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长白山林区素称红松之乡,每年向国家贡献的红松木材,占有一定的比例。为了保持红松的永续利用,建国三十多年来,在党的林业方针政策指引下,各国营林业局和各县(市)林业部门都大造了红松人工林。到一九七五年为止,长白山林区共有红松人工林面积二十一万五千五百四十二亩。而且生长繁茂、茁壮、非常良好。据调查二十三年生的红松人工纯林,每公顷蓄积量已达一百四十八立方米。但是近几年来,却发生了大量的病虫害。为了摸索病虫害的情况,给培育红松人工林打下基础,我们分别在一九七九、一九八0和一九八一
Changbai Mountain Forest known as the hometown of Korean pine, pine contribute to the country each year, occupy a certain percentage. In order to maintain the sustainable use of Korean pine, since the founding of the People’s Republic of China for more than 30 years, under the guidance of the party’s forestry principles and policies, various state-owned forestry bureaus and forestry departments of all counties (cities) have made Korean pine plantations. By 1975, there will be 215,542 acres of Korean pine plantation in Changbai Mountain. And growing, thriving, very good. According to a survey of 23-year-old Pinus koraiensis plantations, the volume per hectare has reached 148 cubic meters. However, a great deal of pests and diseases have occurred in recent years. In order to explore the situation of pests and diseases, and to lay the foundation for the cultivation of Korean pine plantations, we respectively in 1979, 180 and 1981