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七月的大地,是绿色的世界。然而,商都县八股地林场的两万多亩榆树林,却是另外一种样子:有林不闻鸟鸣,有草不见羊群,一片“夏天的树,冬天的景”。 1981年,刚分配到商都县林业局担任森防检疫员的罗青朴,来到八股地林场,看着眼前凄凉的景色,心头一阵阵颤动。经过了解,他弄清了这片处在风蚀干旱地带的榆树林,立地条件十分恶劣,年蒸发量是降雨量的16倍。干旱使各种害虫纷纷“出笼”,最为猖獗的是榆尺蠖。1978年至
The land of July is a green world. However, more than 20,000 mu of elm trees in the forest farm in Qiucai County of Shang County are another example: there are forests that do not hear birds and birds, but there are no flocks of sheep and grass in the trees and the scene of the winter. In 1981, Luo Qingpu, who had just been assigned to the forestry protection and quarantine department of Shangdu County Forestry Bureau, came to the wood farm in Chugoku and watched the desolate scenery in front of him and burst his heart. After understanding, he figured out this piece of elm forests in arid zones of wind erosion, the site conditions are very poor, the annual evaporation is 16 times the rainfall. Drought to a variety of pests have “come out”, the most rampant is Yu-yu 蠖. From 1978 to