江西九连山常绿阔叶林区气候资源

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在江西九连山常绿阔叶林区海拔约610m 高度的林外气象观测场连续进行了15a、1982~1996)的观测。年平均值气温16.7℃,降水量1954.6mm。相对湿度85%,水面蒸发(小型)836.9mm。年降水量的年际变化较大为1502.1~2469.3mm。月降水量的年际变化也较大。观测结果表明,这里四季分明,气温极端最高37℃,极端最低-7.4℃。1a 中相对湿度均较高.最低月平均77%。雨季旱季明显,2月~9月为雨季,月平均降水量最低147.9mm;10月~1月为旱季,月平均降水量最高为70.7mm。与林外比较,林内气温稍低,特别是春、夏季。气温日较差小,年较差稍小。地温也低于林外,特别是夏季,相对湿度则显著高于林外。 The observational field outside the elevation of about 610 m at the evergreen broad-leaved forest in Jiulianshan of Jiangxi Province was continuously observed for 15 years from 1982 to 1996. The annual average temperature of 16.7 ℃, precipitation 1954.6mm. Relative humidity 85%, surface evaporation (small) 836.9mm. The interannual variation of annual precipitation is 1502.1 ~ 2469.3mm. The monthly variation of monthly precipitation is also larger. Observations show that there are four seasons here, the extreme temperature is the highest 37 ℃, the lowest extreme -7.4 ℃. The relative humidity in 1a was higher, with the lowest monthly average of 77%. The rainy season is obvious in the dry season, February to September is the rainy season, the monthly average rainfall is the lowest 147.9mm; October to January is the dry season, the monthly average rainfall is up to 70.7mm. Compared with the forest, the forest temperature is slightly lower, especially in spring and summer. The temperature difference is small, the annual difference is slightly smaller. Ground temperature is also lower than the forest, especially in summer, the relative humidity is significantly higher than the outside of the forest.
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