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1684年我们进行了高海拔采伐迹地秋更与1985年春更对比试验。 一、试验地自然概况:试验地设在麻孜林场崩龙沟19林号,海拔3750米,阴坡,坡度28度。伐前林型为藓类一冷、云杉林。于1977年皆伐,1982年横山水平带状清林,灌木层主要有忍冬、茶藨子,峨眉蔷薇、红刺、白刺,平均高0.8米,盖度35％。草本主要有柳叶兰、蒿草、莎草,平均高40厘米,盖度60％。活地被物主要为苔藓,土壤系棕色森林土.年平均气温3.7℃,平均相对湿度62％,年降水量896.6厘米,降水集中在6—9月。
In 1684 we carried out more contrasting experiments between the autumn seasons of high altitude deforestation and the spring of 1985. First, the experimental nature of the general test: Experimental site located in Mazili Dumping ditch 19 forest, elevation 3750 meters, shady slope, slope 28 degrees. Pre-cutting forest type is a moss cold, spruce forest. Clearcutting in 1977, horizontal Hengshan Hengshan in 1982, the shrub layer are mainly honeysuckle, tea raccoon, rose Emei, red thorn, white thorn, with an average height of 0.8 m, 35% coverage. The main herbs willow orchid, wormwood, sedge, an average of 40 cm, 60% coverage. Living mainly by the material is mainly moss, soil brown forest soil. The annual average temperature of 3.7 ℃, the average relative humidity of 62%, annual rainfall of 896.6 cm, precipitation concentrated in June-September.