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| 1 | The Chrysanthemum nankingense Genome Provides Insights into the Evolution and Diversification of Chrysanthemum Flowers and Medicinal Traits显示文摘The Asteraceae (Compositae),a large plant family of approximately 24 000-35 000 species,accounts for^10% of all angiosperm species and contributes a lot to plant diversity.The most representative members of the Asteraceae are the economically important chrysanthemums (Chrysanthemum L.)that diversified through reticulate evolution.Biodiversity is typically created by multiple evolutionary mechanisms such as wholegenome duplication 0NGD)or polyploidization and locally repetitive genome expansion.However,the lack of genomic data from chrysanthemum species has prevented an in-depth analysis of the evolutionary mechanisms involved in their diversification.Here,we used Oxford Nanopore long-read technologyto sequence the diploid Chrysanthemum nankingense genome,which represents one of the progenitor genomes of domesticated chrysanthemums.Our analysis revealed that the evolution of the C.nankingense genome was driven by bursts of repetitive element expansion and WGD events including a recentWGD that distinguishes chrysanthemum from sunflower,which diverged from chrysanthemum approximately 38.8 million years ago.Variations of ornamental and medicinal traits in chrysanthemums are linked to the expansion of candidate gene families by duplication events including paralogous gene duplication.Collectively,our study of the assembled reference genome offers new knowledge and resources to dissect the history and pattern of evolution and diversification of chrysanthemum plants,and also to accelerate their breeding and improvement. | Chi Song Yifei Liu Aiping Song Gangqiang Dong Hongbo Zhao Wei Sun Shyam Ramakrishnan Ying Wang Shuaibin Wang Tingzhao Li Yan Niu Jiafu Jiang Bin Dong Ye Xia Sumei Chen Zhigang Hu Fadi Chen Shilin Chen | 2018 | Molecular Plant2018,11,12: | 24 |
| 2 | Current achievements and future prospects in the genetic breeding of chrysanthemum:a review显示文摘Chrysanthemum(Chrysanthemum morifolium Ramat.)is a leading flower with applied value worldwide.Developing new chrysanthemum cultivars with novel characteristics such as new flower colors and shapes,plant architectures,flowering times,postharvest quality,and biotic and abiotic stress tolerance in a time-and cost-efficient manner is the ultimate goal for breeders.Various breeding strategies have been employed to improve the aforementioned traits,ranging from conventional techniques,including crossbreeding and mutation breeding,to a series of molecular breeding methods,including transgenic technology,genome editing,and marker-assisted selection(MAS).In addition,the recent extensive advances in high-throughput technologies,especially genomics,transcriptomics,proteomics,metabolomics,and microbiomics,which are collectively referred to as omics platforms,have led to the collection of substantial amounts of data.Integration of these omics data with phenotypic information will enable the identification of genes/pathways responsible for important traits.Several attempts have been made to use emerging molecular and omics methods with the aim of accelerating the breeding of chrysanthemum.However,applying the findings of such studies to practical chrysanthemum breeding remains a considerable challenge,primarily due to the high heterozygosity and polyploidy of the species.This review summarizes the recent achievements in conventional and modern molecular breeding methods and emerging omics technologies and discusses their future applications for improving the agronomic and horticultural characteristics of chrysanthemum. | Jiangshuo Su Jiafu Jiang Fei Zhang Ye Liu Lian Ding Sumei Chen Fadi Chen | 2019 | Horticulture Research2019,6,1: | 13 |
| 3 | Advances and problems in hydrocarbon exploration in the Tazhong area, Tarim Basin显示文摘Located in the middle of the Tarim Basin, Tazhong is a typical area of compound reservoirs rich in oil and gas found in the Carboniferous, Silurian and Ordovician strata. The proved, probable and possible reserves (3P reserves) in the area amount to 5×108 tons, so it is of great significance to study the advances and problems in hydrocarbon exploration in the Tazhong area. On the basis of exploration history and analysis of scientific problems, we outline eight achievements: distribution characteristics of reservoirs, stages of reservoir formation, different sources of oil and gas and their respective contributions, the effective regional caprock and reservoir-caprock combinations dominating the vertical distribution of hydrocarbon reservoirs, the control of the Tazhong Palaeo-uplift on reservoir formation and establishing geologic models, structure balance belts influencing the reconstruction and residual potential of reservoirs after accumulation, the rules and mechanisms of fractures controlling oil and gas, and the types of favorable reservoirs and their characteristics of controlling oil and gas distribution. We further point out the main problems about the oil and gas exploration in the Tazhong area and put forward some relevant proposals. | Zhou Xinyuan Pang Xiongqi Li Qiming Pang Hong Xiang Caifu Jiang Zhenxne Li Sumei Liu Luofu | 2010 | Petroleum Science2010,7,2: | 12 |
