Why do we study soil? Decreasing capacity of natural resources

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Why do we study soil? Deterioration of ecosystem and environment (incl. Land degradation)

Why do we study soil? The Changing Earth

Why do we study soil? Soil provides natural sink

What do we study? Soil provide meso- and micro- habitat for organisms

Why do we study soil? Soil provides shelter and preserves cultural heritage

Why do we study soil? Soil provides natural beauty

Why do we study soil? Are we less dependent on soils?

Why do we study soil? Urbanization---Urban soils Hydroponic culture– Organic farming Plastics---cornstarch plastics, polyesters or cottons

What is Soil Science? What is the role of soil science? Study of soil as an part of terrestrial ecosystem, environment, and integrated Earth surface System; Study of soil by physical, chemical and biological means and others; Study of soil in scales ranging from molecular to pedosphere; Study of soil in interaction with water, air, biomes, and human,etc.

Soil Science Soil - plant science: - ion uptake, soil fertility, nutrient transport, bioavailability; food quality Soil-water science: water translocation, water use efficiency; nutrient loading, drinking water quality Soil- air science: gas exchange, emissions, GHE, Global change

Soil Science Soil – material science: soil mechanics or dynamics, soil engineering; Soil – ecosystem science: soil ecosystems, stability of ecosystem. Biodiversity and ecological safety Soil - landscape science: soil associations, land use patterns, soil archeology ,etc

Closely related science Food Science Medicine & Health science: Archaeology

Role of Soil Science Basic discipline of natural sciences; Fundamental science of agricultural sciences; Core science of environmental and ecological sciences;

Role of Soil Science Impacts in: Land use planning; Help solve food supply,ex: Sandro Policy making - agriculture and environment protection; Consultancy: standards, restrictions, etc. WHO project