冲洪积平原 meaning in Chinese

alluvial-proluvial plain

This dissertation is mainly about regional land resource evaluation and land use analysis based on g1s and soter ( soil and terrain spatial and attribute database ) database . the research content is composed of three parts . the first is medium scale soter database study , in this part , the new landform indexes are studied , which are elevation classification , slope classification and relief index classification
在邯郸地区1 25万soter土壤土地数据库建立方面，主要探讨了适用于该比例尺的主地形体指标，提出海拔高度分组指标、坡度分组指标和地势起伏强度分组指标，并利用上述三个指标组合划分出邯郸地区中坡度丘陵( sh ) 、低坡度山前台地( lm ) 、山谷( lv ) 、中坡度山体( sm ) 、山前倾斜平原( lf )和冲洪积平原( lp ) 6个主地形体组分。