TY - JOUR

T1 - Selenium cycling through agricultural grasslands in the UK

T2 - budgeting the role of the atmosphere

AU - Haygarth, P. M.

AU - Jones, K. C.

AU - Harrison, A. F.

PY - 1991/4/1

Y1 - 1991/4/1

N2 - Two idealised Se budget scenarios have been generated to assess the role of atmospheric cycling on the Se status of UK agricultural grasslands. Based on a thorough literature review, the budgets demonstrate that varying the factors for losses by volatilisation from plants and soils or inputs by deposition may significantly affect the net balance of a grassland. The contribution of wet, dry, vapour and particulate deposition inputs to the soil-herbage system are assessed and are thought to be dominated by a soluble form in wet deposition. The total input is calculated to be typically in the range 0.2-0.7 mg m-2 year-1. Volatile losses from the soil are difficult to derive accurately, but are estimated to range between 0.1 and 10 mg m-2 year-1. The budget suggests there is a net input of Se to herbage from the atmosphere, even in remote/rural locations, where inputs are generally low. The implications for the availability of Se to plants and grazing livestock are briefly considered.

AB - Two idealised Se budget scenarios have been generated to assess the role of atmospheric cycling on the Se status of UK agricultural grasslands. Based on a thorough literature review, the budgets demonstrate that varying the factors for losses by volatilisation from plants and soils or inputs by deposition may significantly affect the net balance of a grassland. The contribution of wet, dry, vapour and particulate deposition inputs to the soil-herbage system are assessed and are thought to be dominated by a soluble form in wet deposition. The total input is calculated to be typically in the range 0.2-0.7 mg m-2 year-1. Volatile losses from the soil are difficult to derive accurately, but are estimated to range between 0.1 and 10 mg m-2 year-1. The budget suggests there is a net input of Se to herbage from the atmosphere, even in remote/rural locations, where inputs are generally low. The implications for the availability of Se to plants and grazing livestock are briefly considered.

U2 - 10.1016/0048-9697(91)90355-I

DO - 10.1016/0048-9697(91)90355-I

M3 - Journal article

AN - SCOPUS:0025922803

VL - 103

SP - 89

EP - 111

JO - Science of the Total Environment, The

JF - Science of the Total Environment, The

SN - 0048-9697

IS - 1

ER -