Joelyn K. Foy

Research Associate

Texas Agricultural Experiment Station

Vernon, Texas

Why Natural Resources?What do natural resources have

to do with the producer?

Part A

Introduction

Why Natural Resources?What do natural resources have

to do with the producer?

Source: Jenny, p. 358

Over time, soil and vegetation develop … unless

Source: Jenny, p. 358

… the process is disturbed

Ecosystem

Forest Pine beetle invasionLack of natural fireCatastrophic fireNot harvestingClear-cuttingDroughtFloods

**cropping**

Disturbance

Ecosystem

Range Exotic plant invasionBrush invasionLack of natural fireCatastrophic fireNot grazingOvergrazingDroughtFloods

**cropping**

Disturbance

Ecosystem Disturbance

Crop orAgroecosystem

Weed invasionInsect invasionDroughtFloods

common brome

impenetrable mesquite

fuel for fire – but no prescription!

end of part a