油页岩废渣因酸度高，养分含量低，并存在一定程度的铝毒和重金属污染等，使得植物很难在其中正常生长发育。
Because of the high acidity, low nutrients content, aluminum toxicity and potential heavy metals pollution, oil shale waste slag has negative effects on the normal growth of plants.
在草地植物养分的分析中，磷的含量在早期放牧小区内表现较高，粗灰分和无氮浸出物表现较低。
The results of plant nutrients analysis showed that phosphorous was higher in the district of grazing in early time, crude ash and nitrogen-free extract were lower.
由于侵蚀过程的影响，植物篱带之上、篱带中养分含量高于篱带下。
Due to the impact on erosion, the nutrient content upside and at the hedgerows was higher than that downside the hedgerows in general.
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