Sediment deposition is a common phenomenon in the estuary area. Pot control experiments were conducted to evaluate the interaction effects of sediment burial depth and salt stress on the seed germination and early seedling growth of Suaeda salsa (L.) Pall., an pioneer species of tidal wetland near the Yellow River Delta. The results showed that the percentage of seedling emergence, seedling emergence rate, seedling height, branch number, shoot biomass and root biomass were all significantly affected by salt stress and sediment burial depth. While the interaction of salt and burial depth significantly influenced the branch number, leaf biomass, shoot biomass and total plant biomass. Only 5 cm burial depth without salt stress should 6.25 ± 3.61% seedlings emergence. With the increasing of sediment burial depth and salt stress, percentage of seedling emergence, seedling emergence rate and plant height decreased significantly. However, under the salt treatment of 0 and 1%, the branch number increased dramatically with the increasing of sediment burial depth from 0 to 3 cm. The ratio of leaf to total biomass increased with increasing of burial depth, on the contrary, the ratio of root to total biomass decreased. 0–1 cm sediment burial depth was proved the suitable depths for seed germination of S. salsa in the coastal wetland of the Yellow River Delta. Our findings contribute to a better understanding of how to improve the seedling establishment of S. salsa under the dynamic changes of sediment deposition and salinity in the coastal wetland of the Yellow River Delta.

中文翻译：

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黄河三角洲沙地盐沼的沉积物埋深和盐分控制。

沉积物沉积是河口地区的普遍现象。进行盆栽试验，以评价沉积物埋深和盐胁迫对Suaeda salsa种子萌发和幼苗早期生长的相互作用。（L.）Pall。，黄河三角洲附近的潮汐湿地的先驱物种。结果表明，盐胁迫和沉积物埋深对幼苗出苗率，出苗率，苗高，枝数，枝生物量和根系生物量都有显着影响。盐和埋藏深度的相互作用显着影响枝数，叶片生物量，枝条生物量和植物总生物量。在没有盐分胁迫的情况下，仅5 cm的埋葬深度应能出苗6.25±3.61％。随着沉积物埋深和盐胁迫的增加，出苗率，出苗率和株高显着降低。然而，在0％和1％的盐处理下，随着沉积物埋深从0cm增加到3cm，分支数急剧增加。叶片与总生物量的比值随埋深的增加而增加，反之，根与总生物量的比值则下降。事实证明0〜1 cm的沉积物埋藏深度适合种子萌发。S. salsa在黄河三角洲的沿海湿地中。我们的发现有助于更好地了解在黄河三角洲沿海湿地沉积物和盐分动态变化的情况下，如何改善莎莎草的幼苗生长。