植被覆盖中等的土壤持水能力允许消耗值一般为50%，而植物覆盖率低的土壤持水能力允许消耗值通过为75%。
A medium-value turf is typically managed at 50%AD, whereas a low-value turf could have an AD of 75% of the soil reservoir capacity.
涞源县植被属华北植物区系，现有植被大部分为灌草丛，其次是天然次生林和人工林，森林覆盖率为18.24%。
Vegetation is Laiyuan County of North China flora, the majority of existing vegetation for irrigation in the bushes, followed by natural secondary forest and plantation, forest coverage is 18.24%.
市民应该随处可以见到河流、湖泊、瀑布、温泉、小溪，随处可以见到各种植物和野生动物，森林覆盖率达90%以上。
People everywhere should see rivers, lakes, waterfalls, hot springs, streams, everywhere can meet all kinds of plants and wildlife, forest coverage rate of more than 90%.
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