| 4 | The in vitro effect of lipopolysaccharide on proliferation, inflammatory factors and antioxidant enzyme activity in bovine mammary epithelial cells显示文摘Lipopolysaccharide(LPS) was selected as a stimulus to investigate its effect on cell viability and oxidative stress in bovine mammary epithelial cells(BMEC) by detecting the cell relative growth rate(RGR),antioxidant indicators and inflammatory factors. This information was used to provide the theoretical basis for the establishment of a LPS-induced oxidative damage model. The experiment was divided into two parts. The first part used a two-factor experimental design to determine the appropriate incubation time of LPS by detecting the RGR. The third-passage BMEC were divided into 24 groups with six replicates in each group. The first factor was LPS concentration, which was 0(control), 0.1,1.0 and 10.0 μg/mL;the second factor was LPS incubation time(2,4, 6, 8,12 and 24 h). The optimum LPS incubation time was6 h according to the results of the first part of the experiment. The second part of the experiment was conducted using a single-factor experimental design, and the third-passage cells were divided into four groups with six replicates in each group. The cells were incubated with culture medium containing different concentrations of LPS(0 [control], 0.1, 1.0 and 10.0 μg/mL) for 6 h to select the appropriate concentration of LPS to measure the antioxidant indicators and inflammatory factors. The results showed the RGR was significantly reduced as the concentration of LPS and the incubation time increased;the interaction between concentration and incubation time was also significant. The cells treated with0.1 μg/mL of LPS for 6 h had no significant difference in the activities of glutathione peroxidase(GPx) and superoxide dismutase(SOD)(P > 0.05) compared with the cells in the control group. On the contrary,catalase(CAT) activity and malondialdehyde(MDA) content were markedly lower and higher, respectively, in the 0.1 μg/mL LPS-treated group for 6 h compared with the control group(P < 0.05). The activities of GPx, CAT and SOD in the BMEC treated with 1.0 or 10.0 μg/mL of LPS were significantly lower compared with the cells treated with 0.1 μg/mL of LPS and cells in the control group after 6 h of incubation; however, the opposite trend was detected in MDA content. There was no significant(P > 0.05)difference between the 10.0 and 1.0 μg/mL LPS-treated groups. Compared with the control group,interleukin-1, interleukin-6 and nitric oxide concentrations and the activity of inducible nitric oxide synthase in the 0.1 μg/mL LPS-treated group significantly increased(P < 0.0001), but the levels of tumour necrosis factor did not significantly change(P > 0.05). All of observed indicators were higher in the 1.0 and 10.0 μg/mL LPS-treated groups(P < 0.0001) compared with the other groups, but there was no significant(P> 0.05) difference between the 1.0 and 10.0 μg/mL LPS-treated groups. The results indicated that a concentration of 1.0 μg/mL of LPS and an incubation time of 6 h were the optimum conditions necessary to induce oxidative stress in the BMEC and establish a model for oxidative damage. | Huiyu Shi Yongmei Guo Yang Liu Binlin Shi Xiaoyu Guo Lu Jin Sumei Yan | 2016 | Animal Nutrition2016,,2: | 11 |
| 5 | Land Use Changes in Northeast China Driven by Human Activities and Climatic Variation显示文摘Human-induced land use/cover change (LUCC) forms an important component of global environmental change. Therefore, it is important to study land use/cover and its change at local, regional and global scales. In this paper we conducted the study of land use change in Northeast China, one of the most important agricultural zones of the nation. From 1986 to 2000, according to the study results obtained from Landsat images, widespread changes in land use/cover took place in the study area. Grassland, marsh, water body and woodland decreased by 9864, 3973, 1367 and 10,052km2, respectively. By comparison, paddy field, dry farmland, and built-up land expanded by 7339, 17193 and 