Spatiotemporal dynamics of water quality and eutrophication in Lake Treating urban wastewater and reducing inputs from the major rivers draining into Taihu, says Paerl, will be key to solving the lakes excess nutrient input problems.. 2016. Recent examples of eutrophication impacts include toxic algal blooms that cut off drinking water supplies for nearly 10 million people at eutrophic Lake Taihu, China, and 650,000 people in along the shores of Lake Erie, USA/Canada. Luo, L. & B. Qin, 2004. official website and that any information you provide is encrypted Once temperatures climb here in eastern Chinas muggy Jiangsu Province, a nasty blue-green alga will bloom. In many cases, these efforts dramatically increased water quality and . Sign up for the E360 Newsletter . Forecast of chlorophyll-a concentration is essential for water environment risk control in eutrophic lakes. More about Richard Stone, Never miss a feature! Pinnularia dongzhenensis sp. nov. , a new freshwater diatom species Taihu Lake is the third largest freshwater lake in China. Richard Stone oversees Science Magazines Asia news coverage. 2016 Jul;23(13):12811-21. doi: 10.1007/s11356-016-6856-1. Bottom currents appear to be a compensation flow. Provided by the Springer Nature SharedIt content-sharing initiative, Over 10 million scientific documents at your fingertips, Not logged in Hydrobiologia, 1997, 342/343: 269284, Article Kakebo - Das Haushaltsbuch: Stressfrei haushalten und sparen nach japanischem Vorbild. The water quality and eutrophication status of Taihu Lake in recent years are presented and the pollution trends are analyzed. 2018. Studies on the hydrodynamic processes and related factors in Meiliang Bay, Northern Taihu. In addition to the effects of ecological control, it introduces readers to the characteristics of NPS pollution in . Which eutrophication has occurred is? - cun.pakasak.com Environ Sci Pollut Res Int. Nitrogen biogeochemistry is intimately coupled to phytoplankton ecology (i.e., nitrogen fixing vs. non-nitrogen fixing cyanobacteria). CAS Xu, P. & B. Qin, 2005. Our study assessed the actual water situation in the estuarine area of Lake Wuli, Meiliang Bay, Lake Taihu, China, based on eutrophication levels and status of water quality using the trophic level index (TLI) and water quality index (WQI) methods. Sun, S. & Y. Huang, 1993. However, how eutrophication. Part of Springer Nature. This volume features papers presented at the International Symposium on the Eutrophication Process and Control in Large Shallow Lakes - with Special Reference to Lake Taihu, a Shallow Subtropical Chinese Lake, held in Nanjing, China, 22-26 April, 2005. In Qin, B., W. Hu & W. Chen (eds), Process and Mechanism of Environmental Changes of Lake Taihu. His writing has also appeared in Discover, Smithsonian, and National Geographic, and he is the author of Mammoth: The Resurrection of an Ice Age Giant. With the nine year of 1978-1987 the area percentage of oligotrophic lakes decreased from 3.2% to 0.53%, and that of eutrophic lakes increased from 5.0% to 55.01%. Twenty years ago, fertilizer was expensive and China possessed little equipment to apply it, says Zhu. sequencing data targeting the v6 region of microbial 16s rrna genes, we profiled temporal and spatial variations of archaeal and bacterial communities We understood that we have to clean the lake first.. Horizontal Circulation Patterns in a Large Shallow Lake: Taihu Lake Rylene Dye-Loaded Polymeric Nanoparticles for Photothermal Eradication of Harmful Dinoflagellates. . Rural Eco-environment, 2002, 17(4): 2629 (in Chinese), Kong F X, Hu W P, Fan C X, Wang S M, Xue B, Gao J F, Gu X H, Li H P, Huang W Y, Chen K N. Research and strategic thinking for water pollution control and ecological restoration in Taihu Basin. We thank Prof. Karl Havens, Prof. Wayne Gardner, and Prof. Koren Nydick for their careful reviews and constructive suggestions. Eutrophication of Shallow Lakes with Special Reference to Lake Taihu In Qin, B., W. Hu & W. Chen (eds), Process and Mechanism of Environmental Changes of Lake Taihu. Cyanobacterial bloom risk levels were estimated for three eutrophic lakes (Lakes