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1 河南省的基本情况河南省地处黄河中、下游,华北大平原的南端,东连山东、安徽、江苏,南靠湖北,西邻陕西,北接山西、河北,总土地面积16.7万km2,其中山区丘陵面积7.4万km2,占全省土地面积的44.3%,平原与洼地面积9.3万km2,占全省土地面积的55.7%。跨我国北亚热带与暖温带两个气候带,具有南北过渡地区的特点。年均温12～15℃,年降水量600～1 300 mm,≥10℃活动积温4 000～5 000℃,无霜期190～230天,充沛的光、热、水资源为我省的林业发展提供了极为有利的条件。
1 The basic situation of Henan Province Henan Province is located in the middle and lower reaches of the Yellow River, the southern tip of the Great Plains of North China, east of Shandong, Anhui and Jiangsu, south of Hubei Province, west of Shaanxi, north of Shanxi and Hebei, the total land area of 167000 km2, Among them, the hilly area in the mountain area is 74,000 km2, accounting for 44.3% of the total land area in the province, with an area of 93,000 km2 in plain and depression, accounting for 55.7% of the total land area in the province. Across our northern subtropical and warm temperate two climatic zones, with the characteristics of the North-South transition region. Annual average temperature 12 ~ 15 ℃, annual rainfall 600 ~ 1 300 mm, ≥ 10 ℃ active accumulated temperature 4 000 ~ 5 000 ℃, frost-free period 190 ~ 230 days, plenty of light, heat and water resources for the province’s forestry development to provide Very favorable conditions.