desert crust — A crust formed by microbial binding of sand grains in the surface zone of desert soil; crust formation primarily involves cyanobacteria … Dictionary of microbiology
soil — soil1 soilless, adj. /soyl/, n. 1. the portion of the earth s surface consisting of disintegrated rock and humus. 2. a particular kind of earth: sandy soil. 3. the ground as producing vegetation or as cultivated for its crops: fertile soil. 4. a… … Universalium
Desert — Not to be confused with dessert. This article is about dry terrain. For the act of abandoning or withdrawing support, see desertion. For other uses, see Desert (disambiguation) … Wikipedia
Desert fungi — A variety of terricolous fungi inhabit the biological soil crust of arid regions. Those exposed to the sun typically contain melanin and are resistant to high temperatures, dryness and low nutrition. Species that are common elsewhere (e.g.… … Wikipedia
desert varnish — the dark, lustrous coating or crust, usually of manganese and iron oxides, that forms on rocks, pebbles, etc., when exposed to weathering in the desert. Also called desert polish. [1900 05] * * * or patina Thin, dark red to black mineral coating… … Universalium
Arabian Desert — 1. a desert in Egypt between the Nile valley and the Red Sea. ab. 80,000 sq. mi. (207,000 sq. km). 2. the desert region in the N part of the Arabian peninsula. * * * Desert region, Arabian Peninsula. It covers about 900,000 sq mi (2,330,000 sq… … Universalium
Cryptobiotic soil — in Hovenweep National Monument … Wikipedia
Karakum Desert — or Kara Kum Desert Desert area, Central Asia. Located in Turkmenistan, it is bounded to the east by the Amu Darya valley. It can be divided into three major regions: the elevated and wind eroded Trans Unguz in the north, the low lying central… … Universalium
Colorado Desert — landscape California s Colorado Desert is a part of the larger Sonoran Desert, which extends across southwest North America. The Colorado Desert region encompasses approximately 7 million acres (2,800,000 ha), reaching from the Mexican border in… … Wikipedia
Krustenboden — dykumų dirvožemis statusas T sritis ekologija ir aplinkotyra apibrėžtis Sausringų zonų dirvožemis (kalkžemis, kalciažemis, smėlžemis, druskožemis), kurio paviršiuje kaupiasi tirpiosios druskos (karbonatai, sulfatai, chloridai) ir susidaro… … Ekologijos terminų aiškinamasis žodynas
