Research output: Contribution to Journal/Magazine › Special issue › peer-review
Research output: Contribution to Journal/Magazine › Special issue › peer-review
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TY - JOUR
T1 - Estimating phosphorus delivery with its mitigation measures from soil to stream using fuzzy rules
AU - Zhang, Ting
AU - Page, Trevor
AU - Heathwaite, Louise
AU - Beven, Keith
AU - Oliver, David
AU - Haygarth, Philip
PY - 2013/3
Y1 - 2013/3
N2 - To meet our environmental management responsibilities there is a need to estimate the likely effect of current and future soil and land management policies on water quality and choose the most effective strategies given catchment characteristics, climate and economic drivers. Efficient management of diffuse phosphorus (P) delivery from agricultural soils to streams requires mitigation strategies to be modelled such that catchment mitigation strategies can be optimised. Owing to limited catchment scale experimental results upon which a mitigation measure rule-base can be based, expert opinion was employed to make scale-dependent extrapolations from the information available. Riparian buffer zone and wetlands are selected as two examples showing how the fuzzy rules are built. We discuss the challenges in the derivation and implementation of the fuzzy rules for the mitigation measures effectiveness such as, P trapping efficiency, up-scaling process, catchment properties effect and the combination effect. The results demonstrated how effective each mitigation method could be for reducing the P delivery coefficient and that mitigation options should be selected according to catchment properties. This model can be applied for the evaluation of the effect of installed and to be installed mitigation measures on P delivery coefficient and give support for land management strategies.
AB - To meet our environmental management responsibilities there is a need to estimate the likely effect of current and future soil and land management policies on water quality and choose the most effective strategies given catchment characteristics, climate and economic drivers. Efficient management of diffuse phosphorus (P) delivery from agricultural soils to streams requires mitigation strategies to be modelled such that catchment mitigation strategies can be optimised. Owing to limited catchment scale experimental results upon which a mitigation measure rule-base can be based, expert opinion was employed to make scale-dependent extrapolations from the information available. Riparian buffer zone and wetlands are selected as two examples showing how the fuzzy rules are built. We discuss the challenges in the derivation and implementation of the fuzzy rules for the mitigation measures effectiveness such as, P trapping efficiency, up-scaling process, catchment properties effect and the combination effect. The results demonstrated how effective each mitigation method could be for reducing the P delivery coefficient and that mitigation options should be selected according to catchment properties. This model can be applied for the evaluation of the effect of installed and to be installed mitigation measures on P delivery coefficient and give support for land management strategies.
KW - mitigation strategy
KW - phosphorus delivery
KW - fuzzy modelling
KW - constructed wetlands
KW - Riparian buffer zones
KW - water quality
U2 - 10.1111/j.1475-2743.2012.00433.x
DO - 10.1111/j.1475-2743.2012.00433.x
M3 - Special issue
VL - 29
SP - 187
EP - 198
JO - Soil Use and Management
JF - Soil Use and Management
SN - 0266-0032
IS - Suppl. s1
ER -