標(biāo)題: Titlebook: Dissolved Organic Matter in Lacustrine Ecosystems; Energy Source and Sy K. Salonen,T. Kairesalo,R. I. Jones Book 1992 Springer Science+Busi [打印本頁(yè)] 作者: 無(wú)法生存 時(shí)間: 2025-3-21 18:33
書目名稱Dissolved Organic Matter in Lacustrine Ecosystems影響因子(影響力)
書目名稱Dissolved Organic Matter in Lacustrine Ecosystems影響因子(影響力)學(xué)科排名
書目名稱Dissolved Organic Matter in Lacustrine Ecosystems網(wǎng)絡(luò)公開度
書目名稱Dissolved Organic Matter in Lacustrine Ecosystems網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Dissolved Organic Matter in Lacustrine Ecosystems被引頻次
書目名稱Dissolved Organic Matter in Lacustrine Ecosystems被引頻次學(xué)科排名
書目名稱Dissolved Organic Matter in Lacustrine Ecosystems年度引用
書目名稱Dissolved Organic Matter in Lacustrine Ecosystems年度引用學(xué)科排名
書目名稱Dissolved Organic Matter in Lacustrine Ecosystems讀者反饋
書目名稱Dissolved Organic Matter in Lacustrine Ecosystems讀者反饋學(xué)科排名
作者: Ligneous 時(shí)間: 2025-3-21 23:31
Negotiating Economic Policy with the IMFpect to origin (allochthonous or autochthonous), physical state (particulate or dissolved) and phosphorus content. Samples were collected repeatedly during a two-year period with unusually variable hydrological conditions. Water from three different depths and from tributaries was analysed with stan作者: 極為憤怒 時(shí)間: 2025-3-22 02:08
https://doi.org/10.1007/978-3-662-04843-6ed. Soil and litter samples were found to leach large quantities of polyphenolic compounds. The concentration of these compounds showed a significant correlation with the organic content of the soil samples, but indicated no correlation with the litter samples. Rain simulation tests proved that fres作者: legacy 時(shí)間: 2025-3-22 05:03
Hugo Aréchiga,Leonardo Rodríguez-Sosa and discussed. Increased precipitation was responsible for the greatest changes, but a marked part (10–40%) of the increase in river transport of coloured material was independent of discharge. Possible explanations for this increase may be: increased ground water level leading to increased runoff 作者: 美學(xué) 時(shí)間: 2025-3-22 10:13
https://doi.org/10.1007/978-3-662-04843-6 have acid-base properties and metal and nutrient binding abilities. Based on these characteristics, UV irradiation, pH and the trophic status of aquatic ecosystems will influence the impact of HS on element cycling in surface waters. With climatic change and environmental pollution, UV irradiance, 作者: CRP743 時(shí)間: 2025-3-22 16:49 作者: CRP743 時(shí)間: 2025-3-22 17:50 作者: stratum-corneum 時(shí)間: 2025-3-23 00:29 作者: BINGE 時(shí)間: 2025-3-23 01:38 作者: SENT 時(shí)間: 2025-3-23 06:32
https://doi.org/10.1007/978-3-031-30203-9a mesocosm in which large filter feeders, typical of this lake in summer, were absent. During the rising phase of phytoplankton, the community was predominantly autotrophic. The most important constituents in the algal biomass were a dinoflagellate, . sp. (40–50%), and a prasinophycean, . (7%). The 作者: Consequence 時(shí)間: 2025-3-23 12:24 作者: 樸素 時(shí)間: 2025-3-23 16:53
Wartime and Postwar Historiography, 1940–53kkoj?rvi. Strong thermal and chemical stratification developed in the water column early in spring and led rapidly to anoxia in the hypolimnion, which extended to less than 1.0 m from the surface. In the epilimnion only small bacteria were abundant. In the anoxie zone both the abundance and the mean作者: Keshan-disease 時(shí)間: 2025-3-23 18:41 作者: 配置 時(shí)間: 2025-3-24 00:25
Reinventing the State of Nature are released, processed, transported to, and then further processed within the recipient waters. Operational couplings and integrations in freshwater ecosystems occur along physical and metabolic gradients of a number of scales from micrometer to kilometer dimensions. The operation and turnover of 作者: 嚙齒動(dòng)物 時(shí)間: 2025-3-24 04:14
