That builds topsoil and prevents flooding.

这会形成表，防止洪水。

The island is lush with greenery again, regrowing after decades of topsoil mining.

过几十年的表开采，岛上又重新覆盖了郁郁葱葱的植被。

So, you're seeing at the topsoil, you have the water table, the different layers underneath the ground.

大家可以看到表层，地下水位，还有地下不同的分层。

Landscapes were already degraded, rivers were silted with precious topsoil.

景观已，河流被珍贵的表淤积。

Then it's important to aerate the topsoil and leave it loosely packed on the surface.

然后重要的是给表充气并使其松散地堆积在表面上。

They eat close to the roots, preventing plants from regrowing; their sharp hooves damage topsoil.

它们靠近根部进食，阻止植物重新生长；它们锋利的蹄子会破坏表。

Below the A horizon are layers of basically all the extras from the topsoil.

A 层以下是表层基本上 所有的附加物。

We endured pelting rainstorms that washed away our topsoil.

我们忍受着暴风雨的袭击, 冲走了我们的表。

It ignores the depletion of resources like groundwater and topsoil and the web of living species.

它忽略了地下水和表以及生物物种网络的枯竭。

When it gets this dry, plants and grasses are all that keep the topsoil from blowing away.

当它变得如此干燥时，植物和草就可以防止表被风吹走。

You could almost see them drawing out carbon dioxide and pumping out oxygen, holding on to precious topsoil.

你几乎可以看到它们吸收二氧碳并泵出氧气，保留着宝贵的表。

The new landowners are not planning to import new topsoil to make their African acquisitions more arable.

新的地所有者不打算进口新的表来使他们在非洲收购的壤更可耕种。

While arid regions may get the same amount of rain, it now comes in torrents, washing away the topsoil.

虽然干旱地区可能会有同样多的雨水，但现在雨水倾盆而下， 冲走了表。

So, the landfill changed its routine, keeping the topsoil in place until just before the trash is dumped, greatly reducing methane emissions.

那么，这个垃圾填埋场一改常规，垃圾倾倒之前，不进行表剥离，这种做法大大减少了甲烷的排放。

As settlers cleared land to create the great farms of the American Midwest, more and more valuable topsoil eroded into the Mississippi.

随着定居者开垦地，建造美国中西部的大农场，越来越多宝贵的表被侵蚀成密西西比河。

There is the opportunity to sequester a great deal of carbon in topsoils around the world by changing the agricultural techniques.

通过改变农业技术，有机会在世界各地的表中封存大量碳。

Decades of overgrazing, climate change-induced droughts, and poor farming practices are stripping not only the Sudanian grasslands of their once fertile topsoil but hundreds of other regions like it across the world.

几十年的过度放牧、气候变引发的干旱和不良的耕作方式，不仅使苏丹草原失去了曾肥沃的表，也使世界上其他数百个类似的地区失去了表。

And Jackson knows that the way that most crops are grown around the world today is stripping the earth of the fertile topsoil we need to feed future generations.

杰克逊知道，当今世界上大多数农作物的种植方式正在剥夺我们养活子孙后代所需的肥沃表。

(professor) Good, not only plants, microorganisms, fungi, and later on, animals like worms, all helped build up a layer of topsoil on the land, which, of course, encouraged more plant life.

很好，不仅植物，微生物、真菌，以及后来像蚯蚓这样的动物，都帮助在地表形成了一层表，这当然促进了更多的植物生长。

He got together with a group of scientists, and they bred perennial grain crops which have deep roots that anchor the fertile topsoil of a farm, preventing erosion and protecting future harvests.

他与一群科学家聚在一起，他们培育出多年生的粮食作物， 这些作物的根深蒂固， 可以固定农场肥沃的表， 防止侵蚀并保护未来的收成。