Taihu, Chaohu, and Dianchi) from 2002 to 2020 at the pixel scale (250 m) in China. Lake Taihu, the third largest freshwater lake in southern China, has also been in a serious eutrophic status, suffering from cyanobacteria bloom in many lake regions, i.e., Bethesda, MD 20894, Web Policies Recent examples of eutrophication impacts include toxic algal blooms that cut off drinking water supplies for nearly 10 million people at eutrophic Lake Taihu, China, and 650,000 people in along the shores of Lake Erie, USA/Canada. East China Normal University Press, Shanghai, 6875 (in Chinese). Journal of Lake Sciences 16(1): 7376 (in Chinese). The hydrodynamic processes and the environmental effects in Lake Taihu. Forestry Measures for Ecologically Controlling Non-point Source Pollution in Taihu Lake Watershed, China - - Jianfeng Zhang - <br />This book mainly focuses on ecological approaches for preventing and controlling non-point source (NPS) pollution on the basis of forestry measures. In Taihu tributaries and the more than 100 canals that feed into the lake, water quality is quite bad, according to Zhu. Chemosphere, 2003, 50(6): 707710, Jukka H, Leena N. Effects of submerged macrophytes on sediment resuspension and internal phosphorus loading in Lake Hiidenvesi (southern Finland).Water Research, 2003, 37: 44684474, Frankowski L, Bolalek J, Szostck A. Phosphorus in bottom sediments of Pomeranian bay (Southern Baltic-Poland) Estuarine, Coastal and Shelf Science, 2002, 54(6): 10271038, Holdren G C Jr, Armstrong D E. Factors affecting phosphorus release from intact sediment lake cores. Many medium-sized lakes are in metrophic or eutrophic status, some local water are even approaching the hypertrophic level. Eutrophication and temperature drive large variability in carbon dioxide from China's Lake Taihu. Press of Water & Electricity, Beijing, 120 (in Chinese). Excess nutrient loads to Lake Taihu: Opportunities for nutrient Atlas of Eco-environment of Lake Taihu. The results showed that all lakes studied were commonly undergoing the eutrophication process, water quality decreased and lake's ecosystem is being declined. Nitrogen removal by denitrification during cyanobacterial bloom in Lake Reliable information about the coronavirus (COVID-19) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this WorldCat.org search.OCLC's WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus . government site. Taihu Basin Authority (TBA) & Nanjing Institute of Geography & Limnology (NIGLAS), 2000. Lake Taihu is characterized by its shallowness (mean depth=1.9m) and large surface area (2,338km2). Annual periodicity in planktonic bacterial and archaeal community The famous five freshwater lakes in China have entered into eutrophication in the condition of higher nutrient load. Among the 34 lakes studied in 1970's, most of lakes were in the mesotrophic status, mesotrophic water area accounted for 91.8%. Mean depth is 1.9 m, and maximum depth is 2.6 m corresponding to an elevation of 3.0 m above sea level. Assessment of eutrophication and water quality in the estuarine area of Monitoring trophic status using in situ data and Sentinel-2 MSI Tendency and reason for evolution toward mash in the East Taihu. Lake Taihu. Runoff sources are mostly from the mountainous west and southwest, and outflows are located throughout East Taihu. They thought it would clean the lake, says Qin, because floating macrophytes impede wind-driven algae from clumping together. In the wet (August 2017) and dry (March 2018) seaso Eutrophic trend of Lake Taihu, Chaohu and Xuanwu in the region of the middle and lower reaches of Yangtze River was predicated using the ecological stress model. Annual periodicity in planktonic bacterial and archaeal community 2005 Dec;48 Spec No:948-54. The northern edge of Chinas third largest freshwater lake by now should be choked with green slime. But the shallow lakeits deepest spot is only 3 metersis prone to eutrophication, or nutrient buildup. In addition, eutrophication can lead to reductions in local and regional biodiversity. And the Jiangsu government launched measures, such as moving chemical plants, to reduce nutrient loading. 