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一、前言易县阳谷庄公社是河北省太行山北——中段的低山丘陵与中山交界处的低山丘陵区。全公社北高南低山峦起伏,一条人字型河谷纵贯其间,山地、丘陵、沟谷、川滩相间排列。北部地势较高,坡陡谷窄,高程以500米左右为多,最高峰达1080米;中部丘陵海拔150——300米,坡度25——30°左右;南部为疏缓低丘,沟谷宽展,海拔180——100米。年均温度12℃,最高温度36.3℃,最低温度-18.4℃,年雨量523——761毫米,
I. Introduction Yixian Yanggu Zhuang commune is Hebei Province, Taihang Mountains - the middle of the hilly and Zhongshan junction of hilly areas. The commune North High South low mountain range, a herringbone valley runs through the meantime, mountains, hills, valleys, Chuan Tan arranged in white. The northern terrain is high, narrow steep valley, elevation of about 500 meters, the highest peak of 1080 meters; central hilly 150 - 300 meters above sea level, gradient 25 - 30 °; southern slope of the hilly, gully width Exhibition, elevation 180--100 meters. The average annual temperature of 12 ℃, the highest temperature of 36.3 ℃, the lowest temperature of -18.4 ℃, annual rainfall 523--761 mm,