杨树生长快、成材早、适应性强,木材用途广,短期可获得大量木材。但是,林农受利益驱使,不断加大造林密度,导致目前林分产量普遍偏低,杨树生产效益明显下降。为提高杨树综合经济效益,通过几年杨树高效立体栽培集成试验和示范推广项目的实施,笔者总结出了杨树高 Poplar grow fast, early timber, adaptability, timber uses wide, short-term access to a large number of wood. However, driven by the interests of forest farmers, increasing planting density, resulting in the current yield is generally low, poplar production efficiency decreased significantly. To improve the comprehensive economic benefits of poplar, through several years of poplar efficient three-dimensional cultivation integrated test and demonstration of the implementation of the project, I summed up poplar