For example, the increasing spread of desertification, land erosion, the extinction of plant and animal species, pollution of Marine and river pollution.

例如，日益蔓延的荒漠化，土地的侵蚀，动植物物种的灭绝，海洋与河流道的污染等问题。

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Bank erosion is a type of land erosion. It can be divided into bank toppling and landslide erosion, bank subsidence erosion, bank gully erosion and bank flood erosion.

岸坡侵蚀是土地侵蚀的一个类型。它进一步又可划分为岸坡崩塌、滑坡侵蚀，岸坡塌陷侵蚀，岸坡沟谷侵蚀和岸坡洪水侵蚀。

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This paper described the series of research, we'd conducted to solve various red soil sloping land erosion problems caused by inappropriate cultivations in south China.

针对南方广大红壤坡地果园因耕作不当而导致的水土流失，开展了系列研究。

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But nature was cruel. By the nineteen twenties, erosion from winds and weather had removed a large part of the land.

VOA: special.2009.10.06

Mangrove forests protect land against erosion from wind, water and storms.

VOA: special.2010.04.20

This remains a very real concern, with much of the world suffering from increasing water scarcity, land erosion, drought intensity, stalled progress on crop productivity, declining groundwater aquifers, over-grazing of pasturelands, tropical deforestation, massive species extinction, over-fishing, and anthropogenic climate-change.

ECONOMIST: Phoenix flying high

Nor do farmers, many of them rock-ribbed Republicans, readily acknowledge that the windbreaks and other conservation projects started by the CCC helped preserve the land from devastating erosion.

FORBES: New Geographer

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