And this is called the leaf area index.

这被称作是“叶面积指数”。

They also measured the leaf area — the total being carried each day by the ants — 11 square metres.

他们还计算了被蚂蚁搬走的叶子的面积——每天约11平方米。

The easy way to think of it is you look at the leaf area.

- 想到它的简单方法是查看叶面积。

In large part because of India's and China's efforts, the worldwide " green leaf area" has increased by 5 percent since the early 2000s.

世界范围内的" 绿叶面积" 自21世纪初期以来增加了5%，这在很大程度上都是印度和中国的功劳。