土壤流失量及其参数实测的新方法

本文介绍的新方法，由八个实测项目和措施组成，具有简便，直观和省钱的特点。经南北方各地的实测结果表明，它有着为常规法远所不及的适应性和实用性，又有与常规法同等的准确性。这使它能够获得为建立流失量监测模型或修正，ＵＳＬＥ因子算式所需的大量实测数据，作为实以，省顷级土壤年流失量遥感监测的。的方法的实测学表明，植被或作物的有无，严重着流失量的大小，特别是红壤区。

A NEW METHOD FOR OBSERVING ANNUAL SOIL LOSS AND ITS PARAMETER

The new method of observing annual soil loss and its parameters is made upeof eight observing items and means. It is audio-visal, economical, simple and convnient. The results observed in experimental areas of southern and northern China show that the new method has better adaptability, more practicality and the same accuracy as conventional method. So, the new method can obtain a. lot of observing data which can be used in creating models of monitoring annual soil loss or revising formulation of USLE erosion factors to realize monitoring annual soil loss over province or county area by using remote sensing and GIS. Meantime, the results obser-Ped by using the new method show that changes of annual soil loss are seriously subjected to the cover degree of vegetation or crop, particularly in red soil regions.