<正>研究了美洲黑畅不同无性系对分月扇舟蛾（Clostera anastomosis）体内消化酶和保护酶活性的影响。结果表明。大多数抗性无性系对分月扇舟蛾体内的3种消化酶活性有显著的抑制作用，而94-30、94-12、744等几个感性无性系的3种消化酶的活性比对照有一定的提高；分月扇舟蛾幼虫取食抗性无性系后，体内SOD和CAT酶活性相z,t于对照显著上升。说明这些无性系对分月扇舟蛾的SOD和CAT酶活性有显著的激活作用，而94-30、94-12、74-4等几个感性无性系对这两种酶的活性影响不大。甚至有轻微抑制作用。不同无性系对分月扇舟蛾幼虫POD酶活性的影响无显著相关性。

According to the realsituation of Guizhou province, the main features of forestry sustainable development in Karst area have been deeply analyzed. And the strategies of the foresty sustainable development in Karst area, including the Karst environment improvement, vegetation recovery, rare and endangered plants protection, forest ecotourism development and ecology economic forestry development have been put forward.