The step-piont method was traditionally used to measure the vegetative cover on the land surface.

传统的步点法是一种用来统计和估测地面植被盖度的方法。

Ecological conditions will improve with the increase in land under vegetative cover and reduced soil and water loss.

生态环境也会随着植被面积扩大和水土流失减少而得到改善。

When cultivated and stripped of their dense vegetative cover, soils of the humid tropics quickly lose their fertility.

当将厚密的植被除去并耕种时，潮湿热带地区的土壤就会迅速失去其肥力。

The accuracy of land vegetative cover index rested with the accuracy of image classification, but had no direct relations with total classification accuracy.

土地植被覆盖指数的准确度取决于图像分类准确度，但与分类总准确度没有直接关系。

The scenic spot density is higher than that of the city, and the vegetative cover and the waterfall have the biggest effect to the distribution of atmospheric anion.

风景区的负离子浓度高于城区；植被状况与瀑布对负离子的空间分布影响最大。