1·Shrubs are increasing in the "tundra".
“苔原”上的灌木越来越多。
2·Frozen dog dirt stipples the tundra of the golf course.
冻成冰块的狗屎点缀着高尔夫球场的苔原。
3·Above the tree line there is a zone that is generally called alpine tundra.
林木线上方有一个区域，通常被称为高山苔原。
4·The transition from forest to treeless tundra on a mountain slope is often a dramatic one.
从森林到山坡上没有树木的苔原的过渡通常会十分突然和明显。
5·I mean maybe the shrubs will be abundant for a few years, and then it'll change back to tundra.
我的意思是，也许在未来几年里，这里的灌木会很充足，然后它就会变回苔原。