Comparative analysis and simulation of soil moisture infiltration characteristics in different communities in the forests of Tianshan Mountains, China

Sultan, 阿茹·苏里坦 Aru; Shunli, 常顺利 Chang; Yutao, 张毓涛 Zhang

doi:10.5846/stxb201810072160

Cited by 4 publications

(3 citation statements)

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“…The characteristics of soil infiltration were determined by the steel‐ring method (Aru et al, 2019). Given that the impact of the initial soil water content at the onset of infiltration processes cannot be neglected (Lopes et al, 2020), each soil sample was wetted using deionized water to the same moisture (70% of FC) to maintain consistency among treatments before measurement.…”

Section: Methodsmentioning

confidence: 99%

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Effects of organic amendments on soil hydraulic characteristics in the Mollisols of Northeast China

Tian

Wang

et al. 2023

Land Degrad Dev

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Soil degradation in the Mollisol region of Northeast China is ubiquitous partly due to poor soil hydraulic characteristics. Improving soil hydraulic characteristics thus delivers benefits to soil sustainability. In this study, the effects of organic amendments on soil hydraulic characteristics were explored at the laboratory scale. Soil samples were subjected to three low‐cost and eco‐friendly organic amendments, including corn straw juice (CSJ), fulvic acid (FA), and humic acid (HA). The soil infiltration capacity, soil water characteristic curve (SWCC) and soil water retention capacity were determined by using a steel‐ring method and a centrifuge method. The parameters of the SWCC were fitted by a van Genuchten (VG) model, and the specific water capacity [C(h)] was calculated. In addition, bulk density (BD), macroporosity, and soil organic matter (SOM) were measured, and the relationships between the variables and processes were evaluated. The results indicated that the soil infiltration capacity (i.e., initial infiltration rate, cumulative infiltration, and steady infiltration rate) was significantly increased in the CSJ and FA treatments (p < 0.05) but decreased in the HA treatment compared to the control (CK) treatment. All the selected organic amendments improved the soil water release and supply capacity, and the CSJ2 treatment showed the best effect. The incorporation of CSJ, FA, and HA significantly improved the soil water retention capacity by increasing the saturated soil water content, field capacity, and plant available water capacity (p < 0.05). Such changes were significantly associated with macroporosity and SOM (p < 0.05). In this sense, our results showed that the CSJ treatment with 4 L m−2 and 50% volumetric concentration could be an effective soil amendment to improve the soil hydraulic characteristics in Mollisols and deserves further research.

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Section: Methodsmentioning

confidence: 99%

“…The Kostiakov model is expressed as follows:

I (t) = {italicat}^{- b},

where a and b are fitting parameters and can be estimated by using the measured infiltration data. Parameter a indicates the average infiltration rate at the first unit period, and b reflects the decay degree of instantaneous I with time (Aru et al, 2019).…”

Section: Methodsmentioning

confidence: 99%

Effects of organic amendments on soil hydraulic characteristics in the Mollisols of Northeast China

Tian

Wang

et al. 2023

Land Degrad Dev

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“…Soil organic matter (SOM) was determined by the dichromate oxidation sulfate ferrous titration method (Aru et al, 2019). Soil bulk density (BD, g/cm 3 ) of each layer was measured by a cutting ring with a volume of 100 cm 3 .…”

Section: Samples Analysismentioning

confidence: 99%

Root architecture characteristics of five natural homogeneous grasslands in riparian buffers from lower reaches of Yellow River

Guo

Zhang

et al. 2022

Grassland Science

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Root system characteristics are of fundamental importance to soil improvement and underground resource acquisition in riparian buffer strips. Root architectural traits determine the in situ space-filling properties of a root system. The aims of this study were to examine the grassland root morphological characteristics in the vegetation zone from the lower reaches of Yellow River. Five natural homogeneous grasslands including Imperata cylindrica, Phragmites australis, Cynodon dactylon, Artemisia argyi and Juncellus serotinus were selected. Seven root architecture parameters including fractal dimension, total root length, total root surface area, total root volume, average diameter, root crossing number and root tip number were analyzed, and comprehensive scores were evaluated using principal component analysis. The results showed that average root diameter of the five herbaceous plants was ranged from 0.42 to 0.78 mm. The total root length, total root surface area, total root volume, root crossing number and root tip number of I. cylindrica and P. australis were significantly higher than those of C. dactylon, A. argyi and J. serotinus. The main factors influencing root architecture were average diameter, total root surface area and total root volume through principal component analysis. I. cylindrica had the highest comprehensive score, followed by P. australis, A. argyi, C. dactylon and J. serotinus. I. cylindrica and P. australis would be good competitors for both soil resource acquisition and soil quality improvement due to their root traits. These results could provide a scientific basis for evaluating the ecological function of riparian vegetation.fractal dimension, herb plant, principal component analysis, root architecture, Yellow River riparian | INTRODUCTIONRiparian buffers are a transition zone between terrestrial and aquatic ecosystems that filter water and capture nutrients from surface runoff, making them a desirable component of agricultural landscapes (Chen et al., 2021). As an important part of the riparian buffer zone, the survival and development of vegetation are related to the performance of their ecological functions. The aboveground growth and biomass yield of vegetation is heavily dependent on the root system, which not only provides a fixed support for the aboveground part of the plant but also provides the necessary water and nutrients for life activities and the synthesis of various organic compounds necessary

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Improvement of root morphological characteristics on water percolation rate in grassland soils of Yellow River riparian buffer strips

Xiao-hu

Zhang

et al. 2021

Can. J. Soil. Sci.

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Soil water percolation is an important process required to meet plant water needs, determine soil water storage, and affect soil water quality in riparian buffer strips. However, the effects of plant roots on soil percolation in riparian buffer strips are not totally understood, and contradictory results have been carried out on the effects of the root system on soil percolation rates. This study aimed to investigate soil percolation in natural grasslands and evaluate the relationships between root morphological characteristics and percolation rates. Path analysis was used to provide information on the relative contribution of root characteristics on soil percolation rates. Three mixed grasslands (Imperata cylindrica + Phragmites australis, Imperata cylindrica + Cynodon dactylon, Imperata cylindrica + Juncellus serotinus) were selected in the Yellow River wetland natural reserves of Zhengzhou. Soil percolation rates (initial, average and steady infiltration rates) were measured by using double-ring methods, and plant root morphological characteristics were analyzed. Soil percolation rates and plant root characteristics parameters of Imperata cylindrica + Phragmites australis and Imperata cylindrica + Cynodon dactylon were higher than those of Imperata cylindrica + Juncellus serotinus. Initial percolation rate of Imperata cylindrica + Phragmites australis and Imperata cylindrica + Cynodon dactylon at 0-10cm depth was 58.06% and 95.55% higher than that of Imperata cylindrica + Juncellus serotinus, respectively. Percolation rates had a significant positive correlation with root characteristic parameters, and the main factor controlling soil percolation rates was root volume density. Mixed natural grasslands with more root volume density improved soil infiltration and percolation rates.

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Comparative analysis and simulation of soil moisture infiltration characteristics in different communities in the forests of Tianshan Mountains, China

Cited by 4 publications

References 0 publications

Effects of organic amendments on soil hydraulic characteristics in the Mollisols of Northeast China

Effects of organic amendments on soil hydraulic characteristics in the Mollisols of Northeast China

Root architecture characteristics of five natural homogeneous grasslands in riparian buffers from lower reaches of Yellow River

Improvement of root morphological characteristics on water percolation rate in grassland soils of Yellow River riparian buffer strips

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