scholarly journals Contribution of <i>Chamaerops humilis</i> L. (Arecaceae) in Conservation <i>in Situ</i> of Soil Resources in the Tlemcen Region (Western Algeria)

2016 ◽  
Vol 06 (09) ◽  
pp. 562-567
Author(s):  
Naima Brahimi ◽  
Hasnaoui Okkacha ◽  
Cherif Ismahan
Keyword(s):  
Soil Resources ◽  
Western Algeria ◽  
Chamaerops Humilis

scholarly journals Ethnobotanical investigation of 'Chamaerops humilis' in the area of Beni Snous (Western of Algeria)

2019 ◽  
Vol 40 (2) ◽  
pp. 177-184
Author(s):  
Nadjat Medjati ◽  
Okkacha Hasnaoui ◽  
Brahim Babali ◽  
Noria Hachemi
Keyword(s):  
Local Population ◽  
Gastrointestinal Disorders ◽  
Local Populations ◽  
South West ◽  
Frequency Of Use ◽  
Western Algeria ◽  
Chamaerops Humilis ◽  
Intestinal Worms

The ethnobotanical potentials of Chamaerops humilis in the Béni Snous region (south-west of Tlemcen, western Algeria) has been studied to know the therapeutic utilities and the practices of the local populations, in order to valorize this resource. A series of ethnobotanical surveys were carried out using a questionnaire on the 3 municipalities of Beni Snous (Beni Bahdel, Azail, and Beni Snous). The frequency of use of Chamaerops humilis in the region of study is closely related to the profile of the investigated people. The results of this study reveal that Chamaerops humilis parts are used for therapeutic purposes by the local population: the heart of stipe as to treat dyspepsia (gastrointestinal attacks, 93.90%), fruits as an antiseptic (70.73%), roots for anemia (36.55%) and intestinal worms (30.10%), while the leaves are often used to treat diabetes (21.62%) and other gastrointestinal disorders (30.1%).

scholarly journals Ethno Botanic Study of Chamaerops humilis L. Var. argentea Andre (Arecaceae) in Western Algeria

2011 ◽  
Vol 6 (1) ◽  
pp. 1-6 ◽  
Author(s):  
O. Hasnaoui ◽  
M. Bouazza ◽  
O. Benali ◽  
M. Thinon
Keyword(s):  
Western Algeria ◽  
Chamaerops Humilis

scholarly journals Removal of Cu, Zn, Pb, and Cr from Yangtze Estuary Using thePhragmites australisArtificial Floating Wetlands

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Xiaofeng Huang ◽  
Feng Zhao ◽  
Gao Yu ◽  
Chao Song ◽  
Zhi Geng ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal Contamination ◽  
Yangtze Estuary ◽  
Contaminated Sites ◽  
Plant Tissues ◽  
The Yangtze Estuary ◽  
Soil Resources ◽  
Copper Zinc ◽  
Floating Wetlands

Contamination of heavy metals would threaten the water and soil resources; phytoremediation can be potentially used to remediate metal contaminated sites. We constructed thePhragmites australisartificial floating wetlands outside the Qingcaosha Reservoir in the Yangtze Estuary. Water characteristic variables were measured in situ by using YSI Professional Pro Meter. Four heavy metals (copper, zinc, lead, and chromium) in both water and plant tissues were determined. Four heavy metals in estuary water were as follows: 0.03 mg/Kg, 0.016 mg/Kg, 0.0015 mg/Kg, and 0.004 mg/Kg. These heavy metals were largely retained in the belowground tissues ofP. australis. The bioaccumulation (BAF) and translation factor (TF) value of four heavy metals were affected by the salinity, temperature, and dissolved oxygen. The highest BAF of each metal calculated was as follows: Cr (0.091 in winter) > Cu (0.054 in autumn) > Pb (0.016 in summer) > Zn (0.011 in summer). Highest root-rhizome TF values were recorded for four metals: 6.450 for Cu in autumn, 2.895 for Zn in summer, 7.031 for Pb in autumn, and 2.012 for Cr in autumn. This indicates that theP. australisAFW has potential to be used to protect the water of Qingcaosha Reservoir from heavy metal contamination.

Autecology, Soil Characteristics and Floristic Study of Phlomis crinita Cav. Habitat: A Rare Phytotaxon of the Mounts of Tessala (Western Algeria)

2018 ◽  
Vol 7 (6) ◽  
pp. 248-254
Author(s):  
Abdellatif Adjoudj ◽  
Ali Latreche
Keyword(s):  
Physical Environment ◽  
Western Mediterranean ◽  
Endemic Plant ◽  
Popula Tions ◽  
Ecological Habitat ◽  
Western Algeria ◽  
Rare Endemic ◽  
Biological Spectrum ◽  
Lime Stone

Phlomis crinita Cav. is a rare western Mediterranean species of the mounts of Tessala (Western Algeria). The study of its ecological habitat shows that it has a rich phytodiversity association. The taxonomic spectrum is dominated by Liliceae and Lamiaceae. The biological spectrum is dominated by Hemi-cryptophytes and Therophytes. The biogeographic spectrum is dominated by Mediterranean elements. The soils of Phlomis crinita Cav. are characterized by silty texture, neutral pH, rich in organic matter and poor of total lime-stone and active limestone. P. crinita Cav. population is characterized by reduced abundance, which is due to various threats, including prolonged drought, grazing, traditional phytotherapy use and fragmentation of its habi-tat, particularly by roads. The current study recounts the findings related to the ecological habitat of the species, its plant association, the characteristics of its physical environment and its population in situ. In addition, the causes of the local establishment of this taxon, its local distribution and its popula-tions are established. The data collected on the ecology of this rare endemic plant are useful for devising strategies for its conservation.

Rendez vous with Saturn's rings

1984 ◽  
Vol 75 ◽  
pp. 743-759 ◽  
Author(s):  
Kerry T. Nock
Keyword(s):  
Solar Energy ◽  
Electric Propulsion ◽  
Power Source ◽  
Propulsion System ◽  
Low Thrust ◽  
Ring Plane ◽  
The Earth ◽  
Total Impulse ◽  
Saturn's Rings

ABSTRACTA mission to rendezvous with the rings of Saturn is studied with regard to science rationale and instrumentation and engineering feasibility and design. Future detailedin situexploration of the rings of Saturn will require spacecraft systems with enormous propulsive capability. NASA is currently studying the critical technologies for just such a system, called Nuclear Electric Propulsion (NEP). Electric propulsion is the only technology which can effectively provide the required total impulse for this demanding mission. Furthermore, the power source must be nuclear because the solar energy reaching Saturn is only 1% of that at the Earth. An important aspect of this mission is the ability of the low thrust propulsion system to continuously boost the spacecraft above the ring plane as it spirals in toward Saturn, thus enabling scientific measurements of ring particles from only a few kilometers.

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