"Land-based pollution sources" refers to the sites or facilities that discharge from the land into the sea pollutants which cause or may cause Marine environment pollution.

陆地污染源(简称陆源)，是指从陆地向海域排放污染物，造成或者可能造成海洋环境污染的场所、设施等。

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Certain water areas and land-based areas near the intakes of domestic and drinking surface water sources may be delineated as the first-grade protection zones.

在生活饮用水地表水源一级保护区外，可以划定一定的水域和陆域为其他等级保护区。

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The project looks at four main threats to coral reefs -- marine-based threats, over-fishing, coastal development, and land-based sources of pollution -- in six main coral reef regions.

CNN: Could online maps save coral reefs?

Experts gave an overview of current threats and challenges, including declining coral reefs and acidification (Scott Doney), sea level rise (Joe Appiott), coastal erosion, land-based sources of marine pollution, and overfishing (Brittany Baschuk).

UNESCO: Social and Human Sciences

LOST's provisions on prevention of marine pollution from land-based sources could easily serve as a convenient peg on which to hang the greenhouse gas-regulating Kyoto Protocol, even though that treaty has also never been ratified.

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