Assessment of soil erosion in karst regions of Havana, Cuba

Febles-González, José Manuel; Vega-Carreño, Marina Beatriz; Tolón‐Becerra, Alfredo; Bravo, Xavier Bolívar Lastra

doi:10.1002/ldr.1089

Cited by 62 publications

(24 citation statements)

References 29 publications

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“…Soil erosion is a severe environmental and social issue throughout the world (Bewket & Teferi, 2009;Zhang et al, 2009). The karst landforms are special because of their nonuniform subsurface structure and special underground hydrogeology, which lead to a peculiar and complex process of soil erosion (Bai et al, 2010;Kiernan, 2010;Febles-González et al, 2012). Under the interaction of natural factors (rainfall and geological geomorphology) and human activities, soil erosion can cause soil degradation and rocky desertification in this area.…”

Section: Introductionmentioning

confidence: 99%

“…Evidently, there is a great difficulty in directly collecting underground soil leakage, especially underground pore fissure soil loss because of the complex double-layer structure of surface and underground spaces. Relative research in karst mainly pay attention to the surface water and soil loss, including surface runoff and soil loss using large runoff fields (Peng & Wang, 2012), surface soil erosion using a spatially distributed model (Feng et al, 2014), remote sensing (Kheir et al, 2008), RUSLE and GIS (Xu et al, 2008;Li et al, 2016) and soil erosion assessment (Febles et al, 2009). Moreover, those studies only pay attention to the surface water and soil loss, and few focuses on underground leakage and loss of water and soil during research on soil erosion in karst regions.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Underground Pore Fissures on Soil Erosion and Sediment Yield on Karst Slopes

et al. 2017

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Underground pore fissure is one of common ways of soil leakage, and the soil loss in underground pore fissure would aggravate the development of rocky desertification in karst areas. A designed steel tank with varied underground pore fissure degrees was used to measure how underground pore fissure affected soil erosion and sediment yield on karst bare slope. We found that sediment yield rates and its distribution ratios obviously differed between the surface and underground. Surface sediment yield rate greatly responded to rainfall intensity conditions, while underground sediment yield rate rarely changed. Both bed rock bareness and underground pore fissure degree had an insignificant effect on both surface and underground sediment yield rate, but the former greatly influenced sediment distribution between the surface and underground. With increasing of bed rock bareness rate, both the average surface and underground sediment yield rates first increased and then decreased. The later posed an effect on underground sediment yield rate, which increased with increase of underground pore fissure degree. With increase of underground pore fissure degree, critical rainfall intensity for producing surface sediment would increase from 0.8–1.3 mm min−1 to 1.3–2.0 mm min−1. The results provide a mechanistic understanding of how underground pore fissure affects soil erosion and sediment production. Copyright © 2017 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Underground Pore Fissures on Soil Erosion and Sediment Yield on Karst Slopes

et al. 2017

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“…Relevant indicators of vast soil degradation and erosion include texture and porosity spoilage (Figueiredo et al, 1999;Jankauskas et al, 2008), water retention capacity decline (Ye et al, 2011) and soil leanness accompanied by chemical and biologic characteristics degradation (de Paz et al, 2006) have also been studied. Based on the analysis of the indicting parameters, several attempts at assessing and evaluating soil erosion have been made including those by Olson and Wischmeier (1963), Rose et al (1983), Smith et al (1999), Kheir et al (2008), Febles-González et al (2012), Tang et al (2015), and by Nearing et al (1990), Shelton and Wall (1998) and Feeser and O'Connell (2009) referring to some predictions.…”

Section: Introductionmentioning

confidence: 99%

Effect of drying–wetting cycles on aggregate breakdown for yellow–brown earths in karst areas

