The contents of fixed ammonium were higher than those in soil of North Hunan region and in soil of red earth region , and were a main N resource in the province.

高于湖南省以北地区土壤和本地区地带性土壤—红壤的固定态铵含量，是该地区的一项重要的土壤氮素资源。

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The results showed that the main crystalline iron oxide minerals in the clay of red earth was goethite and hematite, but only goethite was detected in the clay of yellow soil.

结果表明，黄壤与红壤粘粒中氧化铁矿物组成主要差别在于红壤既含针铁矿又含赤铁矿，而黄壤只含针铁矿。

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To think I take this land, ancient people that played a zither, attached to the birds in the bamboo forest streams between the lengthy Yang Yang, disturbing dreams of red earth.

多想席坐这地，学着古人那样奏一曲古筝，附着鸟语溪流在竹林间悠悠漾漾，扰乱尘世红梦。

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What ensues is a strange blend of manhunt and tone poem, in which even the most brutal characters seem rapt in the face of red earth and endless sky.

NEWYORKER: The Proposition

Just as Mars -- a desert planet -- gives us insights into global climate change on Earth, the promise awaits for bringing back to life portions of the Red Planet through the application of Earth Science to its similar chemistry, possibly reawakening its life-bearing potential.

CNN: Commentary: Let's aim for Mars

We travel for hours through broad plains of spinifex and red-earth anthills and see few other vehicles and no human settlements except, at the end of long rough dirt tracks, temporary Roy Hill rail-construction camps.

NEWYORKER: The Miner��s Daughter