Using MODIS-NDVI Time Series to Quantify the Vegetation Responses to River Hydro-Geomorphology in the Wandering River Floodplain in an Arid Region

Vegetation, hydrology and geomorphology are three major elements of the floodplain ecosystem on Earth. Although normalized difference vegetation index (NDVI) has been used extensively to characterize growth, vigour biomass, methods for quantifying various distinct responses hydro-geomorphological changes in different lateral belts arid regions still needed. In this study, Linhe reach was divided into four based their characteristics, Moderate Resolution Imaging Spectroradiometer (MODIS)-NDVI time series statistical indicators were characterise changing patterns growth belts. The response river hydro-geomorphology each belt analysed. result showed that average maximum NDVI value regular inundation area 0.23 higher than other correlation between water persistence peak significant (ρ = 0.84), indicating contrast highly frequent or extremely rare inundation, provides benefits floodplains. Continuous may cause decreased productivity. Overall, our results suggest greenness is from edge floodplain. Thus, a better understanding interactions hydro-morphology resource management arid-region