Space Analysis and the Detection of the Changes for the Follow-Up of the Components Sand-Vegetation in the Area of Mecheria, Algerie

Idriss, H. I. Haddouche; Mederbal, Khaladi; Saïdi, Slim

doi:10.1007/978-3-540-95991-5_4

Cited by 5 publications

(1 citation statement)

References 1 publication

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“…The intense degradation of this fragile environment is due to silting, wind erosion, overgrazing, land clearing, drought, and salinization. These factors lead to desertification, which requires a better understanding of how to combat this scourge and adapt appropriate management strategies (Haddouche et al, 2011;Nedjimi, Brahim, 2012). During the last decades, the steppe rangelands of the Algerian high plains have been marked by intense degradation affecting the vegetation cover and biodiversity and altering the soil quality (Borsali et al, 2018;Zouidi et al, 2018;Djebbouri et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Effect of Salinity and Drought on the Germination of Lygeum spartum L. in the Region of Saïda (Western Algerian Steppe)

Zouidi,

Hachem,

Terras

et al. 2023

Ekológia (Bratislava)

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Albardine (Lygeum spartum L.) is one of the major native grass species of the semi-arid and arid regions of the Mediterranean basin. In Algeria, it is much more widespread on the high plateaus of southern Oranais. This species occupies an important place in the steppe region because it has many ecological, economic, and fodder interests. The present work aims to study the tolerance of L. spartum seeds to water and salt stress, two abiotic factors that affect the physiology of the plant during the germinal stage. The methodology adopted consists of using increasing concentrations under a controlled temperature (15°C) for 21 days of germination. The germination responses of the seeds to different degrees of salt stress induced by NaCl (2, 4, 6, 8, 10 g/l) and water stress induced by polyethylene glycol (PEG;−2, -4, -6, -8, −10 bar), showed that the salt and water stresses retarded the germination rate of L. spartum L. seeds and also decreased their percentage during the time of the experiment. However, seeds soaked in distilled water (control) recorded a maximum germination rate of 80%. The results of this study show that L. spartum seeds are moderately salt and drought tolerant with a depressive effect on germination rate at a salt concentration of 10g/l and an osmotic pressure of −10 bar.

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Section: Introductionmentioning

confidence: 99%

Effect of Salinity and Drought on the Germination of Lygeum spartum L. in the Region of Saïda (Western Algerian Steppe)

Zouidi,

Hachem,

Terras

et al. 2023

Ekológia (Bratislava)

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The Contribution of Purified Wastewater in the Valorization of Degraded Steppe Rangelands Case Study of the Mécheria Region (Western Algeria)

Youcefi,

Khiri,

Sahnoun

et al. 2024

NRSD

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Steppe rangelands in the Naâma region have suffered continuous and accentuated degradation in recent years, reducing biological potential by causing a disturbance of the ecological and socio economic order. This critical situation makes it necessary to opt for a new approach to compensate for water scarcity by using unconventional water resources such as the reuse of treated wastewater. Through this work, we try to study the impact of purified domestic wastewater from the Mécheria wastewater treatment plant (West Algeria) on the valorization of degraded rangelands that are downstream of this plant. The results obtained show the qualitative and quantitative contribution of purified water in steppe areas which results in a high specific richness and a significant production of plant material that can be used as fodder for livestock feeding. To take advantage of this, the farmers can practice alternative grazing by dividing the spreading area into sub-plots which will be irrigated and dried alternately, the herds range in the dry plots only. The second method consists of harvesting standing forage vegetation, and use in livestock feed after drying.

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Some Anthropic Aspects in Meridional Region of Sebdou (Oran-Algeria)

Benabadji¹,

Bouchenak-Khelladi²,

Regagba³

et al. 2014

OJE

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Relying essentially on human data (social structure, demography, population repartitions, migratory movements, agro-pastural activities), the authors, from their studies, note that these regions are an extension of hamlets and other groups. Highlands gather a small population that seems to settle. Responsible human disturbance (clearings, cultures, urbanization, etc.) modified a large part of the actual state of vegetation structures. The results also show that most of the population is concentrated in the main towns. This concentration causes consumption of pre-forest land and rangelands. The average annual extension can sometimes reach 2.4 Ha. Hamlets, home grouping seem to impose a lifestyle approaching that of centers located in the North. At the bioclimatic level, the results show that the cold thermal variations promote contact between woody vegetation and steppe formations with thermal determinism (formation often in xerophytes thorny pads). Droughts often advocate regressive dynamics of these plant formations which are quite degraded. On the other hand, stressing continuity issues related to human actions, the authors present the floristic composition, detailing the botanical plant species including biological and morphological types. The therophyte type predominates in all areas explored and their percentage can reach 73% in the steppe and 49% in Beni-Snous.

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Space Analysis and the Detection of the Changes for the Follow-Up of the Components Sand-Vegetation in the Area of Mecheria, Algerie

Cited by 5 publications

References 1 publication

Effect of Salinity and Drought on the Germination of Lygeum spartum L. in the Region of Saïda (Western Algerian Steppe)

Effect of Salinity and Drought on the Germination of Lygeum spartum L. in the Region of Saïda (Western Algerian Steppe)

The Contribution of Purified Wastewater in the Valorization of Degraded Steppe Rangelands Case Study of the Mécheria Region (Western Algeria)

Some Anthropic Aspects in Meridional Region of Sebdou (Oran-Algeria)

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