ABSTRACT

This study examines the watersheds in the Bastora river basin and builds a geographic model within ARC GIS software. The work was divided into three phases. The first phase was to obtain the results of 14 morphometric parameters to determine priorities, by using AHP model to extract the relative weights of the parameters. Then, these weights are adopted in building (SDI, TOPSIS and SAW) models to determine levels of priorities. The outputs were classified into five categories according to the degree of their susceptibility to erosion. The second phase includes creating another model to provide necessary data and tools for building the RUSLE model. The final phase validates of pairs of models (TOPSIS-RUSLE), (SDI-RUSLE), and (SAW-RUSLE) using least squares tool for comparison between the results. The results indicate a highly statistically significant relationship among all the previous pairs of models with clear preference recorded for (TOPSIS-RUSLE) models relationship.

摘要

本研究检查了巴斯托拉河流域的流域，并在 ARC GIS 软件中构建了地理模型。工作分为三个阶段。第一阶段是获取14个形态测量参数的结果以确定优先级，通过AHP模型提取参数的相对权重。然后，在构建（SDI、TOPSIS 和 SAW）模型时采用这些权重来确定优先级级别。根据其对侵蚀的敏感性程度，将产出分为五类。第二阶段包括创建另一个模型，为构建 RUSLE 模型提供必要的数据和工具。最后阶段使用最小二乘工具验证模型对 (TOPSIS-RUSLE)、(SDI-RUSLE) 和 (SAW-RUSLE) 以比较结果。