1. Why do we study soil?
Decreasing capacity of natural resources

2. 四海之内，莫非王土？

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

4. Why do we study soil?
The Changing Earth

5. Why do we study soil?
Soil provides natural sink

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

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

8. Why do we study soil?
Soil provides natural beauty

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

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

11. 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.

12. 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

13. 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

14. Closely related science
Food Science
Medicine & Health science:
Archaeology

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

16. 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