Warming changed seasonal water uptake patterns of summer maize

Wu, Yali; Ma, Ying; Niu, Yuan; Song, Xinshan; Yu, Hui; Lan, Wei; Kang, Xiaoqi

doi:10.1016/j.agwat.2021.107210

Cited by 3 publications

(4 citation statements)

References 28 publications

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“…In our study, compared to the other two cultivars, DH605 exhibited greater changes in SWC, particularly in the deeper soil layers (80-120 cm), which were most pronounced during the V12 and VT stages. This is because, in the early and middle stages of growth, the root system of summer maize was primarily concentrated in the 20-60 cm soil layer (Sun et al 2017), while during the later stages, the 40-80 cm soil layer became the area with the highest root density (Wu et al 2021). This may be attributed to DH605's higher water absorption during the middle and later phases of the reproductive period.…”

Section: Discussionmentioning

confidence: 99%

Characteristic of soil moisture utilisation with different water-sensitive cultivars of summer maize in the North China Plain

Zhang,

Gao,

Liu

et al. 2024

Plant Soil Environ.

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Soil moisture is the most crucial factor influencing crop growth. However, the shortage of soil water storage causes the reduction of yield, referred to as crop water stress (Omondi et al. 2021). Rainwater is the primary source of soil moisture, especially under rainfed agricultures (Jaramillo et al. 2020), but the frequency and intensity of extreme weather events, such as prolonged droughts and heavy rainfall, are expected to increase (Chen et al. 2020, Tang et al. 2021, which increase water loss through evaporation and runoff. Insufficient precipitation during critical growth stages is not adequate for crop water demands and biomass production (Huang et al. 2021); conversely, too much rainwater during the rainy season intensifies the problems of crop lodging and soil erosion (Routschek et al. 2014) and further jeopardised agricultural output (Malhi et al. 2021). Therefore, effective field crop management for cli-

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Section: Discussionmentioning

confidence: 99%

Characteristic of soil moisture utilisation with different water-sensitive cultivars of summer maize in the North China Plain

Zhang,

Gao,

Liu

et al. 2024

Plant Soil Environ.

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“…Under warming temperatures, the hydrological states and fluxes might be altered, thus influencing crop RWU [4]. The soil water content is expected to decrease, and drought intensity would be amplified through higher evapotranspiration.…”

Section: Of 16mentioning

confidence: 99%

Simulating Tree Root Water Uptake in the Frame of Sustainable Agriculture for Extreme Hyper-Arid Environments Using Modeling and Geophysical Techniques

Pradipta,

Kourgialas,

Mustafa

et al. 2024

Sustainability

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In order to ensure sustainability in the agricultural sector and to meet global food needs, a particularly important challenge for our time is to investigate the possibility of increasing agricultural production in areas with extreme hyper-arid environments. Warming air temperatures and sandy soils significantly influence tree root water uptake (RWU) dynamics, making accurate estimation of RWU depth distribution and magnitude crucial for effective resource management, particularly in the context of precision irrigation within agroecosystems. This study employed two non-invasive techniques, namely HYDRUS 1D and electrical resistivity tomography (ERT), to simulate RWU under controlled experimental conditions and under an extreme hyper-arid environment. The results revealed that the highest RWU rates occurred during the morning (08:00–11:00). RWU activity predominantly concentrated in the upper soil profile (0–30 cm), and the soil water content in this area was notably lower compared to the deeper soil layers. With increasing temperature, there was a tendency for the RWU zone to shift to lower depths within the soil profile. The findings of this study could have important implications for farmers, providing valuable insights to implement irrigation water management strategies.

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“…For the accuracy of the proportion of water sources analyzed, it is most common to stratify the soil layer into three or four layers. For example, Chen et al [4] stratified the soil with 0-10 cm, 10-20 cm, 20-40 cm and 40-100 cm, Wu et al [5] stratified the soil with 0-20 cm, 20-40 cm, 40-80 cm and 80-270 cm and Guo and Zhao [6] stratified the soil with 0-40 cm, 40-140 cm, 140-200 cm. Although many researchers [7][8][9][10][11][12] have determined the depths of soil stratifications according to the actual situations, they were all stratified by multiples of ten centimetres.…”

Section: Introductionmentioning

confidence: 99%

“…Chen et al [4] and Wang et al [14] compared the isotope composition of soil water as a whole, not stratified, with those of precipitation or irrigation water, etc. Wu et al [5] compared the isotope compositions of soil water stratified with those of precipitation or irrigation water, etc., but the stratifications of the soil were fixed so it did not change with time or seasons. Vargas et al [15] took into account seasonal changes and established an δ 2 H-δ 18 O relationship between the isotope compositions of plant stem water and soil water, but the authors have neither sampled soil water at different depths with different times and nor precipitations, soil water, plant water and groundwater were studied together.…”

Section: Introductionmentioning

confidence: 99%

High-Precision Calculation of the Proportions of Water with δ2H and δ18O, the Cumulative Effect of Evaporation in the Vertical Direction and Depleted δ2H and δ18O of the Shallow Soil Water Caused by Evaporation

Zeng

Zhang

Pan

et al. 2022

Water

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Exploring the water sources taken up by plants is necessary for ecological protection. The purpose of this study was to determine the exact proportions of different water sources absorbed by herbaceous plant species in the wetland of Poyang Lake in an inland humid region. This identified the water sources patterns in wetlands and provide Poyang Lake managers information about the lake water level needed to sustain vegetative life. We analysed the deuterium isotope composition (δ2H) and oxygen isotope composition (δ18O) values in the stem water of dominant herbaceous plant during its different growth stages to explore the proportions of water sources in different growth stages by using the Phillips equation, and the results supported the accuracy. The results indicate that the groundwater should not be lower than 0.13 m, otherwise the Carex cinerascens may not be able to absorb it. In previous studies, the lower slopes and intercepts of δ2H–δ18O were attributed to the secondary evaporation under the cloud, but we found that there is a cumulative evaporation effect in rainwater, soil water, and groundwater, which makes the slopes and the intercepts of δ2H–δ18O relationship lines become lower from top to bottom. In this study, the final effect of evaporation on the δ2H and δ18O values of shallow soil water is depleting the δ2H and δ18O values of shallow soil water, which is different from previous studies. The δ2H and δ18O values of groundwater varied little with changes of seasons and rainfalls. The δ2H–δ18O relationship lines established by various substances can also reflect the regulation of d-excess by large lakes through secondary sources.

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Warming changed seasonal water uptake patterns of summer maize

Cited by 3 publications

References 28 publications

Characteristic of soil moisture utilisation with different water-sensitive cultivars of summer maize in the North China Plain

Characteristic of soil moisture utilisation with different water-sensitive cultivars of summer maize in the North China Plain

Simulating Tree Root Water Uptake in the Frame of Sustainable Agriculture for Extreme Hyper-Arid Environments Using Modeling and Geophysical Techniques

High-Precision Calculation of the Proportions of Water with δ2H and δ18O, the Cumulative Effect of Evaporation in the Vertical Direction and Depleted δ2H and δ18O of the Shallow Soil Water Caused by Evaporation

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