An increasing amount of forest land has been used for industrial purposes, or for agricultural development such as crop growing.

越来越多的林地被用于工业目的，或用于农业发展，如种植作物。

youdao

He hopes this season brings greater crop yields... fueled by just the right amount of rain.

他希望这个季节由于适量的雨水带来更大的作物产量。

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The marked difference, however, is that China produces the same amount of grain on only half the size of US crop-land but supports a population nearly four times that of the United States.

然而，明显不同的是，中国仅以美国一半的可耕地生产了同样数量的粮食，并且负担了近乎美国人口四倍的人民的吃饭问题。

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Scientists are working to develop crop plants that can reduce the amount of water used for agriculture.

VOA: special.2009.03.23

"Kids really get engaged in science in the garden where it's a kind of fun activity where they're collecting data and seeing how different temperatures will change the amount of water that's needed by a crop, so the science concepts come easily."

VOA: special.2011.06.14

For example, in the island nation of Papua New Guinea, an increase in population growth coupled with rising sea levels is decreasing the amount of crop land making farming very difficult for the indigenous people of the region, according to the U.N.

CNN: 'Climate change' forces Eskimos to abandon village

The results of the experiments, reported in the journal Science, show that the modified plant can thrive even when salt levels are twice the amount that would kill a normal crop of corn.

BBC: GM plant battles salt

The fall came even as the amount of land used to cultivate the crop rose by 18%, the UN Office on Drugs and Crime (UNODC) said.

BBC: Afghanistan opium harvest drops by a third - UN