دراسة مقارنة لمراعي النحل في واديي مدر و شحوح بوادي حضرموت-الجمهورية اليمنية

Abstract EN

Bee rangeland plants are the basic sector of successful bee projects because they possess a verified range of species whose flowers contain nectar and pollen grains used in bee feeding.

This study was conducted in Maddar valley and Shohouh valley in Hadhramout valley.

The objectives of this study were conduct in the plant quantity measurements of the most important bee rangeland plants.

The survey of these rangeland plants was carried out during February and March 2017 using systematic sampling plots collection .

Results showed that the highest general means of the cubic volume crown of the most important rangeland trees and shrubs in sampling plots at Maddar valley were recorded Pithecellobium dulce followed by Ziziphus spina-christi and Acacia tortillis which reached 116.53m3, 76.91m3 and 54.145 m3 respectively.

On other hand, the highest general means of the cubic volume crown in Shohouh valley were found in Acacia tortillis, Ziziphus spina-christi and Citrus aurantifolia which reached 49.96m3, 46.205m3 and 42.63m3 respectively.

Prosopis juliflora occupied first grade for the total cubic volume crown followed by Acacia tortillis and Ziziphus spina-christi at second and third grade in the two valleys.

It was found that total cubic volume (m3) of crown in Ziziphus spina-christi was 808593.75m3 in Shohouh valley which was higher as compared to that in Maddar valley which showed 791865.36 m3 of total cubic volume of crown in Ziziphus spina-christi , whereas the total cubic volume (m3) of crown in Acacia tortillis in Maddar valley was recorded as 2663506.56 m3 which was higher as compared to that in Shohouh valley which showed 1779825 m3 of total cubic volume of crown in Acacia tortillis .