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美国农业部已经开始在较大范围内,尽最大努力取代已在美国普遍应用的风蚀和水蚀预报方程。参与这项研究的还有一些力求通过土壤侵蚀预报来制定土地利用政策的其它机构。 这项新技术以过程为基础,所用的基本关系式涉及到土壤分散和输移过程。它意味着侵蚀科学在土壤侵蚀预报方面的应用取得了较大进展。其技术的复杂性取决于使用者的需要和数据的有效性。该技术将应用到更多的土地利用类型和地形中。还将应用在个人电脑中。而且以这种方法建立的大量数据库,将为这种可延用到21世纪的先进预报方法提供数据。 美国农业部已在本国3亿公顷的各种管理和保护措施的农地或牧地中,应用了这种预报方法。并得到了农场主的认可。
The USDA has begun to do its utmost to replace the wind erosion and erosion prediction equations that are already widely used in the United States. Other participants in the study were other agencies that sought to develop land-use policies through predictions of soil erosion. The new technology is process-based and uses the basic relationships involved in soil dispersion and transport processes. It means that erosion science has made great progress in the application of soil erosion prediction. The technical complexity depends on the needs of the user and the validity of the data. The technology will be applied to more types of land use and topography. Will also be used in personal computers. Moreover, the large number of databases established in this way will provide data for such advanced forecasting methods that can be extended to the twenty-first century. The USDA has applied this method of forecasting to its 300 million hectares of farmland or rangeland for various management and conservation measures. And has been recognized by farmers.