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围场县地处河北省最北部,总面积1383万亩,其中林业用地714万亩,占总面积的51.6%。大陆性季风型高原山地气候,海拔750-2041米,降水量偏低,气候寒冷,无霜期短,又十年九旱,给林业生产造成不利的条件,特别是干旱山地阳坡,绿化更是困难。在125万亩阳坡半阳坡宜林荒山中,严重干旱的阳坡面积约10万亩左右。近年来,虽然对绿化阳坡采取了很多措施,取得了一定的成绩,但采取直播的方法,收效甚慢,植苗造林成活率更低。如四合永镇的雷字村,1976年以来,在小老虎沟门阳坡油松植苗造林连续多年未成
Weichang County is located in the northernmost part of Hebei Province, with a total area of 13.83 million mu, of which 7.14 million mu is for forestry, accounting for 51.6% of the total area. Continental monsoonal plateau mountain climate, elevation 750-2041 meters, the precipitation is low, the climate is cold, frost-free period is short, but also nine years of drought, unfavorable conditions for the forestry production, especially the dry slopes of mountains, greening is more difficult . In the 12500 acres of sunny slopes half slope Yangliuang barren hills, arid area of about 10 acres of sunny slopes. In recent years, although a lot of measures have been taken on greening sunny slopes, some achievements have been made. However, the method of live broadcast has been ineffective and the survival rate of plantation and afforestation is even lower. Such as Sihe Yongzhen Lei word village, since 1976, the small Laohugou Mengyang pine plantation for many years failed to success