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赤峰市元宝山区元宝山林场位于赤峰市南部.年平均气温6.4℃,极端最高气温42.5℃,极端最低气温-31.4℃,≥10℃以上的积温3100℃,无霜期140天,4—9月日照时数为1500—1600小时.年平均降雨量370毫米,蒸发量1800毫米,相对湿度为48—55％.营造北京杨的造林地在老哈河北岸的二级阶地上,土壤为冲积沙壤土,土层厚度1.5—2米,地下水位2—2.5米,PH值8.0,有机质含量不超过0.5％。1977年雨季前用拖拉机进行一次25—30厘米的
Yuanbaoshan District, Chifeng Yuanbaoshan Forest Farm is located in the south of Chifeng City. The annual average temperature of 6.4 ℃, extreme maximum temperature of 42.5 ℃, extreme minimum temperature of -31.4 ℃, ≥ 10 ℃ above the accumulated temperature of 3100 ℃, frost-free period of 140 days, 4-9 months of sunshine The number of 1500-1600 hours. The average annual rainfall of 370 mm, evaporation 1800 mm, relative humidity of 48-55% .Construction of Beijing Yang Afforestation in the northern shore of Laohe River on the second terrace, the soil is alluvial sandy loam, soil Layer thickness of 1.5-2 meters, 2-2.5 meters of groundwater, PH value 8.0, organic matter content does not exceed 0.5%. Before the rainy season in 1977 with a tractor 25-30 cm