Al-Rowaily S R, Assaeed A M, Al-Khateeb S A, Al-Qarawi A A, Al Arifi F S
Plant Production Dept., College of Food & Agric. Sciences, King Saud University, Saudi Arabia.
Dept. Environ. & Nat. Agric. Res., College of Agric. & Food Sciences, KFU, Saudi Arabia.
Saudi J Biol Sci. 2018 Sep;25(6):1022-1026. doi: 10.1016/j.sjbs.2016.12.015. Epub 2016 Dec 24.
Saudi Arabia rangeland ecosystems have undergone intense processes of degradation for many decades because of extreme climate and human activities such as overgrazing and socioeconomic changes. In this study, Hail and Qassim Regions of Saudi Arabia covering an area about 79610.73 km were selected to study the rangeland vegetation and condition. was the most dominant species, covering more than 56% of the total area. The second prominent community was , which covers about 21% of total area. It was found that about 65% of vegetation in the surveyed area is in good or very good condition compared with about 31% in poor or deteriorated condition. Effective measures such as determination of carrying capacities and development of grazing systems have to be implemented to ensure resources sustainably.
几十年来，由于极端气候以及过度放牧和社会经济变化等人类活动，沙特阿拉伯的牧场生态系统经历了强烈的退化过程。在本研究中，选择了沙特阿拉伯哈伊勒和卡西姆地区，面积约79610.73平方千米，以研究牧场植被和状况。 是最主要的物种，覆盖总面积的56%以上。第二个突出的群落是 ，覆盖总面积的约21%。研究发现，与约31%处于不良或退化状态的植被相比，调查区域内约65%的植被状况良好或非常好。必须实施诸如确定载畜量和发展放牧系统等有效措施，以确保资源的可持续利用。
需注意，原文中部分物种名称缺失，我按原样保留了相关英文表述。
