Do you want to publish a course? Click here

The natural environment of Panicumturgidum Forssk at the eastern province of Saudi Arabia

البيئة الطبيعية لعشيرة الثمام (Panicum turgidum Forssk) في المنطقة الشرقية بالمملكة العربية السعودية

1712   1   47   0 ( 0 )
 Publication date 2003
and research's language is العربية
 Created by Shamra Editor




Ask ChatGPT about the research

The present study aimed to evaluate the ecological and phytosociological status of panicum turgidum under the environmental conditions of the eastern province of Kingdom of Saudi Arabia. 48 stands (each of 25 m2, i.e. 1x25 m) were randomly selected from three locations (Riyadh, Ogair and Damam) which represent the optimum habitat of P. turgidum. The obtained results showed that the dominated plant species associated with P. turgidum were Cyperus conglomertus, Eragrostis barrelieri, Haloxylon persicum, Haloxylon salicornicum, Heliotropium bocciferum, Launaea mucronata, Leptadenia pyrotechnica, Monsonia nevia and Plantago ovata. P. turgidum, and is recommended as an important grazing vegetation in deep sand soil. Soil salinity (ECe), soil PH, CaCO3, organic matter, soil texture (Sand %) and soil moisture (FC) were the most limiting soil properties affecting P. turgidum distribution naturally at the studied area.


Artificial intelligence review:
Research summary
تهدف هذه الدراسة إلى تقييم الوضع البيئي والنباتي لعشيرة التمام (Panicum turgidum) في المنطقة الشرقية من المملكة العربية السعودية. تم اختيار 48 موقعًا عشوائيًا من ثلاث مناطق (الرياض، العقير، الدمام) والتي تمثل البيئة المثلى لنمو هذا النبات. أظهرت النتائج أن الأنواع النباتية المصاحبة لعشيرة التمام تشمل Cyperus conglomertus، Eragrostis barrelieri، Haloxylon persicum، Haloxylon salicornicum، Heliotropium bocciferum، Launaea mucronata، Leptadenia pyrotechnica، Monsonia nevia، وPlantago ovata. أثبتت الدراسة أن نبات التمام ينمو بنجاح في الأراضي الرملية ويتحمل الجفاف وملوحة التربة. أظهرت نتائج تحليل الانحدار المرحلي أن خصائص التربة مثل الأس الهيدروجيني، محتوى كربونات الكالسيوم، المادة العضوية، نسبة الرمل، الرطوبة، ودرجة التوصيل الكهربائي كانت الأكثر تأثيرًا في توزيع نباتات التمام في مناطق الدراسة.
Critical review
دراسة نقدية: تعتبر هذه الدراسة مهمة لفهم البيئة الطبيعية لعشيرة التمام في المنطقة الشرقية من المملكة العربية السعودية، ولكن هناك بعض النقاط التي يمكن تحسينها. أولاً، كان من الأفضل تضمين المزيد من المواقع لزيادة دقة النتائج. ثانياً، لم يتم التطرق بشكل كافٍ إلى تأثير التغيرات المناخية على نمو وتوزيع نبات التمام، وهو عامل مهم يجب أخذه في الاعتبار. أخيرًا، كان من الممكن أن تكون الدراسة أكثر شمولية إذا تم تضمين تحليلات إضافية حول تأثير الأنشطة البشرية مثل الرعي الجائر على توزيع ونمو هذه النباتات.
Questions related to the research
  1. ما هي الأنواع النباتية المصاحبة لعشيرة التمام في المنطقة الشرقية من المملكة العربية السعودية؟

    الأنواع النباتية المصاحبة تشمل Cyperus conglomertus، Eragrostis barrelieri، Haloxylon persicum، Haloxylon salicornicum، Heliotropium bocciferum، Launaea mucronata، Leptadenia pyrotechnica، Monsonia nevia، وPlantago ovata.

  2. ما هي الخصائص التربة الأكثر تأثيرًا في توزيع نباتات التمام في مناطق الدراسة؟

    الخصائص الأكثر تأثيرًا تشمل الأس الهيدروجيني، محتوى كربونات الكالسيوم، المادة العضوية، نسبة الرمل، الرطوبة، ودرجة التوصيل الكهربائي.

