新源林场自一九五六年建场至一九六二年,生产规模较小,只采不育。一九六二年开始人工更新,到一九八四年的二十二年间,累计更新造林面积达27,000亩,据一九八四年普查,保存面积5,000亩,保存率仅为18.5％,按一九八四年更新造林费用计算,成本高达842.94元/亩。群众中有一首顺口溜:“春季造林一大片,夏季死去多一半,秋季牧民放牛羊,冬季烧柴人都嫌”。之所以有这样的结果,主要原因是: Xinyuan Forest Farm from 1956 to 1962 until the establishment of a smaller scale of production, only sterile. The artificial regeneration started in 1962 and the accumulated area of ​​afforestation reached 27,000 mu in the 22 years from 1984 to 1984. According to the 1984 census, the preservation area was 5,000 mu and the preservation rate was only 18.5% In 1984, the reforestation fee was calculated at a cost of 842.94 yuan / mu. One of the masses jingles: “a large afforestation in the spring, more than half died in summer, autumn herders put cattle and sheep, winter firewood are suspected.” The reason why there is such a result, the main reason is: