The soil–water flow system beneath a cotton field in arid north-west China, serviced by mulched drip irrigation using brackish water

Li, Xianwen; Jin, Menggui; Huang, Jinou; Yuan, Jingjing

doi:10.1007/s10040-014-1210-5

Cited by 43 publications

(34 citation statements)

References 42 publications

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“…Due to the soil structure of loam and the shallow groundwater table, there were two obvious fluctuations during the two irrigation periods in this study, as shown in Fig. 3, and the downward water flow from irrigation water below the divergent surface of zero flux arrived at the water table soon after the irrigation events (Li et al, 2015). Taking an irrigation period for example, the water table was lower at the beginning of irrigation, but began to respond and rise some hours after the end of the irrigation event.…”

Section: Water-table Fluctuation Methods (Wtf)mentioning

confidence: 83%

“…The land surface elevation is about 901 m above the mean sea level (Li et al, 2015). It is classified as a continental desert climate with an average annual precipitation of only 58 mm and maximum potential evaporation of 2788.2 mm.…”

Section: / 46mentioning

confidence: 99%

“…Wide-rows zone, narrow-rows zone and no-mulch zone were defined according to the location of the cotton plants ( Fig. 2a, Li et al, 2015). A drainage channel was set up for accepting the return flow of irrigation water to control the depth of groundwater table for avoiding secondary salinization.…”

Section: / 46mentioning

confidence: 99%

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Evaluation of evapotranspiration and deep percolation under mulched drip irrigation in an oasis of Tarim basin, China

Jin

Zhou

et al. 2016

Journal of Hydrology

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Mulched drip irrigation for cotton field is an effective measure for the utilization of saline water, and the regulation of soil water and salt. However, the reasonable methods for quantifying actual evapotranspiration (ET) and deep percolation of recharge to groundwater are still not very well understood, which restricts the accurate regulation of soil water and salt for cotton growth in oasis. In this paper, a set of experiments of mulched drip irrigation with brackish water were conducted in a typical arid region of Tarim basin in southern Xinjiang, China. The irrigation events were recorded, and ET and fluctuations of groundwater table were carefully measured for two consecutive irrigation periods of flowering and bolling stages. A group of upscaling conversion methods were used to quantify the ET, in which canopy structure was considered to estimate the transpiration from leaf scale to a unit of field scale. The groundwater table had a significant response to the irrigation events, thus

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Section: Water-table Fluctuation Methods (Wtf)mentioning

confidence: 83%

Section: / 46mentioning

confidence: 99%

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Evaluation of evapotranspiration and deep percolation under mulched drip irrigation in an oasis of Tarim basin, China

Jin

Zhou

et al. 2016

Journal of Hydrology

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“…The altitude is between 895 m and 903 m. The climate in the study area belongs to warm temperate continental desert climate. Soil texture is loamy sand soil with lower soil fertility [8]. …”

Section: Study Areamentioning

confidence: 99%

Winter Irrigation Effects in Cotton Fields in Arid Inland Irrigated Areas in the North of the Tarim Basin, China

Pengnian

Zia-Khan

Wei

et al. 2016

Water

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Abstract:Winter irrigation is one of the water and salt management practices widely adopted in arid irrigated areas in the Tarim Basin located in the Xinjiang Uygur Autonomous Region in the People's Republic of China. A winter irrigation study was carried out from November 2013 to March 2014 in Korla City. A cotton field was divided into 18 plots with a size of 3 mˆ3 m and five winter irrigation treatments (1200 m 3 /ha, 1800 m 3 /ha, 2400 m 3 /ha, 3000 m 3 /ha, and 3600 m 3 /ha) and one non-irrigation as a control were designed. The results showed that the higher winter irrigation volumes allowed the significant short-term difference after the irrigation in the fields with the higher soil moisture content. Therefore, the soil moisture in the next sowing season could be maintained at the level which was slightly lower than field capacity and four times that in the non-irrigation treatment. The desalination effect of winter irrigation increased with the increase of water irrigation volume, but its efficiency decreased with the increase of water irrigation volume. The desalination effect was characterized by short-term desalination, long-term salt accumulation, and the time-dependent gradually decreasing trend. During the winter irrigation period, air temperature was the most important external influencing factor of the soil temperature. During the period of the decrease in winter temperatures from December to January, soil temperature in the 5-cm depth showed no significant difference in all the treatments and the control. However, during the period of rising temperatures from January to March, soil temperature in the control increased significantly, faster than that in all treatments. Under the same irrigation volume, the temperature difference between the upper soil layer and the lower soil layer increased during the temperature drop period and decreased during the temperature rise period. In this paper, we proposed the proper winter irrigation volume of 1800-3000 m 3 /ha and suggested that the irrigation timing should be delayed to early December or performed in several stages in the fields with the drainage system. Under the current strict water management and fixed water supply quota situation, the methods are of great practical significance.

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“…N utrient element transport through the ecosystem is a critical component of global biogeochemical cycles. In arid or semiarid areas, brackish water is used for irrigation because of a lack of fresh water (Li et al, 2015). Salt‐tolerant plants such as cotton, which can withstand relatively high salt stress, are the preferred crops in such regions.…”

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confidence: 99%

Compartment Model for Estimating Element Content in a Water–Soil–Cotton System

et al. 2016

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Nutrient status provides crucial information about the stability and potential recycling capacity of a specifi c ecosystem. To comprehend the nutrient element transport in a typical cotton (Gossypium hirsutum L.) cultivation ecosystem, this study established dynamic compartment models to estimate the contents of four elements (Ca, Na, K, and B) in fi ve compartments during fi ve growth stages. Th e stage-variable parameters were determined using three methods. Pot experiments were conducted for model calibration and validation. More than 90% of Ca, Na, and B accumulated in the soil compartment, whereas K decreased throughout the growth season. Aft er the element proportions were introduced into parameter determination, the models yielded satisfactory estimations because 74 to 79% of the relative errors were <20%. For soil and leaf compartments, satisfactory estimations were obtained (modifi ed Nash-Sutcliff e coeffi cient of effi ciency C eff _m > 0.9), whereas the average C eff _m of root, stem, and fruit compartments were 0.82 ± 0.051, 0.78 ± 0.073, and 0.62 ± 0.051, respectively. Th e pot experiments indicated that cotton yields were much higher (P < 0.05) for the brackish water treatment than for the freshwater treatment, despite vegetative growth being inhibited. With an eff ective method for determining parameters, the compartment models successfully estimated the nutrient-element content in the typical cotton cultivation ecosystem, thereby providing a useful tool for proper management of irrigation, fertilization, and alleviation of salt damage.Abbreviations: CM, compartment model; DW, dry weight; M1 to M3, Methods 1 to 3; T1 to T7, Treatments 1 to 7; C eff _m , modifi ed Nash-Sutcliff e coeffi cient of effi ciency.

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The soil–water flow system beneath a cotton field in arid north-west China, serviced by mulched drip irrigation using brackish water

Cited by 43 publications

References 42 publications

Evaluation of evapotranspiration and deep percolation under mulched drip irrigation in an oasis of Tarim basin, China

Evaluation of evapotranspiration and deep percolation under mulched drip irrigation in an oasis of Tarim basin, China

Winter Irrigation Effects in Cotton Fields in Arid Inland Irrigated Areas in the North of the Tarim Basin, China

Compartment Model for Estimating Element Content in a Water–Soil–Cotton System

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