Arid
DOI10.1016/j.fcr.2011.10.017
Soil water balance with cover crops and conservation agriculture in a Mediterranean climate
Ward, P. R.1,2; Flower, K. C.2,3,4; Cordingley, N.4; Weeks, C.5; Micin, S. F.1
通讯作者Ward, P. R.
来源期刊FIELD CROPS RESEARCH
ISSN0378-4290
EISSN1872-6852
出版年2012
卷号132页码:33-39
英文摘要

Modern conservation agriculture practices aim to maintain year-round ground cover in order to maximise soil protection from extremes of temperature and minimise erosion risk. However, in Mediterranean-style environments with hot dry summer periods, maintaining ground cover can be difficult, as these periods are generally too arid for plant growth. In this research, we investigated the use of cover crops, grown solely to increase ground cover and not harvested for grain or biomass, in a Mediterranean climate. Specifically, we examined the impact of cover crops and residue retention on evapotranspiration, both over the summer fallow period and during the winter and spring crop growth period, and on deep drainage from subsequent crops, on two contrasting soil types in south-western Australia. The impact of cover crops on weed populations and nitrogen dynamics is described in a companion paper. In contrast to previously published research, cover crops and residue retention were found to have limited impact on total evaporation during the summer and autumn period, although there were occasional short-term impacts on the rate of evaporation shortly after rainfall. There was also limited evidence of changes in evaporation during early crop growth. Drainage from crops grown after cover crops was not consistently different to drainage from crops grown after conventional crops. The inclusion of cover crops in farming systems in regions with a Mediterranean climate is unlikely to have major impacts on the water balance, but may still increase overall sustainability of the farming system. (C) 2011 Elsevier B.V. All rights reserved.


英文关键词Conservation farming Crop water use No-till Reduced tillage Stubble retention
类型Article
语种英语
国家Australia
收录类别SCI-E
WOS记录号WOS:000304512200004
WOS关键词SOUTH-WESTERN AUSTRALIA ; ROW CROP ; MANAGEMENT ; EVAPORATION ; TILLAGE ; STUBBLE ; EVAPOTRANSPIRATION ; NITROGEN ; PASTURE ; SYSTEMS
WOS类目Agronomy
WOS研究方向Agriculture
来源机构Commonwealth Scientific and Industrial Research Organisation ; University of Western Australia
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/172352
作者单位1.CSIRO Plant Ind, CSIRO Natl Sustainable Agr Flagship, Wembley, WA 6913, Australia;
2.Univ Western Australia, Sch Plant Biol, Crawley, WA 6009, Australia;
3.Univ Western Australia, UWA Inst Agr, Crawley, WA 6009, Australia;
4.Western Australian No Till Farmers Assoc, Northam, WA 6401, Australia;
5.Planfarm Pty Ltd, Geraldton, WA 6530, Australia
推荐引用方式
GB/T 7714
Ward, P. R.,Flower, K. C.,Cordingley, N.,et al. Soil water balance with cover crops and conservation agriculture in a Mediterranean climate[J]. Commonwealth Scientific and Industrial Research Organisation, University of Western Australia,2012,132:33-39.
APA Ward, P. R.,Flower, K. C.,Cordingley, N.,Weeks, C.,&Micin, S. F..(2012).Soil water balance with cover crops and conservation agriculture in a Mediterranean climate.FIELD CROPS RESEARCH,132,33-39.
MLA Ward, P. R.,et al."Soil water balance with cover crops and conservation agriculture in a Mediterranean climate".FIELD CROPS RESEARCH 132(2012):33-39.
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