阿拉尔垦区近30年耕地变化及其驱动因子分析

宋奇, 冯春晖, 高琪, 王明玥, 吴家林, 彭杰

Change of cultivated land and its driving factors in Alar reclamation area in the past thirty years

SONG Qi, FENG Chunhui, GAO Qi, WANG Mingyue, WU Jialin, PENG Jie

表2 2019年SAM—CRF,ANN—CRF,MDC—CRF,MLC—CRF和SVM—CRF分类结果的精度对比

Tab.2 Accuracy comparison of SAM—CRF,ANN—CRF,MDC—CRF, MLC—CRF and SVM—CRF classification results in 2019

类型 SAM—CRF ANN—CRF MDC—CRF MLC—CRF SVM—CRF UA/% PA/% UA/% PA/% UA/% PA/% UA/% PA/% UA/% PA/% 耕地 73.85 74.15 91.56 77.87 92.47 83.30 94.47 89.90 98.41 99.77 林草地 34.50 45.87 65.20 68.33 72.24 69.86 83.59 77.21 97.33 94.89 园地 55.63 63.23 76.44 84.08 81.09 85.30 92.05 87.91 96.89 97.64 水体 85.48 72.13 88.65 79.47 90.66 82.84 91.67 85.69 92.81 93.34 建设用地 42.13 47.57 63.30 71.29 67.70 72.92 83.15 86.12 96.43 90.40 沙地 78.89 48.73 85.02 76.09 88.11 86.38 89.11 88.49 95.32 89.49 盐碱地 60.37 87.37 73.51 90.31 81.59 91.57 82.23 92.71 95.63 93.74 其他 52.60 72.03 78.61 77.82 81.57 83.96 88.46 88.19 91.93 98.95 Kappa 0.58 0.77 0.82 0.86 0.94 OA 0.64 0.81 0.84 0.89 0.95