سهل البقاع و غور الأردن كلاهما يقعان في حفرة الانهدام الآسيوية الأفريقية
The Beqaa is a fertile valley in Lebanon, located about 30 km (19 miles) east of Beirut. The valley is situated between the Mount Lebanon to the west and the Anti-Lebanon mountain ranges to the east. It forms the northeasternmost extension of the Great Rift Valley, which stretches from Syria through the Red Sea into Africa. Beqaa Valley is about 120 km (about 75 miles) in length and has an average width of about 16 km (about 10 miles). It has a Mediterranean climate of wet, often snowy winters and dry, warm summers. The region receives limited rainfall, particularly in the north, because Mount Lebanon creates a rain shadow that blocks precipitation coming from the sea. The northern section has an average annual rainfall of 230 mm (9 inches), compared to 610 mm (24 inches) in the central valley. Two rivers originate in the valley: the Orontes (Asi), which flows north into Syria and Turkey, and the Litani, which flows south and then west to the Mediterranean Sea.
From the 1st century BC, when the region was part of the Roman Empire, the Beqaa Valley served as a source of grain for the Roman provinces of the Levant. Today the valley makes up 40 percent of Lebanon's arable land. The northern end of the valley, with its scarce rainfall and less fertile soils, is used primarily as grazing land by pastoral nomads, mostly migrants from the Syrian Desert. Farther south, more fertile soils support crops of wheat, corn, cotton, and vegetables, with vineyards and orchards centered around Zahle. The valley also produces hashish and cultivates opium poppies, which are exported as part of the illegal drug trade. Since 1957 the Litani hydroelectricity project—a series of canals and a dam located at Lake Qaraoun in the southern end of the valley—has improved irrigation to farms in Beqaa Valley.
اما الأغوار فكمية الامطار بها أقل
سهل البقاع أفضل للزراعة من الأغوار وذلك بسبب العاملين في النص السابق باللون الاحمر و الأخضر
رد: اوجه التشابه والاختلاف بين سهل البقاع وغور الاردن
العرض العادي
