The cultivation of crops has expanded into progressively drier regions as population densities have grown.

随着人口密度的增长，农作物的种植已经扩展到了越来越干旱的地区。

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So pastoral industries are more important than the cultivation of crops.

因此畜牧业比种庄稼更重要。

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Critics argue that the cultivation of crops for bio-fuels is taking good land away from food production and causing prices to rise.

评论家指出种植生物燃料的农作物夺走了种植粮食所需的土地，从而引发粮价上涨。

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All sources of energy and electricity require water in their production processes: the extraction of raw materials, cooling in thermal processes, in cleaning processes, cultivation of crops for biofuels, and powering turbines to generate hydroelectricity.

UNESCO: CULTURE

It comes amid speculation that ministers are ready to relax control on the cultivation of GM crops.

BBC: Owen Paterson backs UK-grown genetically modified food

First, the cultivation of genetically engineered crops has drastically reduced the use of chemical pesticides, resulting in less runoff into waterways and ground water and fewer poisonings of farmers and their families.

FORBES: Bittman of the 'New York Times': Always Out To Lunch