Effects of erosion and deposition on particle size distribution of deposited farmland soils on the chinese loess plateau

Zhao, Pei; Shao, Ming; Omran, Wail; Amer, Abdelmonem Mohamed

doi:10.1590/s0100-06832011000600028

Cited by 22 publications

(7 citation statements)

References 12 publications

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“…It is found that the grain size of 0.2-0.6 mm range is the most susceptible to soil erosion. The result of this study is in good agreement with the previous study [27].…”

Section: Effect Of Grain Size Distribution On the Erosion Of The Soilssupporting

confidence: 93%

Evaluation of erosion characteristics of soils using the pinhole test

et al. 2021

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This paper investigates the erosion characteristics of soils using the pinhole test. The tests were conducted with two undisturbed clay samples and five disturbed sandy soil samples. Based on the pinhole test results, a process to analyze the critical shear stress and erosion rate was proposed. The result indicates that the particle size distribution and coefficient of uniformity of soils are significant factors that affect the erosion characteristics of the soil. Samples with a grain size ranging from 0.2 to 0.6 mm is most susceptible to soil erosion. The erosion coefficients can be used to distinguish between the low erodible soils (ND3 and ND4) and high erodible ones (D1 and D2). Furthermore, it is interesting to note that the critical shear stress might be used as an identification parameter for erosion characteristics of the soil: τc > 3.5 Pa (ND3), 3.0 Pa < τc < 3.5 Pa (D2), and τc < 3.0 Pa (D1).

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“…It is found that the grain size of 0.2-0.6 mm range is the most susceptible to soil erosion. The result of this study is in good agreement with the previous study [27].…”

Section: Effect Of Grain Size Distribution On the Erosion Of The Soilssupporting

confidence: 93%

Evaluation of erosion characteristics of soils using the pinhole test

et al. 2021

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“…Soil silt and clay contents differed significantly between sites (F = 5.943, P = 0.020). This could be due to differences in soil formation but may also be caused by a preferential loss of fine fractions upon erosion (Zhao et al 2011). Sand content increases upon soil erosion after forest conversion and, hence, can be used as an indicator for evaluating soil degradation (Ayoubi et al 2011).…”

Section: Sand Silt and Clay Contentsmentioning

confidence: 99%

Carbon storage and soil property changes following afforestation in mountain ecosystems of the Western Rhodopes, Bulgaria

Zhiyanski¹,

Glushkova²,

Ferezliev³

et al. 2016

iForest

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Land-use changes and afforestation activities are widely recognized as possible measures for mitigating climate change through carbon sequestration. The present study was conducted to evaluate the effect of afforestation on (i) soil physical and chemical properties and soil carbon stocks in four mountain ecosystems and (ii) whole ecosystem carbon storage. The four experimental sites, situated in the Western Rhodope Mountains (Bulgaria) were characterized by typical forest-related land-use conversions. The four sites were a Douglas fir (Pseudotsuga menziesii [Mirb.] Franco) plantation (Rd1) established on former cropland, a mixed black pine (Pinus nigra Arn.) with Scots pine (Pinus sylvestris L.) plantation (Rd2) established on former cropland, a cropland (RdA1) and an abandoned land with uncontrolled extensive grazing (RdA2) historically used as cropland. Soil parameters, i.e., sand content, pH, organic C and N contents, C/N ratio and soil organic carbon (SOC) stocks, were significantly affected by land use and land-use history. Conversion from cropland into forestland significantly reduced soil bulk density and coarse fragments at 0-10 cm depth. Compared with adjacent cropland and abandoned land, soils in coniferous plantations were acidified in their upper layers. Sites Rd2 and RdA2 contained the least SOC owing to the previous long-term arable cultivation (>100 years). Analysis of the ecosystem C stock distribution revealed that most of C in forests was stored in the aboveground tree biomass. Our study confirmed that afforestation of cropland turned the soil into a C sink for the selected mountain region, but showed conflicting results when afforestation occurred on abandoned cropland.

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“…These included extensive areas with indicating sheet-flow erosion, as well as the sporadic occurrence of rills, which ind erosion. Surface processes are known to cause size-sorting of soil particles, with t and faster redistribution (sorting out) of the smaller-sized fractions [31]. Howev was not affected by treatment, with similar contents of sand (33.1 ± 1.1%), silt (49.…”

Section: Below-ground Processesmentioning

confidence: 91%

Single Session of Chiseling Tillage for Soil and Vegetation Restoration in Severely Degraded Shrublands

Stavi

Siegal²,

Drori³

et al. 2018

Water

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While tillage of agricultural lands has been used extensively, its utilization for restoring degraded semi-natural lands is rare. This study was conducted in the arid southern Israel in a shrubland which has faced severe degradation processes over time, including soil erosion and compaction, and negation of vegetation recovery. In 2014, research plots were established for assessing the impact of a single chiseling session on the ecosystem's restoration capacity. The study treatments included deep chiseling (35 cm), shallow chiseling (20 cm), and control (no-tillage). Data on spontaneously-established vegetation was collected one, two, and three years after the plots' establishment, and soil data was collected once-three years after the plots' establishment. Assessments of the vegetation parameters revealed a general similarity between the two chiseling treatments, which were generally better than those of the no-till plots. The soil properties revealed generally greater soil quality under the two chiseling treatments than that under the control plots, and a somewhat better soil quality for the deep chiseling than that for the shallow chiseling. Overall, results of this study show that in severely degraded lands, self-restoration processes are hindered, negating the effectiveness of passive restoration practices, and necessitating active intervention practices to stimulate restoration processes.

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Effects of erosion and deposition on particle size distribution of deposited farmland soils on the chinese loess plateau

Cited by 22 publications

References 12 publications

Evaluation of erosion characteristics of soils using the pinhole test

Evaluation of erosion characteristics of soils using the pinhole test

Carbon storage and soil property changes following afforestation in mountain ecosystems of the Western Rhodopes, Bulgaria

Single Session of Chiseling Tillage for Soil and Vegetation Restoration in Severely Degraded Shrublands

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