Chapter 8: Land Section 8-2: How We Use Land. As the human population grows, ever-increasing amounts of land and resources are needed to support it.

Slides:

Advertisements

Similar presentations

Chapter 14, Section 3: Land Management & Conservation

Advertisements

Land Section #3: Land Management & Conservation. Farmlands land used to grow crops or fruit 100 million hectares in the U.S. threatened by development.

Environmental Science Chapter 14 “Land”

Land Chapter 14. Land Use, Land Cover  _________________: farming, mining, building cities and highways and recreation  ___________________: what you.

Land Chapter 14.

Section 3: Land Management and Conservation

14.3. Bellringer Land Management The main categories of rural land are farmland, rangeland, forest land, national and state parks, and wilderness. –

HUMAN IMPACT ON LAND BY: MR. MERINGOLO. WHY IS LAND SO IMPORTANT? SUPPLIES A SOLID SURFACE FOR BUILDINGS AND ROADS THE SOIL IN LAND PROVIDES NUTRIENTS.

DEFORESTATION What is deforestation , what causes deforestation, and what effect does it have on the people of Africa?

Deforestation is the cutting down or burning of trees.

Chapter 18 Land Resources and Conservation. Vocabulary  Urban- city/high density  Rural- sparsely populated areas.

The stock is the present accumulated quantity of natural capital. It is a supply accumulated for future use; a store. The natural income is any sustainable.

By:SAM_CR7, SAM_newcastle, SAM_maddie, Sam_Tanker89.

Land Chapter 14.

1.15 The Impacts of Human Industry on Ecosystems (Sec 5.4 p )

AGEC/FNR 406 LECTURE 31 Former tropical forest…. TROPICAL FORESTS Located between tropics of Capricorn and Cancer At least 10 percent woody cover Important.

Rainforests around the world Rainforests layers Tallest trees of the rainforest, over 20 ft, with the most sunlight Primary layer, home to many animals.

Land. How We Use Land Land use and cover –What you find on a patch of land Farm, forest, city, wetlands, homes, etc… –Urban Buildings and roads > 2,500.

Bellringer Why does wilderness need to be preserved?

LandSection 3 Section 3: Land Management and Conservation Preview Bellringer Objectives Land Management Farmlands Rangelands Problems on the Range Maintaining.

DEFORESTATION Student: Vanesa A. Teacher: Karmen B.

LandSection 3 Rural Land Management The main categories of rural land – farmland –rangeland –forest land –national and state parks, and wilderness Condition.

Deforestation and Tropical Rainforests

Land Pollution.

 The main categories of rural land are farmland, rangeland, forest land, national and state parks, and wilderness.

Chapter 14. Objectives 1.Distinguish between urban and rural land. 2.Describe three major ways in which humans use land. 3.Explain the concept of ecosystem.

Land Chapter 14. How we use land  Land usage- –Rangeland= used for grazing and wildlife –Forest land= used for harvesting wood, wildlife, fish, and other.

ENVIRONMENTAL SCIENCE LAND MANAGEMENT AND CONSERVATION.

LandSection 3 Section 3: Land Management and Conservation Preview Bellringer Objectives Land Management Farmlands Rangelands Problems on the Range Maintaining.

Forests, Parks, and Landscapes 1) Forests as Resources: Many Conflicts -Problems arise as to the “proper” use of forests in modern society Forests have.

Land Management and Conservation /08. Keeping rural lands free from urbanization and in good shape is important because of the environmental services.

LAND MANAGEMENT AND CONSERVATION More Rural Land is Needed Population is rising! Types of rural land: Farm Range Forrest National and State Park.

Environmental Science Chapter 8 Land Use Notes #2.

How We Use Land What you should know? How do humans use land as natural resources How logging, farming, and mining affect the land How can lands be logged,

Ecosystems Ecosystem Change Long-Term Changes. Long-Term Changes – The Big Ideas Ecosystems do not stay the same forever; they change over time. Changes.

