## Design and Manual to Construct Rainout-Shelters for Climate Change Experiments in Agroecosystems

2018
##### Authors
Meyer, Svenja
Birkhofer, Herbert
Fliessbach, Andreas
Mäder, Paul
Scheu, Stefan
Birkhofer, Klaus
Journal article
Published
##### Published in
Frontiers in Environmental Science ; 6 (2018). - 14. - eISSN 2296-665X
##### Abstract
Climate change models predict reduced summer precipitations for most European countries, including more frequent and extreme summer droughts. Rainout-shelters which intercept part of the natural precipitation provide an effective tool to investigate effects of different precipitation levels on biodiversity and ecosystem functioning. In this study, we evaluate and describe in detail a fixed-location rainout-shelter (2.5 × 2.5 m) with partial interception of natural rainfall. We provide a complete parts list, a construction manual and detailed CAD drawings allowing to rebuild and use these shelters for rainfall manipulation studies. In addition, we describe a rainout-shelter control treatment giving the possibility to quantify and account for potential shelter artifacts. To test the rainout-shelters, we established the following three treatments each in eight winter wheat plots of the agricultural long-term farming system comparison trial DOK in Therwil (Switzerland): (1) A rainout-shelter with 65% interception of rainfall, (2) a rainout-shelter control without interception of rainfall, and (3) an ambient control. The rainout-shelter effectively excluded 64.9% of the ambient rainfall, which is very close to the a priori calculated exclusion of 65.1%. In comparison to the ambient control plots, gravimetric soil moisture decreased under the rainout-shelter by a maximum of 11.1 percentage points. Air temperature under the rainout-shelter differed little from the ambient control (−0.55°C in 1.2 m height and +0.19°C in 0.1 m height), whereas soil temperatures were slightly higher in periods of high ambient temperature (+1.02°C), but remained basically unaffected in periods of low ambient temperature (+0.14°C). A maximum edge effect of 0.75 m defined a sampling area of 1 × 1 m under the rainout-shelter. The rainout-shelters presented here, proved to sustain under heavy weather and they were well-suited to be used in agricultural fields where management operations require the removal of the rainout-shelters for management operations. Overall, the results confirmed the good performance of the presented rainout-shelters regarding rainout-shelter artifacts, predictable rain exclusion, and feasibility for experimental studies in agricultural fields.
##### Subject (DDC)
570 Biosciences, Biology
##### Keywords
rainout-shelter design, summer drought, climate change, precipitation, wheat, CAD drawings
##### Cite This
ISO 690KUNDEL, Dominika, Svenja MEYER, Herbert BIRKHOFER, Andreas FLIESSBACH, Paul MÄDER, Stefan SCHEU, Mark VAN KLEUNEN, Klaus BIRKHOFER, 2018. Design and Manual to Construct Rainout-Shelters for Climate Change Experiments in Agroecosystems. In: Frontiers in Environmental Science. 6, 14. eISSN 2296-665X. Available under: doi: 10.3389/fenvs.2018.00014
BibTex
@article{Kundel2018-03-22Desig-41902,
year={2018},
doi={10.3389/fenvs.2018.00014},
title={Design and Manual to Construct Rainout-Shelters for Climate Change Experiments in Agroecosystems},
volume={6},
journal={Frontiers in Environmental Science},
author={Kundel, Dominika and Meyer, Svenja and Birkhofer, Herbert and Fliessbach, Andreas and Mäder, Paul and Scheu, Stefan and van Kleunen, Mark and Birkhofer, Klaus},
note={Article Number: 14}
}

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