Presentation is loading. Please wait.

Presentation is loading. Please wait.

GES 175, The Science of Soils Lecture 1, Introduction.

Similar presentations


Presentation on theme: "GES 175, The Science of Soils Lecture 1, Introduction."— Presentation transcript:

1 GES 175, The Science of Soils Lecture 1, Introduction

2 CA State Soil Fine, mixed, active, thermic Abruptic Durixeralfs San Joaquin Series

3 Smectite Soil NE Montana VertisolHawaiian Oxisol Iron and Al-oxide Rich A Tour of Soil Types

4 Soils of the Mid-West Mollisol

5 Soils of the Everglades Spodosol

6 Soils of the North East and North West Spodosol

7 Soils of the Tropics Oxisol

8 Soils from Wetlands Histosol

9 Soils from Recent Landscapes Inceptisol

10 Soils Near Recent Volcanic Activity Andisols

11 Course Objectives To comprehend the physical, chemical, and biological processes functioning within soils To define factors influencing elemental (contaminant and nutrient) cycling within terrestrial ecosystems To obtain an appreciation for soils as dynamic, non- renewable natural resources To learn the appropriate use of the terms “soil” and “dirt”

12 Perceptions of Soil Agriculture Environment Science

13 Soil Development

14

15

16

17

18 ? Soil Profile Development

19 The Beginning

20 n Soil Profile Development  contains characteristic layers called horizons Bedrock A E B C Bedrock soil development

21 Soil Forming Factors Time Parent Material Climate Biota Topography Time Parent Material Climate Biota Topography

22 What Defines a Soil? The difference between “Soil” and “Dirt”? “ dynamic natural bodies having properties derived from the combined effects of climate and biotic activities, as modified by topography, acting on parent material over periods of time”

23 Soil is a living entity that is continually undergoing development; dirt is stagnant remnants of organic and mineral matter Soil Ecosystem

24 SOIL COMPONENTS

25 Major Components. representative, medium-textured surface soil (by volume)

26 Major Components. representative, medium-textured surface soil (by volume)

27 Major Components. representative, medium-textured surface soil (by volume) * for optimum plant growth

28 Soil Organisms

29 Soil Minerals

30 Soil Chemistry

31 Soil Color Originates from the Molecular Framework

32 Unique and Important Properties of Soils

33 Fine, mixed, active, thermic Abruptic Durixeralfs Soil : Natures Filter and Storage Bank

34 Fertilizer H2OH2O Retention within Soils Nitrogen, Phosphorus, Potassium... * Soils act as a storage bank for plant nutrients * retain water * filter contaminants

35 Cr H2OH2O Retention within Soils Cr

36 Consequences of Misuse

37

38

39 Transformation of Waterbodies

40 Acid Mine Drainage

41

42 Result of Acid Mine Drainage


Download ppt "GES 175, The Science of Soils Lecture 1, Introduction."

Similar presentations


Ads by Google