https://doi.org/10.1007/978-0-230-59725-9oductive environment for many planktonic and periphytic animals. Impacts of moss on the metabolism of bacterioplankton, phytoplankton and Zooplankton in polyhumic water were investigated in laboratory throughflow systems. Growing . (together with epiphytic algae and bacteria) suppressed the producti作者: 芳香一點(diǎn) 時(shí)間: 2025-3-24 06:46 作者: 過剩 時(shí)間: 2025-3-24 14:26 作者: 大漩渦 時(shí)間: 2025-3-24 16:27
https://doi.org/10.1057/9780230236660est bacterial and algal densities and biomasses were recorded in the anoxic hypolimnion. The bacterial biomass in the hypolimnion was composed mainly of photosynthetic green sulphur bacteria (.) which occurred at very low light intensity (< 1.5 .mol m. s.). The numbers and biomasses of bacteria, bot作者: Ankylo- 時(shí)間: 2025-3-24 21:31
https://doi.org/10.1057/9780230236660he shoreline, which might be explained by the lower density of predators (. sp. and . sp.) in the central parts of the lake. In early summer all size classes of . exhibited upward nocturnal vertical migration, descending to the upper hypolimnion in daytime. Later in summer, when the nocturnally migr作者: 暫時(shí)別動(dòng) 時(shí)間: 2025-3-25 01:53
Developments in Hydrobiologyhttp://image.papertrans.cn/e/image/281656.jpg作者: 來(lái)自于 時(shí)間: 2025-3-25 04:02
https://doi.org/10.1007/978-94-011-2474-4Vegetation; algae; ecosystem; environment; geochemistry; mesocosm; phytoplankton; plankton作者: CANT 時(shí)間: 2025-3-25 11:09 作者: AGOG 時(shí)間: 2025-3-25 15:25
Book 1992ertheless, the biogeochemical analysis of DOM isdescribed in only a few textbooks on limnology (most thoroughly byWetzel). The orgins of dissolved organic substances are largelyphotosynthetic; DOM is either autochthonously synthesized by littoraland pelagic flora through secretions and autolysis of 作者: Monocle 時(shí)間: 2025-3-25 18:57
Extracellular enzymes in a polyhumic lake: important regulators in detritus processingssumed to undergo significant processing by microbial glycosidases and aminopeptidases. Measured enzymes are partially modified in their activity by lake water acidity, temperature and humic matter. Extracellular enzymes are regarded as important regulators in microbial detritus processing and substrate utilization.作者: 單調(diào)女 時(shí)間: 2025-3-25 23:09
Interview with Economist Juan Triana an explanation analogous to Hutchinson’s classical solution to the ‘paradox of plankton’, and differential mortality of different populations within the bacterioplankton enabled by selective grazing, infections by bacteriophages and predatory bacteria, and spatial micropatchiness.作者: SLAG 時(shí)間: 2025-3-26 03:33
Allochthonous dissolved organic matter as an energy source for pelagic bacteria and the concept of t an explanation analogous to Hutchinson’s classical solution to the ‘paradox of plankton’, and differential mortality of different populations within the bacterioplankton enabled by selective grazing, infections by bacteriophages and predatory bacteria, and spatial micropatchiness.作者: Amenable 時(shí)間: 2025-3-26 06:08 作者: invert 時(shí)間: 2025-3-26 08:30
https://doi.org/10.1007/978-3-662-04843-6tic ecosystems will influence the impact of HS on element cycling in surface waters. With climatic change and environmental pollution, UV irradiance, acidification and eutrophication may increase further. In this paper impacts of UV irradiation, pH and eutrophication on the structure, properties and biodegradation of aquatic HS are discussed.作者: sulcus 時(shí)間: 2025-3-26 15:45
Impacts of environmental changes on the biogeochemistry of aquatic humic substancestic ecosystems will influence the impact of HS on element cycling in surface waters. With climatic change and environmental pollution, UV irradiance, acidification and eutrophication may increase further. In this paper impacts of UV irradiation, pH and eutrophication on the structure, properties and biodegradation of aquatic HS are discussed.作者: Limited 時(shí)間: 2025-3-26 17:44 作者: 的闡明 時(shí)間: 2025-3-26 21:23 作者: 知識(shí)分子 時(shí)間: 2025-3-27 03:39 作者: Enrage 時(shí)間: 2025-3-27 07:42
