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Artprice Images allows unlimited access to a worldwide collection of artworks, counting over 108 million images constantly updated from various auction houses. The company continuously publishes trends in relation to the art market for major art agencies as well as 6300 newspapers worldwide through its press agency, Art Market Insight .
The United States loses almost 3 tons of topsoil per acre per year. [16] 1 inch (2.5 cm) of topsoil can take between 500 [17] and 1,000 years [18] to form naturally, making the rate of topsoil erosion a serious ecological concern. Based on 2014 trends, the world has about 60 years of topsoil left.
Crop art is an environmental art practice using plants and seeds in the landscape to create statements, marks and/or images. Agnes Denes , Matthew Moore (artist), Dennis Oppenheim and Stan Herd are practitioners of Crop art.
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This article includes the table with land use statistics by country.Countries are ranked by their total cultivated land area, which is the sum of the total arable land area and total area of permanent crops.
In its early stages of development, soil loss tolerance rates were inconsistent because they were obtained based on rough estimates. From 1961 to 1962, several groups of soil in the United States were designated with T rates ranging from 2 to 6 tons per acre per year. The rate was subsequently adjusted to 1 to 5 tons per acre per year. [5]
Soils are the product of climate, organisms and topography, acting on parent (geologic) material over time. Thus the great diversity of geologic materials, geomorphic processes, climatic conditions, biotic assemblages and land surface ages in the United States is responsible for the presence of an enormous variety of mineral and organic soils.