This is not harmful biologically because many freshwater plants and animals (perhaps half of all species) are well adapted to periods of drought, and worldwide so-called 'temporary ponds' (ponds which usually dry out once a year) are an important natural habitat type.
這在生物學上是無害的，因為許多淡水植物和動物（可能是所有物種的一半）很好地適應了乾旱時期，並且全世界所謂的“臨時池塘”（通常每年干燥一次的池塘）是重要的自然棲息地類型。