Natural and man-caused factors affecting the abundance and cycling of dissolved organic substances ised a temporary decline in DOC concentrations in bog pools. Changes in DOC appear to affect the availability of mercury for methylation. Addition of aluminum to a small acidic lake caused a two-fold decline in DOC..Fertilization of Lake 227 caused a considerable increase in DOC, and in ratios of DOC作者: 下垂 時(shí)間: 2025-3-27 11:24
Sources, concentrations and characteristics of organic matter in softwater lakes and streams of the nificant amounts of humic matter originating from coniferous forest soils or peatland in the catchment area. In most humic lakes with a water colour of ≥ 50 g Pt m., more than half of the organic carbon in the surface water is of allochthonous origin, and in polyhumic lakes ( > 200 g Pt m.) the prop作者: 堅(jiān)毅 時(shí)間: 2025-3-27 16:36 作者: 導(dǎo)師 時(shí)間: 2025-3-27 21:44
The influence of humic substances on lacustrine planktonic food chains that metabolism of allochthonous HS underpins much of the observed activity. Studies of bacterial abundance and growth in the presence of HS support the view that bacteria are the most significant utilisers of HS. This use is apparently facilitated by photolysis of HS, particularly by short wavelen作者: 陪審團(tuán)每個(gè)人 時(shí)間: 2025-3-28 00:53 作者: Gossamer 時(shí)間: 2025-3-28 02:33
Dissolved organic carbon in a humic lake: effects on bacterial production and respiration carbon-limited bacterial growth towards mineral-nutrient-limited growth. Thus the high community respiration and frequentCO.-supersaturation in humic lakes may be caused not only by the absolute supply of organic C, but also by the stoichiometry of the dissolved nutrient pool.作者: 使乳化 時(shí)間: 2025-3-28 10:00 作者: infantile 時(shí)間: 2025-3-28 10:52 作者: anchor 時(shí)間: 2025-3-28 14:41 作者: 強(qiáng)制令 時(shí)間: 2025-3-28 19:47 作者: 小歌劇 時(shí)間: 2025-3-29 01:59
Gradient-dominated ecosystems: sources and regulatory functions of dissolved organic matter in freshn. As the dissolved organic compounds generated in the wetland and littoral interface regions move toward the open-water regions of the ecosystems, partial utilization effects a selective increase in organic recalcitrance. Even though DOC from allochthonous and from interface sources is more recalci作者: neologism 時(shí)間: 2025-3-29 05:40
Littoral-pelagial interchange and the decomposition of dissolved organic matter in a polyhumic lake from humic substances. A bacterial production efficiency of 31–38% could account for the microbial respiration in the water. The results indicated that bacterial, or detrital matter (originating largely from the littoral zone), could not obviate the need for algal food, and that a great deal of par作者: 歡樂東方 時(shí)間: 2025-3-29 09:03
Effects of different molecular weight fractions of dissolved organic matter on the growth of bacteri–66% in different MW fractions, largely depending on the nutrient concentrations, but the highest growth efficiencies were observed in HMW fractions and with glucose. The growth of algae was clearly lowest in the < 1000 MW fraction. In dim light no net growth of algae could be found. In contrast, ad作者: 滔滔不絕的人 時(shí)間: 2025-3-29 12:29
Vertical distributions of bacteria and algae in a steeply stratified humic lake under high grazing pphytes, . spp. and ., stayed mainly in the upper hypolimnion close to the oxic-anoxic boundary zone where only a small proportion of . was continuously present. Unpalatable . chrysophytes with silicified plates and bristles, and small, presumably heterotrophic, flagellates stayed in the oxic epilimn作者: 薄荷醇 時(shí)間: 2025-3-29 18:01
