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Do Now: A forest can be considered a natural resource. Why do you think this is so?. Human Activity. EQ - What are the effects of human activity on erosion and natural resources?. EQ - What are the effects of human activity on erosion and natural resources?.

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Human activity

Do Now:

A forest can be considered a natural resource.

Why do you think this is so?

Human Activity

EQ -What are the effects of human activity on erosion

and natural resources?


EQ - What are the effects of human activity on erosion

and natural resources?

GPSWhich Standards are students learning in this unit?

S6E5. Students will investigate the scientific view of how the earth’s

surface is formed.

i. Explain the effects of human activity on the erosion of the earth’s

surface.

j. Describe methods for conserving natural resources such as water,

soil, and air.

S6E6. Students will describe various sources of energy and with their

uses and conservation.

a. Explain the role of the sun as the major source of energy and its

relationship to wind and water energy.


What is erosion
What is erosion?

  • The natural movement of sediment from one place to another.


What human activities cause erosion
What human activities cause erosion?

  • Humans cause erosion by logging, mining, farming, and construction.


What is logging
What is logging?

  • Clear-cutting – cutting down all trees in an area.

  • How logging contributes to erosion:

  • Tree roots die

  • Decay takes place

  • Nothing is left to anchor soil

  • Rain washes soil away


What is mining
What is mining?

  • Strip Mining – removes surface

  • Open Pit – cuts large pits

    Both of these remove plant roots that anchor soil.


What is farming
What is farming?

How farming contributes to erosion:

Pulls nutrients out of the soil, leaving

the soil vulnerable to erosion.

Dust Bowl –

  • Removed grasses to plant wheat

  • Drought – little or no rain

  • Wheat died

  • Wind blew soil away

  • Only dust left


What is construction
What is construction?

  • Clear land to build

    This removes plants and roots that anchor soil.


Key questions

Key Questions

What is soil conservation?

What methods prevent soil erosion?

What is a cover crop?

What is crop rotation?

What is contour plowing?

What is terracing?

What is windbreak?


Soil conservation various methods humans use to take care of the soil

What is soil conservation?

Soil Conservation-various methods humans use to take care of the soil.


What methods prevent soil erosion
What methods prevent soil erosion?

Methods to prevent soil erosion-cover crop, crop rotation, contour plowing, terracing, and windbreak.


What is a cover crop
What is a cover crop?

Cover Crop-a crop that is planted in between harvests to reduce erosion and replace nutrients. Ex:soybeanand clover


What is crop rotation
What is crop rotation?

Crop Rotation-change crops from year to year so that nutrients do not get depleted


What is contour plowing
What is contour plowing?

Contour plowing-rows in a field are plowed

in curves instead of straight lines.


What is terracing
What is terracing?

Terracing-one steep field is changed into a series of smaller fields.


What is windbreak
What is windbreak?

Windbreak-planting trees around a field to

prevent wind erosion.


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