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研究了高黎贡山东坡不同海拔高度的自然林、不同海拔高度和人为干扰强度的集体林、不同权属森林和不同土地利用类型土壤微生物数量及某些生化特性.结果表明,在高黎贡山上半部,自然林随海拔降低,土壤微生物数量及活性升高.而下半部,集体林随海拔降低,人为干扰强度和频率增加,土壤微生物数量和活性降低;森林权属从国有集体个人,土壤微生物数量及活性降低;森林被纯林替代后,土壤微生物数量及活性迅速降低,但耕作通常更有利于微生物繁殖.高黎贡山中部(海拔2000m左右)的自然植被下土壤微生物含量丰富且活性较高,但海拔高气温低不利于土壤微生物生长繁殖及进行生物化学变化.另一方面,森林植被的过份砍伐和利用也使土壤微生物数量和活性降至较低水平.
The quantity and some biochemical characteristics of the soil microorganisms in different types of forest and different types of collective forests, natural forests with different altitudes at the east slope of Gaoligong Mountain, different altitudes and anthropogenic disturbances were studied. The results showed that in the upper half of the Gaoligong Mountains, natural forests decreased with altitude, and the quantity and activity of soil microbes increased. In the lower part, the collective forests decreased with the altitude, anthropogenic disturbance intensity and frequency increased, the quantity and activity of soil microbes decreased; the ownership of the forest was reduced from the state-collectives to the individuals, the quantity and activity of soil microbes decreased; The number and activity of microorganisms rapidly decreases, but farming is usually more conducive to microbial growth. The natural vegetation in the central part of the Gaoligongshan Mountains (about 2000m above sea level) is rich in soil microorganisms and has high activity. However, low altitude and low temperatures are not conducive to soil microbial growth and biochemical changes. On the other hand, excessive deforestation and utilization of forest vegetation also reduced the amount and activity of soil microbes to a lower level.