Spatial modeling of infiltration and its relationship with surface coverage of rock fragments and porosity in soils of an andean micro-watershed in Tolima (Colombia)

Villamil, Julián Leal; Avila, Edgar A.; Darghan, Aquiles Enrique; Lobo, Deyanira

doi:10.1016/j.geodrs.2023.e00637

Cited by 5 publications

(4 citation statements)

References 29 publications

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“…Soil porosity is an important index to evaluate soil water conservation capacity [ 36 ] and soil infiltration capacity [ 37 ]. It is also a place for water storage and a channel for water migration [ 38 ]. Increasing soil porosity will inevitably lead to enhancing soil infiltration capacity and soil water storage capacity [ 39 ].…”

Section: Results and Analysismentioning

confidence: 99%

Soil quality enhancement by multi-treatment in the abandoned land of dry-hot river valley hydropower station construction area under karst desertification environment

Wu,

Sun,

Chen

et al. 2024

PLoS ONE

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The medium-intensity karst desertification environment is typically characterized by more rocks and less soil. The abandoned land in the construction areas of the dry-hot river valley hydropower station has more infertile soil, severe land degradation, and very low land productivity. Therefore, it is urgent to improve the soil quality to curb the increasingly degrading land and reuse the construction site. Few studies have focused on the effect of soil restoration and comprehensive evaluation of soil quality with multi-treatment in abandoned land in the dry-hot valley hydropower station construction area. Here, 9 soil restoration measures and 1 control group were installed at the Guangzhao Hydropower Station construction in Guizhou Province, China, for physical and chemical property analysis. In total, 180 physical and 90 chemical soil samples were collected on three occasions in May, August, and December 2022. Soil fertility and quality were evaluated under various measures using membership functions and principal component analysis (PCA). This study showed that almost all measures could enhance soil water storage capacity (The average total soil porosity of 9 soil treatments was 57.56%, while that of the control group was 56.37%). With the increase in soil porosity, soil evaporation became stronger, and soil water content decreased. Nevertheless, no decrease in soil water content was observed in the presence of vegetation cover (soil water content: 16.46% of hairy vetch, 13.99% of clover, 13.77% of the control). They also proved that manure, synthetic fertilizer, and straw could promote total and available nutrients (Soil total nutrient content, or the total content of TN、TP、TK,was presented as: synthetic fertilizer (11.039g kg-2)>fowl manure (10.953g kg-2)>maize straw (10.560g kg-2)>control (9.580g kg-2);Total available nutrient content in soil, or the total content of AN,AP,A,was shown as:fowl manure (1287.670 mg kg-1)>synthetic fertilizer (925.889 mg kg-1)>sheep manure (825.979 mg kg-1)>control (445.486 mg kg-1). They could also promote soil fertility, among which the first two reached the higher comprehensive soil quality. Fertilizer was conducive to improve soil quality and fertility, yet long-term application could cause land degradation like soil non-point source pollution, compaction, and land productivity decline. Ultimately, combining fertilizer with biochar or manure is recommended to improve soil fertility. Biochar and green manure could play an apparent role in soil improvement only when there is abundant soil water. The above views provide theoretical support for curbing soil degradation, improving soil fertility and quality, enhancing land productivity, and promoting the virtuous cycle of the soil ecosystem.

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Section: Results and Analysismentioning

confidence: 99%

Soil quality enhancement by multi-treatment in the abandoned land of dry-hot river valley hydropower station construction area under karst desertification environment

Wu,

Sun,

Chen

et al. 2024

PLoS ONE

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“…This was consistent with the results of Wu et al 27 , who studied the water infiltration process of stony soil in Inner Mongolia. The gravel in the soil favored the reduction of the contact area between soil fine particles, which would lead to an accumulation of fine particles around it 26 . Then the total soil porosity would reduce and the soil bulk density would increase, both of which were important influence factors in determining soil water infiltration.…”

Section: Discussionmentioning

confidence: 99%

“…4 . The reason for this phenomenon could be that in the early stages of infiltration, the gravel covered on the top soil layer could protect the underlying soil from the direct influence of the water, which could promote the creation of soil aggregates 26 . While with the infiltration process, the soil aggregates were disrupted by gravel and the soil pore structure was blocked.…”

Section: Discussionmentioning

confidence: 99%

“…For example, in south-central Poland, Ilek et al 25 revealed that the increasing or decreasing of soil water infiltration capacity depended on the gravel content and diameter. In the central cordillera of Colombia, Leal et al 26 showed that infiltration was associated with the changes in total surface porosity and gravel. In the Inner Mongolia, Wu et al 27 found that with the increase of the gravel content and diameter, the infiltration capacity of soil water would be reduced, the water retention capacity of stony soil would be enhanced, and the soil water infiltration process was accurately described by the Kostiakov model.…”

Section: Introductionmentioning

confidence: 99%

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Effects of gravel on the water infiltration process and hydraulic parameters of stony soil in the eastern foothills of Helan Mountain, China

Ma,

Wang,

Zhang

et al. 2024

Sci Rep

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The investigation into the impact of gravel on water infiltration process and hydraulic parameters in stony soil could offer a theoretical basis to enhance water availability in rocky mountain area. A one-dimensional vertical infiltration experiment was used in this study. Six groups of gravel content of 0% (CK), 10% (W1), 20% (W2), 30% (W3), 40% (W4) and 50% (W5) were established to explore the changes in the wetting front, cumulative infiltration volume and infiltration rate. Then the accuracy of four infiltration models in simulating soil water infiltration processes was evaluated. Finally, Hydrus-1D was used to perform numerical inversion of the soil water content after infiltration. The findings revealed that: (1) When the infiltration time reached 300 min, the wetting front of the W1, W2, W3, W4 and W5 treatments was 11.00%, 17.00%, 32.25%, 38.75% and 54.50% lower than CK, the cumulative infiltration volume was 29.80%, 38.97%, 45.62%, 54.74% and 73.17% lower than CK, and the stable infiltration rate was 50.98%, 52.94%, 66.67%, 68.63% and 86.27% lower than CK. (2) The soil–water infiltration processes were accurately described by the Horton model, the coefficient of determination (R2) > 0.935. (3) The simulation results of Hydrus-1D showed that with the increase of gravel content, the values of the retention water content (θr), saturated water content (θs), shape coefficient (n) and saturated hydraulic conductivity (Ks) were decreased, the values of the reciprocal of air-entry (α) were increased. The value of R2 was more than 0.894, the root mean square error (RMSE) and mean absolute error (MAE) were less than 2%, which demonstrated that the Hydrus-1D model exhibited superior capability in simulating the changes of water content in stony soil in rocky mountain area. The findings of this study demonstrated that gravel could decrease the water infiltration process and affect the water availability. It could provide data support for the water movement process of stony soil and rational utilization of limited water resources in mountainous area.

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Effects of gravel on the water absorption characteristics and hydraulic parameters of stony soil

Ma,

Wang,

et al. 2024

J. Arid Land

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Spatial modeling of infiltration and its relationship with surface coverage of rock fragments and porosity in soils of an andean micro-watershed in Tolima (Colombia)

Cited by 5 publications

References 29 publications

Soil quality enhancement by multi-treatment in the abandoned land of dry-hot river valley hydropower station construction area under karst desertification environment

Soil quality enhancement by multi-treatment in the abandoned land of dry-hot river valley hydropower station construction area under karst desertification environment

Effects of gravel on the water infiltration process and hydraulic parameters of stony soil in the eastern foothills of Helan Mountain, China

Effects of gravel on the water absorption characteristics and hydraulic parameters of stony soil

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