西非的塞内加尔,西临太平洋、北接撒哈拉大沙漠、南近赤道,在北纬12—17°之间。该国大部份地区气候干旱,土壤板结贫瘠,有大片流动沙丘和荒漠。在西北干旱风的影响下,沙丘不断南移,侵入内陆、掩埋湖泊、吞噬良田。大部分地区植被稀少、燃料极度缺乏。近十余年来,塞内加尔十分注意利用本国的乡土豆科树种并积极引入其他豆科树种资源,进行固沙造林、改良土壤以及营造薪炭林。 Senegal in West Africa, west of the Pacific Ocean, north of the Sahara Desert, south near the equator, between latitudes 12-17 °. Most parts of the country have arid climates, poor soil compaction, large mobile sand dunes and deserts. Under the influence of the arid wind in the northwest, the sand dunes continue to move southward, invading the hinterland, burying lakes and swallowing farmland. Most parts of the vegetation are scarce and fuel is extremely scarce. For more than a decade, Senegal has paid great attention to using its native leguminous tree species and actively introducing other leguminous tree species for sand fixation, soil improvement and fuelwood forests.