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张北试验区位于河北省西北部的张北县境内,该地区海拔1400～1500m,年均气温3.78℃,无霜期90～100d,年降水399.2mm,属于高寒半干旱生态经济类型区。5～9月份月平均气温为12.1℃～19.2℃,适宜喜凉蔬菜的正常生长,现已逐渐形成全国第五大蔬菜生产基地——夏秋蔬菜生产基地,成为当地农民增收,农业增效的支柱产业。
Zhangbei Experimental Zone is located in Zhangbei County in the northwestern part of Hebei Province. The area is 1400 ~ 1500m above sea level with an average annual temperature of 3.78 ℃, frost-free period of 90 ~ 100d and annual precipitation of 399.2mm, belonging to the alpine semi-arid eco-economic zone. From May to September, the average monthly temperature is 12.1 ℃ ~ 19.2 ℃, which is suitable for the normal growth of hi-cold vegetables. Now it has gradually formed the fifth summer vegetable production base in the country, becoming the pillar of increasing incomes and increasing agricultural efficiency of local peasants industry.