Sabkhas是独一无二的,高盐分生态系统,特别适应的植物可以生长。Aeluropuslagopoides(L.)Thwaites是一种盐生牧草植物,生长在沙特阿拉伯内陆和沿海sabkhas的盐沼栖息地。本研究对沙特阿拉伯五个不同地区的A.lagopoides群落的植被组成和分布进行了分析,强调影响物种分布的环境因素。植物区系调查显示存在48种,属于26个家庭。禾本科,藜科,含羞草科,菊科,菊科是最大的科(占总物种的50%)。Phanerophyte,其次是风生植物,是最常见的形式,表明典型的盐沙漠生命形态谱。植被分析揭示了阿哥大在所有地点的优势,它是Qareenah最主要的物种,Qaseem,和Salwa地点,以及Jouf和Jizan地区的第二主要物种。这种盐生草在沙巴哈斯广泛的土壤中的繁茂表明了它对恶劣环境的适应性,这可以归因于它的结构适应和修改,以及表型可塑性。Qareenah和Qaseem地区的物种丰富度和均匀度最高,而吉赞的位置是最不多样化的。在研究的地点内,其他高耐盐物种被确定为丰度高,如埃及基地(Hasselq。)Zohary,Zygophylum专辑L.f.,金柳(Ehrenb。)Bunge,CressacreticaL.,土壤分析表明,研究地点之间所有参数的显着变化,除了pH值,氯化物,和粘土含量。Qaseem位置揭示了大多数土壤参数的最高值,而吉赞位置显示最低。典型对应分析(CCA)表明,群落结构和多样性主要受土壤盐分和水分的影响。由于A.lagopoides作为饲料植物和沙子稳定剂的经济潜力,保护其栖息地至关重要。此外,这种草可以被整合为一种有前途的牧草候选,可以种植在受盐碱影响的地区,即使在夏季干旱季节。
Sabkhas are unique, highly saline ecosystems, where specially adapted plants can grow. Aeluropus lagopoides (L.) Thwaites is a halophytic forage plant growing in salt marsh habitats of inland and coastal sabkhas of Saudi Arabia. The present study provides an analysis of vegetation composition and distribution of the A. lagopoides community in five different regions within Saudi Arabia, emphasizing the environmental factors that affect species distribution. The floristic survey revealed the presence of 48 species, belonging to 26 families. Poaceae, Chenopodiaceae, Mimosaceae, Zygophyllaceae, and Asteraceae are the largest families (50% of total species). Phanerophyte, followed by chamaephytes, are the most frequent forms, indicating a typical saline desert life-form spectrum. The vegetation analysis revealed the dominance of A. lagopoides in all locations, where it was the most dominant species in Qareenah, Qaseem, and Salwa locations, and the second most dominant species in Jouf and Jizan locations. The flourishment of this halophytic grass within a wide soil range in sabkhas revealed its adaptability to the harsh environment, which could be ascribed to its structural adaptations and modifications, as well as the phenotypic plasticity. The Qareenah and Qaseem locations attained the highest species richness and evenness, while the Jizan location was the least diverse. Within the studied locations, other highly salt-tolerant species were determined with high abundances, such as Suaeda aegyptiaca (Hasselq.) Zohary, Zygophyllum album L.f., Tamarix nilotica (Ehrenb.) Bunge, Cressa cretica L., and Salicornia europaea L. The soil analysis showed a significant variation for all parameters among the studied locations, except for pH, chloride, and clay content. The Qaseem location revealed the highest values of most soil parameters, while the Jizan location showed the lowest. The canonical correspondence analysis (CCA) showed that the community structure and diversity are mainly affected by the soil salinity and moisture. Due to the economic potentialities of A. lagopoides as a forage plant and sand stabilizer, the conservation of its habitats is of vital importance. In addition, this grass could be integrated as a promising forage candidate that can be planted in saline-affected areas, even in the summer dry season.