700km2, respectively. Those changes bore an interactive relationship with the environment, especially climate change. On the one hand, climate warming created a potential environment for grassland and marsh to be changed to farmland as more crops could thrive in the warmer climate, and for dry farmland to paddy field. On the other hand, the changed surface cover modified the local climate. Those changes, in turn, have adversely influenced the local environment by accelerating land degradation. In terms of socio-economic driving forces, population augment, regional economic development, and national and provincial policies were confirmed as main driving factors for land use change. | WANG Zongming LIU Zhiming SONG Kaishan ZHANG Bai ZHANG Sumei LIU Dianwei REN Chunying YANG Fei | 2009 | Chinese Geographical Science2009,19,3: | 10 |
| 6 | Land Use/Cover Changes and Environmental Consequences in Songnen Plain,Northeast China显示文摘The Songnen Plain in Northeast China,one of the key national bases of agricultural production,went through remarkable land use/cover changes in recent years.This study aimed to explore the long-term land use/cover changes and the effects of these changes on the environment.The Landsat-based analysis showed that,during 1986-2000,cropland,built-up land and barren land had increased,among which cropland had the largest increase of 9,198km2 with an increase rate of 7.5%.Woodland,grassland,water body and swampland had decreased correspondingly,among which grassland had the most dramatic decrease of 6,127km2 with a decrease rate of 25.6%.The transition matrix results revealed that grassland,woodland and swampland were the three main land use types converted to cropland.Climate warming created the potential environment for the conversion of grassland and swampland into cropland.Land resources policy made by central and provincial governments of China affected the pattern and intensity of land use.Land use/cover changes accompanied by climatic variation brought out a series of environmental consequences,such as sand desertification of land,land salinization and alkalinization,grassland degradation,and more frequent floods.Under this circumstance,optimized land use structure and restoration measures are needed. | LIU Dianwei WANG Zongming SONG Kaishan ZHANG Bai HU Liangjun HUANG Ni ZHANG Sumei LUO Ling ZHANG Chunhua JIANG Guangjia | 2009 | Chinese Geographical Science2009,19,4: | 8 |
| 7 | Phosphorus speciation and distribution in surface sediments of the Yellow Sea and East China Sea and potential impacts on ecosystem显示文摘For better understanding the phosphorus(P) cycle and its impacts on one of the most important fishing grounds and pressures on the marine ecosystem in the Yellow Sea(YS) and East China Sea(ECS), it is essential to distinguish the contents of different P speciation in sediments and have the knowledge of its distribution and bioavailability. In this study, the modified SEDEX procedure was employed to quantify the different forms of P in sediments. The contents of phosphorus fractions in surface sediments were 0.20–0.89 μmol/g for exchangeable-P(Exch-P), 0.37–2.86 μmol/g for Fe-bound P(Fe-P), 0.61–3.07 μmol/g for authigenic Ca-P(ACa-P), 6.39–13.73μmol/g for detrital-P(DAP) and 0.54–10.06 μmol/g for organic P(OP). The distribution of Exch-P, Fe-P and OP seemed to be similar. The concentrations of Exch-P, Fe-P and OP were slightly higher in the Yellow Sea than that in the East China Sea, and low concentrations could be observed in the middle part of the ECS and southwest off Cheju Island. The distribution of ACa-P was different from those of Exch-P, Fe-P and OP. DAP was the major fraction of sedimentary P in the research region. The sum of Exch-P, Fe-P and OP may be thought to be potentially bioavailable P in the research region. The percentage of bioavailable P in TP ranged from 13% to 61%. Bioavailable P burial flux that appeared regional differences was affected by sedimentation rates, porosity and bioavailable P content, and the distribution of bioavailable P burial flux were almost the same as that of TP burial flux. | SONG Guodong LIU Sumei | 2015 | Acta Oceanologica Sinica2015,34,4: | 7 |
