Water and Soil-Hydrodynamics and Geomorphology-The Connecting Bridge of Natural and Social Sciences

In the global environment, water and soil are the major resources for the lives of plants, animals and human-beings, and they are irreversible. The amounts, qualities and suitable distributions of these two resources and the degree of human disturbances on environment always determine the sustainability of the Earth. Water, called fluid, sends organics or source of nutrition and non-organic matter with flow motions, meanwhile deforms the boundaries of the geo-morphology by the hydrodynamic characteristics as the sedimentology. The interaction between hydrodynamics and geomorphology, called morpho-dynamics, reforms the boundaries as a new ecosystem for the ecology and the flood protection. In nature, environment has the ability to self-heal unless it is suffered a very unusual shock such as the human disturbance. These results will concern both natural and social science on regulations, regimes and the human responsibilities on conservation of ecosystem.

Keywords: water; soil; management; conservation; nature; society; ecology; ecosystem; hydrodynamics; geomorphology; sedimentology; morpho-dynamics;