Satellite time series data reveal interannual and seasonal spatiotemporal evapotranspiration patterns in China in response to effect factors

The spatiotemporal patterns of evapotranspiration (ET) are the basic problem circulation water resources. Several studies have reported ET. However, there is a lack systematic analysis seasonal ET over large areas, and factors affecting under variable environmental conditions still uncertain. In this study, flux observation data was used to evaluate performance MOD16 (the MODIS global product) different conditions, then were analyze interannual variability its spatial distribution characteristics in China. Furthermore, path change results can be summarized as follows: (1) sufficiently reliable meet precision requirements for research; (2) vegetation China showed significant temporal differences at timescales, respectively, with an average annual value 359.61 mm between 2001 2018; (3) upward trend 2001–2018, rate 2.95 mm/year, exhibited various seasons types; (4) surface main southeast China, while northwest, variation affected by multiple factors. Under climate cover change, several strategies should implemented deal sustained increase consumption, example, adjustment agricultural production structure optimization planting structure. law obtained study reference resource regulation management.