The role of pebbles in the water dynamics of a stony soil cultivated with young poplars

Tétégan, Marion; Korboulewsky, Nathalie; Bouthier, Alain; Samouëlian, Anatja; Cousin, Isabelle

doi:10.1007/s11104-015-2429-1

Cited by 25 publications

(29 citation statements)

References 33 publications

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“…The ratio of water content between the fine soil and the rock fragments decreased gradually to 1 or <1 when water content decreased. The water content of the stony soil was higher than that in the rock-free soil as the rock-fragment content increased (Tetegan et al, 2015b). The rock fragments therefore had a larger effect on transpiration when water content was high.…”

Section: Tablementioning

confidence: 90%

“…The ratio was higher in the treatments with high water contents than in the treatments with low water contents. The presence of the rock fragments decreased the water content of the stony soil relative to the rock-free soil under well-watered conditions (Tetegan et al, 2015b). The ratio of water content between the fine soil and the rock fragments decreased gradually to 1 or <1 when water content decreased.…”

Section: Tablementioning

confidence: 92%

“…Most studies have focused on one kind of plant. For example, Tetegan et al (2015b) chose young poplars to study the role of pebbles in water dynamics. Qin et al (2015) studied the effects of gravel on the properties of the soil and vegetation in an alpine grassland.…”

Section: Wuementioning

confidence: 99%

“…Water exchange would be more complex when plants are added to the system. Tetegan et al (2015b) included the dynamics of water exchange between fine and stony soil. They demonstrated that rock fragments in soil could act as water reservoirs for plants.…”

Section: Introductionmentioning

confidence: 99%

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Effect of rock fragments content on water consumption, biomass and water-use efficiency of plants under different water conditions

Shao

Liu

2016

Ecological Engineering

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a b s t r a c tThe proportion of rock fragments in soil affects water availability and therefore the characteristics of plants. The objective of this study was to evaluate the effect of rock-fragment content on plant water consumption, biomass, growth and water-use efficiency (WUE) under different water conditions. Four gravimetric treatments of rock-fragment contents (0, 10, 30 and 50%) and four treatments of water content were tested in sandy loamy soils. The water contents of the rock-free soil were 15-19% (80-100% of field capacity), 11-15% (60-80% of field capacity), 9-11% (47-60% of field capacity) and 6-9% (32-47% of field capacity). Transpiration, plant height, basal stem diameter and biomass of korshinsk peashrubs in the treatments were measured and compared. Plants grown in the soil with rock fragments transpired less, especially under well-watered conditions. The mean daily transpiration of plants in the soils with 30 and 50% rock-fragment contents was 18% (P = 0.021) and 34% (P = 0.001) lower, respectively, in 2014, and 25% (P = 0.008) and 31% (P = 0.002) lower, respectively, in 2015 relative to the soil without rock fragments and was not lower in the soil with 10% rock fragments. Plant height, basal stem diameter and biomass did not differ significantly between rock-fragment contents of 0 and 30% but were lower at 50%. WUE, the ratio between total transpiration and biomass, was highest at 30% and then decreased at 50%. Increasing plant water stress could thus improve WUE. The rock fragments in the soil had significant effects on plant water consumption, biomass, growth and WUE. Optimizing the rock-fragment content is necessary when the relationships between plants and water in stony ecosystems are evaluated.

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Section: Tablementioning

confidence: 90%

Section: Tablementioning

confidence: 92%

Section: Wuementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of rock fragments content on water consumption, biomass and water-use efficiency of plants under different water conditions

Shao

Liu

2016

Ecological Engineering

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“…Generally, large particles can be classified into two groups: the first is relatively soft chalk and sedimentary fragments called rock fragments, which differ from soil particles such as pebbles and flint stones; the second is caliche nodules, which are a product of soil genesis processes. Owing to the differences in size and physical and chemical properties, large particles can greatly affect some soil physical properties, such as bulk density and porosity, and affect soil–water processes such as evaporation, infiltration, runoff and sediment, and soil water movement . However, large particles are often removed from soil particles in traditional soil physical measurements and are often ignored in soil–water process studies.…”

Section: Introductionmentioning

confidence: 99%

Effect of Caliche Nodules on Soil Water Storage in the Northern Loess Plateau of China

Gong

Zhu

Wang

et al. 2019

CLEAN Soil Air Water

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Knowledge of water absorbed by caliche nodules is important for accurate soil water estimation. Simulated soil column experiments are used to investigate the effects of caliche nodules on soil profile water distribution and soil water estimation under given water supply conditions. The results indicate that for the treatments with five caliche nodules contents (CNC = 0, 10, 20, 30, and 40%), except for the top 0–0.1 m soil layer, the soil water content (SWC) of other layers is significantly different between the treatments (P < 0.05). The SWC is positively correlated to CNC. There are significant differences (P < 0.05) in caliche nodule water content (CWC) in the top three soil layers for all treatments. For soils with less than 10% caliche nodules, the soil water storage (SWS) in deeper soil layer (0.3–0.4 m) is significantly higher than that in surface soil layers (P < 0.05). Caliche nodule water storage (CWS) and available caliche nodule water storage (ACWS) both increase with increasing CNC. Water storage in the caliche nodules increases with the increase in CNC. There are significant differences in ACWS among soil layers in all soils (P < 0.05). The total ACWS significantly increases with the increase in CNC (P < 0.01). If water is absorbed by caliche nodules, then the total water storage of soils with CNCs of 10, 20, 30, and 40% would be underestimated by 3, 8, 10, and 17%, respectively. This study contributes to accurate soil water estimation in soils with caliche nodules and provide a scientific basis for rational utilization of soil and water resources.

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Bacterial communities are associated with the tuber size of Tetrastigma hemsleyanum in stony soils

et al. 2021

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The role of pebbles in the water dynamics of a stony soil cultivated with young poplars

Cited by 25 publications

References 33 publications

Effect of rock fragments content on water consumption, biomass and water-use efficiency of plants under different water conditions

Effect of rock fragments content on water consumption, biomass and water-use efficiency of plants under different water conditions

Effect of Caliche Nodules on Soil Water Storage in the Northern Loess Plateau of China

Bacterial communities are associated with the tuber size of Tetrastigma hemsleyanum in stony soils

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