He turns the frozen soil carefully before putting in the new plants.

插上新花前翻动了一下冻僵的泥土。

You can feel the tough work of it in that hard, frozen soil.

你能想象到在冰冷坚硬的土地上，这个工作是多么的艰难。

Researchers examined how the top layer of this frozen soil warms during the summer.

研究人员检查了这些冻土的表层在夏季是如何变暖的。

The area's water reserves are mainly composed of glaciers, snow, frozen soil, lakes and rivers.

该地区的水资源储备主要由冰川、积雪、冻土、湖泊与河流组成。

The researchers say as more frozen soil warms up, more plant roots are becoming exposed to microorganisms.

研究人员说，随着越来越多的冻土层解冻，越来越多的植物根系接触到微生物。

That's bad news, because these frozen soils store billions of tons of carbon, just waiting to be unleashed.

这是个坏消息，因为这些冻土储存了数十亿吨的等待释放的碳。

That frozen soil locks up a lot of organic material.

这些冻土锁住了大量的有机物。

The previous winter, before leaving Korphe, Mortenson had driven tent pegs into the frozen soil and tied red and blue braided nylon cord to them, marking out a floor plan of five rooms he imagined for the school.

前一个冬天，在离开科尔飞之前，摩顿森将帐篷钉钉入冰冻的土壤中，并在上面系上红蓝两色编织的尼龙绳，在他想象中的学校标出五个房间的平面图。