当前林业建设上首要任务,是针对着我国森林资源不足,而社会主义建设需要大量木材和其他林产品,因此急应选择生长快速,出产量多的树种,来普遍推广。杨树是材质好、用途广、繁殖容易的速生丰产树种,可成片造林,尤宜于四旁植树,特别是水旁,根据最近的速生丰产计划:杨树五年生亩产木材100—200立方公尺。 At present, the most important task in forestry construction is to address the insufficiency of forest resources in our country and the need for a large amount of timber and other forest products in socialist construction. Therefore, it is urgent to choose trees that grow fast and produce large quantities to promote them universally. Poplar is a good-quality, versatile and easy-to-breed fast-growing high yielding tree species that can be planted afforesting, especially suitable for planting trees all around, especially around the water. According to the recent fast-growing and high-yielding plan: poplar five- meter.