globalchange  > 气候变化事实与影响
DOI: 10.1016/j.scitotenv.2018.10.160
WOS记录号: WOS:000454418500035
论文题名:
Optimizing land management strategies for maximum improvements in lake dissolved oxygen concentrations
作者: Crossman, J.1; Futter, M. N.2; Elliott, J. A.3; Whitehead, P. G.4; Jin, L.5; Dillon, P. J.6
通讯作者: Crossman, J.
刊名: SCIENCE OF THE TOTAL ENVIRONMENT
ISSN: 0048-9697
EISSN: 1879-1026
出版年: 2019
卷: 652, 页码:382-397
语种: 英语
英文关键词: Eutrophication ; Dissolved oxygen ; Phosphorus ; Limnology ; Temperature ; Management
WOS关键词: CLIMATE-CHANGE ; PHYTOPLANKTON DYNAMICS ; PHOSPHORUS DYNAMICS ; INTEGRATED NITROGEN ; MESOTROPHIC LAKE ; MODEL STRUCTURE ; UNITED-STATES ; FISH HABITAT ; PEG-MODEL ; SIMCOE
WOS学科分类: Environmental Sciences
WOS研究方向: Environmental Sciences & Ecology
英文摘要:

Eutrophication and anoxia are unresolved issues in many large waterbodies. Globally, management success has been inconsistent, highlighting the need to identify approaches which reliably improve water quality. We used a process-based model chain to quantify effectiveness of terrestrial nutrient control measures on in-lake nitrogen, phosphorus, chlorophyll and dissolved oxygen (DO) concentrations in Lake Simcoe, Canada. Across a baseline period of 2010-2016 hydrochemical outputs from catchment models INCA-N and INCA-P were used to drive the lake model PROTECH, which simulated water quality in the three main basins of the lake. Five terrestrial nutrient control strategies were evaluated. Effectiveness differed between catchments, and water quality responses to nutrient load reductions varied between deep and shallow lake basins. Nutrient load reductions were a significant driver of increased DO concentrations, however strategies which reduced tributary inflow had a greater impact on lake restoration, associated with changes in water temperature and chemistry. Importantly, when multiple strategies were implemented simultaneously, resultant large flow reductions induced warming throughout the water column. Negative impacts of lake warming on DO overwhelmed the positive effects of nutrient reduction, and limited the effectiveness of lake restoration strategies. This study indicates that rates of lake recovery may be accelerated through a coordinated management approach, which considers strategy interactions, and the potential for temperature change-induced physical and biological feedbacks. Identified impacts of flow and temperature on rates of lake recovery have implications for management sustainability under a changing climate. (C) 2018 The Authors. Published by Elsevier B.V.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/130094
Appears in Collections:气候变化事实与影响

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作者单位: 1.Univ Windsor, Dept Earth & Environm Sci, Sunset Ave, Windsor, ON N9B 3P4, Canada
2.Swedish Univ Agr Sci, Dept Aquat Sci & Assessment, Uppsala, Sweden
3.Lancaster Environm Ctr, Ctr Ecol & Hydrol, Lake Ecosyst Grp, Lib Ave, Lancaster LA1 4AP, England
4.Univ Oxford, Ctr Environm, Oxford, England
5.SUNY Coll Cortland, Dept Geol, Cortland, NY 13045 USA
6.Trent Univ, Chem Sci, Peterborough, ON, Canada

Recommended Citation:
Crossman, J.,Futter, M. N.,Elliott, J. A.,et al. Optimizing land management strategies for maximum improvements in lake dissolved oxygen concentrations[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019-01-01,652:382-397
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