Landscape Typology in the San Gabriel Watershed

Phase 1:  Analysis          

 

Our studio section will be working as a collective team for the purposes of gathering and analyzing data about the watershed.  Each member of the team will assume specific responsibilities in preparation for a final report to the class on Friday, April 23rd.  You will be graded on that day with regard to presentation of this information in its final form.  This grade constitutes 30% of your grade for the GIS component of this course and you will be evaluated with regard to the thoroughness of your analysis, your use of graphics and maps for communication, and the extent to which you satisfactorily answer the questions for your topic as outlined below.

 

Modeling:  As we initiate this analysis, each student will read John Lyle’s article on the utility of semi-formal modeling, to gain familiarity with the concepts of modeling in planning and design.  This paper will be the topic of in-class discussion on Monday, April 5th and should be a good foundation for conducting your landscape analyses. 

 

Expected Products:  It is expected that analysis for each topic will be presented in as graphic a form as possible.  Maps are critical for showing distributions within the watershed and are essential for making future landscape planning decisions.  Maps prepared using geographic information systems are expected wherever possible.  Diagrams are critical for illustrating processes and landscape change.  Diagrams are expected wherever possible.  Where appropriate, analysis should be quantified, to provide a better understanding of issues.  Supporting text should also be provided, but kept to a minimum, as graphics should convey most of the ideas.  Your diagrams and maps will be integrated into your final poster product for this class.  As such, they are expected to be professional quality.  Graphics adapted from books, articles, web pages, etc., are expected to be credited to their source, and re-drawn or reproduced in some fashion which assures graphic consistency.  The use of photographs to supplement your analysis is strongly encouraged.  All work will be prepared in or scanned into computer for use in PowerPoint presentation.  Each category below will have 5-10 minutes to present on April 26th.

 

1. Landform                                                                                Students (2) _______________
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What are the physical processes that have shaped the landform of the watershed?  How has human activity in the watershed altered these processes over time?  (Diagrams)

 

Are there special resources within the watershed that are dependent on geomorphic processes? Are these resources adversely affected by human activity? (Diagrams and Maps)

 

How do slopes vary throughout the watershed?  Are there areas of steep slopes within the watershed that present limitations for human activity? (Maps)

 

What are the soil characteristics throughout the watershed? How do these characteristics affect key issues such as infiltration, building suitability, etc?  (Maps and Diagrams)

 

 

2. Atmosphere                                                                            Students (2) _______________
_______________

 

What daily temperatures are characteristic of the watershed?  How do they vary throughout the year? (Charts/Graphs)  Do they vary throughout the watershed? (Maps)

 

What are the annual precipitation levels expected in the watershed?  How is precipitation distributed throughout the year? (Charts/Graphs)  Do levels vary throughout the watershed? (Maps)

 

What are the prevailing wind/weather patterns throughout the watershed? Are there locations in the watershed where winds are concentrated?  Do these patterns vary throughout the year? (Diagrams and/or Maps)

 

How does solar access vary throughout the watershed?  Are there some slopes which are more conducive to solar gain? (Diagrams and Maps)

 

Are there any topoclimatic variations throughout the watershed (including heat islands)? (Diagrams and Maps)

 

Are there any air quality issues associated with the surface and sub-surface water within the watershed?  What are the sources of these issues?  What are the impacts to human activity? (Diagrams and/or Charts/Graphs)

 

3. Water                                                                                      Students (2) _______________
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How does the hydrologic cycle function within the watershed?  Has past human activity altered this cycle in significant ways? (Diagrams)

 

What are the major stream/drainage systems in the watershed (including sub-watersheds)?  Have these systems been altered by human activity (Dams, channelization, etc.)? (Maps and Diagrams)

 

 

Are there groundwater resources (aquifers) that are (or may be) used to support human activity? Is salt-water intrusion a problem? (Maps and/or Diagrams)

 

Are there any major aquifer recharge areas within the watershed? (Maps)  How has human activity impacted aquifer recharge capabilities (impervious surface, wetland loss, etc.) (Diagrams)

 

Are there any water quality issues associated with the surface and sub-surface water within the watershed?  What are the sources of these issues?  What are the impacts to human activity? (Diagrams and/or Charts/Graphs)

 

4. Vegetation                                                                              Students (2) _______________
_______________

 

Historically, what were the major plant communities found in the watershed? (Maps)  What are the characteristics that influenced their distribution (climate, elevation, slope aspect, water availability, landscape disturbance, etc.)? (Diagrams)

 

What has been the impact of human activity on the native plant communities in the watershed?  Are any plant species or communities threatened or endangered? What human activities threaten these species?  (Maps and Diagrams)

 

Are there remnant patches of indigenous vegetation?  Are these connected or isolated?  (Maps)

 

Are any human-introduced species invading the watershed in a significant manner? (Maps and Diagrams)

 

 

