Cadmium in upland forests after vitality fertilization with wood ash—a summary of soil microbiological studies into the potential risk of cadmium release

  title={Cadmium in upland forests after vitality fertilization with wood ash—a summary of soil microbiological studies into the potential risk of cadmium release},
  author={Jonna Perki{\"o}m{\"a}ki and Hannu Fritze},
  journal={Biology and Fertility of Soils},
The use of wood ash in forestry has been questioned because of the potential risk associated with its cadmium (Cd) content (1–30 mg kg−1). In agriculture, wood ash is only allowed for use as a fertilizer when its Cd content is below 3 mg kg−1. This restriction has not been applied to forest soils and there is a lack of knowledge about the potentially harmful effects of the Cd in wood ash on forest ecosystems. This paper summarizes our recent studies on the microbial communities of boreal… 
Bioaccumulation of cadmium in soil organisms - With focus on wood ash application.
Forest soil biotic communities show few responses to wood ash applications at multiple sites across Canada
There is interest in utilizing wood ash as an amendment in forestry operations as a mechanism to return nutrients to soils that are removed during harvesting, with the added benefit of diverting this
Biochar and Wood Ash Impacts on Soil Microbial Community Structure and Biogeochemical Functioning in Managed Ontario Forests
Biochars and wood ash could be used as valuable soil amendments in managed Canadian forests to counteract effects of full-tree harvesting and N deposition, such as soil acidification and nutrient
Wood ash applications to temperate forest ecosystems—potential benefits and drawbacks
The objectives of the present work were (a) to quantify the effects of wood ash on forest ecosystems through a meta-analysis approach associated with a detailed review of the literature (mainly
Effect of wood ash and nitrogen fertilization on soil chemical properties, soil microbial processes, and stand growth in two coniferous stands in Finland
The aim of our study was to investigate long-term effects of wood ash fertilization, given together with nitrogen, on soil chemical properties, soil microbiological processes related to C and N


A microcosmos study on the effects of cd-containing wood ash on the coniferous humus fungal community and the cd bioavailability
Background and AimsThe use of wood ash in forestry has been questioned because the cadmium (Cd) concentration of ash, which varies between 1 and 20 mg kg-1 ash, exceeds the level allowed for
Does simulated acid rain increase the leaching of cadmium from wood ash to toxic levels to coniferous forest humus microbes?
This result shows that Cd in ash was not leached into the humus due to increased deposition of acidified rain.
Effect of Cd-containing wood ash on the microflora of coniferous forest humus.
Ash protected the humus microflora from the harmful effects of Cd, and the application of ash increased the microbial activity, changed the PLFA and substrate-use patterns and increased cfu compared to the humu under pumice.
Silvicultural use of wood ashes — Effects on the nutrient and heavy metal balance in a pine (Pinus sylvestris, L) forest soil
In a sustainable forestry recirculation of nutrients through the application of ashes from forest residues can be an essential way to guarantee healthy and vital forests. Wood ashes can also be
Cadmium contamination of wood ash and fire-treated coniferous humus: Effect on soil respiration
The cadmium level which decreases the soil respiration of a Vaccinium site type forest humus to half of itsmore » original value (EC{sub 50}), to estimate how the forest treatments influence the EC{ sub 50}, and to discuss the effect of Cd addition provided by wood ash on the nutrient mineralization rate.
Effects of wood ash fertilization on forest soil chemical properties
The effects of wood ash fertilization on soil chemical properties were studied in three young Scots pine (Pinus sylvestris L.) plantations and a Norway spruce (Picea abies (L.) Karst.) plantation
The impact of forest residue removal and wood ash amendment on the growth of the ectomycorrhizal external mycelium.
Ectomycorrhizal fungi are involved in the nutrient uptake of forest trees and this study investigates the influence of intensive harvesting and wood ash fertilisation on the external EM mycelium in forest soil.
Effects of Lime and Wood Ash on Soil-solution Chemistry, Soil Chemistry and Nutritional Status of a Pine Stand in Northern Germany
Lime and wood ash may be useful to improve acidic forest soils. A field experiment was conducted in a pine stand on a sandy podzol at Fuhrberg, Germany, which involved an application of dolomitic