Much native vegetation in wetland areas of the world is being lost.
在世界湿地的大多数原生植被丢失。
Though it is di? Cult to grow trees in the saline-alkali soil, the ground cover and wetland vegetation are rich and vary in response to subtle changes in the water table and PH values.
尽管难以在盐碱地里栽种树木，但覆盖地表和湿地的植被异常丰富，随着地下水位和PH值的细微变化而呈现不同的形态。
The Impact of Accidental Oil Spill on Cultivated and Natural Vegetation in a Wetland …
尼日利亚尼日尔河三角洲湿地中石油的意外泄漏对栽培作物和天然植被的影响。
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