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本文以巴萨克流域为例,介绍了应用航空遥感技术和通用土壤流失方程式进行土壤侵蚀潜在危险定量评价的基本方法和步骤,主要包括:1.收集分析前人的基础研究资料;2.应用航片和野外调查方法,判读解译土壤侵蚀特征,确定制图单元;3.以制图单元为基本单位,应用土壤流失方程式,确定诸因子量值,并计算土壤侵蚀量;4.结果分析与方法评价。利用航空遥感技术和通用土壤流失方程式进行大比例尺土壤侵蚀调查,具有快速、准确、高效、简便易行和节约人力、物力等优点,成为土壤侵蚀研究工作的有效途径。本文结合笔者的工作实践,试对其实施步骤和应用效果作以分析介绍。
This paper, taking the Basak basin as an example, introduces the basic methods and steps for the quantitative assessment of the potential risk of soil erosion using aerial remote sensing technology and general soil loss equations, including: 1. Collecting and analyzing the basic research data of predecessors; And field investigation methods, interpret and interpret the characteristics of soil erosion, to determine the mapping unit; 3 to cartographic units as the basic unit, the application of soil loss equation to determine the value of various factors, and calculate the amount of soil erosion; 4. Results Analysis and Method Evaluation . The investigation of large-scale soil erosion using aerial remote sensing technology and universal soil loss equation has the advantages of fast, accurate, high efficiency, simple and easy to use, manpower and material resources saving, and becomes an effective approach for soil erosion research. This article combines the author’s work practice, try to analyze the implementation steps and application effects.