Learning about Rainforest. WHAT IS A RAINFOREST  These incredible places cover only 6 % of the Earth's surface but yet they contain MORE THAN 1/2 of.

The Beauty of the Amazon The Amazon Jungle is the world’s largest tropical rainforest.

Land Use Ch. 14. Land Use and Land Cover Urban land –Land covered mainly with buildings and roads Rural land –Land that contains relatively few people.

 Farmland  Rangeland  Forest land  National and state parks  Wilderness  The condition of rural land is important because of the ecological services.

Section 3: Land Management and Conservation

Chapter Fourteen:LAnd

Lesson 4 Forest Resources.

Deforestation & CONSERVATION

Warm- up Share response to exit ticket… Brainstorm in pairs…facts about the Amazon Rainforest. List one fact on a post-it and place it on class chart.

Section 3: Land Management and Conservation

Land Management And Minerals

Section 3: Land Management and Conservation

Section 3: Land Management and Conservation

Bellringer Why does wilderness need to be preserved?

Objectives Explain the benefits of preserving farmland.

Section 3: Land Management and Conservation

Section 3: Land Management and Conservation

Section 3: Land Management and Conservation

Classroom Catalyst.

Section 3: Land Management and Conservation

Land Use Chapter 14 Part 4.

Section 3: Land Management and Conservation

Section 3: Land Management and Conservation

Section 3: Land Management and Conservation

Section 3: Land Management and Conservation

Chapt 8 Environmental Science

Environmental Issues in Africa

Section 3: Land Management and Conservation

Section 3: Land Management and Conservation

Section 3: Land Management and Conservation

Resource Management.

Section 3: Land Management and Conservation

What is happening here? Deforestation in Borneo.

Presentation transcript:

Chapter 8: Land Section 8-2: How We Use Land

As the human population grows, ever-increasing amounts of land and resources are needed to support it.

Non-urban Land Uses Forests – paper, furniture, home construction Grasslands – support livestock, farmland Mineral resources – power engines, become skyscrapers/electronic devices

But as our population grows, non- urban land areas are put under great stress; often, the usefulness of these areas is even destroyed by overuse.

FACTS – HARVESTING TREES The world-wide average is 1,800 cu. cm of wood per person per day. In the United States, the use is 3.5 times greater than the world’s consumption. This is the equivalent of each person in the U.S. cutting down a 30-m-tall tree every year.

Also, 1.5 billion people in developing countries depend upon firewood as their major source of fuel.

In some places, it’s not the trees but the forest land that is valuable – the trees are removed to make way for farming.

Each year at least 2 million hectares or 4.9 million acres of forest are cut down worldwide.

Deforestation involves clearing trees from an area without replacing them –this occurs most commonly in tropical rainforests.

Because the poor soil in tropical rain forests can usually support crops for only a short period of time, farmers must continually move from one parcel of land to the next.

This farming method is known as slash and burn, and is one of the oldest known forms of agriculture.

Methods of Harvesting Trees Clear cutting – process that involves removing all of the trees from a land area. Selective cutting – involves cutting only the middle-aged or mature trees.

Clear cutting Destroys wildlife habitats. Increases soil erosion. Diminishes the beauty of forests. It is popular because it is the least expensive way of timbering. Requires very little road building to harvest the trees.

CLEAR CUTTING

Selective cutting Main alternative to clear cutting. Trees are removed from forest individually or in small groups. With time, removed trees are replaced naturally by reseeding. It has less of an impact on the forest ecosystem. Requires roads to harvest a given amount of timber – causes soil erosion.

Reforestation is the process of replacing trees that have died or been cut down.

Some governments require reforestation after timber is removed from public land; however, worldwide, more than 90% of all timber comes from forests that are not managed.

Reforestation is required on public lands in the U.S., but this law is not enforced, and most of the country’s forest land is privately owned.