Effects of bedrock strata dip on soil infiltration capacity under different land use types in a karst trough valley of Southwest China

Gan, Fengling; Shi, Hong; Gou, Jan; Zhang, Linxing; Liu, Chunhong

doi:10.1016/j.catena.2023.107253

Cited by 8 publications

(6 citation statements)

References 35 publications

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“…In this paper, four infiltration models were selected for evaluation and analysis, among which the Horton model had the best model fitting effect ( R 2 > 0.935). The Horton model was applicable to describe the vertical one-dimensional infiltration in unsaturated soil 49 and the parameters i c and i 1 had physical significance 50 – 52 . And the Philip model with the lowest R 2 values had the lowest accuracy among the four different infiltration models in the paper.…”

Section: Discussionmentioning

confidence: 99%

“…And the Philip model with the lowest R 2 values had the lowest accuracy among the four different infiltration models in the paper. The Kostiakov model was a typical exponential model 49 and the simulated infiltration rate i tended to be infinite when the time tended to 0. It was not consistent with the actual situation 53 and was not suitable for characterizing the water movement in the early stage of soil water infiltration processes.…”

Section: Discussionmentioning

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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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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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“…Next, indicators of physical and chemical properties of the soil were determined, wherein organic matter was passed through a 0.149 mm sieve. Soil bulk density and field water-holding capacity were determined using the cutting-ring method [29]; pH was measured under a soil-water ratio of 1:5 using a pH meter; the water-soluble ions K + , Na + , Ca 2+ , Mg 2+ , SO 4 2− , and Cl − were determined using ion chromatography, and the water-soluble ions CO 3 2− and HCO 3 − were determined through dual-indicator-neutralization titration [30]; alkali-hydrolyzable nitrogen was determined using the alkaline diffusion method; available phosphorus was determined using the NaHCO 3 leaching-molybdenum antimony anticolorimetric method [31]; available potassium was determined using a NH 4 OAc leachingflame photometer [32]; organic matter was determined using the potassium dichromate volumetric method-outside heating method [33]. SAR refers to the relative amount of sodium ions and calcium and magnesium ions in irrigation water or soil solution [34] (Xu et al, 2022), which was calculated as follows:…”

Section: Indicator Testing Methodsmentioning

confidence: 99%

Combined Application of Desulfurization Gypsum and Biochar for Improving Saline-Alkali Soils: A Strategy to Improve Newly Reclaimed Cropland in Coastal Mudflats

Wang,

Liu,

Fan

et al. 2023

Land

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This study investigated the effects of combined (mixed) application of desulfurization gypsum and biochar on crop growth and soil properties in the saline-alkali soils of coastal mudflats through indoor pot experiments and eight experimental ameliorant treatments. Among them, CK was the control of newly reclaimed cropland in the study area with no added ameliorator, treatment A was desulfurization gypsum applied alone, and treatment F was biochar applied alone, while treatments B, C, D, and E were set as a combination of desulfurization gypsum and biochar treatments with different ratios, and treatment G was a local multi-year improved farmland soil with no added ameliorator. Additionally, an evaluation index system was established for evaluating the saline-alkali soil improvement in the newly reclaimed cropland. Finally, the improvement effect was evaluated by assessing soil physical and chemical indicators, as well as nutrient and crop growth indicators. Based on the results, the following conclusions were drawn: (1) Desulfurization gypsum and biochar significantly improved the soil physicochemical properties. Both single and mixed application of desulfurization gypsum significantly increased soil Ca2+, SO42−, and Mg2+ contents and significantly reduced soil pH, sodium adsorption ratio, and bulk density. Both single and mixed application of biochar significantly reduced soil bulk density and significantly increased water-soluble K+, field capacity (water-holding capacity), available phosphorus, available potassium, and organic matter contents. (2) Both single and mixed application of desulfurization gypsum and biochar demonstrated effectiveness in promoting crop growth, where the fresh weight, dry weight, plant height, and leaf area of peanut were higher than those of treatments CK and G. Treatment A (desulfurization gypsum 100 g/kg) was the most effective ameliorant treatment, in terms of improving the fresh and dry weight of peanut. Treatment C (desulfurization gypsum 75 g/kg, biochar 20 g/kg) had the most significant effect on peanut plant height and leaf area. (3) After 60 days of planting, the improvement effect of each treatment was ranked as C > A > E > B > D > F > G > CK. The treatments with a desulfurization gypsum–biochar combination and desulfurization gypsum alone had the best improvement effect, followed by the treatment with biochar alone.

