標題: Titlebook: Nutrient Reduction and Biomanipulation as Tools to Improve Water Quality: The Lake Ringsj?n Story; Lars-Anders Hansson,Eva Bergman Book 19 [打印本頁] 作者: estrange 時間: 2025-3-21 17:18
書目名稱Nutrient Reduction and Biomanipulation as Tools to Improve Water Quality: The Lake Ringsj?n Story影響因子(影響力)
書目名稱Nutrient Reduction and Biomanipulation as Tools to Improve Water Quality: The Lake Ringsj?n Story影響因子(影響力)學科排名
書目名稱Nutrient Reduction and Biomanipulation as Tools to Improve Water Quality: The Lake Ringsj?n Story網(wǎng)絡公開度
書目名稱Nutrient Reduction and Biomanipulation as Tools to Improve Water Quality: The Lake Ringsj?n Story網(wǎng)絡公開度學科排名
書目名稱Nutrient Reduction and Biomanipulation as Tools to Improve Water Quality: The Lake Ringsj?n Story被引頻次
書目名稱Nutrient Reduction and Biomanipulation as Tools to Improve Water Quality: The Lake Ringsj?n Story被引頻次學科排名
書目名稱Nutrient Reduction and Biomanipulation as Tools to Improve Water Quality: The Lake Ringsj?n Story年度引用
書目名稱Nutrient Reduction and Biomanipulation as Tools to Improve Water Quality: The Lake Ringsj?n Story年度引用學科排名
書目名稱Nutrient Reduction and Biomanipulation as Tools to Improve Water Quality: The Lake Ringsj?n Story讀者反饋
書目名稱Nutrient Reduction and Biomanipulation as Tools to Improve Water Quality: The Lake Ringsj?n Story讀者反饋學科排名
作者: 前面 時間: 2025-3-21 20:53 作者: clarify 時間: 2025-3-22 02:59
https://doi.org/10.1007/978-94-017-2462-3Eutrophication; Phosphor; Plankton; benthic; blue-green algae; catchment area; cyprinid reduction; fish exp作者: colostrum 時間: 2025-3-22 07:58
,Lake Ringsj?n: its catchment area, its history and its importance,pecific chapters. We briefly describe human activities and land use, as well as the human demographics in the catchment area. Moreover, we present important historical events behind the development and present status of Lake Ringsj?n. Finally, we describe the importance of the lake as a production u作者: 設想 時間: 2025-3-22 08:51 作者: Infirm 時間: 2025-3-22 16:39
,Internal phosphorus loading in Lake Ringsj?n,y shallow lakes which for decades have received excessive amounts of nutrients. The inertia is due to large amounts of phosphorus (P) stored in sediments and biota, causing internal phosphorus loading. Much of this phosphorus is thought to be released from the organic-rich profundal sediments. In La作者: 防銹 時間: 2025-3-22 17:28 作者: 小故事 時間: 2025-3-22 23:00
,Autumn waterfowl abundance in Lake Ringsj?n, 1968–1996,on. We have quantified staging waterfowl populations from 1968, before the eutrophication process reached its maximum, to 1996 when both the nutrient and fish reduction programmes were performed. The general pattern is that high numbers staged in Lake Ringsj?n in 1968–1972. In the following 15 years作者: 消極詞匯 時間: 2025-3-23 04:19 作者: 使堅硬 時間: 2025-3-23 07:46 作者: figure 時間: 2025-3-23 13:21
The effects of cyprinid reduction on the fish community,e different Basins of Lake Ringsj?n were followed between 1987 and 1994. In 1990, c. 100 tons (60% of the community) were removed from S?tofta Basin, in 1988, c. 500 tons (80%) were removed from Eastern Basin and in 1992, c. 120 tons (50%) of cyprinids were removed from Western Basin. In all basins,作者: maladorit 時間: 2025-3-23 13:53 作者: finite 時間: 2025-3-23 20:07
Juvenile fish expansion following biomanipulation and its effect on zooplankton,tween 1987 and 1994, the total planktivore biomass decreased fourfold whereas the abundance of 0+ fish increased twenty times. The resulting change in predation pressure from planktivorous fish on zooplankton increased up to 2–3 times, after the fish reduction. We conclude that after an initial decr作者: GULP 時間: 2025-3-23 23:45
Impact of cyprinid reduction on the benthic macroinvertebrate community and implications for increabjected to a substantial reduction of cyprinids (mainly bream and roach). Being totally dominated by chironomids and oligochaetes during the 1980s, the lake became repopulated by groups like Amphipoda, Ephemeroptera, Coleoptera and Mollusca after the fish reduction in 1988–1992. These groups appeare作者: 無可爭辯 時間: 2025-3-24 04:27
