石灰岩特有植物海南凤仙花潜在适宜生境分布模拟

宁瑶,雷金睿,宋希强,韩淑梅,钟云芳

Modeling the potential suitable habitat of Impatiens hainanensis, a limestone-endemic plant

NING Yao,LEI Jin-Rui,SONG Xi-Qiang,HAN Shu-Mei,ZHONG Yun-Fang

表2 4种评估指标(受试者工作特征曲线下面积、卡帕系数、真实技巧统计值、总体精度)的评价标准

Table 2 The criteria of the four evaluate indexes(area under the receiver operating characteristic curve (AUC), kappa coefficient, true skill statistic (TSS), overall accuracy)

评估指标 Evaluate index 失败 Fail 很差 Very poor 一般 Common 较准确 Good 优秀 Excellent 本实验结果值(平均值±标准偏差) Result value of this experiment (mean ± SD) AUC 0.50-0.60 0.60-0.70 0.70-0.80 0.80-0.90 0.90-1.00 0.98 ± 0.02 Kappa 0-0.40 0.40-0.55 0.55-0.70 0.70-0.85 0.85-1.00 0.96 ± 0.08 TSS 0-0.40 0.40-0.55 0.55-0.70 0.70-0.85 0.85-1.00 0.96 ± 0.08 Overall accuracy 0-0.40 0-0.55 0.55-0.70 0.70-0.85 0.85-1.00 0.98 ± 0.04