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Type: Journal article
Title: Waterlogging in Australian agricultural landscapes: a review of plant responses and crop models
Author: Shaw, R.
Meyer, W.
McNeill, A.
Tyerman, S.
Citation: Crop and Pasture Science, 2013; 64(6):549-562
Publisher: CSIRO Publishing
Issue Date: 2013
ISSN: 1836-0947
Statement of
Ruth E. Shaw, Wayne S. Meyer, Ann McNeill, and Stephen D. Tyerman
Abstract: This review summarises reported observations of the effects of waterlogging on agricultural production in Australia and briefly discusses potential remediation strategies. Inconsistencies are demonstrated in the current indicators used for assessment of waterlogging potential across agricultural landscapes as well as in parameters measured in waterlogging studies. It is suggested that predictions of waterlogging potential for landscapes should be based on a minimum dataset that includes pedological, topographical, and climate data for the defined area, as well as observations of plant morphological appearance and visible surface water. The review also summarises the effects of low oxygen concentration in soil on rhizosphere processes, and discusses evidence for direct effects on plant physiology of reductions in soil oxygen caused by waterlogging. Finally, the review describes current crop growth, water use, and yield simulation models used in Australia (SWAGMAN, DRAINMOD, and APSIM) that incorporate waterlogging stress. It is suggested that there is scope for modifications to these models based on recent improved understanding of plant physiological responses to waterlogging and on further research. The review concludes that improvements in modelling waterlogging outcomes to assist growth and yield predictions should ultimately enhance management capacity for growers.
Keywords: raised bed; drainage; aquaporin; hydraulic conductivity; soil aeration; economics.
Rights: Journal compilation © CSIRO 2013
RMID: 0020131533
DOI: 10.1071/CP13080
Appears in Collections:Earth and Environmental Sciences publications

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