Site Name: sevMRME11C  (show IR view)

Location: Plot 11 Control Treatment, Monsoon Rainfall Manipulation Experiment, Sevilleta National Wildlife Refuge, New Mexico
  • Lat: 34.3438
  • Lon: -106.7268
  • Elev(m): 1604
  • Group: PhenoCam
  • Camera Description: StarDot NetCam SC
  • Camera Orientation: N
  • Site Contacts:
    • Renee Brown <rfbrown AT unm DOT edu>
    • Scott Collins <scollins AT unm DOT edu>
  • UTC Offset: -7
  • Site Type: I
  • Site Meteorology: True
  • MAT_site: 13.2
  • MAP_site: 250.0
  • MAT_daymet: 13.45
  • MAP_daymet: 258.0
  • MAT_worldclim: 12.6
  • MAP_worldclim: 251.0
  • Flux Data: False
  • dominant_species: Bouteloua eriopoda
  • primary_veg_type: GR
  • secondary_veg_type: None
  • north_america_ecoregion: 10
  • wwf_biome: 13
  • koeppen_geiger: BSk
  • landcover_igbp: 10
  • site_notes:

    The Monsoon Rainfall Manipulation Experiment (MRME) consists of thirteen 8 m x 13 m experimental plots, all of which receive ambient precipitation throughout the year. Three plots act as controls (e.g., sevMRME11C), while the remaining ten plots receive one of two experimentally manipulated rainfall irrigation treatments over the course of a twelve-week summer monsoon season spanning July through mid-September each year. Five “small” treatment plots (e.g., sevMRME1S) receive a 5 mm irrigation pulse once per week (n=12) representing the current average condition, while five “large” treatment plots (e.g., sevMRME10L) receive a 20 mm irrigation pulse once per month (n=3) simulating a predicted future climate scenario of less frequent, but more extreme rainfall events. Thus, while rainfall variability (i.e., event size and frequency) differs between treatments, total added rainfall is the same (60 mm). Onsite water storage tanks provide a reservoir for irrigation water that is obtained from a reverse-osmosis system. Irrigation treatments are applied via overhead sprinkler systems shortly after dawn while temperatures and winds are relatively low, ensuring the intended amounts of water are not only received by the plots, but also less likely to be lost through evaporation.

  • site_acknowledgements:

    Support is provided by the Sevilleta Field Station and the University of New Mexico

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