Climate Change Data Portal
DOI | 10.1007/s00027-019-0667-7 |
Climate change accelerates recovery of the Tatra Mountain lakes from acidification and increases their nutrient and chlorophyll a concentrations | |
Kopacek, Jiri1,2; Kana, Jiri1,2; Bicarova, Svetlana3; Brahney, Janice4; Navratil, Tomas5; Norton, Stephen A.6; Porcal, Petr1,2; Stuchlik, Evzen1 | |
发表日期 | 2019 |
ISSN | 1015-1621 |
EISSN | 1420-9055 |
卷号 | 81期号:4 |
英文摘要 | We evaluated changes in the concentration of cations, anions, nutrients (dissolved organic carbon, DOC; phosphorus, P; and nitrogen forms including nitrate, NO3- and total organic nitrogen, TON), and chlorophyll a (Chl-a) in 31 Tatra Mountain lakes in Slovakia and Poland during their recovery from acidic deposition (1992-2018). Typical effects of decreasing acidic deposition on the lakes' water composition, such as decreasing base cation concentrations, were confounded by climate change and catchment characteristics, including areal proportions of well-developed soils and scree. A climate-related increase in physical erosion provided freshly exposed unweathered granodiorite (the dominant bedrock) to chemical weathering. Dissolution of accessory calcite in the granodiorite increased the in-lake Ca2+ and HCO3- concentrations and reversed the Ca2+ trends, which originally decreased in parallel with strong acid anions. These changes were most pronounced in steep, scree-rich areas, which are most sensitive to physical weathering. Fresh apatite [Ca-5(PO4)(3)(F, Cl, OH)] in the crushed granodiorite acts as a P source at soil pH's between 4 and 5 and in the presence of chelating organic acids within soils. These conditions enhance apatite solubility, which in part explains increasing P in lakes with scree-dominated catchments. Soil recovery from acidification due to decreasing acidic deposition and the neutralizing effect of weathering of erosion-derived accessory calcite were the most likely causes of elevated DOC and P export from soils. Their elevated leaching was accompanied by increasing in-lake concentrations of Chl-a and TON. The increasing TON concentrations were, as for Ca2+, most pronounced in the scree-rich catchments, and represented the most sensitive indicator of the changes in the lake water nutrient composition. |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology |
来源期刊 | AQUATIC SCIENCES
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/103061 |
作者单位 | 1.Czech Acad Sci, Inst Hydrobiol, Biol Ctr, Na Sadkach 7, Ceske Budejovice 37005, Czech Republic; 2.Univ South Bohemia, Fac Sci, Ceske Budejovice 37005, Czech Republic; 3.Slovak Acad Sci, Earth Sci Inst, Tatranska Lomnica 05960, Slovakia; 4.Utah State Univ, Dept Watershed Sci, 5210 Old Main Hill, Logan, UT 84322 USA; 5.CAS, Inst Geol, Prague 16500 6, Czech Republic; 6.Univ Maine, Earth & Climate Sci, Orono, ME 04469 USA |
推荐引用方式 GB/T 7714 | Kopacek, Jiri,Kana, Jiri,Bicarova, Svetlana,et al. Climate change accelerates recovery of the Tatra Mountain lakes from acidification and increases their nutrient and chlorophyll a concentrations[J],2019,81(4). |
APA | Kopacek, Jiri.,Kana, Jiri.,Bicarova, Svetlana.,Brahney, Janice.,Navratil, Tomas.,...&Stuchlik, Evzen.(2019).Climate change accelerates recovery of the Tatra Mountain lakes from acidification and increases their nutrient and chlorophyll a concentrations.AQUATIC SCIENCES,81(4). |
MLA | Kopacek, Jiri,et al."Climate change accelerates recovery of the Tatra Mountain lakes from acidification and increases their nutrient and chlorophyll a concentrations".AQUATIC SCIENCES 81.4(2019). |
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