辽宁东部山区现有天然次生林约200万公顷,占全省森林面积的50％以上。过去对天然次生林的经营都是从传统的经营观念出发,以提高木材产量为主要目的,忽视了森林的多种效能以及多种资源的利用价值,森林的潜能没有得到充分地发挥。从1986年开始,我们在新宾进行了立体经营试验,取得了较好的效果。 There are about 2 million hectares of natural secondary forests in eastern Liaoning mountains, accounting for more than 50% of the total forest area in the province. In the past, the management of natural secondary forests proceeded from the traditional business concept, with the main purpose of raising timber output, neglecting the multiple efficiency of forests and the utilization value of various resources, and the potential of forests was not fully realized. Since 1986, we conducted a three-dimensional operation test in Xinbin and achieved good results.