沙地飞播造林植被恢复多样性研究

Research on Diversity of Vegetation Restoration after Forestation by Aerial Seeding in Sandy Land

对鄂尔多斯市3个旗的12块样地植被多样性进行了调查分析与研究,结果表明:物种多样性主要为物种丰富度所推动,项目区植被丰富度多寡主要受植被分布的均匀程度的影响,而与植被的优势度和多样性指数没有明显关联。另外,本文进一步探讨飞播造林后植被变化规律,以期为今后沙区飞播植物种和播区选择及播后管理提供参考。

Aerial seeding forestation is the main method of forestation and sand control in Inner Mongolia Autono- mous Region, which is an important way of vegetation reconstruction and recovery in desertification land. Based on the researches on the vegetation diversity in 12 plots of Erdos, the results show that species diversity is mainly driv- en by the species richness, vegetation richness amount is mainly affected by vegetation distribution uniformity coef- ficient in project area, which is no significant association with vegetation dominance and diversity index. In addi- tion, the vegetation change regulations after forestation by aerial seeding provide references in the aerial seeding species, selection of seeding areas have been discussed further, in order to and seed planting management in future.