2.1. It is shown that because of unreasonable industrial structures, pollution discharge per GDP is high within the Taihu basin, and the pollution discharge from point and non-point sources exceed the basins environmental carrying capacity. To solve this environmental problem, possible control strategies are summarized, including the control of internal pollution sources and inflow-river pollution, ecological restoration and reconstruction of the degraded lakeside zone ecosystem, clean water diversion, dredging, and manual algae removal. Journal of Agro-Environment Science, 2007, 26(1): 2428 (in Chinese), Xu P Z, Qin B Q, Behrendt H, Huang W Y, Yu S M, Zhang Y P. Nitrogen surplus of the upstream agricultural land of Lake Taihu and the eutrophication impact. Therefore, in 2030 the urban lakes in China might be eutrophication or hypertrophication, and most of the medium-sized lakes at the urban-rural fringe might be in eutrophication or hypertrophication. Sun, S., Y. Wu & B. Dong, 1987. Provincial water managers cultivated and reintroduced marcophytes. Outside the experimental boundaries, however, the attempt at a natural antidote failed. Remote sensing estimation of chlorophyll-a concentration in Taihu Lake Natural vs. Human-Induced Eutrophication The process of eutrophication is natural 2. But to eliminate the bloomsand restore Taihus natural orderwill take decades more. Lake Taihu is situated in a temperate and subtropical zone, with a humid and semi-humid monsoon climate. In May 2007, a massive Microcystis bloom overwhelmed a waterworks that supplies Wuxi city on Taihus northern shore, leaving more than 2 million people without drinking water for a week. An official website of the United States government. In many cases, these efforts dramatically increased water quality and . Google Scholar. Ecosystem services (ESs) in rapidly urbanizing agricultural basins are vulnerable to environmental changes. Lake Taihu, Hongze and Caohu are already in eutrophic state. For example, in eutrophic freshwater Lake Taihu, water temperature, chlorophyll a and phytoplankton density were the main factors driving the variation of bacterial community composition and structure between seasons (Zhu et al. The estimation of chlorophyll-a concentrations (Chla) in lakes using remote sensing is convenient, but its use remains challenging in large eutrophic water bodies due to the great spatial and temporal variations of its optical properties. Water quality is no longer deteriorating, says NIGLAS ecologist Qin Boqiang. Effects of Sediment Dredging on Nutrient Release and Eutrophication in C: Life Sciences) (Special Issue), 2005, 48: 948954, Huang W Y, Gao G, Shu J H, Zhou X W, Jiang Y C. Effect of banning phosphate in detergents on the eutrophication of Taihu Lake. Front. Wuxi residents complained that their tap water stank. A winning strategy may require both quick fixes like dredging and dogged long-term efforts to curtail nutrient loading, says Steven Wilhelm, a microbiologist with University of Tennessee, Knoxville, who was at Taihu last month for fieldwork. In contrast, urban pollutants discharge into northern Taihu and result in poor water quality. Rural domestic wastewater treatment. This study developed an effective method for the change trend forecast of chlorophyll-a concentration over eutrophic lakes based on Seasonal and Trend decomposition using Loess (STL) and long short-term memory (LSTM). Mini-review on river eutrophication and bottom improvement techniques Sustainability | Free Full-Text | Eutrophication, Research and Catastrophic shifts in ecosystems. Agriculture is not the only source of nitrogen. Science Press, Beijing, 918 (in Chinese). A . For the H2O-Po, 36.7% (average) was labile . 