浙江滨海湿地互花米草生物量遥感估算模型研究

杨晓芜,满卫东,刘明月,张永彬,郑浩,宋敬茹,康志强

Estimation Model of Spartina alterniflora Aboveground Biomass by Remote Sensing in Zhejiang Coastal Wetland

Xiaowu YANG,Weidong MAN,Mingyue LIU,Yongbin ZHANG,Hao ZHENG,Jingru SONG,Zhiqiang KANG

表4 互花米草AGB单变量不同估测模型精度对比

Table 4 Comparison of accuracy of Univariate different estimation models for AGB of S.alterniflora

变量 建模 验证 P R2 RMSE/(g/m2) MAE/(g/m2) R2 RMSE/(g/m2) MAE/(g/m2) PVI 0.614 134.687 109.443 0.386 241.315 191.072 0.000 NDVI 0.577 310.757 253.843 0.219 411.007 309.2383 0.000 1/B1 0.615 131.285 118.069 0.582 218.655 198.190 0.000 1/B2 0.606 143.958 114.373 0.184 278.128 228.627 0.000 1/B4 0.598 137.499 102.710 0.333 251.534 214.040 0.000 B2/B3 0.600 150.774 114.163 0.117 289.366 218.979 0.000 B3/B5 0.566 142.851 114.554 0.264 264.268 188.622 0.000 B4/B5 0.584 142.263 116.055 0.317 254.439 190.151 0.000 B4/B6 0.577 141.100 117.153 0.324 253.262 190.079 0.000