Recent studies of ancient Maya water management have found that the urban architecture of some cities was used to divert rainfall runoff into gravity-fed systems of interconnected reservoirs.
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6. 与水稻相比，玉米耗水更少，产生的化肥径流也更少。
Corn uses less water than rice and creates less fertilizer runoff.
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7. 相反，有径流从两端流进流出的池塘，在径流枯竭的时候也会干涸，地表水就明显占据主导地位。
Conversely, a pond with a stream flowing in one end and out the other, which dries up when the stream dries up, is clearly surface water dominated.
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8. 对于大多数湖泊，特别是那些被森林环绕的湖泊来说，来自地表径流的流量太小，无法产生明显的效果。
For the majority of lakes, certainly those surrounded by forests, input from overland flow is too small to have a noticeable effect.
The filling of the Ataturk and other dams in Turkey has drastically reduced flows in the Euphrates, with potentially serious consequences for Syria and Iraq.
These flow features are extensive systems—sometimes hundreds of kilometers in total length—of interconnecting, twisting channels that seem to merge into larger, wider channels.
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11. 同时，还将保证新的建筑达到径流管理规定。
New buildings would also have to meet run-off regulations.
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12. 地表径流汇集的地区。
Areas where surface runoff is directed.
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13. 而且没有农业径流和用来对付瓢虫等天敌的化学农药。
There was no agricultural run-off, and chemical pesticides were replaced with natural predators such as ladybirds.
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14. 磷污染有多个来源，包括化肥和粪肥通过径流进入水源。
Phosphorus pollution comes from multiple sources, including fertilizer and manure that enter the water through runoff.
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15. 但在过去30年“径流一直不断增加，”他在电子邮件交流时说。
But over the last 30 years "there has been an increase in runoff," he said in an email exchange.
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16. 您可以调整这些既控制径流和帮助种植面积积水的更好。
You can adapt these to both control runoff and help planted areas retain water better.
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17. 汇流的雨水增加，径流系数增大，形成了地面的雨水径流。
The increase of rainwater runoff, runoff coefficient increases, the formation of the ground.
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18. 这项新研究的重点是表面融化，径流以及暴露于太阳辐射下的裸冰和无雪天数。
The new study focused on surface melt, runoff and the number of days when bare ice, free of snow, is exposed to the Sun's radiative force.
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19. 尽管如此，诸如城市径流遭到污染以及污水外溢等问题仍然困扰着当地的河道。
However, problems like urban runoff and sewer overflows continue to trouble local waterways.
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20. 人们还可以在封闭的灌溉系统中循环用水以减少用水量、避免径流造成土肥流失。
You’d reduce water use and end runoff by recycling water in a closed irrigation system.
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21. 人们还可以在封闭的灌溉系统中循环用水以减少用水量、避免径流造成土肥流失。
You'd reduce water use and end runoff by recycling water in a closed irrigation system.
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22. 介绍一种新型遥测径流量仪，可自动测量和记录径流量和时间这两个相关量。
Describes a new tipping bucket type telemetry runoff flow-meter with automatic measure amount and time of runoff.
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23. 径流的污染情况比较严重，当径流量超过排水管网的最大负荷时就会形成内涝灾害。
The pollution of runoff more serious waterlogging disasters will be formed when the load exceeds the maximum runoff drainage time.
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24. 在未来几十年里的某个时候，冰山的消融会减少冰山径流，从而减少对智利城市居民的用水供应。
Some time in the coming decades, the shrinking of glaciers will cause a drop in the level of glacial runoff, reducing the supply of water to urban Chileans.
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25. 局部问题包括从由海岸径流引起的污染及淤积到因对天然食品的强烈需求而引发对海草采捞的增大。
Local issues range frompollution and siltation due to coastal runoff to an increase in the harvest ofsome seaweeds, fueled by the demand for natural food.
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26. 用模拟径流资料检验按实测径流资料所得的优化效益，并分析了径流时间空间相关关系。
The optimal benefit of runoff data examined with simulated inflow data and the correlation between runoff time and space.
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27. 用模拟径流资料检验按实测径流资料所得的优化效益，并分析了径流时间空间相关关系。
The optimal benefit of runoff data examined with simulated inflow data and the correlation between runoff time and space.
