Wheat has realized a bigger benefit , with about 90 % of wheat now grown on irrigated land .
小麦获得了更大好处,目前约90%的小麦都是在灌溉土地上种植的。
The reason water matters so much is that irrigated farming is so productive .
水之所以这么重要的原因是,灌溉的田地产量高。
But the river system that covers two-thirds of australia 's irrigated farming land is also suffering from decades of overuse .
与此同时,覆盖着澳大利亚2/3灌溉农场的墨-达河系还遭受着流域居民数年来的无节制使用。
Arid uplands are irrigated and planted with leafy gardens , whereas , on fertile plains , the parks are paved with stone .
在干旱的高地上引水灌溉,种植阔叶园林;然而在肥沃的平原上,公园里铺着石头。
Over half of world 's food comes from rain-fed farms , as opposed to irrigated ones .
世界粮食一半以上来自依靠雨水而非依靠灌溉的农田。
Crops raised for animal feed occupied roughly 11 million irrigated acres in 1997 according to the usda agricultural census ( see fig. 2 in appendix a ) .
据美国农业部农业普查的结果,1997年动物饲料作物约占1100万英亩的灌溉土地(见附录a图2)。
Ethiopia now has just 39km of roads per 1000 sq km , and less than 4 % of its land is irrigated .
埃塞俄比亚目前每1000平方公里有39公里的路,不到4%的土地得到灌溉。
With only about 40 per cent of farmland irrigated and more than half the country engaged in agriculture of some kind , good or bad rains affect incomes and spending across the economy .
Water problems will worsen both because irrigated areas will suffer disproportionately from the effects of climate change and because diets are shifting towards meat , which is " thirsty " .
With water deliveries slashed because of drought and environmental disputes , he could plant only 20 percent of his property with irrigated crops this year .