แบบระบบระบายอากาศ

แบบระบบระบายอากาศ

ผลลัพธ์ (อังกฤษ) 1:

ventilation system

ผลลัพธ์ (อังกฤษ) 2:

ventilation system

ผลลัพธ์ (อังกฤษ) 3:

Overall, the XGBR model outperformed the existing algorithms in retrieving the mangrove AGB in a Vietnamese biosphere reserve. Previous studies reported that long-wavelength PolSAR data, such as the L and the P bands, are well correlated with mangrove forest structures. Among these data, crossed-polarized HV appears to be most correlated with biophysical attributes [13,66,67]. The variable-importance analysis revealed that crossed-polarization HV is more sensitive to mangrove AGB in the study area than HH polarization (Figure 6), consistent with previous results [26,29]. However, mangrove forests in a biosphere reserve exhibit unique stand structures and species compositions that may saturate multispectral and SAR sensors. Data saturation of multispectral sensors such as Landsat TM, ETM+ or OLI, and the S-2 sensor degrades the prediction accuracy of mangrove AGBs in dense forest canopies. The saturation range of multispectral data reaches 100–150 Mg ha−1 in complex tropical forests, much higher than in mixed and pine forest ecosystems (with a saturation range of >150 to