如这幅来自马达加斯加的图片显示，植树有助于保护水域。
Tree planting, as in this image from Madagascar, helps protect watersheds.
目的是维持良好的水上交通秩序，以确保船舶流能够迅速、畅通和安全的运行，防止和减少船舶交通事故以及保护水域环境免遭船舶污染。
The aim is to keep Marine traffic order, ensure the security of the vessels, avoid and deduce vessel traffic accidents and protect Marine circumstance against the vessel pollution.
自1971年来，鳄鱼一直受到联邦法律的保护，它们在澳大利亚热带水域的数目一直稳步增长。
Crocodiles have been protected by federal law since 1971, and their Numbers in Australia's tropical waters have steadily grown.
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