An underestimated role of precipitation frequency in regulating summer soil moisture (Articolo in rivista)

Type
Label
  • An underestimated role of precipitation frequency in regulating summer soil moisture (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/1748-9326/7/2/024011 (literal)
Alternative label
  • Chaoyang Wu; Jing M Chen; Jukka Pumpanen; Alessandro Cescatti; Barbara Marcolla; Peter D Blanken; Jonas Ardö; Yanhong Tang; Vincenzo Magliulo; Teodoro Georgiadis; Henrik Soegaard; David R Cook; Richard J Harding. (2012)
    An underestimated role of precipitation frequency in regulating summer soil moisture
    in Environmental research letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Chaoyang Wu; Jing M Chen; Jukka Pumpanen; Alessandro Cescatti; Barbara Marcolla; Peter D Blanken; Jonas Ardö; Yanhong Tang; Vincenzo Magliulo; Teodoro Georgiadis; Henrik Soegaard; David R Cook; Richard J Harding. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://iopscience.iop.org/1748-9326/7/2/024011 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 7 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 3 (literal)
Note
  • SCImago (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1 Department of Geography, University of Toronto, 100 St George Street, Toronto, ON, Canada 2 Department of Forest Sciences, University of Helsinki, PO Box 27, 00014 Helsinki, Finland 3 European Commission, Joint Research Centre, Institute for Environment and Sustainability, 21027 Ispra, Varese, Italy 4 Fondazione Edmund Mach, IASMA Research and Innovation Centre, Sustainable Agro-ecosystems and Bioresources Department, Via E. Mach 1, 38010 San Michele all'Adige, (TN), Italy 5 Department of Geography, University of Colorado at Boulder, 260 UCB, Boulder, CO, USA 6 Department of Physical Geography and Ecosystem Science, Lund University, Sölvegatan 12, SE-223 62 Lund, Sweden 7 National Institute for Environmental Studies, Onogawa, Tsukuba, Japan 8 CNR-ISAFOM, Via Patacca, 85, 80056 Ercolano, (Napoli), Italy 9 CNR-IBIMET, Via Gobetti 101, 40129 Bologna, Italy 10 Department of Geography and Geology, University of Copenhagen, Øster Voldgade 10, DK-1350 Copenhagen K, Denmark 11 Environmental Science Division, Argonne National Laboratory, Argonne, IL 60439, USA 12 Centre for Ecology and Hydrology, Crowmarsh Gifford, Wallingford OX10 8BB, UK (literal)
Titolo
  • An underestimated role of precipitation frequency in regulating summer soil moisture (literal)
Abstract
  • Soil moisture induced droughts are expected to become more frequent under future global climate change. Precipitation has been previously assumed to be mainly responsible for variability in summer soil moisture. However, little is known about the impacts of precipitation frequency on summer soil moisture, either interannually or spatially. To better understand the temporal and spatial drivers of summer drought, 415 site yr measurements observed at 75 flux sites world wide were used to analyze the temporal and spatial relationships between summer soil water content (SWC) and the precipitation frequencies at various temporal scales, i.e., from half-hourly, 3, 6, 12 and 24 h measurements. Summer precipitation was found to be an indicator of interannual SWC variability with r of 0.49 (p < 0.001) for the overall dataset. However, interannual variability in summer SWC was also significantly correlated with the five precipitation frequencies and the sub-daily precipitation frequencies seemed to explain the interannual SWC variability better than the total of precipitation. Spatially, all these precipitation frequencies were better indicators of summer SWC than precipitation totals, but these better performances were only observed in non-forest ecosystems. Our results demonstrate that precipitation frequency may play an important role in regulating both interannual and spatial variations of summer SWC, which has probably been overlooked or underestimated. However, the spatial interpretation should carefully consider other factors, such as the plant functional types and soil characteristics of diverse ecoregions. (literal)
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