Search: onr:"swepub:oai:DiVA.org:ri-33960" >
Risk assessment of ...
Risk assessment of high concentrations of molybdenum in forage
-
- Axelsson, Ulf (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment,The Rural Economy and Agricultural Societies,The Rural Economy and Agricultural Society, Sweden;SLU Swedish University of Agricultural Science, Sweden
-
- Söderström, Mats (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment,SLU Swedish University of Agricultural Science, Sweden
-
- Jonsson, Anders (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,RISE,Jordbruk och livsmedel,SLU Swedish University of Agricultural Science, Sweden,Institutionen för mark och miljö,Department of Soil and Environment,RISE Agrifood and Biocience
-
(creator_code:org_t)
-
- 2018-06-19
- 2018
- English.
-
In: Environmental Geochemistry and Health. - : Springer Science and Business Media LLC. - 0269-4042 .- 1573-2983. ; 4:6, s. 2685-2694
- Related links:
-
https://doi.org/10.1...
-
show more...
-
https://ri.diva-port... (primary) (Raw object)
-
https://link.springe...
-
https://pub.epsilon.... (primary) (Raw object) (free)
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
https://res.slu.se/i...
-
show less...
Abstract
Subject headings
Close
- Molybdenum is toxic to ruminants when present in high levels in forage, causing physiological copper deficiency. A critical level for ruminants is 3–10 mg Mo kg−1 dry matter. The average Mo level varies considerably between different arable soils, depending mainly on soil parent material. This study investigated the possibility of using various existing sources of geospatial information (geophysical, biogeochemical and soil chemical) to develop a geography-based risk assessment system. Forage samples (n = 173) were collected in 2006–2007. Three types of national geoscientific datasets were tested: (1) SEPA topsoil, comprising data from arable land within the Swedish environmental monitoring programme; (2) SGU biogeochemical, containing data from aquatic plant root material collected in small streams; and (3) SGU geophysical, consisting of data from airborne gamma-ray scanning. The digital postcode area map was used for geocoding, with Mo concentrations in forage assigned to arable parts of the corresponding postcode area. By combining this with the three national geoscientific databases, it was possible to construct a risk map using fuzzy classification depicting High-risk, Intermediate-risk, Low-risk and Very-low-risk areas. The map was validated using 42 randomly selected samples. All samples but one with Mo > 3 mg kg−1 were found in postcode areas designated High risk. Thus, the risk map developed seems to be useful as a decision support system on where standard forage analyses need to be supplemented with Mo analyses.
Subject headings
- LANTBRUKSVETENSKAPER -- Annan lantbruksvetenskap -- Miljö- och naturvårdsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Other Agricultural Sciences -- Environmental Sciences related to Agriculture and Land-use (hsv//eng)
Keyword
- Forage
- Molybdenum
- Risk assessment
- Ruminants
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database