Budburst Protocol

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Budburst Protocol
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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

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Inquiry Context

• When does budburst occur for the dominant tree
  species?
• How does budburst differ between different tree
  and shrub species within a forested study area?
• How does budburst vary year to year for the same
  species?
• Which environmental factors most affect the
  timing of budburst on a particular species?

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Local Inquiry Example
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Why do GLOBE scientists research budburst?

• To calculate growing season length and monitor
  interannual changes in growing season duration
• To determine how environmental conditions such as
  air and soil temperature, 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

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Science Content What is Budburst?
Dormancy is a state of suspended growth and
metabolism. Budburst is the emergence of new
leaves (photosynthetically active foliage) on
plants, which signals the beginning of a new
growing season cycle.
Dormant Bud
Budburst
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Instruments Budburst

• GPS Receiver
• Local Tree Identification Guide
• Flagging Tape Marker
• Binoculars (optional)

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The Measurements

• Budburst Study Site Definition
• GPS Measurement
• Tree/Shrub Species
• Budburst Protocol
• Date buds burst on 3 or more places of the same
  plant

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Collecting Data Field/Lab Guides Data Sheets

• Field/Lab Guides
• Budburst Site Definition Field Guide
• GPS Protocol or Offset GPS Protocol Field Guide
• Budburst Protocol Field Guide
• Data Sheets
• Budburst Site Definition Sheet
• GPS Investigation Data Sheet
• Budburst Protocol Data Sheet

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Collecting Data Budburst Study Site

• Site Selection
• At least 2 weeks before budburst
• Convenient location
• Native trees that are minimally watered or
  fertilized are preferred

• Tree Selection
• Identify dominant tree species
• Choose measurement strategy
• Dominant overstory species
• More than one overstory species
• Overstory and/or understory species
• Flag at least two trees from each species

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Collecting Data Budburst Protocol

• Observe selected trees at least two weeks prior
  to budburst
• Visit twice a week, initially until budburst
  appears anywhere on tree
• Visit daily until budburst is seen on three
  separate locations of each tree

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Enter Data on the GLOBE Web SiteBudburst Study
Site Definition
Step 1 Select Define a Budburst Study Site
from the Phenology data entry menu Step 2 Enter
the Study Site information Step 3 Click Send
Data Step 4 Confirm data entries on
verification page
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Enter Data on the GLOBE Web SiteBudburst Protocol
Step 1 Confirm that the budburst study site
definition is complete Step 2 Select Budburst
from the Phenology data entry menu Step 3 Enter
the year chose the site you defined Step 4 For
each tree, enter the date of budburst and the
date of last observation prior to budburst Step
5 Confirm data entries on verification page
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Looking at the Data
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Classroom Implementation

• Inquiry
• Curriculum/Standards Alignment
• Assessment
• Classroom Management

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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!