spruce-fir forest 中文意思是什麼
spruce-fir forest
解釋
雲杉-
But so far, there have not report about forest soil microbe and soil enzymatic activity in westen sichuan. the study ' s object is bitch forest. spruce forest, fir forest, chrysanthemum alp, willow community and two couch grass, so the research of the soil microorganisma, soil enzymatic activity in the subalpine coniferous forests in western sichuan is significant to china. the result shows that : 1. in the soil, the relativity of the soil microbial puantity is very prominence, the relation with the quantity of the soil microorganism is that : bacillus > actinomyceto > fungi ; the amount of the microorganism of physiological group sequence ranging from high to low is : aminate > bacteriumazotobacter > denitrify bacterium > nitrobacteria > cellulose decomposing bacteria. under the different vegetable community, the microbial quantity is that : s5 > s7 > s6 > s1 > s2 > s4 > s3
其中，各群落中土壤微生物總數以白樺純林（ s5 ）群落最多，每克干土中的含菌量達66 . 13 10 ~ 6個；其次是冷杉針葉林（ s7 ）群落，每克干土中的含菌量達43 . 41 10 ~ 6個：第三是雲杉針葉林（ s6 ）群落，每克干土中的含菌量達42 . 85 10 ~ 6個；第四是繡線菊-茅草群落（ s1 ） ，每克干土中的含菌量達33 . 83 10 ~ 6個；第五是高山柳群落（ s2 ） 、茅草（ s4 ）群落，每克干土中的含菌量分別為33 . 33 10 ~ 6個和33 . 08 10 ~ 6個；第六是茅草群落（ s3 ） ，土壤微生物數量最少每克干土中的含菌量僅為23 . 12 10 ~ 6個。 -
Experimental plots were established for thinning effects on stand and tree growth, tree species composition, species diversity and soil factors etc. in the mixed larch - spruce - fir stands which originated from planted larch pure forest by observations for 12 years after thinning
摘要以15塊人工落葉松純林演化后形成的落葉松雲冷杉混交林為對象，間伐后12年觀測結果，研究間伐對林分和樹木生長、樹種組成、物種多樣性及土壤等因子的影響。
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