1 / 22

Of the Mitchell Marsh, Salmon River Estuary

Plant Community Analysis. Of the Mitchell Marsh, Salmon River Estuary. Ed Buchner Dept. GeoSciences May 26, 2004. Introduction. What is a Plant Community? Why are they important? How have they been used at this site? What methods of analysis have been used? Importance of visualization

bayle
Télécharger la présentation

Of the Mitchell Marsh, Salmon River Estuary

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Plant Community Analysis Of the Mitchell Marsh, Salmon River Estuary Ed Buchner Dept. GeoSciences May 26, 2004

  2. Introduction • What is a Plant Community? • Why are they important? • How have they been used at this site? • What methods of analysis have been used? • Importance of visualization • Use of kriging

  3. Study Site • Location

  4. Study Site • Location • Early Uses • Diking • Restoration

  5. Data • Previously Collected • Species percent cover • Biomass • Soil salinity • X,Y location • Elevation • Data used in analysis • Species percent cover • X,Y location

  6. Methods – Plant Community Indicator • Not interested in individual species • Plant community indicator development • NPCI

  7. Methods – Plant Community Indicator • Not interested in individual species • Plant community indicator development • NPCI • Based on NDVI • Band1-Band2/Band1+Band2

  8. Methods – Plant Community Indicator • Not interested in individual species • Plant community indicator development • NPCI • Based on NDVI • Band1-Band2/Band1+Band2 • (CALY+SAVI)-(POPA+JUBA) • CALY = Carex lyngbei • SAVI = Salicornia virginica • POPA = Potentilla pacifica • JUBA = Juncus balticus

  9. Methods – Plant Community Indicator • Not interested in individual species • Plant community indicator development • NPCI • Based on NDVI • PCA • Captures variation with one variable • CALY • SAVI • POPA • JUBA

  10. Methods – Data distribution • Statistical assumptions • Importance of data normality • What is normal • Histogram • Normal QQ

  11. Methods – Data distribution • NPCI and PCA Component 1

  12. Methods – Data Transformation • ArcSIN transformation • Data Caveat • Will this work?

  13. Methods – Kriging • Ordinary Kriging • Prediction map • 1st order trend removal • Anisotropy • Comparison of Indicators • Ground truthing • A priori knowledge

  14. Results – Transformation • Data Transformation PCA Component 1 ArcSIN Transformation

  15. Results – Kriging • NPCI

  16. Results – Kriging • Component 1

  17. Results – Kriging • ArcSIN Transformation

  18. Discussion • Plant Community Indicator • Transformation • Kriging • Alternative Visual Approach

  19. Discussion • Plant Community Indicator • Transformation • Kriging • Alternative Visual Approach

  20. Discussion • Plant Community Indicator • Transformation • Kriging • Alternative Visual Approach

  21. Discussion • Plant Community Indicator • Transformation • Kriging • Alternative Visual Approach

More Related