终于在皮乌拉找到了这样的免费土地，但是居住于此依旧需要花费其他成本的。另外这里脆弱的旱地也因他们的到来付出了代价，因为这些人砍伐了这里所有的植物用作柴火从而导致了这里的沙化现象更为严重。
In Bajo Piura they find it, although living there has other costs, and fragile drylands pay their own price too, as people exacerbate desertification by cutting anything living for firewood.
在阿根廷或美国，可开垦土地只有偏远的干旱地区，所以种植成本太高。
Expanding production in Argentina or America takes you into drier marginal lands which are much more expensive to farm.
旱地耕作法指一种在干旱或半干旱土地上不使用灌溉方法生产作物的耕作制度。常常采用一年休耕、一年种植的方法。
Dry farming; dryland farming a system of producing crops in arid and semiarid regions without the use of irrigation. Frequently alternate years of fallow and cropping are practiced.
旱地耕作法：指一种在干旱或半干旱土地上不使用灌溉方法生产作物的耕作制度。
Dry farming; dryland farming: a system of producing crops in arid and semiarid regions without the use of irrigation.
在一些干旱地带存在严重的土地退化问题。
There are serious problems of land degradation in some arid zones.
在一些干旱地带存在严重的土地退化问题。
There are serious problems of land degradation in some arid zones.
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