例如，外来植物的入侵可能会改变落叶的数量，从而改变对土壤的营养贡献。
For example, an invading nonnative plant could alter the quantity of leaf litter production, which would alter nutrient contributions to the soil.
例如，地球臭氧层的破坏会使紫外线伤害植物和动物，从而导致普遍的贫瘠进程。
The destruction of Earth's ozone layer, for example, could contribute to the general process of impoverishment by allowing ultra-violet rays to harm plants and animals.
例如，遮荫种植的植物中，蛋白质含量会远低于空地种植的植物。
The protein content of shade-grown vegetation, for example, was much lower than that for plants grown in clearings.
应用推荐