2022 Springer Nature Switzerland AG. In Qin, B., W. Hu & W. Chen (eds), Process and Mechanism of Environmental Changes of Lake Taihu. For comparison, a similar habitat was studied in SW-Slovenia. IJERPH | Free Full-Text | Effects of Microbial Activity and ), Contribution to the Quaternary Glaciology and Quaternary Geology. National Statistics Bureau (NSB), 2000. Eutrophication in Lake Taihu, China Explored with - RISE:2022 Here, the surface partial pressure of CO2 (pCO2) and CO2 flux in Lake Taihu, a large and eutrophic lake in eastern China, was investigated based on monthly samplings over a 24yr period. The cyanobacterium, Microcystis aeruginosa, produces toxins that can damage the liver, intestines, and nervous system. The northwestern part of Lake Taihu exhibited a lower WQI and higher TLI than its southeastern part. Starting in the 1980s, Taihus ecosystem began to shift from one dominated by diatoms, a benign kind of phytoplankton, to one in which cyanobacteria reign supreme. volume581,pages 314 (2007)Cite this article. The eutrophication process and formation mechanisms of algal blooms are . ), Taihu Lake (Zhang et al. - 34.198.151.69. Study area. Science Press, Beijing: 289297 (in Chinese). Among the 34 lakes studied in 1970's, most of lakes were in the mesotrophic status, mesotrophic water area accounted for 91.8%. The nitrogen cycle includes PON, DON, NH4, NO3, NO2 and phytoplankton N with both nitrogen-14 and -15 for all species, and processes for nitrification, denitrification, phytoplankton uptake and excretion, ammonia regeneration (DON>NH4), and DNRA. Statistics Bureau of Shanghai City (in Chinese). Science Press, Beijing, 19 (in Chinese). Epub 2013 Feb 16. Luo, L., B. Qin & G. Zhu, 2004b. Science Press, Beijing, 1118. Sediment distribution pattern maped from the combination of objective analysis and geostatistics in the large shallow Lake Taihu, China. On Lake Taihu, China Moves To Battle Massive Algae Blooms Environ Sci Pollut Res Int. Science Press, Beijing, 5396 (in Chinese). The famous five biggest freshwater lakes in China might be eutrophication if control countermeasures are taken as now. Eutrophic Lake Taihu as a significant CO2 - ScienceDirect The Bottom Configuration and Recent Deposition of Lake Taihu. Current status and future tendency of lake eutrophication in China Large anthropogenic inputs of N and P alter the nutrient cycle and exacerbate global eutrophication problems in aquatic ecosystems. Native Guardians: Canadas First Nations Move to Protect Their Lands, How Digital Technology Is Helping Decode the Sounds of Nature, Last Resort: Moving Endangered Species in Order to Save Them, As UN Climate Talks Near, a Showdown on Reparations Looms, Unraveling the Causes of the Pandemic, and Preparing for the Next, The Clean Water Act at 50: Big Successes, More to Be Done, As Rio Grande Shrinks, El Paso Plans for Uncertain Water Future, Phantom Forests: Why Ambitious Tree Planting Projects Are Failing. Science Press, Beijing: 107161 (in Chinese). Microscopic examination showed that cyanobacteria were the dominant species in algal samples. Sampling sites and months in Lake Taihu for 30 sec, Annual periodicity in planktonic bacterial and archaeal community composition of eutrophic Lake Taihu 1Scientific RepoRts | 5 15488 | DOi 10 1038/srep15488 www nature com/scientificreports Annual peri[.] Spatial heterogeneity of food web structure in a large shallow 2.2. 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The eutrophication process and formation mechanisms of algal blooms are particularly complicated in shallow lakes due to the strong lake-land, air-water and water-sediment interactions. The results showed that in 2008 Lake Taihu, Chaohu and Xuanwu might be of eutrophication, eutrophication and hypertrophication, respectively if no control measurement is taken. The laboratory sediment core incubations experiments were spiked with nitrogen-15 isotopes and produce potential rates, which are not directly comparable with the model. Bioavailable Po species including labile monoester P, diester P, and phytate-like P were identified in the sequential extractions by H2O, NaHCO3, and NaOH. From Lake Erie and Lake Okeechobee in the United States to Lake Victoria in Africa and Japans largest lakes, Biwa and Kasimagaura, algal blooms are a serious threat to drinking water supplies and the ecological and economic sustainability of large freshwater ecosystems, Paerl says. A critical review of the development, current hotspots, and future directions of Lake Taihu research from the bibliometrics