Canada contains some of the very last untouched coniferforest in the world.
加拿大包含一些非常原始针叶林去年在世界上。
2
And under coniferforest, the air-anion concentration and ability of air was higher than broadleaf forest.
而且针叶林下的空气负离子浓度和空气质量要好于阔叶林。
3
In the coniferforest communities, the conifer pollen percentages are more than 60%, broadleaf are less than 10% while shrubs and herbs are less than 30%.