| 8 | Reduced inorganic sulfur in the sediments of the Yellow Sea and East China Sea显示文摘Cold diffusion methods are used to separate and quantify the three reduced inorganic sulfur species into acid volatile sulfide(AVS), pyrite–S and element sulfur(ES) in the sediments of the Yellow and East China Seas. The results show that up to 25.02 μmol/g of AVS, 113.1 μmol/g of pyrite–S and 44.4 μmol/g of ES are observed in the sediments of the Yellow Sea and East China Sea. Pyrite–S is the predominant sulfide mineral in the sediments, while the concentration of AVS is quite low at most stations in the study area. The amounts and reactivity of organic matter are the primary limited factor for the sulfide formation, while an iron limitation and a sulfate limitation are not observed in the sediments of the Yellow Sea and East China Sea. The irregular profiles of the three reduced inorganic sulfur species also reflected the comprehensive influence of sediment composition and sedimentation rates. | KANG Xuming LIU Sumei ZHANG Guoling | 2014 | Acta Oceanologica Sinica2014,33,9: | 6 |
| 9 | Regulation of flowering time in chrysanthemum by the R2R3 MYB transcription factor CmMYB2 is associated with changes in gibberellin metabolism显示文摘The switch from vegetative growth to reproductive growth is a key event in the development of a plant.Here,the product of the chrysanthemum gene CmMYB2,an R2R3 MYB transcription factor that is localized in the nucleus,was shown to be a component of the switching mechanism.Plants engineered to overexpress CmMYB2 flowered earlier than did wild-type plants,while those in which CmMYB2 was suppressed flowered later.In both the overexpression and RNAi knockdown plants,a number of genes encoding proteins involved in gibberellin synthesis or signaling,as well as in the response to photoperiod,were transcribed at a level that differed from that in the wild type.Both yeast two-hybrid and bimolecular fluorescence complementation assays revealed that CmMYB2 interacts with CmBBX24,a zinc-finger transcription factor known to regulate flowering by its influence on gibberellin synthesis. | Lu Zhu Yunxiao Guan Yanan Liu Zhaohe Zhang Muhammad Abuzar Jaffar Aiping Song Sumei Chen Jiafu Jiang Fadi Chen | 2020 | Horticulture Research2020,7,1: | 5 |
| 10 | The Distribution of Dissolved Aluminum in the Yellow and East China Seas显示文摘Water samples containing dissolved aluminum were collected from the Yellow and East China Seas in Octo- ber-November 2000. The average concentrations of dissolved Al in the Yellow Sea (YS) and East China Sea (ECS) were 0.042 and 0.056 μmolL-1, respectively. The concentration of dissolved aluminum decreased gradually across the continental shelf. The lower concentrations appeared in the YS cold water center and in the bottom layer at the shelf edge of the ECS, where they were 0.016 and 0.011 μmolL-1, respectively. The distribution of dissolved Al was controlled by physical mixing processes rather than biological up- take processes. The impact of different water masses along the PN transect was calculated based on the mass balance model. The results show that the impact of the Changjiang River was mainly concentrated on the coastal area and the top thermocline water on the ECS shelf, where the impact percentage decreased from 12.6% to 1.1% in the surface water, while the contribution of the Ku- roshio water was dominant on the ECS shelf in this survey, increasing from 77.6% to 97.8% along the PN transect from the Changjiang River Estuary to the Ryukyu Islands. It is concluded that aluminum can serve as a proper tracer for studying the impact of Changjiang terrestrial matter on the ECS shelf water. | LI Jianbing REN Jingling ZHANG Jing LIU Sumei | 2008 | Journal of Ocean University of China2008,7,1: | 5 |
| 11 | The biogeochemical behavior of dissolved aluminum in the southern Yellow Sea:Influence of the spring phytoplankton bloom显示文摘Many recent studies have investigated the nutrient-type profiles of dissolved aluminum(Al) in the ocean.Significant scavenging of dissolved Al can occur during phytoplankton blooms,but the mechanism remains unclear.The distribution of dissolved Al in the southern Yellow Sea(SYS) was investigated in winter and spring 2009.Following measurements at grid stations during the spring sampling cruise,two drifting anchor surveys of more than 100 h were conducted to trace the variation of dissolved Al concentration during the spring phytoplankton bloom(SPB).The concentration of dissolved Al in the SYS decreased from 40 nmol/L in February to 30 nmol/L in March and 10-20 nmol/L in April,while the concentration of Chl a increased from < 2 μg/L in March to > 4 μg/L in April.The concentration of dissolved Al in the SYS decreased significantly with the development of the phytoplankton bloom,which indicated biological scavenging of dissolved Al from water column.The proportion of dissolved Al scavenged from water column by different phytoplankton species differed at the two drifting stations,with greater removal efficiency demonstrated by diatoms than dinoflagellates.Phytoplankton samples collected from the Chl a maximum layer were washed with trace metal clean reagent(oxalate-EDTA-citrate,abbreviate as oxalate solution,Tovar-Sanchez et al.,2003) to enable the surface-scavenged(extracellular) and intracellular Al pools associated with phytoplankton to be differentiated.Thirty-nine to ninetysix percent of the total Al was found to be existed in the interior pools,which indicated that biological absorption was the important way to scavenge dissolved Al during phytoplankton blooms in the SYS. | LI FaMing REN JingLing YAN Li LIU SuMei LIU ChengGang ZHOU Feng ZHANG Jing | 2013 | Chinese Science Bulletin2013,58,2: | 4 |
