一、北京杨、加拿大杨、洋槐、臭椿、柳树速生丰产试验林为研究林木速生丰产的综合栽培技术,考察各项技术措施的效果,摸清林木速生丰产规律,在本院培育了速生丰产试验林。全部试验林的研究任务,包括两方面。即(一)速生丰产试验林的培育,(二)林木速生丰产各项技术措施试验。(一)速生丰产试验林的培育: First, Beijing Yang, Poplar, Ailanthus, Ailanthus altissima, Willow Fast-growing test forest In order to study the fast-growing forest yield comprehensive cultivation techniques, study the effect of various technical measures to find out the laws of fast-growing and yielding trees in our hospital to cultivate a fast-growing and high yield test forest. All the experimental forest research tasks, including two aspects. Namely (a) cultivation of fast-growing and high-yielding test forests, and (b) testing of various technical measures for fast-growing and high-yielding trees. (A) Cultivation of fast-growing and high yielding test forest: