The establishment of Xining city DEM model and deriving of topographic feature and classification of watershed are described. Finally the situation of soil erosion is analyzed with USLE equation and a conclusion on soil erosion distribution is drawn.
2.模擬流域地貌發育過程的空間數據獲取與分析
Analysis of Spatial Data for Simulating the Development Process of Topographic Feature of Watershed
地貌的英文的縮寫為topographic feature
雙語例句：
1.介紹了應用地理信息系統技術，建立西寧市DEM模型，提取地形地貌指標，劃分西寧市小流域，並且引進USLE方程對西寧市的土壤侵蝕進行計算分析，得出西寧市土壤侵蝕分布情況。
The establishment of Xining city DEM model and deriving of topographic feature and classification of watershed are described. Finally the situation of soil erosion is analyzed with USLE equation and a conclusion on soil erosion distribution is drawn.
2.模擬流域地貌發育過程的空間數據獲取與分析
Analysis of Spatial Data for Simulating the Development Process of Topographic Feature of Watershed