massive planting of trees 种植大量树木
To feed the larger population, humans need to obtain arable land, so there is a massive clearing of trees.
人类为了养活比以前更多的人口，需要获得可耕地，因此大量砍伐树木。
The defoliation of millions of acres of trees by massive infestations of gypsy moth caterpillars is a recurring phenomenon in the northeastern United States.
在美国东北部，舞毒蛾毛虫的大规模侵扰导致数百万英亩的树木落叶，这是一个反复出现的现象。
A massive oak claims its ground for 200 years or more, outcompeting all other would-be canopy trees by casting a dense shade and drawing up any free water in the soil.
200年或更久的时间里，一棵巨大的橡树占据了它的土地，投下浓密的树荫，吸收土壤中所有自由水分，打败了所有其他可能成为树冠的树木。
应用推荐