The acrotelm is one of two distinct layers in undisturbed peat bogs. It overlies the catotelm. The boundary between the two layers is defined by the transition from peat containing living plants (acrotelm) to peat containing dead plant material (catotelm).

Blanket peat has two layers, the acrotelm and catotelm. This is the upper layer of blanket peat. It is above the average water table level. It is therefore only periodically saturated. This allows air into the upper layer. Aeration triggers active decomposition (or humification) of the peat.

The acrotelm extends upward from the anaerobic catotelm and is mostly made up of living and dead components of Sphagnum plants, wherein vascular plant roots and fallen vascular plant aboveground litter occur. Well-developed acrotelms are unique to ombrotrophic bogs and provide opportunities to study atmospheric deposition and ecosystem response ...

通过相对较快的Acrotelm瓦解，只有一小部分被锁定在植物材料中的总营养物质被矿化，从而使其可用于植物开发，包括细菌和真菌活性。 Acrotelm是未受干扰的泥炭沼泽中的两个不同层之一。 它覆盖了catotelm。 两层之间的边界是由从含有泥炭的活植物（Acrotelm）过渡到含有死植物材料（Catotelm）的泥炭的过渡。 这通常与地下水位的最低水平重合。 要在收获前降低地下水位，首...

2021年5月5日 · Carbon accumulates in a peatland because more plant material is added to it than is lost via decay. Although rapid in the near surface (often called the acrotelm), decay rates in waterlogged...

2001年11月15日 · Peatland dynamics are a function of the balance of photosynthetic production of living plants atop the acrotelm (surface and upper oxic layer) and decomposition of litter and peat in both the acrotelm and the catotelm (underlying anoxic layer); all of these processes relate positively to temperature (Clymo, 1984, Clymo et al., 1998). As litter ...

2003年1月31日 · The acrotelm-catotelm model implies that most runoff production and nutrient transfer will occur within the upper peat layer, close to or at the peat surface. At the same time most models of water movement in mires are based on groundwater flow through the catotelm.

2006年1月1日 · The acrotelm–catotelm model implies that most runoff production and nutrient transfer will occur within the upper peat layer, close to or at the peat surface. This would match the findings of the catchment streamflow and water table studies discussed above.

2025年3月29日 · The upper layer of a peat bog, in which organic matter decomposes aerobically and much more rapidly than in the underlying, anaerobic catotelm. As litter accumulates at the surface the size of the catotelm increases, because the thickness of the acrotelm is limited to depth at which aerobic respiration can occur.

acrotelm 是未受干扰的泥炭沼泽中两个不同的层之一。 A horizontal band runs at the top of the 21st story facade, below a cornice, while vertical acroteria run along the roof's corners.