New laws were passed immediately that achieved the same result of resting soil and providing flood-control measures, but which were based on the principle of soil conservation.
新的法律立即通过，达到了同样的结果，使土壤留下来和提供防洪措施，但这是基于土壤保护的原则。
This is related to flood-control tests.
这与防洪控制测试也是相关的。
Since then, however, land has become more valuable, not just for timber but for providing "environmental services" such as flood control, climate change measures and amenity.
但是从那时起，林地变得越来越有价值，不仅是因为伐木业，而且因为它所提供的环境服务，例如控制洪水，调节气候等。
The Mississippi's flow has been altered for flood control to protect people and infrastructure in this working delta.
在这个三角洲地带，密西西比河曾经改道以控制洪水，保护居民和基础设施。
Questions about the dam's usefulness in flood control comes on top of other issues.
大坝在洪水控制方面是否有效的问题是最最重要的。
Since then, the goals of power generation and flood control have sometimes been in conflict. Regulating water levels can reduce how much electricity is made.
自那以来，发电和控制洪水的目标有时会互相矛盾，调控水位就会减少发电量。
The World Bank estimates, for example, that the $3.15 billion spent in China on flood control since the 1960s has averted losses of $12 billion.
比如，据世界银行估计，中国60年代以来的31.5亿防洪投入已经减少了120亿的损失。
Zhang Zhenyu, spokesman of Shanghai flood Control Headquarters, said that the city is considering building a floodgate near the Yangtze estuary.
上海市防汛指挥部发言人张震宇(音译)说，上海正在考虑在长江河口建造一道防洪闸门。
Flood control requires the reservoir maintain low levels of water to allow for the inflow of flood waters, while power generation requires high levels of water in the reservoir.
抵御洪水需要水库保持低水位运行，以容纳洪水的流入，而水库只有保持高水位才能满足发电的需要。
Large tracts of grassy fields and forests in the area (light to dark green respectively) include nature preserves, grazing lands, and flood control areas.
此地区的大片绿地和植被(分别显示为浅绿和深绿色)包含了自然保护区域、牧地和防洪区。
The State Flood Control and Drought Relief Headquarters said the drought remains severe in Southwest China despite recent moderate rainfall.
国家防汛抗旱总指挥部称近期西南地区降雨量不大，旱情仍然严峻。
Reservoirs should keep adequate storage capacity for flood control according to the requirements of flood control planning.
水库应当按照防洪规划的要求留足防洪库容。
Some places are getting 80 percent less rain than they normally do, according to the Flood Control and Drought Relief Office.
部分地区的降水比以往少了80%，据国家防汛抗旱总指挥部说。
Some places are getting 80 percent less rain than they normally do, according to the Flood Control and Drought Relief Office.
部分地区的降水比以往少了80%，据国家防汛抗旱总指挥部说。
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