Toucans are found in South and Central America in the canopylayer of the rainforest.
巨嘴鸟在雨林的天篷层的南方和中美洲被发现。
2
Using observational data of the turbulent gradient, exchange characteristics of the momentum in the plant canopylayer (CL) are studied in detail.
使用湍流梯度测试资料，对植物冠层动量交换特征进行了详细研究，结果表明；
3
And when individual trees die due to lightning, insects, fungal attack or other causes, there is generally a second canopylayer waiting in the shade to take over and maintain productivity.