Eutrophic lowland swamp was investigated in the southern taiga within the Ostashkovskaya terminal moraine ridges of the Valdai Upland in the Novgorod Region. Obtained characteristics of the landscape–geochemical barrier of the swamp must be taken into account both in the search for minerals and in planning of rational nature management. The chemical composition of peats and drainage water is determined by a complex spatiotemporal interaction of surface and groundwater runoffs with the peat formation, decomposition of mineral impurities, and sorption–desorption features of peat. Si, Al, Ti, Na, K are mainly supplied with surface runoff and accumulated under the influence of a mechanical barrier and subsequent leaching of mineral impurities and sorption by peat. This results in their exponential decrease with distance from the moraine range. The distribution of Ca, Mg, S, Fe, and Mn in the lowland peat is mainly controlled by migration with groundwater. Under the influence of filtration and sorption, their contents in peat clearly mark the groundwater discharge zone. The contrast of the studied geochemical barrier calculated as the ratio of the element contents in water before and after the barrier is determined as K_Al ~ 12–10, K_Сa ~ 8–4, K_Fe ~ 6–4, K_Mn ~ 4–3, K_S ~ 2–1.5 for concentrating elements; K_{Cl, K, Na} ~ 1.5–0.8 for weakly concentrating elements; and K_Si ~ 1–0.3 for non-concentrating elements. In the humid climate, the complex geochemical barrier of the eutrophic swamp during the Holocene effectively absorbed elements as dissolved and suspended species. Moreover, the geochemical barrier is undersaturated in all elements, which indicates the high water treatment abilities of lowland eutrophic peatland.

在诺夫哥罗德地区瓦尔代高地的 Ostashkovskaya 终端冰碛脊内的南部针叶林中调查了富营养化低地沼泽。在寻找矿物和规划合理的自然管理时，必须考虑沼泽景观-地球化学屏障的获得特征。泥炭和排水的化学成分由地表和地下水径流与泥炭形成、矿物杂质分解和泥炭吸附-解吸特征的复杂时空相互作用决定。Si、Al、Ti、Na、K 主要由地表径流提供，并在机械屏障的影响下积累，随后矿物杂质的浸出和泥炭的吸附。这导致它们随着距离冰碛范围的距离呈指数下降。Ca、Mg、S、Fe、Mn在低地泥炭中的分布主要受地下水迁移控制。在过滤和吸附作用下，它们在泥炭中的含量清楚地标记了地下水排放区。将研究的地球化学屏障的对比度计算为屏障前后水中元素含量的比值，确定为 K_Al  ~ 12–10, K _Сa ~ 8–4, K _Fe ~ 6–4, K _Mn ~ 4–3, K _S ~ 2–1.5 用于浓缩元素；K _{Cl, K, Na} ~ 1.5–0.8 弱浓度元素；对于非浓缩元素，K _Si ~ 1–0.3。在潮湿气候下，全新世富营养化沼泽复杂的地球化学屏障有效地吸收了溶解和悬浮物种的元素。此外，地球化学屏障在所有元素中都不饱和，这表明低地富营养化泥炭地具有较高的水处理能力。