5.  Wildlife                                                                                  Students (2) _______________
_______________

 

Historically, what was the major wildlife found in the watershed?  How has human activity impacted the presence of these species? Has human activity altered the ecosystem balance of animal species? (Maps and/or Diagrams)

 

Are any animal species threatened or endangered within the watershed?  What are the habitat needs of these species? (Maps and Diagrams)

 

What existing patches of habitat exist within the watershed for key species (undeveloped, roadless areas, etc)?  Do existing corridors network any of these patches? (Maps)

 

6.  Hazards                                                                                  Students (2) _______________

_______________

 

Are there areas susceptible to landslide hazards? (Maps)

 

Are there areas susceptible to seismic activity (faults, etc.)? (Maps)

 

Are there areas susceptible to flooding?  Have flooding processes been altered by human activity?  (Maps and Diagrams)

 

How have fire processes historically influenced the landscape?  How has human activity altered these processes in the landscape? (Diagrams)

 

What areas of the landscape are historically prone to fire processes?  (Maps)

 

Are there any EPA Superfund Sites located in the watershed? (Maps) 

 

 

7.  Settlement History                                                                 Students (3) _______________
_______________

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What cultures have inhabited the watershed up until present day?  Where did they settle? How did they sustain themselves and how did they use the land? (Maps/Illustrations/Diagrams and Charts/Timelines)

 

What events/activities are worthy of remembrance? (Illustration and Maps)

 

Are there any sites/areas within the watershed that have been identified as historic or sacred from a cultural perspective?  Are there important sites that have been ignored? (Maps)

 

Are there any historic communities or districts in the watershed?  Where are these located?  What are their characteristics and/or uses? (Maps and Illustrations)

                                                                                                        

 

8.  Residential Settlement                                                          Students (3) _______________
_______________

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What are the demographic characteristics of today’s watershed residents (population, age, ethnicity, income, etc.)? How do these compare to County or State demographics?  How have these demographics changed over the past 10 years? (Tables/Graphs)

 

Are there distinct differences in demographic characteristics between communities within the watershed? (Maps)

 

Where are areas of residential land use located in the watershed?  How do they vary in terms of density and form (including street layout)?  Are there distinct time periods of development of neighborhoods which can be identified (maps and illustrations)

 

9.  Commercial & Office Land Use                                              Students (2) _______________
_______________

 

What types of commercial and/or office land uses are found in the watershed?  Where are these located (Maps/Images)

 

Are there any Edge Cities in the watershed? (Maps)

                           

How do the commercial and office areas vary in terms of physical characteristics (urban form, impervious surface, building size, street layout, etc)? (Maps, Sections, Diagrams and Illustrations)

 

How are commercial and office uses distributed in relationship to various demographic characteristics? (Maps)

 

10.  Industrial Land Use                                                              Students (2) _______________
_______________

 

What types of Industrial land uses are found in the watershed?  Where are these located (Maps/Images)

 

How do industrial areas vary in terms of physical characteristics (urban form, impervious surface, building size, street layout, etc)? (Maps, Sections, Diagrams and Illustrations)

 

How are industrial uses distributed in relationship to various demographic characteristics? (Maps)

 

 

11. Institutions and Recreation                                                   Students (2) _______________
_______________

 

Where are the primary and secondary schools within the watershed? (Maps)

 

Are there institutions of higher education located in the watershed? (Maps)

 

Are there museums or other cultural institutions located in the watershed? (Maps)

 

What are the public land ownership patterns in the watershed (public agencies, military, etc.)? (Maps)

 

What outdoor recreational resources are found within the watershed?  Are they characterized as national, regional, or community resources?  Who manages these resources? (Maps and Tables)

 

How are recreational uses distributed in relationship to various demographic characteristics? (Maps)

 

 

12.  Transportation                                                                      Students (2) _______________
_______________

                                                                                                                                               

What modes of transportation are available within the watershed (auto, air, train, etc.)? (Maps)

 

What are the primary commuting routes in the watershed? What modes of transportation are most people using?  How far are they traveling?  (Maps and diagrams)

 

What are the classification of the roadways within the watershed, based on design standards and traffic volumes (interstate, arterial, collector, local)? (Maps)

 

Where are transit centers located in the watershed (Maps)

 

What trail/bicycle networks are provided in the watershed.)? (Maps)

 

How are transportation resources distributed in relationship to various demographic characteristics and densities? (Maps)

 

13.  Energy Potential                                                                  Students (2) _______________
_______________

                                                                                                                                               

                        

Are there existing oil, gas, geothermal, or other “conventional” energy resources found in the watershed?  (Maps)

                                                           

What is the potential for solar energy production within the watershed?  What areas are most suitable?  (Maps)

 

What is the potential for wind energy production within the watershed?  What areas are most suitable?  (Maps)

 

What is the potential for hydrological energy production within the watershed?  What areas are most suitable?  (Maps)