,The development of submerged macrophytes in Lake Ringsj?n after biomanipulation, and 1996, and compared with data from 1947 and 1988, in order to investigate the development of submerged macrophytes after the biomanipulation of the lake (completed 1992). The submerged vegetation has declined considerably since 1947, both in species number and outer water depth. The submerged ma作者: diabetes 時間: 2025-3-24 06:45
,The occurrence of toxic blue-green algae in Lake Ringsj?n, southern Sweden, despite nutrient reduct with a high biomass of blue-green algae as early as 1968. A mouse bioassay in the 1980s confirmed the occurrence of hepatotoxic algae. In 1995, phytoplankton biomass and microcystin concentrations were measured. A mouse bioassay was carried out simultaneously showing that from the end of June, when作者: evaculate 時間: 2025-3-24 14:43
,Simulating the effects of biomanipulation on the food web of Lake Ringsj?n,the long-term effects of biomanipulation in terms of reduction of omnivorous fish. The model contains 14 state variables, each with a differential equation describing sources and sinks of phosphorus. The state variables encompass piscivorous and omnivorous fish, zooplankton, phytoplankton, sediment 作者: 散開 時間: 2025-3-24 16:05 作者: Mercurial 時間: 2025-3-24 21:39
nfigurations were compared: (1) surface strips on two interconnectors to be joined are crossed, (2) surface strips on the two interconnectors are parallel. Effects of surface stripes on the electrical-thermal–mechanical behaviors in PGRW of Al interconnectors were investigated by a combination of mi作者: Painstaking 時間: 2025-3-24 23:13
Lars-Anders Hansson,Magnus Enell,Eva Bergmannfigurations were compared: (1) surface strips on two interconnectors to be joined are crossed, (2) surface strips on the two interconnectors are parallel. Effects of surface stripes on the electrical-thermal–mechanical behaviors in PGRW of Al interconnectors were investigated by a combination of mi作者: 枯燥 時間: 2025-3-25 06:53 作者: PHIL 時間: 2025-3-25 08:22
Wilhelm Granéliics by data-driven approaches. Spectral analysis shows that weld widths are apparently changed due to low-frequency variations of the welder’s hand movement, which can be filtered by a low-pass filter to remove the high-frequency components. The effect of welding torch orientation on weld pool dynam作者: arbovirus 時間: 2025-3-25 15:10 作者: GUISE 時間: 2025-3-25 16:12 作者: 平躺 時間: 2025-3-25 23:49 作者: AMPLE 時間: 2025-3-26 03:55
Stellan F. Hamrinnsile testing machine was used. The formation of the weld surface by different scanning methods was studied. The influence of cross section morphology and microhardness of welded joints and The Effect of microstructure on mechanical properties of the welded joint. The results showed that in working 作者: NATAL 時間: 2025-3-26 07:39
Eva Bergman,Stellan F. Hamrin,Pia Romare judgment of welding quality monitoring. Arc sound signal is one of the associated signals of welding penetration state. It has been proved to be effective and essential information for weld quality control. In this paper, the author summarized all the recent research on welding arc sound in SJTU. F作者: 隱語 時間: 2025-3-26 09:43
Eva Bergman,Eva Bergstrand judgment of welding quality monitoring. Arc sound signal is one of the associated signals of welding penetration state. It has been proved to be effective and essential information for weld quality control. In this paper, the author summarized all the recent research on welding arc sound in SJTU. F作者: 同步左右 時間: 2025-3-26 15:47 作者: 憤慨點吧 時間: 2025-3-26 19:15 作者: 老巫婆 時間: 2025-3-27 00:46
John A. Strandthe interference of ambient noise, the arc sound signal is highly complex and noisy, which seriously limits the application of arc sound signals. In this paper, a single-channel blind source separation (BSS) algorithm based on the ensemble empirical mode decomposition (EEMD) is proposed to purify an作者: INCH 時間: 2025-3-27 02:13 作者: MURAL 時間: 2025-3-27 07:47 作者: 官僚統(tǒng)治 時間: 2025-3-27 10:18