perspective. Epub 2019 Nov 23. Shirshov Institute of Oceanology of Russian Academy of Sciences & S.Yu. 2002AA601011), and National Natural Science Foundation of China (No. 4. MeSH Sci. Chinese Science Bulletin, 2006, 51(19): 24012412 (in Chinese), Jiangsu Provincial Key Laboratory of Environmental Engineering, Jiangsu Research Institute of Environmental Science, Nanjing, 210036, China, Limin Zhang,Minfang Xia,Lei Zhang,Chun Wang&Jilai Lu, You can also search for this author in (ed. An upward trend in total phosphorus concentration confirms ongoing eutrophication of an already eutrophic system, evidenced by consistently high values of trophic state indices. In the next 5 to 10 years, he says, well see a big improvement. He anticipates that both the area of Microcystis blooms and their duration will steadily shrink. Here, the surface partial pressure of CO 2 ( p CO 2) and CO 2 flux in Lake Taihu, a large and eutrophic lake in eastern China, was investigated based on monthly samplings over a 24-yr period (1992-2015), during which the lake experienced profound anthropogenic and climate changes. Spatiotemporal dynamics of water quality and eutrophication in Lake Treating urban wastewater and reducing inputs from the major rivers draining into Taihu, says Paerl, will be key to solving the lakes excess nutrient input problems.. 2016. Recent examples of eutrophication impacts include toxic algal blooms that cut off drinking water supplies for nearly 10 million people at eutrophic Lake Taihu, China, and 650,000 people in along the shores of Lake Erie, USA/Canada. Luo, L. & B. Qin, 2004. official website and that any information you provide is encrypted Once temperatures climb here in eastern Chinas muggy Jiangsu Province, a nasty blue-green alga will bloom. In many cases, these efforts dramatically increased water quality and . Sign up for the E360 Newsletter . Forecast of chlorophyll-a concentration is essential for water environment risk control in eutrophic lakes. More about Richard Stone, Never miss a feature! Pinnularia dongzhenensis sp. nov. , a new freshwater diatom species Taihu Lake is the third largest freshwater lake in China. Richard Stone oversees Science Magazines Asia news coverage. 2016 Jul;23(13):12811-21. doi: 10.1007/s11356-016-6856-1. Bottom currents appear to be a compensation flow. Provided by the Springer Nature SharedIt content-sharing initiative, Over 10 million scientific documents at your fingertips, Not logged in Hydrobiologia, 1997, 342/343: 269284, Article Kakebo - Das Haushaltsbuch: Stressfrei haushalten und sparen nach japanischem Vorbild. The water quality and eutrophication status of Taihu Lake in recent years are presented and the pollution trends are analyzed. 2018. Studies on the hydrodynamic processes and related factors in Meiliang Bay, Northern Taihu. In addition to the effects of ecological control, it introduces readers to the characteristics of NPS pollution in . Which eutrophication has occurred is? - cun.pakasak.com Environ Sci Pollut Res Int. Nitrogen biogeochemistry is intimately coupled to phytoplankton ecology (i.e., nitrogen fixing vs. non-nitrogen fixing cyanobacteria). CAS Xu, P. & B. Qin, 2005. Our study assessed the actual water situation in the estuarine area of Lake Wuli, Meiliang Bay, Lake Taihu, China, based on eutrophication levels and status of water quality using the trophic level index (TLI) and water quality index (WQI) methods. Sun, S. & Y. Huang, 1993. However, how eutrophication. Part of Springer Nature. This volume features papers presented at the International Symposium on the Eutrophication Process and Control in Large Shallow Lakes - with Special Reference to Lake Taihu, a Shallow Subtropical Chinese Lake, held in Nanjing, China, 22-26 April, 2005. In Qin, B., W. Hu & W. Chen (eds), Process and Mechanism of Environmental Changes of Lake Taihu. His writing has also appeared in Discover, Smithsonian, and National Geographic, and he is the author of Mammoth: The Resurrection of an Ice Age Giant. With the nine year of 1978-1987 the area percentage of oligotrophic lakes decreased from 3.2% to 0.53%, and that of eutrophic lakes increased from 5.0% to 