ordosica is highly tolerant to moderate burial and denudation, showing adaptive responses that likely increase survival. Seedling burial led to higher biomass investment in shoots, while the reverse was the case in denudation. Seedling growth in leaf area, height, and biomass only declined in severe denudation or complete burial. Seedling survivorship was unaffected by moderate burial (<5 cm in S1 <10 cm in S2) or denudation (<10 cm), but it was significantly reduced under complete burial or severe denudation. S2 seedlings had a higher survivorship than S1 seedlings, especially under severe denudation (10 cm) and complete burial (5 cm in S1 10 cm in S2). Seedlings from two cohorts with height of 5.0 ± 0.02 cm ( S1) and 9.3 ± 0.09 cm ( S2) were selected and randomly subjected to three denudation treatments (2.5, 5, and 10 cm), five burial treatments (2.5, 5, 7.5, 10, and 15 cm), or a control. A field experiment was conducted with Artemisia ordosica, a dominant semi-shrub species in Mu Us sandland, China, to test seedling survival and growth under different degrees of denudation and burial. Seedlings in such an environment often experience various degrees of denudation or burial. Sand movement is a common stress for plants in dune ecosystems.
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