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在美国爱达荷州,因需对沟灌侵蚀试验数据进行处理分析,促进了这方面软件的发展。借助这些软件程序,通过输入灌水沟的输水量、径流速率、英霍夫锥形管容积法量测的径流含沙量、采样时间、沟间距等参数可计算渗透量、径流量和泥沙流失量。其中有两个用于大面积灌水沟监测的PC——基础程序(FRWSED和Spreadsheet),它们可产生准确的沟灌侵蚀估算值或进一步对试验数据标准化。HP—11C计算器程序提供粗略的判别分析信息,农业专家可利用这些信息估算农田沟灌侵蚀的潜在严重性。该软件已被广泛试验和应用。
In Idaho, USA, the development of software in this area has been promoted due to the need of processing and analyzing the furrow irrigation test data. With these software programs, infiltration, runoff, and sediment can be calculated by inputting the amount of water delivered to the gutter, the runoff rate, runoff sediment concentration measured by the Inhoff conical tube volumetric method, sampling time, Loss amount. There are two PC-based programs (FRWSED and Spreadsheet) for monitoring large area irrigation ditches that produce accurate estimates of furrow erosion or further standardize test data. The HP-11C Calculator program provides rough discriminant analysis information that agricultural experts can use to estimate the potential severity of farmland furrow erosion. The software has been widely tested and applied.