Tang

Zhou

2017

Geoenviron Disasters

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Background: Drying and rewetting process, frequently occurred during climatic changes, is an important process in soil aggregate slacking and dissolution. The severer interference of human activities on global climate makes the extreme climate scenarios like drought and rainstorm occur frequently. Therefore, there is necessity to further our understanding on the impact of the drying-wetting cycles and initial water content on the breakdown of soil aggregates. The typical yellow-brown earth composed of water-stable and water-unstable aggregates is selected. Variations of water-stable aggregate size distributions after drying-wetting cycles are measured by wet sieving, under variable initial water content and cycles respectively. Results: Drying-wetting cycles cause a significant aggregate slaking, especially within the first two cycles. After that, most aggregates show more slacking resistant. The variation curves of the proportion of water-stable aggregates with the size 1-5 mm shows a coexistence of slaking process and supplement. The critical initial water content (about 24%) and turning point (with the aggregate size of 0.3 mm) are proposed to describe the effects of initial water content on size distribution of water-stable aggregates. Overall, the increase of initial water content strengths the water stability. In addition, the mathematical model for the relative leakage ratio based on the drying-wetting cycle, initial water content and size distribution are established. Conclusions: The findings reported in this paper may be capable of supporting the intensive study for the breakdown mechanism and assessing the leakage potential under the influence of climate change. However, there exists a certain mismatch between the drying-wetting cycles in the tests and in practice, mainly in the frequency and intensity, which should be paid more attention.

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“…Karst landscapes represent an important facet of the Earth's geodiversity. Karst areas occupy approximately 12% of continental terrains and have various distinctive forms (Febles-Gonzalez et al, 2012). The karst geo-ecosystems are fragile environments, as a consequence of which they are undergoing widespread progressive degradation (Yuan, 2001).…”

Section: Introductionmentioning

confidence: 99%

“…This model is easy to understand and is compatible with geographic information system (GIS) graphical software, which has been successfully used in a wide range of environments (Ande et al, 2009;Li et al, 2010a;López-Vicente and Navas, 2010). Researchers have applied the RMMF model in the Mediterranean karst areas of Spain, Turkey and Cuba (Basayigit and Dinc, 2010;Febles-Gonzalez et al, 2012;López-Vicente et al, 2013). They indicated that the model retains a strong physical base, which is an important criterion for selection as an accurate description of erosion processes.…”

Section: Introductionmentioning

confidence: 99%

Modeling soil erosion using a spatially distributed model in a karst catchment of northwest Guangxi, China

Feng

Chen

Wang

et al. 2014

Earth Surf Processes Landf

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Reliable assessment of the spatial distribution of soil erosion is important for making land management decisions, but it has not been thoroughly evaluated in karst geo‐environments. The objective of this study was to modify a physically based, spatially distributed erosion model, the revised Morgan, Morgan and Finney (RMMF) model, to estimate the superficial (as opposed to subsurface creep) soil erosion rates and their spatial patterns in a 1022 ha karst catchment in northwest Guangxi, China. Model parameters were calculated using local data in a raster geographic information system (GIS) framework. The cumulative runoff on each grid cell, as an input to the RMMF model for erosion computations, was computed using a combined flow algorithm that allowed for flow into multiple cells with a transfer grid considering infiltration and runoff seepage to the subsurface. The predicted spatial distributions of soil erosion rates were analyzed relative to land uses and slope zones. Results showed that the simulated effective runoff and annual soil erosion rates of hillslopes agreed well with the field observations and previous quantified redistribution rates with caesium‐137 (137Cs). The estimated average effective runoff and annual erosion rate on hillslopes of the study catchment were 18 mm and 0.27 Mg ha−1 yr−1 during 2006–2007. Human disturbances played an important role in accelerating soil erosion rates with the average values ranged from 0.1 to 3.02 Mg ha−1 yr−1 for different land uses. The study indicated that the modified model was effective to predict superficial soil erosion rates in karst regions and the spatial distribution results could provide useful information for developing local soil and water conservation plans. Copyright © 2014 John Wiley & Sons, Ltd.

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Assessment of soil erosion in karst regions of Havana, Cuba

Cited by 62 publications

References 29 publications

Effects of Underground Pore Fissures on Soil Erosion and Sediment Yield on Karst Slopes

Effects of Underground Pore Fissures on Soil Erosion and Sediment Yield on Karst Slopes

Effect of drying–wetting cycles on aggregate breakdown for yellow–brown earths in karst areas

Modeling soil erosion using a spatially distributed model in a karst catchment of northwest Guangxi, China

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