Unit 5 Notes PDF

**[Types of Land Use]** **BMP** - Best Management Practices: - - - **[Forests]** ========================= **Managing and Sustaining Forests** - - - - - - - **Global Outlook: Extent of Deforestation** - - **Harvesting Trees** - - - - - - ![](medi...

**[Types of Land Use]** **BMP** - Best Management Practices: - - - **[Forests]** ========================= **Managing and Sustaining Forests** - - - - - - - **Global Outlook: Extent of Deforestation** - - **Harvesting Trees** - - - - - -  - - - - **Solutions** - We can use forests more sustainably by emphasizing: - - - - - - **Types and Effects of Forest Fires** - - - - -  - - - - **Tropical Deforestation** - - **Why should we care about the loss of tropical forests???** - - - - - **Tropical Deforestation** - - - **[Grasslands]** ============================ - - - - - - - - - - - - **[Recreation and Wildlife Conservation]** ====================================================== - - - - - - - - - - - **Nature Reserves** - - - - - - - - - **Nature Reserves** - - - - **[Mining]** ======================== **Nonrenewable Mineral Resources** - - - - - - - - - - - -  **Environmental Effect of Mineral Resources** - - +-----------------+-----------------+-----------------+-----------------+ | Type of Mining | Description | Example of | Problems | | | | resource | | +=================+=================+=================+=================+ | **Placer | - - | Gold | Modern methods | | Mining** | | | (dredging) can | | | Ex: California | | disrupt | | | Gold Rush | | ecosystem, or | | | | | may involve use | | | | | of toxic | | | | | substances | +-----------------+-----------------+-----------------+-----------------+ | **Area Strip | Earth movers | Coal, minerals, | Often leaves | | Mining** | (bulldozers, | phosphate | highly erodible | | | excavators) | | hills of rubble | | | strip away | | called spoil | | | overburden, and | | banks. | | | giant shovels | | | | | removes mineral | |  | | | | | | | | | | Causes water | | | | | pollution, dam | | | | | up stream or | | | | | rivers | +-----------------+-----------------+-----------------+-----------------+ | **Contour Strip | Same as Area | Coal | Unless the land | | Mining** | Strip mining | | is restored, a | | | but done on | | wall of dirt is | | | hills or | | left in front | | | mountains. | | of a highly | | | Striping away | | erodible bank | | | the overburden | | called a | | | and grabbing | | highwall. | | | material. | | | | | | | Cut away the | | | | | hillside, | | | | | digging up the | | | | | coal seam | | | | | (layer of coal) | | | | | and leaves | | | | | behind a huge | | | | | wall. | +-----------------+-----------------+-----------------+-----------------+ | **Open Pit | Machines dig | Rock, | Toxic | | Mining** | holes and | Sandstone, | groundwater can | | | remove ores, | Granite, Sand, | accumulate at | | | sand, gravel, | Gravel | the bottom. | | | and stone. (Dig | | | | | a pit) | | When it rains, | | | | | it mixes with | | | | | the chemicals | | | | | and makes stuff | | | | | like sulfuric | | | | | water which is | | | | | toxic to plants | | | | | and stuff. | | | | | | | | | |  | +-----------------+-----------------+-----------------+-----------------+ | **Mountaintop | Machinery, and | Coal | The resulting | | Removal** | explosives, | | waste rock and | | | removes the | | dirt are dumped | | | tops of | | into the | | | mountains to | | streams and | | | expose coal. | | valleys below. | +-----------------+-----------------+-----------------+-----------------+ | **Subsurface | Used when | Gold, lead and | Very | | Mining** | mineral | silver | **dangerous** | | | resource is | | for workers. | | | found deep | | Can also lead | | | underground. | | to subsidence | | | Vertical mine | | (sinking in of | | | shaft are dug | | an area, | | | deep into the | | collapsing), | | | layers of rock; | | damage to | | | elevators carry | | groundwater, | | | miners down to | | acid mine | | | mine. | | drainage (AMD) | | | | | | | | (Think of like | | (This is a | | | in the movies) | | stream) | | | | | | | |  | | | +-----------------+-----------------+-----------------+-----------------+  - - - - - - - - - **Supplies of Mineral Resources** - - - - - - **[Urbanization]** ============================== **Type of land use** **Description/Definition** **For example:** **Advantages/Benefits** **Disadvantages/Problems** ---------------------- ------------------------------------------------------------------ ------------------ ------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------------------- Urban/Suburban A densely populated area in a city/town. New York City Economy is high, easy to communicate, land efficiency, multiple cultures and ideas. Overcrowding, pollution, resource quality is bad due to the large number of people, animals habitat being destroyed. Rural/Exurban A less densely populated area used mostly for agricultural needs Wyoming Not as much pollution, less compacted, farming and agriculture rise. Land is used and possibly degraded by humans through farming practices. - - - - - 1. a. b. 2. c. 3. a. b. 4. d. 5. 6. e. f. 7. - 1. a. 2. 3. **Solutions can use strategies for...** [Remediation] - [Mitigation] -