  3. كيف يؤثر الجفاف وملوحة التربة على نمو نبات التمام؟

    نبات التمام ينمو بنجاح في الأراضي الرملية ويتحمل الجفاف وملوحة التربة، مما يجعله نباتًا مناسبًا للبيئات القاسية.

  4. ما هي التوصيات التي قدمتها الدراسة بخصوص استخدام نبات التمام؟

    توصي الدراسة باستخدام نبات التمام كغطاء نباتي مهم في الأراضي الرملية العميقة نظرًا لتحمله للجفاف وملوحة التربة.


References used
Abbadi, G. A. andM. A. El-Sheikh (2002). Vegetation analysis of Failaka island (Kuwait). Journal of Arid Environments, 50: 153 – 165
AbdEl-Ghani, M. M. (2000). Floristics and environmental relations in two extreme desert zones of Western Egypt. Global Ecology & Biography 9, 499-516
Abou-Deya, I.B. (1984). Studies on distribution and adaptation of range plants in Sinai. Ph.D Thesis, Fac. Of Agric., Ain Shams Univ., Cairo, Egypt
rate research

Read More

The present study aimed to evaluate the productinty status of panicum turgidum (Thumam) under the environmental conditions of the eastern province of Kingdom of Saudi Arabia. Forty eight experimental sites (each of 25 m2, i.e. 1*25 m) were randoml y selected from three locations (Roads of Riyadh, Ogair and Damam), which represent the micro-environment of thumam. Obtained results showed that the dominated plant species associated with thumam were Eragrostis barrelieri, Haloxylon salicornicum, Leptadenia pyrotechnica, Plantago ovata and Zygophyllum coccineum. The forage production of thumam was 57 kg dry matter/ha. However, the nutrient value of it was relatively low due to the low protein content (4.2 %) and high crude fiber (30.2 %). Moreover, neutral detergent fiber was 62.4 %, acid detergent fiber was 65.4 % and lignin was 11.70 % which indicate low nutritional forage value, compared with traditional forage crops, i.e. Rhodesgrass (Chloris gayana) and Alfalfa ( Medicago sativa). Macronutrient contents (Na, K, Ca and Mg) were in the range of sheep and camel requirements, while P was very low as well as micronutrients (Zn, Cu and Mn).
Many of studies try to analyze the relation between human and environment which divided to physical environment and intellectual environment. Both of them represented the tow environments -Natural and Cultural-. two environments in this thesis wer e not limitation but it’s a potential power. This affective role on the urban designers will create a positive relation between public-private concept and the structure of the urban space. But this relation required being, because the being is structured and that meaning of the single situation consists in its relationship to the general structures.
This study aimed at investigating the image of women in Arabic language and social studies textbooks of primary and middle stages through the roles of women, the different social aspects and social status presented in the textbooks of Arabic langu age and social studies.
This study aimed at investigating the effect of a computerized programme on changing alternative concepts in science among second intermediate grade students in the Kingdom of Saudi Arabia in “motion and sound units”. A puroseful sample of (90) st udents was selected and students were randomly assigned to two groups: the experimental group which was taught “motion and sound” by the computerized programme, and the control group which was taught the same two units by the traditional method.
This investigation was carried out at the experimental Station of the College of Agriculture and Veterinary Medicine, King Saud University, Al-Qassim, Saudi Arabia, during the growing season 2001/2002. The objectives of the research were to study and evaluate the productivity, morphological and physiological behavior of alfalfa (Medicago sativa L.) plants grown under palm trees environment. The results proved the important effects of palm trees shading on alfalfa growth, development and productivity. Significant differences were observed between the control treatment and the two other treatments. The results also showed a significant increase in fresh and dry weight and quality characteristics except for fat percentage. This percentage increased gradually from treatment 1, which was located under palm trees, to treatment 2, which was located between palm trees to the control treatment, which was located away from palm trees, where there was no shading. The morphological and physiological characteristics did not significantly change in spite of the existed changes among their means.

suggested questions

comments
Fetching comments Fetching comments
Sign in to be able to follow your search criteria
mircosoft-partner

هل ترغب بارسال اشعارات عن اخر التحديثات في شمرا-اكاديميا