论文部分内容阅读
湖南省岳阳县1987年人工造林面积突破12万亩。1985—1988年4年中,人工造林近40万亩,基本实现了全县荒山的整体绿化。同时,成活率和保存率都比较高。根据1987年人工造林检查材料,造林成活率在85%以上的达到70%。而对造林成活率在85%以下
In 1987, the area of artificial afforestation in Yueyang County, Hunan Province, exceeded 120,000 mu. During the four years from 1985 to 1988, nearly 40 million mu of artificial afforestation was completed, basically realizing the afforestation of the barren mountains in the county. At the same time, the survival rate and preservation rate are relatively high. According to 1987 artificial afforestation inspection materials, afforestation survival rate of more than 85% reached 70%. The survival rate of afforestation is below 85%