一、前言普乐堡林场地处桓仁县城南部与宽甸县接壤。林分类型比较复杂,立地条件变化很大,除土石坡外,“瓜地”占的比例也比较大。全场总面积80212亩,其中少土跳石塘为1.8万余亩,占总面积的22％。对这些少土跳石塘如何经营利用,给我们提出了新的课题。这是林业生产的一项带有限本性的建设事业,是扩大森林资源,增加森林覆盖率,提高森林生长量的有效途径。也是改变 I. Introduction Plebock forest farm is located in the southern Huanren County and Kuandian County bordering. Stand type is more complex, site conditions vary greatly, in addition to earth slope, “melon” accounted for a larger proportion. The audience a total area of ​​80212 acres, of which less earth turtles for more than 1.8 acres, accounting for 22% of the total area. How to operate and utilize these small earth-quarry stone ponds gives us a new topic. This is a limited construction of forestry production, an effective way to expand forest resources, increase forest coverage and increase forest growth. It is also changing