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Green-Up Protocol

Green-Up Protocol. Goals for the Training Session. Provide an inquiry context for the data collection and science content Provide accurate science content Review procedures for data collection Review data entry and analysis Discuss classroom implementation ideas

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Green-Up Protocol

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  1. Green-Up Protocol

  2. Goals for the Training Session • Provide an inquiry context for the data collection and science content • Provide accurate science content • Review procedures for data collection • Review data entry and analysis • Discuss classroom implementation ideas • Collect feedback from participants

  3. Inquiry Context • How long does green-up take for a given species? • How does green-up differ among different species within a forested study area? • How does green-up relate to precipitation? To soil moisture? • Does temperature influence the rate of green-up?

  4. Local Inquiry Example

  5. Why do GLOBE scientists research green-up? • To calculate growing season length and monitor interannual changes in growing season duration • To determine how environmental conditions such as air and soil temperature, precipitation, soil moisture, and day length affect plant growth • To monitor the nature and extent of climate change and its effects on plants and animals • To help interpret satellite observations of greenness

  6. Science Content: What is green-up? Green-up is the beginning of phenological changes that signal the start of a growing season for most plants. March 1987 May 1987

  7. Science Content: Important Definitions Dormancy is a state of suspended growth and metabolism. Swelling is seen when the bud is getting bigger. Budburst is the emergence of new leaves (photosynthetically active foliage) on plants, which signals the beginning of a new growing season cycle.

  8. Instruments: Green-Up • GPS Receiver • Local Tree Identification Guide • Compass • Meter stick or tape measure (for grass study site) • Ruler (in mm) • Camera • Flagging Tape & Marker

  9. The Measurements • Green-Up Study Site Definition • GPS Measurement • Tree and shrub species or grass genus • Study Site pictures • Green-Up Protocol • For tree or shrub: date, bud condition or leaf length on four buds of the same branch • For grass: date, blade length on first four shoots to emerge

  10. Collecting Data: Field/Lab Guides & Data Sheets Field/Lab Guides: • Tree and Shrub Green-Up and Green-Down Site Selection Field Guide or Grass Green-Up and Green-Down Site Selection Field Guide • GPS Protocol Field Guide • Tree and Shrub Green-Up Protocol Field Guideor Grass Green-Up Protocol Field Guide Data Sheets: • Green-Up and Green-Down Site Definition Sheet • GPS Investigation Data Sheet • Tree and Shrub Green-Up Data Sheet or Grass Green-Up Data Sheet

  11. Collecting Data: Green-Up and Green-Down Study Site • Site Selection • At least 2 weeks before budburst • Convenient location • Native trees/shrubs or grasses that are not watered or fertilized are preferred • Tree and Shrub or Grass Selection • Identify dominant tree and shrub species or grass genus • For Tree or Shrub: • Select one or more dominant, native, deciduous trees/shrubs • Select and flag a healthy, good-sized branch on the equator-facing side • For Grass: • Select a one-meter square area dominated by grass plants

  12. . : : . : : mm Collecting Data: Protocol • First Time • Locate and mark green grass shoot or bud at end of selected branch • Locate and mark three other closest buds or shoots • Photograph your site • Every Visit • For Tree or Shrub: • Examine each bud and determine if it is:Dormant, Swelling, Budburst, Length or Lost • Continue measuring until leaf stops increasing in length • For Grass: • Examine each shoot and determine if it is:No Shoot, Length or Lost • Continue measuring until leaf stops increasing in length

  13. Enter Data on the GLOBE Web SiteGreen-Up and Green-Down Study Site Definition Step 1: Select “Define a Green-Up/Green-Down Study Site” from the Phenology data entry menu Step 2: Enter the Study Site information Step 3: Click “Send Data” button Step 4: Confirm data entries on verification page

  14. Enter Data on the GLOBE Web SiteGreen-Up Protocol Step 1: Confirm that a Green-Up Study Site has been defined Step 2: Select “Green-Up” from the Phenology data entry menu Step 3: Select your Study Site, enter the date and growing season cycle Step 4: Enter data for the leaves/buds from each line of the data sheet, one at a time Step 5: Confirm data entries on verification page

  15. Looking at the Data

  16. Classroom Implementation • Inquiry • Curriculum/Standards Alignment • Assessment • Classroom Management

  17. Getting Started • The GLOBE Web site has information http://www.globe.gov • GLOBE Help Desk or your Country Coordinator can support you as you get started. • Get your students involved doing real science!

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