Impact of water erosion on the properties of forest soils

Allam, Ayoub; Borsali, Amine Habib; Kefifa, Abdelkrim; Zouidi, Mohamed; Silva, Anne M. Farnet Da; Rébufa, Catherine

doi:10.15835/nsb13210921

Cited by 4 publications

(3 citation statements)

References 23 publications

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“…The altitudes are high (1,000 m on the average) [ 14 ] . The types of soils are poorly evolved, calcareous brown soil, rendzine, fersiallitic, calcomagnesium, and isohumic brown soils [ 15 ] (Table 1).…”

Section: Methodsmentioning

confidence: 99%

Floristic and Ecological Study of Erica arborea L. in the Western of Algeria

Djillali,

Dehbia,

Fawzia

et al. 2023

Advanced Research in Life Sciences

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This work focuses on clusters in Erica arborea L in western Algeria. To understand the floristic diversity of groups in Erica arborea. A floristic analysis was carried out based on floristic surveys on three regions in western Algeria according to an aridity gradient. This allowed us initially to count 100 species belonging to 75 genera and 40 families, which are predominated by asteraceae and lamiaceae with 08% of each family, Mediterranean elements dominate the biogeographical type with a percentage of 43% followed by the western Mediterranean elements. Therophytes predominate the biological spectrum of this flora with 39% followed by chamephytes with 28%. The abundance analysis shows the predominance of common elements with more than 83% of the flora, 12% of rare elements and 4% quite rare. Three morphological forms predominated by perennial woody. The Shannon (H) biodiversity index was between 2.99 and 3.37, while the Simpson index was between 0.91 and 0.95, and the Piélou equitability situated from 0.86 to 0.89. Whereas the disturbance index (DI) varied between 53 and 71% . These results show the anthropogenic pressure exerted on this ecosystem due to human activities and climate change, which requires the development of emergency restoration and conservation plans.

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Section: Methodsmentioning

confidence: 99%

Floristic and Ecological Study of Erica arborea L. in the Western of Algeria

Djillali,

Dehbia,

Fawzia

et al. 2023

Advanced Research in Life Sciences

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“…Mathieu (2020) indicated that overgrazing leads to plant destruction and other related issues, mainly soil grading as roots grow slowly in compacted soil, altering the formation and the stability of aggregates which reduce gas soil exchanges, permeability and capillary properties and results in the soil becoming sensitive to erosion (waterborne and wind). Deforestation and overgrazing are usually mentioned as the leading causes of soil erosion (Lahmar & Ruellan, 2007;Allam et al, 2021;Aouadj et al, 2023b) which may reduce or modify, in the long term, the returning of soil microbial properties. According to Six et al (2004), aggregation dynamics, organic matter composition and stabilization along with soil biological activity are related.…”

Section: Analysis Of Main Factors Of Correlation Between Chemical And...mentioning

confidence: 99%

Dynamics of chemical and microbial properties of Algerian forest soils: Influence of natural and anthropogenic factors (Northwest of Tlemcen)

Dahmani,

Borsali,

Merzouk

et al. 2023

Forestry Studies

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In Djebel Fellaoucene, mattorals and their regressive and progressive dynamics are affected by several factors, namely climate, geography, human activities, overgrazing and fires. This research aims to investigate whether these factors have an impact on the structural dynamics of the area’s forest soils and show a correlation between the soils’ chemical and microbial properties and these factors. In this regard, we have analysed chemical properties: organic matter, pH, conductivity, calcium carbonate (CaCO3), moisture and carbon as well as microbial properties: basal respiration, microbial biomass and metabolic quotient (qCO2), all from 80 soil samples collected from degraded mattorals on different altitudes and exposures. Principal Component Analysis (PCA) which has been made revealed that soil dynamics and correlations between chemical and microbial properties depend on the aforementioned factors; an increase in moisture, organic matter, carbon and conductivity as well as a decrease in the mass and bacterial respiration in the North-exposed sites under anthropogenic pressure and overgrazing by sheep and goats. Whereas opposite results were found in the South-exposed sites degraded by fires and undergrazing by cattle. Anthropogenic pressure and overgrazing in sites which have recently been burned lead to a decrease in microbial properties despite an increase in organic matter and moisture content. Qualifying and quantifying the impact of these degradation factors on forest soils allows us to establish effective restoration, conservation strategies and defend rangelands in arid areas.

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“…In Romania, the area occupied by black locust has increased continuously [25,26]. Depending on the favorable ecological conditions, black locust could contribute in the same way as other forest species or by supplementing them, ensuring the multiple functions of the forest at local, zonal, regional, national or global levels [27][28][29][30][31][32][33][34]. The quality of the seeds is the first condition for the afforestation to be successful and for the resulting forests to fulfil their numerous functions; i.e., production, protection, ecological, cultural, educational, etc.…”

Section: Introductionmentioning

confidence: 99%

Seed Germination and Seedling Growth of Robinia pseudoacacia Depending on the Origin of Different Geographic Provenances

et al. 2022

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Black locust (Robinia pseudoacacia) is recognised as a forest species of interest due to its multiple uses. The management of forest genetic resources and their efficient conservation suffer from variations in traits and start with seed germination. The aim of the current study was to investigate the germination of seeds obtained from plus trees selected in eight Romanian provenances, as well as to investigate the influence of the origin upon plants’ growth and development. Two experiments were undertaken to test seed germination: one treatment involved water-soaked seeds and heat/cold treatment, while the other treatment was based on sulphuric acid, at different concentrations (50, 70, 90%). The results were correlated with the morphological analysis of the seeds. Satu-Mare had the lowest germination rate within both treatments. Sulphuric acid did not improve seed germination as much as the heat treatment. The highest germination rate occurred for the water and temperature treatment on seeds from Bihor provenance (68.2%). The most distant provenance was Bihor, in inverse correlation with Bistrița Năsăud and grouped separately within the hierarchical dendrogram of cluster analysis based on the analysed parameters of the provenances investigated. The results demonstrated that the genotypes and environmental heterogeneity of the seed origin within the provenances may finally result in different performances.

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Impact of water erosion on the properties of forest soils

Cited by 4 publications

References 23 publications

Floristic and Ecological Study of Erica arborea L. in the Western of Algeria

Floristic and Ecological Study of Erica arborea L. in the Western of Algeria

Dynamics of chemical and microbial properties of Algerian forest soils: Influence of natural and anthropogenic factors (Northwest of Tlemcen)

Seed Germination and Seedling Growth of Robinia pseudoacacia Depending on the Origin of Different Geographic Provenances

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