水源涵养林是具有特殊意义的防护林种，具有很好的涵养水源、保持水土、净化水质等功能。
Water conservation forest is a special kind of protection forests. It can protect water resources, control soil erosion, purify water quality and so on.
为森林净化水质的功能，提供了依据。
The mechanism and benefits of forest purifying water were discussed in the paper.
水生植物是构成水景的重要要素之一，具有美化水体和净化水质等功能。
Aquatic plant is an important element of the waterscape, and it plays important roles in the landscaping and water purification.
水生植物是构成水景的重要要素之一，具有美化水体和净化水质等功能。
Aquatic plant is an important element of the waterscape, and it plays important roles in the landscaping and water purification.
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