DOI: 10.5194/hess-19-4877-2015
Scopus记录号: 2-s2.0-84959138617
论文题名: Green and blue water footprint reduction in irrigated agriculture: Effect of irrigation techniques, irrigation strategies and mulching
作者: Chukalla A ; D ; , Krol M ; S ; , Hoekstra A ; Y
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2015
卷: 19, 期: 12 起始页码: 4877
结束页码: 4891
语种: 英语
Scopus关键词: Crops
; Cultivation
; Irrigation
; Soil moisture
; Accounting standards
; Deficit irrigation
; Green and blue waters
; Irrigated agriculture
; Irrigation efficiency
; Management practices
; Soil water balance
; Sprinkler irrigation
; Sprinkler systems (irrigation)
; arid environment
; crop production
; drip irrigation
; ecological footprint
; evapotranspiration
; furrow irrigation
; humid environment
; irrigation
; maize
; management practice
; mulching
; root vegetable
; sandy loam
; silty clay loam
; soil type
; soil water
; Israel
; Italy
; Spain
; Lycopersicon esculentum
; Solanum tuberosum
; Zea mays
英文摘要: Consumptive water footprint (WF) reduction in irrigated crop production is essential given the increasing competition for freshwater. This study explores the effect of three management practices on the soil water balance and plant growth, specifically on evapotranspiration (ET) and yield (Y ) and thus the consumptive WF of crops (ET / Y ). The management practices are four irrigation techniques (furrow, sprinkler, drip and subsurface drip (SSD)), four irrigation strategies (full (FI), deficit (DI), supplementary (SI) and no irrigation), and three mulching practices (no mulching, organic (OML) and synthetic (SML) mulching). Various cases were considered: arid, semi-arid, sub-humid and humid environments in Israel, Spain, Italy and the UK, respectively; wet, normal and dry years; three soil types (sand, sandy loam and silty clay loam); and three crops (maize, potato and tomato). The AquaCrop model and the global WF accounting standard were used to relate the management practices to effects on ET, Y and WF. For each management practice, the associated green, blue and total consumptive WF were compared to the reference case (furrow irrigation, full irrigation, no mulching). The average reduction in the consumptive WF is 8-10% if we change from the reference to drip or SSD, 13% when changing to OML, 17-18% when moving to drip or SSD in combination with OML, and 28% for drip or SSD in combination with SML. All before-mentioned reductions increase by one or a few per cent when moving from full to deficit irrigation. Reduction in overall consumptive WF always goes together with an increasing ratio of green to blue WF. The WF of growing a crop for a particular environment is smallest under DI, followed by FI, SI and rain-fed. Growing crops with sprinkler irrigation has the largest consumptive WF, followed by furrow, drip and SSD. Furrow irrigation has a smaller consumptive WF compared with sprinkler, even though the classical measure of "irrigation efficiency" for furrow is lower. © Author(s) 2015. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78365
Appears in Collections: 气候变化事实与影响
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作者单位: Twente Water Centre, University of Twente, Enschede, Netherlands
Recommended Citation:
Chukalla A,D,, Krol M,et al. Green and blue water footprint reduction in irrigated agriculture: Effect of irrigation techniques, irrigation strategies and mulching[J]. Hydrology and Earth System Sciences,2015-01-01,19(12)