Test of introduction to Populus deltoides and its development and utilization.

Populus deltoides is completely adapted to the climatic conditions in Jingning, with the characteristics of cold tolerance and rapid growth.The bred general timber forest can be mainly cut after 10 years;the bred mushroom forest can be felled after 3-4 years.The present research showed that, Lentinus edodes cultured with saw dust of Populus deltoides could increase production of and Auricularia auricula 6.9% and 7.7%, respectively,compared with general mixed sawdust. Jingning is the main production area of Lentinus edodes and Auricularia auricula .Therefore, it is significant for development and utilization of mushroom forest and Auricula ria auricula forest to introduce to Populus deltoides and popularize management techniques for short-rotation double-utilization forest.