A study on the range ecosystem of wadi habis (Egypt)
El-Kady, H. F.
A study on the range ecosystem of wadi habis (Egypt) [electronic resource]. دراسة للنظم البيئية الرعوية لوادى حابس (مصر). - p.1107-1129.
Includes references.
Fifty stands were selected to represented Wadi Habis (300 km west of Alexandria). Species cover and phytomass were recorded and soil samples were collected. Twenty-three perennials and 10 annuals were collected to evaluate the nutritive values. The matrix of stands x species was classified using TWlNSPAN and eradicated using DECORANA techniques. The relationships between the vegetation and environmental variables were assessed statistically. Some of the diversity indices were calculated for the recognized vegetation groups in order to judge their relationships with other community and environmental properties, Five vegetation groups were recogmized: Suaeda pruinosa, Thymelaea hirsute, Lygeum sparlum, Aremisia herba-alba. Thymelaea hirsute. Artemisia herba-alba, Artemisia herba-alba. Asplrodelus ramosus and Asphodelus uamosus. Gymnocarpos decander Hygroscopic moisture, organic matter and nitrogen are the most important soil factors that affect the distribution m the vegemtion poops in this area. The preseot study indicated that each mm of annual rainfdll produced about.5.5kg day matter/ha/yr Also indicated that most oftbe species have relatively low content of P. N and K. but high ofCa, mg and Fe. In addition. Ca/P ratio was much higher than the optimum range for the animal diet. Also protein content was lower than the optimum level but the aubohydndc content is reasonable for most species.
Summary in Arabic.
Ecosystem.
Plant-soil relationships.
Plants--Environmental aspects--Egypt.
A study on the range ecosystem of wadi habis (Egypt) [electronic resource]. دراسة للنظم البيئية الرعوية لوادى حابس (مصر). - p.1107-1129.
Includes references.
Fifty stands were selected to represented Wadi Habis (300 km west of Alexandria). Species cover and phytomass were recorded and soil samples were collected. Twenty-three perennials and 10 annuals were collected to evaluate the nutritive values. The matrix of stands x species was classified using TWlNSPAN and eradicated using DECORANA techniques. The relationships between the vegetation and environmental variables were assessed statistically. Some of the diversity indices were calculated for the recognized vegetation groups in order to judge their relationships with other community and environmental properties, Five vegetation groups were recogmized: Suaeda pruinosa, Thymelaea hirsute, Lygeum sparlum, Aremisia herba-alba. Thymelaea hirsute. Artemisia herba-alba, Artemisia herba-alba. Asplrodelus ramosus and Asphodelus uamosus. Gymnocarpos decander Hygroscopic moisture, organic matter and nitrogen are the most important soil factors that affect the distribution m the vegemtion poops in this area. The preseot study indicated that each mm of annual rainfdll produced about.5.5kg day matter/ha/yr Also indicated that most oftbe species have relatively low content of P. N and K. but high ofCa, mg and Fe. In addition. Ca/P ratio was much higher than the optimum range for the animal diet. Also protein content was lower than the optimum level but the aubohydndc content is reasonable for most species.
Summary in Arabic.
Ecosystem.
Plant-soil relationships.
Plants--Environmental aspects--Egypt.