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1 三峡地区的气候特征三峡地区介于北纬28°09′～32°12′之间,属于亚热带季风性湿润气候。光热比较充足,降水丰沛,年平均气温17.5℃左右,年平均降水量1250mm 左右,水热配合良好。四季变化比较明显,无霜期与生长期较长,空气相对湿度较高,日照时数偏少,雾日较多。旱涝等气候灾害威胁较大。由于受复杂地形的影响,形成不少小气候环境,河谷冬暖与山地垂直气候特征
1 CLIMATE CHARACTERISTICS IN THE THREE GORGES REGION The Three Gorges area is between 28 ° 09’and 32 ° 12’N, belonging to a subtropical monsoon humid climate. Light and heat more abundant, abundant rainfall, the annual average temperature of 17.5 ℃, the average annual rainfall of about 1250mm, with good heat and water. Four seasons change more obvious, frost-free period and growth period is longer, the relative humidity of the air is higher, the number of sunshine hours is less, more fog days. Climate hazards such as droughts and floods are more threatening. Due to the influence of complex topography, a lot of microclimate environment, vertical warm and valley climate of the valley