Impacts of landscape spatial configuration of integrated multi-pond constructed wetlands in a basin on the treatment of non-point source pollution
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Impacts of landscape spatial configuration of integrated multi-pond constructed wetlands in a basin on the treatment of non-point source pollution. / Li, Dan; Chu, Zhaosheng; Li, Pushuang; Xu, Wenyi; Wang, Enrui; Jin, Chunling; Zheng, Binghui.
I: Journal of Cleaner Production, Bind 383, 135389, 2023.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Impacts of landscape spatial configuration of integrated multi-pond constructed wetlands in a basin on the treatment of non-point source pollution
AU - Li, Dan
AU - Chu, Zhaosheng
AU - Li, Pushuang
AU - Xu, Wenyi
AU - Wang, Enrui
AU - Jin, Chunling
AU - Zheng, Binghui
PY - 2023
Y1 - 2023
N2 - To assess the retention performance of integrated multi-pond constructed wetlands (MPCWs) for the interception of non-point source (NPS) pollution in a basin, the examination of catchment divisions was applied to explore the impacts of the landscape spatial configuration of MPCWs on the treatment of NPS pollution. An empirical assessment model was established to determine the characteristics of the nitrogen and phosphorus removal performance of MPCWs in different catchment divisions. Average interception efficiencies of TN (4.18%) and TP (5.05%) in the catchment divisions were achieved. The scattered distribution of MPCWs in an annular shape in the catchment was helpful for the collection and interception of wastewater, while the spatial configuration of several MPCWs positioned in a straight line along the elevation obtained unsatisfactory interception perfor-mance. The result of the relationship between spatial configuration parameters and interception performance of MPCWs in the catchments estimated that choosing reasonable site locations, increasing the ratio of the MPCW area to the catchment area (A: Ac), the number, areas, and volume of MPCWs in the catchment, and optimizing other spatial configuration parameters such as following the flow direction, connecting to the river or ditch systems, all contributed to the interception performance of MPCWs for the NPS pollution. The overall planning perspective on local special land resources, pollution source structure, and the sustainable allocation of rural agricultural water resources for the parameters optimization of geographical landscape structure was highlighted in the scientific management of MPCWs for controlling NPS pollution in a basin.
AB - To assess the retention performance of integrated multi-pond constructed wetlands (MPCWs) for the interception of non-point source (NPS) pollution in a basin, the examination of catchment divisions was applied to explore the impacts of the landscape spatial configuration of MPCWs on the treatment of NPS pollution. An empirical assessment model was established to determine the characteristics of the nitrogen and phosphorus removal performance of MPCWs in different catchment divisions. Average interception efficiencies of TN (4.18%) and TP (5.05%) in the catchment divisions were achieved. The scattered distribution of MPCWs in an annular shape in the catchment was helpful for the collection and interception of wastewater, while the spatial configuration of several MPCWs positioned in a straight line along the elevation obtained unsatisfactory interception perfor-mance. The result of the relationship between spatial configuration parameters and interception performance of MPCWs in the catchments estimated that choosing reasonable site locations, increasing the ratio of the MPCW area to the catchment area (A: Ac), the number, areas, and volume of MPCWs in the catchment, and optimizing other spatial configuration parameters such as following the flow direction, connecting to the river or ditch systems, all contributed to the interception performance of MPCWs for the NPS pollution. The overall planning perspective on local special land resources, pollution source structure, and the sustainable allocation of rural agricultural water resources for the parameters optimization of geographical landscape structure was highlighted in the scientific management of MPCWs for controlling NPS pollution in a basin.
KW - Constructed wetlands
KW - Spatial configuration parameters optimization
KW - Geographical landscape structure
KW - Catchment division
KW - Non -point source pollution
KW - NUTRIENT CONCENTRATIONS
KW - LAND-USE
KW - WATER
KW - PHOSPHORUS
KW - MANAGEMENT
KW - REMOVAL
KW - OPTIMIZATION
KW - AGRICULTURE
KW - PERFORMANCE
KW - MITIGATION
U2 - 10.1016/j.jclepro.2022.135389
DO - 10.1016/j.jclepro.2022.135389
M3 - Journal article
VL - 383
JO - Journal of Cleaner Production
JF - Journal of Cleaner Production
SN - 0959-6526
M1 - 135389
ER -
ID: 332827470