Dust Bowl - Wikipedia
The Dust Bowl was the result of a period of severe dust storms that greatly damaged the ecology and agriculture of the American and Canadian prairies during the 1930s. The phenomenon was caused by a combination of natural factors (severe drought ) and human-made factors: a failure to apply dryland farming methods to prevent wind erosion , most ...
National Soil Erosion Rates on Track to Repeat Dust Bowl-era …
2020年12月16日 · If soil continues to erode at current rates, U.S. farmers could lose a half-inch of topsoil by 2035—more than eight times the amount of topsoil lost during the Dust Bowl. They could lose nearly three inches by 2100.
What we learned from the Dust Bowl: lessons in science, policy, …
The phrase “Dust Bowl” originated in a 1935 newspaper account of a tremendous dust storm that drifted across Colorado, Kansas, Oklahoma, and Texas, and was quickly adopted more widely as a term to describe that part of the southern Plains where dust storms and soil erosion were especially common and severe (Hurt 1981). The exact boundaries ...
The Dust Bowl | National Drought Mitigation Center
These events laid the groundwork for the severe soil erosion that would cause the Dust Bowl. Several factors including a market crash started a period of economic downturn known as the Great Depression. The middle of the nation is in the midst of the first of four major drought episodes that would occur over the course of the next decade.
Dust Bowl | Definition, Duration, Map, & Facts | Britannica
2024年12月19日 · Dust Bowl, both the drought period lasting from 1930 to 1936 in the U.S. Great Plains and the part of the Great Plains where overcultivation and drought resulted in the erosion of topsoil, which was carried off in windblown dust storms forcing thousands of families to leave the region during the Great Depression.
Multiple causes of wind erosion in the Dust Bowl - ScienceDirect
2015年12月1日 · Any discussion of the factors that “cause” wind erosion in the Dust Bowl, whether natural or human, should focus on how these factors affect the application of forces acting on soil particles. The wind at the soil surface, if strong enough, will make the grain move.
From Dust Bowl to Dust Bowl: Soils are Still Very Much a Frontier …
2011年11月1日 · Dust bowls and large-scale soil degradation occur over vast regions in a number of countries. Perhaps more so even than in the past, soils currently have the potential to affect populations critically in several other ways as well, from their effect on global climate change, to the toxicity of brownfield soils in urban settings.
This paper analyzes the aftermath of large and permanent soil erosion during the 1930s that became widely known as the “American Dust Bowl.” Large dust storms swept topsoil from the land such that, by the 1940s, many Plains areas had cumu-latively lost more than 75 percent of their original topsoil. Detailed data allow for
The Dust Bowl in the US: An Analysis Based on Current
2018年8月1日 · The Dust Bowl occurred in the Central Plains states in the United States between 1930 and 1940. Prolonged drought, intense recurrent dust storms and economic depression had profound effects on human welfare. The causes included increased farming on marginal land, poor land management, and prolonged drought.
What we learned from the Dust Bowl: lessons in science
2013年8月28日 · The phrase “Dust Bowl” originated in a 1935 newspaper account of a tremendous dust storm that drifted across Colorado, Kansas, Oklahoma, and Texas, and was quickly adopted more widely as a term to describe that part of the southern Plains where dust storms and soil erosion were especially common and severe (Hurt 1981). The exact boundaries ...