Outline from Feb 21st Lecture:

 

               Look at the Fragmentation:

 

 Patches and pieces of land are being covered with development           

 

                      Spatial Fragmentation
• average patch size decreases –
• average patch density decreases –
• patch shape may change
• core area decreases –
• distance between patches increases (isolation) –

                                                   
                  Ecological Fragmentation


• amount of edge increases, then decreases (after > 50% area lost)

       Why ---We cut into a nice patch – now there is more edge, cut roads in and houses, and now that we lost more forest land, we loose so much land that the amount of edge drops b/c there is no land

                 ( very complicated problem)
• corridors become narrower and disconnected –
• marginal lands are impacted (e.g. riparian corridors) – river corridors are squeezed
• landscape connections are lost –
• leads to impoverished, homogeneous landscape –

            Planning and Design Guidelines
• use native plant species whenever possible -
• emulate natural plant communities –
• genetic diversity (seeds, not clones) –
• appropriate genetic provenance
• think regionally, act locally
• avoid using invasive exotics –
• avoid fragmenting large patches –
• preserve sensitive ecosystems
• focus on ecosystems and habitats, not species –
• keep linkages natural ––
• wide vegetation buffers along major water courses
• maintain a few large patches –
• provide for species movement between isolated                                                                      patches –
• maintain heterogeneous bits of nature in                                                                       developed areas  -


                 5 Planning Rules of Thumb


• Minimize Edge – try to avoid creating edge in the first place
• Minimize Fragmentation – chop it up where large chunks are left
• Maximize Habitat – situations where u maximize all opportunities
• Protect Corridors – need to keep Matrix
• Maximize Habitat Diversity – all species

 

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Site Inventory and Analysis

 

INVENTORY – physical landscape

  • understanding the conditions of the site/jurisdiction and its context
  • putting it all together

 

What if:

    Your inventory doesn’t “mesh” with your goals?

            You missed something …… A hidden cavern, some wetlands

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CHAPTER 4

 

J The resource of the DAY J  

 

           PRIZM DEMOGRAPHICS GROUPS

CLARITAS – possibly the worlds largest commercial information provider – has figured out all the types of people in the US

            They have the groups (62) called Prizm Groups – cute little names and icons-                            -further broken into 15 social groups

  • http://houseandhome.msn.com

            -Be sure to follow the neighborhood links

 

 

 

 

 

HUMAN COMMUNITY INVENTORY AND ANALYSIS

 

 

            To understand the community:

 

*In order to understand the community for high planning is being preformed, planners need to understand the DEMOGRAPHICS

            How old are the citizens?

            Are there racial division?

            Are most people renters or owners?

What will the community be like in 20 years?

 

*   In order to understand the community for which planning is being preformed planners need to understand the economy

 

The economic base helps identify community needs

                        Impacts housing

                        Impacts Stability

                        Impacts environmental concerns              

 

 

               What kinds of Info can we use?

 * Quantitative             

* Qualitative    

* Existing data

            US Census

* New info from existing data

            Demographic clusters

            Likely age trends for 2020

* Original Information

            Survey of local park users

 

                        Population Studies

Trends

Characteristics

Projections