利用地形、土壤和作物信息辅助提高东北漫岗地数字高程模型精度的新方法

马雨阳,官海翔,杨昊轩,邵帅,邵逸群,刘焕军

A New Method to Improve the Accuracy of Digital Elevation Model in Northeast China by Using Terrain, Soil and Crop Information

MA YuYang,GUAN HaiXiang,YANG HaoXuan,SHAO Shuai,SHAO YiQun,LIU HuanJun

图5 归一化植被指数与地形关系 a：凹坡;b：先凹后凸复合坡;c：先凸后凹复合坡;d：凸坡

Fig. 5 Relationship between normalized vegetation index and topography a: Concave slope; b: Compound slope with the first concave and then convex; c: Compound slope with the first convex and then concave; d: Convex slope