塔里木河下游河岸带植被的空间结构特征

朱绪超, 袁国富, 邵明安, 易小波, 杜涛

Spatial pattern of riparian vegetation in desert of the lower Tarim River basin

ZHU Xu-Chao,YUAN Guo-Fu,SHAO Ming-An,YI Xiao-Bo,DU Tao

表1 分类类别错分漏分矩阵表

Table 1 Error matrix of wrongly and omissively classified pixels of classification types

类别 Classification 柽柳灌丛 Tamarix thickets 胡杨疏林 Populus euphratica woodlands 沙地 Sand lands 农田 Farmlands 水体 Water bodies 芦苇草地 Phragmites australis grasslands 总和 Total 制图精度(%) Mapping accuracy 柽柳灌丛 Tamarix thickets 9 982 3 121 1 375 102 48 160 14 788 67.5 胡杨疏林 Populus euphratica woodlands 6 403 23 758 413 30 91 523 31 218 76.1 沙地 Sand lands 1 424 228 38 380 0 21 1 40 054 95.8 农田 Farmlands 8 13 0 9 881 1 33 9 936 99.4 水体 Water bodies 0 0 0 0 58 371 14 58 385 99.9 芦苇草地 Phragmites australis grasslands 569 1 658 23 858 2 110 15 964 21 182 75.4 综合 Total 18 386 28 778 40 191 10 871 60 642 16 695 175 563 — 用户精度 User accuracy (%) 54.3 82.6 95.5 90.9 96.3 95.6 — — 总精度 Total accuracy = 89.0%; Kappa系数 Kappa coefficient = 0.86