论文部分内容阅读
红松以其材质优良,林副产品丰富而驰名中外。近年来受疱锈病危害较重,已知辽宁、吉林省的不少地区和黑龙江省的桦川、勃利、鸡东、林口、孟家岗、依兰、南叉、横道河子、上甘岭以及伊春、带岭等地都有不同程度的危害。在辽宁、黑龙江的某些林区,发病率最高可达70%以上,不少人工红松林即将毁于该病。1977、1978年在黑龙江省林口林业局青山经营所进行的1万亩人工红松林的病害普查,发病面积约占1/3(3500亩)。且病害多发生在林缘、道边以及潮湿的缓坡地带,病树多
Korean pine with its excellent quality, rich forest by-products well-known at home and abroad. In recent years, it has been harmed by blister rust. It is known that many areas in Liaoning and Jilin Province and Huachuan, Boli, Jidong, Linkou, Mengjiagang in Heilongjiang Province, Yilan, Nanchuan, Hengdaohezi, Shangganling and Yichun , With Ridge and other places have varying degrees of harm. In some forest areas of Liaoning and Heilongjiang, the incidence rate can reach 70% or more, and many artificial Korean pine forests are about to be destroyed in the disease. In 1977 and 1978, the disease survey of 1 million mu of artificial Korean pine forest was conducted in the management of Qingshan Mountain in Linkou Forestry Bureau of Heilongjiang Province. The disease area accounted for about 1/3 (3500 mu). And the disease occurred in the forest edge, Road edge and damp gentle slope zone, more trees