Experts say one potential cause is agricultural runoff.

专家表示，其中一个潜在原因就是农业。

The scientists said this was because of river run-off.

家表示，这是河造成的。

They had reduced harmful water runoff to safeguard the health of the reef.

他们通过减少有害来保护珊瑚健康地生长。

Scientists say nutrient pollution runoff from farms is the main problem.

家表示，来自农场的养污染是主要问。

And the Amazon river is rising, then, from the runoff from the Andes.

亚马逊河从安第斯山脉的往上。

So when it rains they are easily washed into the groundwater and runoff water.

所以当雨的时候，它们很容易被冲到地水以及水中。

With no plants to help absorb the water, the amount of runoff would increase as well.

没有植物帮助吸收水，的数量也会增加。

For a while, small rivers and irrigation runoff fed the lake.

有一段时间，小河和灌溉为湖泊提供了水源。

Water absorption is greatly reduced, consequently runoff is increased, resulting in accelerated erosion rates.

吸水量大大减少, 因此增加, 导致侵蚀速度加快。

The massive estuary suffers from coastal acidification caused in part by heavy rains and fertilizer runoff.

大量的河口遭受海岸酸化，部原因是暴雨和肥料。

Until, well, the lake started to turn a little bit.

可以看到，入这个湖的唯一真正的输入 是来自 农业。

Runoff due to misaligned sprinklers along the sidewalk, water is running down into the gutter.

由于人行道上的洒水器没有对准，水正到排水沟里。

Correlated the runoff from pineapple plantations to the increase of this disease in green sea turtles.

将菠萝种植园的与绿海龟这种疾病的增加联系起来。

The runoff, containing large amounts of nitrogen and phosphorous, is also a major contributor to water pollution.

包含大量氮和磷的，也是水污染的主要原因。

" The roots trap everything, including the surface runoff, and stabilize the weaknesses of the banks."

“竹子的根部可以截留一切，包括地表，并稳固河岸的薄弱位置。”

This often includes chemical sprays and multiple cycles of acid-washing, the toxic runoff can turn rivers indigo-blue.

这通常包括化喷雾和多次酸洗循环，有毒的会使河变成靛蓝色。

Every time a new structure is built, it causes runoff, and less water can seep into the ground.

每当有新建筑建成，就会造成地表，渗入地的水就会减少。

Then from April through July, those warmer temperatures cause the snow to melt in runoff and replenishes.

然后从4月到7月, 温热气候使积雪融化入并起到补充作用。

Fresh water supplies, poisoned by decades of garbage and toxic run-off, can be purified at an atomic level.

由数十年的垃圾和有毒污染的淡水供应，可以在原子水平上得到净化。

And the runoff fouled by copious quantities of pesticides needed to make the roses look perfect.

此外是被污染的，因为玫瑰还需要大量的农药来施肥，这样才能看起来完美无瑕。