将超过气候变暖使寒冷地区可耕的新增产量，这还将抵消压缩二氧化碳带来的收益。
This would exceed any possible gains from warming in areas currently too cold to grow crops and would also offset the benefits of rising carbon-dioxide concentrations.
过去二十年间，最大的农业成功在巴西，很大程度上是因为巴西通过改造塞拉多（大草原般的草地）增加了可耕面积。
The biggest agricultural success story of the past two decades has been Brazil, largely because it was able to increase its usable acreage by making its vast cerrado (savannah-like grassland) bloom.
施用除草剂可减少免耕玉米田杂草种类，抑制杂草生物量的增长。
Herbicide could decrease weed species and inhibit biomass growth significantly in non-tillage field.
若不改变这种不合理的使用土地资源的状况，数十年后，将会出现塬面“无地可耕”的危险局面。
This demonstrates clearly that there will be no land available for agriculture in several decades if the current situation continues.
若不改变这种不合理的使用土地资源的状况，数十年后，将会出现塬面“无地可耕”的危险局面。
This demonstrates clearly that there will be no land available for agriculture in several decades if the current situation continues.
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