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Mexico
Book article from: The Columbia Encyclopedia, Sixth Edition
...surface crust, formerly supported by subsoil water, can no longer sustain the city...pilings. In addition to being built on soft subsoil, the city is located in a region of high...colonial architecture remain in spite of subsoil and seismic threats. The cathedral and...
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tundra
Book article from: The Columbia Encyclopedia, Sixth Edition
...high temperatures may be reached during a summer day, the subsoil is perpetually frozen. During summer, sedges, mosses, and...single species or the disruption of the permanently frozen subsoil (permafrost) may severely damage this fragile ecosystem...
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Yucatán
Book article from: The Columbia Encyclopedia, Sixth Edition
...humid. The peninsula is subject to hurricanes. Economy Most of the northern half, although covered with only a few inches of subsoil, is one of the most important henequen-raising regions of the world; the uncultivated area is under a dense growth of scrub...
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permafrost
Book article from: The Columbia Encyclopedia, Sixth Edition
permafrost permanently frozen soil, subsoil, or other deposit, characteristic of arctic and some subarctic regions; similar conditions are also found at very high altitudes...
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Territorial Waters
Encyclopedia entry from: West's Encyclopedia of American Law
...exploitation of resources, and other lawful uses. The legal status of territorial waters also extends to the seabed and subsoil under them and to the airspace above them. From the eighteenth to the middle of the twentieth century, international law...
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Horticulture
Encyclopedia entry from: The Gale Encyclopedia of Science
...presence of beneficial or harmful microscopic organisms, and the composition and structure of the soil layers (topsoil and subsoil). The addition of mineral nutrients and organic matter to soil being prepared for planting is a common practice in horticulture...
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rice
Book article from: World Encyclopedia
...countries. Rice is a staple diet for half the world's population. It is an annual grass; the seed and husk is the edible portion. It usually grows in flooded, terraced paddies with hard subsoil to prevent seepage. Species Oryza sativa.
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deserts
Book article from: The Oxford Companion to the Earth
...chloride, calcium carbonate, and calcium sulphate) accumulate in desert soils, forming calcic and gypsic horizons in the subsoil. Insolation weathering and salt weathering dominate processes of rock breakdown. On a regional scale, lack of water gives...
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anthropogeomorphology
Book article from: The Oxford Companion to the Earth
...will cause sea ice to melt and may lead to the retreat of alpine glaciers and the melting of permafrost (permanently frozen subsoil). The forms of vegetation will change and show latitudinal migration which will also influence the operation of geomorphological...
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McAdam, John Loudoun
Book article from: The Oxford Companion to British History
...1814, making the observations that formed his ‘principles’: employing small stones direct onto the subsoil as the method of making effective roads largely impermeable to water. These were presented to the House of Commons in 1811...
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