Finally, the growing population was probably fed by increasing the number and size of irrigated fields.
最后，持续增加的人口很可能是通过不断扩大灌溉土地的面积和规模而得到食物供应的。
Better irrigation can dramatically improve crop yield and about 40% of the world's food supply is currently derived from irrigated land.
更好的灌溉可以显著提高作物产量；目前，全球约40%的粮食供应都来自于灌溉地。
Only 4% of the continent's farmland is irrigated.
整个非洲大陆上只有4%的土地得到灌溉。
If the eye is affected, it should be irrigated thoroughly.
如果眼睛受影响，应该进行彻底冲洗。
The Mekong River provides fertile, irrigated fields for rice production.
湄公河为水稻种植生产提供了肥沃的可灌溉土地。
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。 虽然只占世界总耕地的五分之一，但是生产了世界粮食的五分之四。
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。
On a mild late spring day Akbar irrigated a small plot of wheat just outside the village.
晚春和煦的一天，阿巴克在村外灌溉一小块小麦地。
Irrigation may not help: climate change will hit irrigated systems harder than rain-fed ones.
灌溉也没用：气候变化对人工灌溉区比雨水浇灌区的打击更大。
Ethiopia now has just 39km of roads per 1,000 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。
An ample water supply is probably the greatest advantage of soil submergence for irrigated rice.
大量供水可能对灌溉水稻淹水土壤有很大好处。
Ethiopia now has just 39km of roads per 1, 000 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。
This is a smooth, slowly rising area that has many fertile valleys and is irrigated by many waterways.
这是一个平坦的逐渐上升的地带，拥有许多富饶的山谷，并且由很多水路进行灌溉。
It is the least irrigated and electrified, yet it USES only 3% of its renewable water, against 52% in South Asia.
它的灌溉率及电气化程度均为全球最低，仅3%的再生水资源得到利用，反观南亚，再生水资源的利用率高达52%。
Australia's biggest river system is Shared by four states and feeds two-thirds of the country's irrigated farmland.
澳大利亚最庞大的水系遍布四个州，哺育着这个国家三分之二的农田。
This is all reassuring—until you remember that irrigated agriculture accounts for 70 percent of the fresh water used by humans.
这些都很令人欣慰，不过你应该知道，农业灌溉消耗的水量占到了人类总耗水量的70%。
Our studies have found that local rice production under irrigated conditions can be as competitive as in Asia and much cheaper than in the USA.
我们开展的研究发现，地方灌溉水稻生产的竞争力与亚洲相同，生产成本比美国要低得多。
Only 4% of farmland in sub-Saharan Africa is irrigated, which means that most farmers, especially smallholders, rely on rainfall to feed their crops.
撒哈拉沙漠以南的非洲大陆只有百分之四的农田得到灌溉。这就意味着大部分农民，尤其是小块土地的经营者，都是靠天吃饭。
Waterless urinals will be used in the stadium and the pitch will be irrigated exclusively with non-drinkable water, the organising committee said.
组委会称，体育场将使用无水便池，球场只浇非饮用水。
With water deliveries slashed because of drought and environmental disputes, he could plant only 20 percent of his property with irrigated crops this year.
因为干旱和环境恶化，供水大幅削减，他今年仅能在自己20%的土地上种植灌溉作物。
There were three problems that could have caused Noah to doubt. First, Noah had never seen rain, because prior to the Flood, God irrigated the earth from the ground up.
这会给挪亚带来三个难题：第一，挪亚从来没有看过下雨，因为在洪水之先，神藉地上的雾气滋润大地。
09052104 Researchers have shown that potatoes irrigated with arsenic-rich water contain this element at levels up to 35 times higher than crops on which this water was not used.
研究人员发现，用含砷量高的水灌溉出来的马铃薯，其含砷量可达到不含砷水种养出来的马铃薯的35倍。
09052104 Researchers have shown that potatoes irrigated with arsenic-rich water contain this element at levels up to 35 times higher than crops on which this water was not used.
研究人员发现，用含砷量高的水灌溉出来的马铃薯，其含砷量可达到不含砷水种养出来的马铃薯的35倍。
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