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首页> 外文期刊>Agricultural History >The Southern Great Plains wind erosion maps of 1936-1937.
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The Southern Great Plains wind erosion maps of 1936-1937.

机译:1936-1937年的大平原南部风蚀图。

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摘要

In 1936-1937 the US Soil Conservation Service conducted a reconnaissance survey of the Dust Bowl, the area of worst wind erosion on the southern Great Plains. Providing farm-level detail and covering twenty-six counties in five states - some twenty-seven million acres or forty-two thousand square miles - this survey represents our best record of land use and soil erosion at the peak of the 1930s crisis. The project generated well-designed and information-rich maps for each county, but their graphic nature and large size has left them virtually unknown to agricultural and environmental historians of the Dust Bowl. The Historical Geographic Information Systems Laboratory at the University of Saskatchewan has now digitized these maps and built an HGIS that will allow analysis of this information for the first time in seventy-five years.
机译:1936-1937年,美国土壤保护局对沙尘暴进行了勘测,沙尘暴是大平原南部风蚀最严重的地区。提供了农场一级的详细信息,并覆盖了五个州的26个县-约2.77亿英亩或4.2万平方英里-该调查代表了我们在1930年代危机高峰时的土地利用和土壤侵蚀的最佳记录。该项目为每个县生成了设计良好且信息丰富的地图,但其图形性质和大尺寸使其实际上对沙尘暴的农业和环境历史学家而言是未知的。萨斯喀彻温大学的历史地理信息系统实验室现已对这些地图进行了数字化处理,并建立了HGIS,这将允许七十五年来首次对该信息进行分析。

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