Vegetation Ecology Lab / 植群生態研究室

Institute of Ecology and Evolutionary Biology, National Taiwan University

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cloud_wind:elev_transect [2020/08/11 08:55]
david
cloud_wind:elev_transect [2020/08/11 08:59] (current)
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 ======  Lalashan elevation transect ======  ======  Lalashan elevation transect ====== 
-The transect along elevation from the top of Mt. Taman toward the lowland is separated into elevation zones, each 250 wide.+FIXME 
 + 
 +The transect along elevation from the top of Mt. Taman toward the lowland is separated into six elevation zones, each 250 wide.
  
 {{:figures:lalashan_transect_schema.jpg?direct|}} {{:figures:lalashan_transect_schema.jpg?direct|}}
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 {{:figures:sampling_design_lalashan.jpg?direct|}} {{:figures:sampling_design_lalashan.jpg?direct|}}
 +
 +====== Environmental variables ======
 +
 +For each permanent 20×20 m plot, we collect:
 +  * standard topographical data
 +  * soil samples for chemical analysis
 +  * canopy structure (fish-eye photography)
 +  * long-term air temperature and humidity measurement
 +  * interior wind speed and direction measurement (for selected windward and leeward plots)
 +\\
 +===== Long-term measuring of air temperature and humidity =====
 +{{:figures:humidity-temperature-loggers.jpg?nolink|}}
 +
 +===== Wind speed and direction measurement =====
 +{{:figures:wind-direction-speed-loggers.jpg?nolink|}}
 +
 +====== Measured and calculated traits ======
 +
 +**Standard leaf traits (woody species & ferns)**
 +  * specific leaf area (SLA)
 +  * leaf area (LA)
 +  * leaf thickness
 +  * leaf dry matter content (LDMC)
 +  * leaf chlorophyll content
 +  * succulence
 +
 +**Additional leaf and wood traits (for woody species only)**
 +  * leaf nitrogen and phosphorus concentration and isotopic ratio
 +  * stem specific density (SSD, wood density)
 +  * leaf vein density
 +  * leaf wettability
 +  * leaf mechanical resistance (force to tear) <fc #ff0000>[planned, not measured yet]</fc>
 +