materials are mostly granite, granite gneiss, and hornblende gneiss. The soil depth is more than 1.5 meters and the content of organic matter is high. Soil fertility and permeability are good, PH 4.8-5.5; outer hilly areas (outside mountainous areas) are dominated by yellow-brown soils derived from the parental system of soil-forming parent materials. Although the soil layer is thick, the cultivation layer is shallow. The texture is heavy, the bottom layer is often impervious to the viscous disc layer, and the fertility and permeability are poor, PH5-6.5; the second is the lesser part along the banks of the river and valleys, mostly alluvial soils, ie sandy loam (Ushatu), soil Deep layer, high fertility, good permeability, generally high-yielding tea park.