55.01%. Twenty years ago, fertilizer was expensive and China possessed little equipment to apply it, says Zhu. sequencing data targeting the v6 region of microbial 16s rrna genes, we profiled temporal and spatial variations of archaeal and bacterial communities We understood that we have to clean the lake first.. Horizontal Circulation Patterns in a Large Shallow Lake: Taihu Lake Rylene Dye-Loaded Polymeric Nanoparticles for Photothermal Eradication of Harmful Dinoflagellates. . Rural Eco-environment, 2002, 17(4): 2629 (in Chinese), Kong F X, Hu W P, Fan C X, Wang S M, Xue B, Gao J F, Gu X H, Li H P, Huang W Y, Chen K N. Research and strategic thinking for water pollution control and ecological restoration in Taihu Basin. We thank Prof. Karl Havens, Prof. Wayne Gardner, and Prof. Koren Nydick for their careful reviews and constructive suggestions. Eutrophication of Shallow Lakes with Special Reference to Lake Taihu In Qin, B., W. Hu & W. Chen (eds), Process and Mechanism of Environmental Changes of Lake Taihu. Cyanobacterial bloom risk levels were estimated for three eutrophic lakes (Lakes Taihu, Chaohu, and Dianchi) from 2002 to 2020 at the pixel scale (250 m) in China. Lake Taihu, the third largest freshwater lake in southern China, has also been in a serious eutrophic status, suffering from cyanobacteria bloom in many lake regions, i.e., Bethesda, MD 20894, Web Policies Recent examples of eutrophication impacts include toxic algal blooms that cut off drinking water supplies for nearly 10 million people at eutrophic Lake Taihu, China, and 650,000 people in along the shores of Lake Erie, USA/Canada. East China Normal University Press, Shanghai, 6875 (in Chinese). Journal of Lake Sciences 16(1): 7376 (in Chinese). The hydrodynamic processes and the environmental effects in Lake Taihu. Forestry Measures for Ecologically Controlling Non-point Source Pollution in Taihu Lake Watershed, China - - Jianfeng Zhang - <br />This book mainly focuses on ecological approaches for preventing and controlling non-point source (NPS) pollution on the basis of forestry measures. In Taihu tributaries and the more than 100 canals that feed into the lake, water quality is quite bad, according to Zhu. Chemosphere, 2003, 50(6): 707710, Jukka H, Leena N. Effects of submerged macrophytes on sediment resuspension and internal phosphorus loading in Lake Hiidenvesi (southern Finland).Water Research, 2003, 37: 44684474, Frankowski L, Bolalek J, Szostck A. Phosphorus in bottom sediments of Pomeranian bay (Southern Baltic-Poland) Estuarine, Coastal and Shelf Science, 2002, 54(6): 10271038, Holdren G C Jr, Armstrong D E. Factors affecting phosphorus release from intact sediment lake cores. Many medium-sized lakes are in metrophic or eutrophic status, some local water are even approaching the hypertrophic level. Eutrophication and temperature drive large variability in carbon dioxide from China's Lake Taihu. Press of Water & Electricity, Beijing, 120 (in Chinese). Excess nutrient loads to Lake Taihu: Opportunities for nutrient Atlas of Eco-environment of Lake Taihu. The results showed that all lakes studied were commonly undergoing the eutrophication process, water quality decreased and lake's ecosystem is being declined. Nitrogen removal by denitrification during cyanobacterial bloom in Lake Reliable information about the coronavirus (COVID-19) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this WorldCat.org search.OCLC's WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus . government site. Taihu Basin Authority (TBA) & Nanjing Institute of Geography & Limnology (NIGLAS), 2000. Lake Taihu is characterized by its shallowness (mean depth=1.9m) and large surface area (2,338km2). Annual periodicity in planktonic bacterial and archaeal community The famous five freshwater lakes in China have entered into eutrophication in the condition of higher nutrient load. Among the 34 lakes studied in 1970's, most of lakes were in the mesotrophic status, mesotrophic water area accounted for 91.8%. Mean depth is 1.9 m, and maximum depth is 2.6 m corresponding to an elevation of 3.0 m above sea level. Assessment of eutrophication and water quality