Tree density in the forest decreased with the increases of heightclass and diameter class, whereas species abundance did not increase.
栎类次生林乔木的密度随高度级、径级的增加而递减,但树种丰富度却不随树木的密度增加而增加。
2
Both the Numbers of tree species and tree density decreased as heightclass or diameter class increased, fitting both negative exponential and negative power equations.
树种数和树木的密度都随高度级、径级的增加而呈负指数或负幂函数递减。
3
But sushi, now deemed the height of sophistication, is becoming de rigueur for the capital's middle class.