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辽宁省现有森林面积5479万亩,森林覆盖率已由过去的23.5％,增加到25.1％,尚有宜林荒山荒地2 400万亩,山多林少,生态不平衡。西部的朝阳、锦州、阜新市的石质、半石质山地约占30—40％,大连市约占50％。这些地区的荒山土质瘠薄,春季干旱,现有的荒山荒坡,绝大部分都是这类石质山和土质瘠薄的阳坡,造林难度越来越大,造林成活率和保存率较低。为提高造林质量,加速绿化,除狠抓了造林技术环节外,针对干旱地区裸根苗不易成活的问题,我省开展了容器育苗和容器苗造林的工作。据统计1985年大连、朝阳、锦州、阜新等4个市共生产了容器(苗)24 135 000个,其中“三北”地区生产了
Liaoning Province has an existing forest area of 54.79 million mu and its forest coverage has increased from 23.5% in the past to 25.1%. There are 24 million mu of barren barren hills and valleys in Linyi, with less hill and less forest and an imbalanced ecology. Western Chaoyang, Jinzhou, Fuxin City stone, semi-stony mountain about 30-40%, about 50% of Dalian. The barren hills in these areas are of poor soil conditions and spring drought. The existing barren hills and slopes are dominated by such stony mountains and infertile barren slopes. The afforestation is more and more difficult, and the afforestation survival rate and preservation rate are lower. In order to improve the quality of afforestation and accelerate greening, in addition to paying close attention to the technical aspects of afforestation, aiming at the problem that naked root seedling is not easy to survive in arid areas, our province has carried out the work of container nursery and container seedling afforestation. According to statistics, a total of 24,135,000 containers (seedlings) were produced in four cities including Dalian, Chaoyang, Jinzhou and Fuxin in 1985, of which “Three Norths” produced