The aim of this study was to estimate vegetation coverage impact on the sandy beach and protective beach dune ridge (PBD) formation. Studies of the Lithuanian Baltic Sea coastal morphometric parameters and vegetation coverage projection were carried out from 1999 to 2011. In order to evaluate the dependence of the beach and the PBD morphometric parameters on the projection of vegetation coverage changes, correlation analyses were performed. A very strong link between vegetation projection coverage of the PBD top and beach width and incline of the eastern slope of PBD, and western slope vegetation projection coverage with the incline of the western slope of PBD were observed. A strong correlation relationship was observed between vegetation projection coverage of the PBD top and width of the PBD top. A medium relationship was noted between vegetation projection coverage of the PBD top with the width of the eastern slope. A negative relationship was noticed between the PBD western slope vegetation projection coverage and beach width.

It may be admitted that the projection coverage of vegetation may be used as PBD's parameter of stability as well as in the implementation of integrated coastal zone management.

这项研究的目的是估计植被覆盖度对沙滩和保护性海滩沙丘岭（PBD）形成的影响。从1999年到2011年对立陶宛波罗的海沿岸形态参数和植被覆盖度预测进行了研究。为了评估海滩和PBD形态参数对植被覆盖度变化的依赖性，进行了相关分析。在PBD顶部的植被投影覆盖率与PBD东坡的海滩宽度和倾斜之间的紧密联系以及PBD的西坡倾斜与西坡植被投影覆盖之间的联系非常紧密。在PBD顶部的植被投影覆盖率和PBD顶部的宽度之间观察到了很强的相关关系。在PBD顶部的植被投影覆盖率与东坡的宽度之间存在中等关系。PBD西坡植被投影覆盖率与海滩宽度之间存在负相关关系。

可以接受的是，植被的投影覆盖率可以用作PBD的稳定性参数，也可以用于实施沿海地区综合管理。