In our country, part of soil erosion is caused by forest operations.

我国水土流失一部分因森林作业而产生。

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Forest harvesting slash disposal is one of the important parts of forest operations.

采伐剩余物迹地清理是森林作业的重要组成部分之一。

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Wal-Mart Stores (WMT) said Monday it will phase out illegal wood sources and increase the products it buys from sustainable forest operations.

沃尔玛商场周一表示他们将逐渐停止非法的木材采购，并从能持续供应林木的公司中加大采购量。

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Mr Garson said the commission carried out hundreds of forest operations and harvested about 700, 000 tonnes of timber every year, but this was the first pollution incident resulting from harvesting operations for more than 10 years.

BBC: Forestry Commission fined ?24,000 for Powys pollution

Many poor people who live in or near forests may actually welcome the opportunity to farm on deforested land and bureaucrats in distant capitals may think that unsustainable and low-revenue-yielding forest operations are politically preferable to what they perceive as expensive alternatives.

ECONOMIST: Conflict of opinion

The academy's powered flight, glider and parachuting operations have been called off since Saturday so that the U.S. Forest Service could use runways for helicopters used to fight fires along Colorado's Front Range, Van Winkle said.

CNN: Crews go on offensive against growing Colorado wildfire