translation.en: The second thing we can do is take models of plants, construct three-dimensional reconstructions, and from that estimate the canopy size, and then correlate the canopy size to the amount of leaf area on every plant.
translation.zh: 我们能做的第二件事是 给植物建构三维立体图， 从而推算出树冠的尺寸， 然后通过树冠尺寸推算出 每株植物的树叶面积。