Marra

...The regions of al-Jazira and Butana, bordered by the Nile and the Atbara, are cotton-producing regions that are the core of the Sudanese economy and are well irrigated, and are the most densely populated areas. Both Kurdfān, on the west side of the White Nile, and Darfur, located further along the western border, are completely sandy wilderness, surrounded by the Nuba and Marra mountain ranges, respectively, and are mostly hilly and mountainous. However, during the rainy season, these areas are transformed into excellent pastureland and shrub forests, including acacia, from which gum arabic is harvested.

*Some of the terminology that mentions "Marra" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…両ナイル川とアトバラ川に囲まれたジャジーラal‐Jazīra，ブターナ両地域は灌漑がいきとどいたスーダン経済の中核である綿生産地域であり，最も人口が密集する地域である。白ナイル川の西側のコルドファンKurdfān，その奥の西部国境沿いのダルフールDārfūrの両地方は完全な砂地の荒野で，それぞれヌーバ山脈，マッラMarra山脈を抱き，丘陵･山岳地帯が多い。だがここは，雨季を迎えると絶好の牧草地や，アラビアゴムを採るアカシアなどの灌木林に変貌する。…

※「Marra」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報