in the estuarine area of Monitoring trophic status using in situ data and Sentinel-2 MSI Tendency and reason for evolution toward mash in the East Taihu. Lake Taihu. Runoff sources are mostly from the mountainous west and southwest, and outflows are located throughout East Taihu. They thought it would clean the lake, says Qin, because floating macrophytes impede wind-driven algae from clumping together. In the wet (August 2017) and dry (March 2018) seaso Eutrophic trend of Lake Taihu, Chaohu and Xuanwu in the region of the middle and lower reaches of Yangtze River was predicated using the ecological stress model. Annual periodicity in planktonic bacterial and archaeal community 2005 Dec;48 Spec No:948-54. The northern edge of Chinas third largest freshwater lake by now should be choked with green slime. But the shallow lakeits deepest spot is only 3 metersis prone to eutrophication, or nutrient buildup. In addition, eutrophication can lead to reductions in local and regional biodiversity. And the Jiangsu government launched measures, such as moving chemical plants, to reduce nutrient loading. 2.1. It is shown that because of unreasonable industrial structures, pollution discharge per GDP is high within the Taihu basin, and the pollution discharge from point and non-point sources exceed the basins environmental carrying capacity. To solve this environmental problem, possible control strategies are summarized, including the control of internal pollution sources and inflow-river pollution, ecological restoration and reconstruction of the degraded lakeside zone ecosystem, clean water diversion, dredging, and manual algae removal. Journal of Agro-Environment Science, 2007, 26(1): 2428 (in Chinese), Xu P Z, Qin B Q, Behrendt H, Huang W Y, Yu S M, Zhang Y P. Nitrogen surplus of the upstream agricultural land of Lake Taihu and the eutrophication impact. Therefore, in 2030 the urban lakes in China might be eutrophication or hypertrophication, and most of the medium-sized lakes at the urban-rural fringe might be in eutrophication or hypertrophication. Sun, S., Y. Wu & B. Dong, 1987. Provincial water managers cultivated and reintroduced marcophytes. Outside the experimental boundaries, however, the attempt at a natural antidote failed. Remote sensing estimation of chlorophyll-a concentration in Taihu Lake Natural vs. Human-Induced Eutrophication The process of eutrophication is natural 2. But to eliminate the bloomsand restore Taihus natural orderwill take decades more. Lake Taihu is situated in a temperate and subtropical zone, with a humid and semi-humid monsoon climate. In May 2007, a massive Microcystis bloom overwhelmed a waterworks that supplies Wuxi city on Taihus northern shore, leaving more than 2 million people without drinking water for a week. An official website of the United States government. In many cases, these efforts dramatically increased water quality and . Google Scholar. Ecosystem services (ESs) in rapidly urbanizing agricultural basins are vulnerable to environmental changes. Lake Taihu, Hongze and Caohu are already in eutrophic state. For example, in eutrophic freshwater Lake Taihu, water temperature, chlorophyll a and phytoplankton density were the main factors driving the variation of bacterial community composition and structure between seasons (Zhu et al. The estimation of chlorophyll-a concentrations (Chla) in lakes using remote sensing is convenient, but its use remains challenging in large eutrophic water bodies due to the great spatial and temporal variations of its optical properties. Water quality is no longer deteriorating, says NIGLAS ecologist Qin Boqiang. Effects of Sediment Dredging on Nutrient Release and Eutrophication in C: Life Sciences) (Special Issue), 2005, 48: 948954, Huang W Y, Gao G, Shu J H, Zhou X W, Jiang Y C. Effect of banning phosphate in detergents on the eutrophication of Taihu Lake. Front. Wuxi residents complained that their tap water stank. A winning strategy may require both quick fixes like dredging and dogged long-term efforts to curtail nutrient loading, says Steven Wilhelm, a microbiologist with University of Tennessee, Knoxville, who was at Taihu