ENVIRONMENTAL SCIENCE 2013-2014 LAND MANAGEMENT AND CONSERVATION.

Slides:

Advertisements

Similar presentations

Chapter 14-Land How We Use Land.

Advertisements

Chapter 14, Section 3: Land Management & Conservation

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”

Environmental Science Chapter 14 Test

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. –

Do Now  What are examples of private (individual) and public (collective) ownership of land and other objects?

Land Chapter 14.

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.

Environmental Science Ch. 14

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.

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

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.

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.

Land. How do we determine what we are going to use land for? What are some of the different things that land is used for in this area? What are some things.

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

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.

Land, Public and Private. Human Activities Affecting Land and Environment  Extensive logging – mudslides  Deforestation – climate change  Paving –

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.

Land and Land Use Notes These notes and the “Soil Lab notes” are what you need to know for this Unit.

Section 3: Land Management and Conservation

Chapter 14 Land.

Land Management and Conservation.

Land Management.

Chapter Fourteen:LAnd

Chapter 14 Section 1 How We Use Land Land Use and Land Cover

Land Chapter 14.

Land Management and Conservation

Section 3: Land Management and Conservation

Land Management And Minerals

Section 3: Land Management and Conservation

Land Chapter 14.

Section 3: Land Management and Conservation

Land Use and Agriculture

Bellringer Why does wilderness need to be preserved?

Section 1: How We Use Land

Objectives Explain the benefits of preserving farmland.

Section 3: Land Management and Conservation

Chapter 14 Land Use and Management.

Section 3: Land Management and Conservation

Land Management.

Section 3: Land Management and Conservation

Classroom Catalyst.

Chapter 14 Land.

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

Land Chapter 14.

Section 3: Land Management and Conservation

Section 3: Land Management and Conservation

Land Management.

Section 3: Land Management and Conservation

Section 3: Land Management and Conservation

Land Management.

Section 3: Land Management and Conservation

Chap. 14 Land Mrs. Brown Feb.7th, 2019.

Presentation transcript:

ENVIRONMENTAL SCIENCE LAND MANAGEMENT AND CONSERVATION

FARMLANDS Land that is used to grow crops and fruit. The U.S. contains more than 100 million hectares of prime farmland. Urban development threatens some of the most productive farmland – Farmland Protection Program to help protect farmland in danger of being paved over or otherwise developed.

RANGELANDS Land that supports different vegetation types that is not used for farming. Grasslands Shrublands Desert Most common use is for grazing of livestock.

RANGELANDS Problems on the range Overgrazing – allowing more animals to graze in an area than the range can support. Too many plants are eaten and the land becomes degraded. Once the plants are gone, there is nothing to keep the soil from eroding.

RANGELANDS Maintaining the Range Much of the rangeland in the U.S. is public land maintained by the federal government. Land is leased to ranchers. Limiting herd sizes. Leave rangeland unused for periods of time so the vegetation can recover. Dig several waterholes to avoid overgrazing around a single waterhole.

FOREST LANDS Harvesting Trees People use lots of wood. Person in the U.S. uses enough that is the equivalent of cutting down a tree that is 30 m tall every year. Three categories of trees: Virgin forest – forest that has never been cut. Native forest – forest that is planted and managed. Tree farms – areas where trees are planted in rows and harvested like other crops.

FOREST LANDS Harvesting trees Clear-cutting – process of removing all of the trees from an area of land. Selective cutting – process of cutting and removing only middle-aged or mature trees. Selective cutting is much more expensive, but less destructive.

FOREST LANDS Deforestation The clearing of trees from an area without replacing them. Most countries become severely deforested as populations expand and the demand for products increases. Reduces wildlife habitat. Increases soil erosion.

FOREST LANDS Deforestation Rate of deforestation is particularly high in tropical rain forests. If trees are not replanted, natural resources are steadily depleted.

FOREST LANDS Reforestation The process by which trees are planted to re-establish trees that have been cut down in a forest land. Some farmland that was no longer productive was reforested and is doing well.

PARKS AND PRESERVES Public lands have many purposes. National parks Leased to private companies for logging, mining, and ranching. Maintained for hunting and fishing Wildlife refuges Protecting endangered species

PARKS AND PRESERVES Wilderness An area in which the land and the ecosystems it supports are protected from all exploitation. 474 regions covering almost 13 million hectares (32 million acres) in the U.S. Open to hiking, fishing, boating (without motors), and camping.

PARKS AND PRESERVES Benefits of protected areas Keeps species from going extinct. Provide recreation. Serve as outdoor classrooms and research laboratories.

PARKS AND PRESERVES Threats to protected areas More people visit national parks and wilderness areas each year and leave their mark. Litter and traffic jams. Urban areas and industries are often close enough to affect them.

PARKS AND PRESERVES