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“…Tanah yang cenderung memadat berdampak juga terhadap meningkatnya bobot isi dan porositas yang menjadi lebih rendah yang selanjutnya dapat berpengaruh terhadap laju infiltrasi air ke dalam tanah (Nurmegawati, 2011). Selain itu, tipe penggunaan lahan yang sama bahkan beragam dengan kombinasi bentuk lahan dan sifat tanah yang berbeda memiliki respon yang berbeda terhadap kapasitas infiltrasi tanah (Gan et al, 2023 Kapasitas infiltrasi (f) dan infiltrasi kumulatif (F) menggunakan persamaan Horton (1941) sebagai berikut: f (t) = fc + (fo-fc) x e -kt F(t) = fc x t + (fo-fc) x (1-e -kt ) k Keterangan: f(t) = kapasitas infiltrasi pada suatu waktu (cm/jam) F(t) = Infiltrasi kumulatif (cm/jam) Fc = kapasitas infiltrasi konstan (cm/jam) Fo = kapasitas infiltrasi awal (cm/jam) e = bilangan dasar napierian (2,71828) k = konstanta suatu jenis tanah t = waktu (jam)…”

Section: Pendahuluanunclassified

Analisis Kapasitas Infiltrasi pada Beberapa Tipe Lahan Tegalan di Kelurahan Sasa Kecamatan Ternate Selatan

Hartati,

Teapon,

Wati

et al. 2023

Agrikultura

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Pengembangan lahan tegalan di Kelurahan Sasa Kecamatan Ternate Selatan melibatkan pengolahan tanah secara intensif sehingga memiliki struktur tanah yang renggang dengan porositas yang tinggi. Demikian juga dengan kondisi alami tanahnya yang bertekstur lempung dan berpasir dapat menyebabkan meningkatnya laju infiltrasi serta turut menentukan ketersediaan air yang ada. Penelitian ini bertujuan untuk mengetahui kapasitas infiltrasi, infiltrasi kumulatif dan karakteristik tanah yang memengaruhi kapasitas infiltrasi. Penelitian ini menggunakan metode percobaan lapangan dengan menggunakan double ring infiltrometer dalam mengukur laju infiltrasi. Analisis data meliputi laju infiltrasi aktual, kapasitas infiltrasi dan infiltrasi kumulatif. Hasil penelitian menunjukkan lahan tegalan dengan olah tanah minimum (Tg-Otm) memiliki kapasitas infiltrasi lebih rendah dibandingkan dengan lahan tegalan tanpa olah tanah (Tg-Tot) dan lahan tegalan dengan olah tanah intensif (Tg-Oti), demikian juga dengan infiltrasi kumulatifnya. Kondisi tersebut terjadi karena lahan tegalan dengan olah tanah minimum (Tg-Otm) memiliki tekstur tanah agak halus, bahan organik tanah rendah, berat volume tanah lebih tinggi, berat jenis partikel lebih rendah, porositas tanah sedang, kadar air tanah lebih tinggi dan permeabilitas tanah agak lambat.

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Effects of bedrock strata dip on soil infiltration capacity under different land use types in a karst trough valley of Southwest China

Cited by 8 publications

References 35 publications

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

Combined Application of Desulfurization Gypsum and Biochar for Improving Saline-Alkali Soils: A Strategy to Improve Newly Reclaimed Cropland in Coastal Mudflats

Analisis Kapasitas Infiltrasi pada Beberapa Tipe Lahan Tegalan di Kelurahan Sasa Kecamatan Ternate Selatan

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