Modeling Demand And Distribution For Environmental Upgrading Of The Huinong Irrigation System, Upper Yellow River Basin: A Multi-Criteria Approach For DSS In The Irrigation Domain

Gonçalves, José M.; Pereira, L. S.; Campos, A. A.; Fabião, Marta; Paredes, Paula; Fang, Shibiao; Mao, Zhu; Dong, Bin

doi:10.13031/2013.11230

Cited by 3 publications

(5 citation statements)

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“…Those data refer to the gross irrigation demand for rice at the upstream end of the branch canal systems (GIR), averaging 2,420 mm when the area served by the branch canal systems is smaller than 333 ha (5,000 mu), and 2,560 mm when serving a larger area. The resulting E branch are 0.55-0.58, thus indicating a quite low performance of the distribution system due to poor engineering and water management, including less appropriate delivery rules (Gonçalves et al 2002). Data observed in the East Branch Canal, serving an irrigated area of 90 ha in the Yongning area, produced similar E estimates of 0.60 in 1998 and 0.57 in 1999 .…”

Section: Irrigation Requirements Performances and Water Productivitymentioning

confidence: 94%

“…The potential water savings for the East Branch Canal would then be 440 mm, and a savings of 400 mm could be foreseen overall. When the canal system is adequately managed with the aim of satisfying the SPW irrigation method, the E BRANCH is expected to increase above 0.71 (Gonçalves et al 2002.…”

Section: Field Scalementioning

confidence: 99%

“…Changing the current canal operation rules, such as extending the irrigation duration and the time interval between irrigation events to two days, would reduce seepage losses, decrease runoff, and would induce farmers to irrigate less frequently while keeping a lower water depth in the paddies as desirable for SPW irrigation method. Simulations with the demand and delivery SEDAM model (Gonçalves et al 2002 show the possible impacts of foreseen changes in terms of farm and delivery water use (Fig. 5).…”

Section: Field Scalementioning

confidence: 99%

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Assessment and water saving issues for Ningxia paddies, upper Yellow River Basin

Mao

Dong

Pereira

2004

Paddy Water Environ

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In the Hetao Irrigation Districts of the Ningxia autonomous region, Upper Yellow River Basin, the "continuous deep flooding irrigation" method is used for the rice paddies. The field irrigation water use during the ricegrowing season is two to three times higher than in other regions of North China where water-saving practices have been introduced. This paper, based on the data measured in experimental rice fields and sub-branch canal systems, presents main results concerning crop evapotranspiration, percolation and irrigation requirements for deep and shallow water irrigation. Causes for water waste relate to both the lack of regulation in supply and distribution canals and to the poor management of paddy fields. The potential for water saving is discussed using water balance data. Improved irrigation techniques and water management strategies, including the shallow water irrigation method, are suggested considering the expected impacts and benefits. Replacing the current continuous deep flooding with the shallow-ponded water irrigation method may reduce the growing season irrigation water use from 1,405 to 820 mm in average, with a likely increase in yields of 450 kg/ha. Water productivity would then increase from 0.49 to 1.03 kg/m 3 . Adopting improved canal management and modernization of regulation and control structures may lead to decreasing the gross irrigation demand from the present 3,100 mm to about 1,280 mm, which would highly benefit the environmental conditions in the area.

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Section: Irrigation Requirements Performances and Water Productivitymentioning

confidence: 94%

Section: Field Scalementioning

confidence: 99%

Section: Field Scalementioning

confidence: 99%

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Assessment and water saving issues for Ningxia paddies, upper Yellow River Basin

Mao

Dong

Pereira

2004

Paddy Water Environ

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“…Dating back to 2000 years ago, the QTXID is among the oldest irrigation areas of China (Xie et al, 2002). The total area of QTXID is 10 000 km 2 , including an irrigated area of 330 000 ha (Gonçalves et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

“…The QTXID is relatively backward in economic development and agricultural infrastructure. Available research conducted on agricultural water management in the region has much been focused on improving water use efficiency through both field experiment and model simulation (Pereira et al, 2000(Pereira et al, , 2003Gonçalves et al, 2002;Xie et al, 2002;Wang L et al, 2003;Wang XG et al, 2004;Hollanders et al, 2005). These studies have indicated that irrigation can be substantially reduced without lowering crop yields.…”

Section: Introductionmentioning

confidence: 99%

Quantifying drainage components and salt and water balance in YinNan Irrigation District, China, based on a controlled drainage experiment

Jia

Luo

Fang

et al. 2006

Hydrological Processes

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Abstract:YinNan Irrigation District (YNID) is located in the upper reaches of the Yellow River in NingXia, China. Its irrigated area is about 80 000 ha, with one-third of it for rice production. The major part of its drainage system was constructed between the 1950s and 1970s to maintain the salt and water balances of the district. The system, however, has been reported as draining the agricultural lands excessively by several studies. In addition to field, lateral and main drainage ditches, agricultural fields of YNID are also under the influence of the Yellow River channel and some low-lying depressions, thus forming a dual drainage system. Owing to difficulties in irrigation inflow measurement, evaluation of the existing drainage system often appears to be elusive. Based on a dual drainage assumption and an on-site controlled drainage experiment, we present a detailed analysis on drainage components and the salt and water balance of YNID. Results show that, by implementing controlled drainage, shallow drainage from field ditches can be reduced by 60%. Deep drainage from main ditches, the Yellow River channel and low-lying depressions is relatively stable year around, and it neutralized the potential effect of controlled drainage on salinity increase. Drainage water salinity calculated from the dual subsurface drainage model was consistent with field observations, proving that the dual drainage assumption is valid for the study area. Based on this study, field water management practices of the irrigation district can be better targeted and fairly evaluated.

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Multi-scale modeling for water resources planning and management in rural basins

Victoria¹,

Filho²,

Pereira³

et al. 2005

Agricultural Water Management

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Modeling Demand And Distribution For Environmental Upgrading Of The Huinong Irrigation System, Upper Yellow River Basin: A Multi-Criteria Approach For DSS In The Irrigation Domain

Cited by 3 publications

References 0 publications

Assessment and water saving issues for Ningxia paddies, upper Yellow River Basin

Assessment and water saving issues for Ningxia paddies, upper Yellow River Basin

Quantifying drainage components and salt and water balance in YinNan Irrigation District, China, based on a controlled drainage experiment

Multi-scale modeling for water resources planning and management in rural basins

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