E. Bergman,L.-A. Hansson,A. Persson,J. Strand,P. Romare,M. Enell,W. Granéli,J. M. Svensson,S. F. Hamo the stair-stepping effect and the liquidity of molten metal, the achieved geometric accuracy and surface quality are still very limited. The combination of WAAM and machining, namely hybrid manufacturing, provides a fundamental solution to the above problem. Because machining is performed after de作者: cocoon 時間: 2025-3-27 13:36
Book 1999-green algal blooms.Although it is a case study of Lake Ringsj?n (southern Sweden),the background, problems and measures are applicable to many lakesthroughout the world. From a limnological point of view, the LakeRingsj?n story began more than 100 years ago, and during the last20 years the sampling作者: 除草劑 時間: 2025-3-27 19:33
sance blue-green algal blooms.Although it is a case study of Lake Ringsj?n (southern Sweden),the background, problems and measures are applicable to many lakesthroughout the world. From a limnological point of view, the LakeRingsj?n story began more than 100 years ago, and during the last20 years th作者: 侵略者 時間: 2025-3-27 22:56 作者: Graduated 時間: 2025-3-28 02:40 作者: FOR 時間: 2025-3-28 09:48
Lack of a top-down effect on the zooplankton community after a cyprinid reduction, for a proportional length measurement of all grazers (=cladocerans+calanoid copepods). We found no evidence of a top-down effect on zooplankton biomass or length following the reduction in planktivorous fish. The possibility of an ‘indirect bottom-up effect’ due to cyprinid fish directly affecting nutrient availability is discussed.作者: 臆斷 時間: 2025-3-28 12:39 作者: PHON 時間: 2025-3-28 15:58 作者: DIKE 時間: 2025-3-28 21:29 作者: Deduct 時間: 2025-3-29 01:05 作者: 正論 時間: 2025-3-29 05:24 作者: Senescent 時間: 2025-3-29 09:27
,Internal phosphorus loading in Lake Ringsj?n, the sediments of S?tofta Basin. Although there are no direct quantifications of phosphorus release from the sediments in Lake Ringsj?n, measurements of phosphorus concentrations in the water mass as well as budget calculations for the three basins clearly show a high capacity for internal loading. 作者: 慢跑鞋 時間: 2025-3-29 12:00 作者: lavish 時間: 2025-3-29 16:11
,Planning and execution of the fish reduction in Lake Ringsj?n,nto the lake reduced the initial daily catch to 2–3 tons. A grand total of 240 tons of fish were removed by trawling Lake Ringsj?n over a 3 year period. The catch was either fermented with myric acid or deep-frozen before being used as mink and pelican food respectively. Some of the catch was also u作者: Choreography 時間: 2025-3-29 21:15 作者: 尖牙 時間: 2025-3-30 03:44
Impact of cyprinid reduction on the benthic macroinvertebrate community and implications for increa potential role of an increased macroinvertebrate abundance due to fish removal and its effects on recirculation of nutrients over the sediment?awater interface is discussed. It was observed that average total nitrogen retention in Lake Ringsj?n before and after the reduction was 59±5% and 82±15%, r作者: FUME 時間: 2025-3-30 04:44
,Simulating the effects of biomanipulation on the food web of Lake Ringsj?n,resulting from the performed biomanipulation. This discrepancy may partly be attributed to structural uncertainties in the model, related to the size structure of predators on zooplankton, i.e. the omnivorous fish community. The simulations suggest that phosphorus was routed along the pelagic food c作者: CRACK 時間: 2025-3-30 11:16
Synthesis of theoretical and empirical experiences from nutrient and cyprinid reductions in Lake Rid further, despite an increase in phosphorus loading. An unexpected effect of the biomanipulation was an increase in benthic invertebrate and staging waterfowl abundances, which occurred 2–4 years after fish reduction. Hence, the response in the benthic community following biomanipulation was consid作者: Ligament 時間: 2025-3-30 15:56