last month for fieldwork. In contrast, urban pollutants discharge into northern Taihu and result in poor water quality. Rural domestic wastewater treatment. This study developed an effective method for the change trend forecast of chlorophyll-a concentration over eutrophic lakes based on Seasonal and Trend decomposition using Loess (STL) and long short-term memory (LSTM). Mini-review on river eutrophication and bottom improvement techniques Sustainability | Free Full-Text | Eutrophication, Research and Catastrophic shifts in ecosystems. Agriculture is not the only source of nitrogen. Science Press, Beijing, 918 (in Chinese). A . For the H2O-Po, 36.7% (average) was labile . 2022 Springer Nature Switzerland AG. In Qin, B., W. Hu & W. Chen (eds), Process and Mechanism of Environmental Changes of Lake Taihu. For comparison, a similar habitat was studied in SW-Slovenia. IJERPH | Free Full-Text | Effects of Microbial Activity and ), Contribution to the Quaternary Glaciology and Quaternary Geology. National Statistics Bureau (NSB), 2000. Eutrophication in Lake Taihu, China Explored with - RISE:2022 Here, the surface partial pressure of CO2 (pCO2) and CO2 flux in Lake Taihu, a large and eutrophic lake in eastern China, was investigated based on monthly samplings over a 24yr period. The cyanobacterium, Microcystis aeruginosa, produces toxins that can damage the liver, intestines, and nervous system. The northwestern part of Lake Taihu exhibited a lower WQI and higher TLI than its southeastern part. Starting in the 1980s, Taihus ecosystem began to shift from one dominated by diatoms, a benign kind of phytoplankton, to one in which cyanobacteria reign supreme. volume581,pages 314 (2007)Cite this article. The eutrophication process and formation mechanisms of algal blooms are . ), Taihu Lake (Zhang et al. - 34.198.151.69. Study area. Science Press, Beijing: 289297 (in Chinese). Among the 34 lakes studied in 1970's, most of lakes were in the mesotrophic status, mesotrophic water area accounted for 91.8%. The nitrogen cycle includes PON, DON, NH4, NO3, NO2 and phytoplankton N with both nitrogen-14 and -15 for all species, and processes for nitrification, denitrification, phytoplankton uptake and excretion, ammonia regeneration (DON>NH4), and DNRA. Statistics Bureau of Shanghai City (in Chinese). Science Press, Beijing, 19 (in Chinese). Epub 2013 Feb 16. Luo, L., B. Qin & G. Zhu, 2004b. Science Press, Beijing, 1118. Sediment distribution pattern maped from the combination of objective analysis and geostatistics in the large shallow Lake Taihu, China. On Lake Taihu, China Moves To Battle Massive Algae Blooms Environ Sci Pollut Res Int. Science Press, Beijing, 5396 (in Chinese). The famous five biggest freshwater lakes in China might be eutrophication if control countermeasures are taken as now. Eutrophic Lake Taihu as a significant CO2 - ScienceDirect The Bottom Configuration and Recent Deposition of Lake Taihu. Current status and future tendency of lake eutrophication in China Large anthropogenic inputs of N and P alter the nutrient cycle and exacerbate global eutrophication problems in aquatic ecosystems. Native Guardians: Canadas First Nations Move to Protect Their Lands, How Digital Technology Is Helping Decode the Sounds of Nature, Last Resort: Moving Endangered Species in Order to Save Them, As UN Climate Talks Near, a Showdown on Reparations Looms, Unraveling the Causes of the Pandemic, and Preparing for the Next, The Clean Water Act at 50: Big Successes, More to Be Done, As Rio Grande Shrinks, El Paso Plans for Uncertain Water Future, Phantom Forests: Why Ambitious Tree Planting Projects Are Failing. Science Press, Beijing: 107161 (in Chinese). Microscopic examination showed that cyanobacteria were the dominant species in algal samples. Sampling sites and months in Lake Taihu for 30 sec, Annual periodicity in planktonic bacterial and archaeal community composition of eutrophic Lake Taihu 1Scientific RepoRts | 5 15488 | DOi 10 1038/srep15488 www nature com/scientificreports Annual peri[.] Spatial heterogeneity of food web structure in a large shallow 2.2. 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