在文山州,几乎都是利用山地苗圃培育杉树苗木,而且都选择生地开垦作墒育苗,有少数地区则重新用来造林或种旱地作物。一九八二年四月,我们在文山县平坝区底泥乡协助群众进行杉树育苗中,在六十余亩苗木已出圃的苗圃地上,以1.5米的株行距,留下部分苗木,进行留苗育林试验。一年多后,于一九八四年十一月实地观测,留下的杉木 In Wenshan Prefecture, almost all of them use mountain nurseries to cultivate fir seedlings, and all choose to reclaim land for cultivation. In a few areas, they are reused for afforestation or dry land crops. In April 1982, we helped the masses to plant cedar trees at the end muddy village of Pingba District in Wenshan County. When more than 60 acres of nursery plants had been nursed out of nurseries, we left a part of nursery stock at a spacing of 1.5 meters. To leave Miao plantation test. More than a year later, the field was observed in November 1984 to leave the fir