Data from: "Moisture rivals temperature in limiting photosynthesis by trees establishing beyond their cold-edge range limit under ambient and warmed conditions"
- ESS-DIVE
- U.S. Geological Survey
- University of California Berkeley
This archive contains data files that were used to draw conclusions in “Moisture rivals temperature in limiting photosynthesis by trees establishing beyond their cold-edge range limit under ambient and warmed conditions”, by Moyes et al., 2015. All field research was completed in common garden plots set up as part of the Alpine Treeline Warming Experiment (ATWE) on Niwot Ridge, Colorado, USA.There are two main data file formats in this archive: comma-separated values (.csv), and Microsoft Excel (.xls and .xlsx). .xlsx files can be read using Microsoft Excel and Google Sheets, and .csv files can be read using any simple text editor program, such as TextEdit (Mac) and Notepad (Windows). This .pdf data user’s guide can be read using Adobe Acrobat Reader, or any other compatible software. Seedling photographs and their corresponding leaf area-processed images are available in .jpg/.JPG image format, and can be opened using Preview (Mac) and Photos (Windows). To provide additional spatial context, two types of geospatial files are also published in this data package: ESRI shapefiles (.shp) and .kml files. Shapefiles are compatible with any GIS software able to read the file type (such as QGIS or ESRI’s ArcGIS suite), and .kml files can be opened with Google Earth or Google Maps. Figures 3 and 4 in the publication contain data from Moyes et al. 2013. This publication is cited in the References section in this archive, and data files can be accessed via the Alpine Treeline Warming Experiment project portal on ESS-DIVE. ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Climate change is altering plant species distributions globally, and warming is expected to promote uphill shifts in mountain trees. However, at many cold-edge range limits, such as alpine treelines in the western United States, tree establishment may be colimited by low temperature and low moisture, making recruitment patterns with warming difficult to predict.- We measured response functions linking carbon (C) assimilation and temperature- and moisture-related microclimatic factors for limber pine (Pinus flexilis) seedlings growing in a heating × watering experiment within and above the alpine treeline. We then extrapolated these response functions using observed microclimate conditions to estimate the net effects of warming and associated soil drying on C assimilation across an entire growing season.- Moisture and temperature limitations were each estimated to reduce potential growing season C gain from a theoretical upper limit by 15–30% (c. 50% combined). Warming above current treeline conditions provided relatively little benefit to modeled net assimilation, whereas assimilation was sensitive to either wetter or drier conditions.- Summer precipitation may be at least as important as temperature in constraining C gain by establishing subalpine trees at and above current alpine treelines as seasonally dry subalpine and alpine ecosystems continue to warm.
- Research Organization:
- Environmental System Science Data Infrastructure for a Virtual Ecosystem; Subalpine and Alpine Species Range Shifts with Climate Change: Temperature and Soil Moisture Manipulations to Test Species and Population Responses (Alpine Treeline Warming Experiment)
- Sponsoring Organization:
- U.S. DOE > Office of Science > Biological and Environmental Research (BER)
- DOE Contract Number:
- FG02-07ER64457; SC0007071
- OSTI ID:
- 1970199
- Country of Publication:
- United States
- Language:
- English
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EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS
EARTH SCIENCE > BIOSPHERE > VEGETATION
EARTH SCIENCE > CLIMATE INDICATORS > CLIMATE FEEDBACKS
Fluorescence
Fv/Fm
Geospatial data
LICOR output
Leaf area
Leaf scans
Leaf temperature
Meteorological data
Midday water potential
Net assimilation
PAR
Photosynthetically active radiation
Plant gas exchange
Rd
Relative humidity
Seedling leaf area
Seedling photos
Snowmelt day
Soil moisture
Soil temperature
Stomatal conductance
Transpiration flux rate
Vapor pressure deficit
Volumetric water content
Wind speed
abiotic stress
alpine treeline
microclimate
photoinhibition
source limitation
species distribution
water potential