Abstract: With the ecohydrological processes of forest ecosystems as the research focus, we introduced the relevant concepts and development to give a review on the topic. We discussed the ecohydrological processes, influencing factors and ecohydrological models of different interface layers (canopy, litter layer and soil layer) in forest ecosystems. We also reviewed the evapotranspiration process, soil and water conservation, water quality purification and material cycling process. Future studies should address the following issues: (1) The effects of functional traits and environmental factors in different interface layers on water saving, circulation, infiltration and runoff process, and the underlying mechanisms. (2) The coupling mechanisms of soil and water conservation, water quality purification, and element cycling. (3) The relationship between ecohydrological processes and energy flow and material cycling. (4) The ecohydrological processes should be studied on temporal and/or watershed scale(s). Overall, the future research should strengthen the multi-disciplinary, multi-field and multi-scale integrated research on forest ecosystems. Combining the modern hightech approaches to examine the effects of the functional traits of different vegetation types on ecohydrological processes and mechanisms will provide a scientific support for the management of forest ecosystems.

Key words: dynamic assessment of ecological risk, long-short term temporal dimension, learning vector quantization neural network, coal-mining city.