塞北的春天,姗姗来迟。虽说七九河开、八九雁来,可这里总是七九河开河不开,八九雁来雁不来。即便是这样,林业工作者却不敢消闲。这当儿,正是他们为春季植树造林做准备的大忙时节。赤峰市城市园林绿化科普学习班刚刚结束,我便趁星期日休息的机会赶到赤峰市林业科普积极分子白乃檀的家里。我知道他是林科所的忙人,既担负着核桃北移的科研任 Saibei spring, late. Although seven or nine rivers open, eight or nine goose, but here is always open seven or nine rivers, eight hundred and ninety-nine geese do not come to Yan. Even so, foresters are afraid to relax. At this moment, it was their busy time preparing for the spring afforestation. Chifeng City landscape science class just ended, I took the opportunity to rest on Sunday arrived Chifeng forestry science activist Bai Nian Tan’s home. I know he is Linke busy, both responsible for the walnut northward shift of scientific research office