甘肃省旱作农业占全省总耕地面积的76%。
Rainfed agricultural area in Gansu province covers of 76% of total arable lands of this province.
总耕地面积有所增加。
安徽淮北平原宜井灌溉面积占总耕地面积近80%。
Suitable well-irrigation is about 80% of the total farmland area in north Huaihe River plain of Anhui province.
也就是说，这是一片比全国总耕地面积还大的、永不枯竭的绿色油气田。
That is to say, this is a is greater than the national total arable land area, never dried up the green fields.
1997年以来67%的被调查农户的植棉面积呈持续增加状态，棉花种植面积已占农户总耕地面积的50.3%。
The planting area of 67% of the fanners interviewed has continuously increased since 1997. The planting area for cotton was 50.3% of the average field area farmers owned.
这项试验可能使全世界的水稻显著增产，因为洪涝灾害每年破坏2,000万公顷（5,000万英亩）的水稻，而总耕地面积才15,000万公顷。
This trait could increase the world's rice harvest dramatically, since flooding damages some 20m hectares (50m acres) of rice each year out of a total crop of 150m hectares.
这项试验可能使全世界的水稻显著增产，因为洪涝灾害每年破坏2,000万公顷（5,000万英亩）的水稻，而总耕地面积才15,000万公顷。
This trait could increase the world's rice harvest dramatically, since flooding damages some 20m hectares (50m acres) of rice each year out of a total crop of 150m hectares.
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