1·We have data about South Florida's current landscape and the plant cover.
我们有关于南佛罗里达当前地形和植物覆盖的数据。
2·Planting and making forests is to raise the earth's vegetation plant cover rate.
我国东南山区植被覆盖率高，进行土壤遥感调查困难重重。
3·Plant cover is one of the most important sign of oasis ecological environment change.
植被覆盖度是绿洲生态环境变化的最重要标志之一。
4·Even the same soil type, the properties of organic matter were different in different plant cover.
同一种土壤，因植被类型不同有机质性质也有差异。
5·Scientists estimate that a desert needs year round plant cover over 20 to 40 percent of its surface.
科学家估计一年之中植物必须覆盖沙漠表面的20%到40%。
6·Life. Scientists estimate that a desert needs year round plant cover over 20 to 40 percent of its surface.
科学家估计一年之中植物必须覆盖沙漠表面的20%到40%。
7·There is evidence indicating that reduction of plant cover reduces the availability of organic particles in the atmosphere.
有证据表明，植被减少也减少了大气中有机粒子的存在。
8·The importance of units of the plant cover broader than the phytocoenose for classification is acknowledged by Soviet geobotanists.
认识到，比植物群落较广泛的植被单位对于分类的重要性。
9·Plant cover was signifisantly changed after improved. Total cover was increased from 42.5 to 83.5%. Plant community was also changed.
植被盖度由原来的42.5%增加到83.5%，将蒿属植物为建群种的群落变为沙打旺—野艾蒿—万年蓬组成的群落。
10·The desert ecosystems with rare plant cover are still used for grazing and other purposes in China because of the population pressure.
我国由于人口压力大，覆盖很少植被的沙漠生态系统仍然被用于放牧或其他目的。