Denitrification and N2O:N2 production in temperate grasslands: processes, measurements, modelling and mitigating negative impacts.

Phosphorus sorption and supply from eutrophic lake sediment amended with thermally-treated calcium-rich attapulgite and a safety evaluation

A review of ecological restoration techniques in fluvial rivers

The effects of dredging on nitrogen balance in sediment-water microcosms and implications to dredging projects

Performance of physical and chemical methods in the co-reduction of internal phosphorus and nitrogen loading from the sediment of a black odorous river.

为学习沉积在沉积在 denitrification 上挖出的效果的一个实验通过 undredged (控制) 的一个年孵化被执行并且在实验室挖出核心。挖出上面 30 厘米沉积能显著地影响沉积的物理化学的特征。在挖出的沉积的有机物的更少的降级在实验期间被发现。在沉积的 Denitrification 率被乙炔阻塞技术估计，并且从 216 ～ 1027 nmol N2/(g 干燥重量(dw )汯 吗？

Significance of dredging on sediment denitrification in Meiliang Bay, China： A year long simulation study

denitrification 上的环境因素的规章的效果在 Meiliang 海湾的沉积被学习，泰胡·莱克，在在一个一个年时期上的一个每月的采样运动。Denitrification 率用乙炔抑制技术在地样品和丰富实验的泥浆被测量。在内部海湾和外部海湾的沉积 denitrification 率从 2.8 ～ 51.5 nmol N2/(g dw (干燥重量) 桴 ? 楦摤敬吗？

Seasonal variation of potential denitrification rates of surface sediment from Meiliang Bay, Taihu Lake, China

Surface sediments are closely related to lake black blooms. The dissolved oxygen(DO) distribution and its penetration depth in surface sediments as well as the migration and transformation of redox sensitive elements such as Fe and S at the sediment-water interface are important factors that could influence the formation of the black bloom. In this study, dredged and undredged sediment cores with diferent surface properties were used to simulate black blooms in the laboratory. The Micro Profiling System was employed to explore features of the DO and ∑ H2 S distribution at the sediment-water interface. Physical and chemical characteristics in sediments and pore waters were also analyzed. The results showed that sediment dredging efectively suppressed the black blooms. In the undredged treatment, DO penetration depth was only 50 μm. Fe2+concentrations, ∑ H2 S concentrations, and ∑ H2 S production rates were remarkably higher in surface sediments and pore waters compared to control and dredged treatments. Furthermore, depletion of DO and accumulation of Fe2+and ∑ H2 S in surface sediments and pore waters provided favorable redox environments and necessary material sources for the blooms. The study results proved that physical and chemical characteristics in surface sediments are important factors in the formation of the black bloom, and could provide scientific guidance for emergency treatment and long-term pre-control of black blooms.

Liu

Papers

Significance of dredging on sediment denitrification in Meiliang Bay, China： A year long simulation study

Seasonal variation of potential denitrification rates of surface sediment from Meiliang Bay, Taihu Lake, China

Effects of physical and chemical characteristics of surface sediments in the formation of shallow lake algae-induced black bloom