Migrations of haemoglobin-rich , in a small, steeply stratified, humic lake with an anoxic hypolimnicording to vertical trap experiments, large . visited the anoxic hypolimnion and might harvest its abundant food resources. The high haemoglobin content of large individuals seems a specific adaptation to allow access to low oxygen water and hence to maximize grazing potential, in both epi- and hypo作者: bronchiole 時(shí)間: 2025-3-29 20:21 作者: adjacent 時(shí)間: 2025-3-30 01:34 作者: dry-eye 時(shí)間: 2025-3-30 07:22
Negotiating Economic Policy with the IMFsed a temporary decline in DOC concentrations in bog pools. Changes in DOC appear to affect the availability of mercury for methylation. Addition of aluminum to a small acidic lake caused a two-fold decline in DOC..Fertilization of Lake 227 caused a considerable increase in DOC, and in ratios of DOC作者: intelligible 時(shí)間: 2025-3-30 11:49 作者: carotid-bruit 時(shí)間: 2025-3-30 14:48
Hugo Aréchiga,Leonardo Rodríguez-Sosaase in mean annual temperature of up to 1.5 to 4.5 °C, and in Fennoscandia possibly an increase in precipitation. The factors responsible for the observed large-scale change in humus flux may be strengthened by the increasing greenhouse impacts, and may result in more humic and coloured lakes in Fen作者: 屈尊 時(shí)間: 2025-3-30 19:05 作者: Compassionate 時(shí)間: 2025-3-31 00:46
https://doi.org/10.1007/978-3-031-57750-5ted large within-lake seasonal variations, but PDOC was at certain times, both in humic and non-humic lakes, a quantitatively very important carbon source for the heterotrophic bacteria. Under periods of comparatively low primary production, heterotrophic bacteria in humic lakes appear to utilize al作者: Visual-Field 時(shí)間: 2025-3-31 04:02 作者: beta-cells 時(shí)間: 2025-3-31 07:59 作者: 蓋他為秘密 時(shí)間: 2025-3-31 11:26
Three Case Studies in Historical Analogyespiration or community net production of plankton. Among organisms smaller than Zooplankton, bacteria seemed to be responsible for most of the respiration. The community net production was consistently negative even at the water surface, indicating an allochthonous carbon source. The results sugges作者: 果核 時(shí)間: 2025-3-31 13:43 作者: 完成 時(shí)間: 2025-3-31 18:12
Three Case Studies in Historical Analogyerial growth in batch or continuous flow experiments in order to understand how much of the total DOC can be decomposed by microbes. The assay in this approach may be microbial growth (thymidine incorporation, biomass changes) or change in the DOC (total concentrations, specific compounds, or fracti作者: 有毛就脫毛 時(shí)間: 2025-3-31 22:28
Reinventing the State of Naturen. As the dissolved organic compounds generated in the wetland and littoral interface regions move toward the open-water regions of the ecosystems, partial utilization effects a selective increase in organic recalcitrance. Even though DOC from allochthonous and from interface sources is more recalci作者: SOB 時(shí)間: 2025-4-1 04:48
https://doi.org/10.1007/978-0-230-59725-9 from humic substances. A bacterial production efficiency of 31–38% could account for the microbial respiration in the water. The results indicated that bacterial, or detrital matter (originating largely from the littoral zone), could not obviate the need for algal food, and that a great deal of par作者: Conspiracy 時(shí)間: 2025-4-1 07:52
https://doi.org/10.1057/9780230236660–66% in different MW fractions, largely depending on the nutrient concentrations, but the highest growth efficiencies were observed in HMW fractions and with glucose. The growth of algae was clearly lowest in the < 1000 MW fraction. In dim light no net growth of algae could be found. In contrast, ad作者: aphasia 時(shí)間: 2025-4-1 13:33
https://doi.org/10.1057/9780230236660phytes, . spp. and ., stayed mainly in the upper hypolimnion close to the oxic-anoxic boundary zone where only a small proportion of . was continuously present. Unpalatable . chrysophytes with silicified plates and bristles, and small, presumably heterotrophic, flagellates stayed in the oxic epilimn
