Based on the analysis of variance(ANOVA) and cluster analysis on sowing quality of seeds of 5 Norway spruce provenances and 10 narrow crowned pendula Norway spruce families introduced from Finland,the results showed that their seed purity was more than 98%.
通过对引进的芬兰挪威云杉5个种源和窄冠垂枝挪威云杉10个家系种子播种品质的方差分析和聚类分析研究表明,挪威云杉种源和窄冠垂枝挪威云杉家系种子净度达98%以上。
To quantify the effect of site on temperature dependence of net C-mineralization and N2O-N emis- sions, three adjacent forest floors under beech, Norway spruce and mixed species stands were investigated at Solling forest, Germany, by an incubation experiment for three months.
为了量化立地对净碳矿化和N_2O氮释放温度依赖性的影响,在德国的索尔森林,调查了三毛举林,挪威云杉和混合林三种相邻的地被物,并进行了3个月不同温度的培养试验。
To quantify the effect of temperature on biochemical processes controlling the rate of OH layer development three adjacent forest floors under beech, Norway spruce and mixed species stands were investigated at Solling .
为了探求温度对生物化学过程的数量化影响,连续三个月在德国索尔林场,初步调查三种林(三毛榉,挪威云杉和混合树种)地表腐殖质变化率。
