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一、概况江边林区地处南盘江中游,地理位置介于北纬23°40’—24°26’,东经103°30’—104°之间,海拔850—2300米,坡度都在25°以上。土壤以红壤为主,PH 值在5.5—7.0之间,山坡中上部平缓地段土层深厚、湿润。据林区两个气象站纪录,海拔1785米地区,年平均气温15.8℃,最热月19.8℃,最冷月9℃,年降水量1080毫米,相对湿度76%;海拔993.6米地区,年平均气温19.2℃,最热月24.4℃,最冷月11.2℃,年降水量880毫米,相对湿度74%。全区的
I. Overview The riverside forest area is located in the middle reaches of Nanpanjiang River. The geographical location is between 23 ° 40’-24 ° 26’N and 103 ° 30’-104 ° E with an elevation of 850-2300 meters and a slope of 25 the above. Soil is dominated by red soil, PH value of 5.5-7.0 between the upper part of the slopes of gentle soil deep, moist. According to the record of two meteorological stations in the forest area, the annual average temperature is 15.8 ℃, the hottest month is 19.8 ℃, the coldest month is 9 ℃, the annual rainfall is 1080mm and the relative humidity is 76%. The average annual elevation is 993.6m, Temperature 19.2 ℃, the hottest month 24.4 ℃, the coldest month of 11.2 ℃, the annual rainfall of 880 mm, the relative humidity of 74%. The whole area