Eco-environmental quality assessment of the artificial oasis of Ningxia section of the Yellow River with the MRSEI approach

Remote sensing ecological index (RSEI) has the advantages of rapid, repeatable and relatively accurate in regional eco-environment quality assessment. Due to lack consideration interaction adjacent analysis units RSEI calculation, there is a few uncertainties assessment results. Based on RSEI, landscape diversity (LDI) was introduced, which considered heterogeneity caused by difference between unit one, rebuilt modified remote (MRSEI) evaluate artificial oasis Ningxia section Yellow River. The results showed that area Fair Poor grades low MRSEI year (2000) greater than other grades, Moderate high (2020). conversion characteristics different were grades. During study period, improved, composition pattern land use types had significant impact MRSEI. Introduction LDI-improved can not only include heterogeneous effect but also consider spatial scale LDI make evaluation more credible. However, some factors (e.g., LDI, NDVI, NDBSI) represent accumulation surface status over long-time scales, while others Wet LST) reflects short-time features surface. Therefore, how eliminate uncertainty temporal mismatch challenge for applications.