| 12 | Cycling of phosphorus in the Jiaozhou Bay显示文摘Dissolved inorganic phosphorus (DIP ),dissolved organic phosphorus (DOP ),particulate inorganic phosphorus (P IP ) and particulate organic phosphorus (P OP ) in the Jiaozhou Bay (JZB) and its adjacent major rivers were analyzed during 2001–2003.DIP was the major form of dissolved phosphorus in JZB,representing 62%–83% of the total dissolved phosphorus (T DP ),and the P IP concentration generally exceeded the P OP concentration.The concentrations of phosphorus were higher in the north than in the south of the bay,which were related to the fluvial input and water exchange rate.The dissolved phosphorus concentrations were higher in the autumn and spring than in the summer,while the seasonal variation of particulate phosphorus showed opposite pattern.The distribution of phosphorus is mainly affected by the growth of phytoplankton,desorption/adsorption of DIP from and to particulates,and anthropogenic activities.A preliminary phosphorus budget was established.In JZB,riverine input and water exchange flow between JZB and the Huanghai (Yellow) Sea are the major sources of phosphorus,followed by industrial and domestic waste transport,and then atmospheric deposition.Phosphorus burial efficiency is estimated to be 91%.About 52.2 × 10 6 mol/a of phosphorus were assimilated by phytoplankton,of which about 68% was recycled in the water column and sediment. | Q1 Xiaohong LIU Sumei ZHANG Jing REN Jingling ZHANG Guiling | 2011 | Acta Oceanologica Sinica2011,30,2: | 4 |
| 13 | Seasonal variations of particulate silicon in the Changjiang (Yangtze River) Estuary and its adjacent area显示文摘Temporal and spatial distribution of biogenic (BSi) and lithogenic (LSi) silica were studied in the Changjiang (Yangtze River) Estuary and its adjacent area. The annual average BSi and LSi concentrations were (1.71 ± 1.79) μmol/L and (0.56 ± 1.41) mmol/L, respectively. Both BSi and LSi were high in the inshore areas, where they received terrigenous discharge from the Changjiang, and decreased towards the offshore region. BSi and LSi were most abundant at the near bottom layer due to the high sedimentation rates and resuspension of sediment. Diatom blooms occurred in summer with high Chl a concentration in the surface layer, which induced that BSi in the surface layer during summer was obviously higher than that in the surface layer of other seasons. LSi concentration was maximal in autumn and spring and minimum in summer, associated with the seasonal variation of SPM values. Drifting investigation and mesocosm experiments were conducted during dinoflagellate bloom, aiming to understand the effect of nutrients on BSi by changing the phytoplankton composition. The results show that the low dissolved inorganic phosphorus concentration and high molar ratio of N/P (dissolved inorganic nitrogen vs. dissolved inorganic phosphorus), were the important factors for decreasing diatom biomass in the study area, and it would subsequently decrease the BSi concentration in aquatic ecosystem. | CAO Lu LIU Sumei REN Jingling | 2013 | Acta Oceanologica Sinica2013,32,4: | 3 |
| 14 | Palm oil protectsα-linolenic acid from rumen biohydrogenation and muscle oxidation in cashmere goat kids显示文摘Background:In ruminants,dietary C18:3n-3 can be lost through biohydrogenation in the rumen;and C18:3n-3 that by-passes the rumen still can be lost through oxidation in muscle,theoretically reducing the deposition of C18:3n-3,the substrate for synthesis of poly-unsaturated fatty acids(n-3 LCPUFA)in muscle.In vitro studies have shown that rumen hydrogenation of C18:3n-3 is reduced by supplementation with palm oil(rich in cis-9 C18:1).In addition,in hepatocytes,studies with neonatal rats have shown that cis-9 C18:1 inhibits the oxidation of C18:3n-3.It therefore seems likely that palm oil could reduce both rumen biohydrogenation of C18:3n-3 and muscle oxidation of C18:3n-3.The present experiment tested whether the addition of palm oil to a linseed oil supplement for goat kids would prevent the losses of C18:3n-3 and thus improve the FA composition in two muscles,Longissimus dorsi and Biceps femoris.To investigate the processes involved,we studied the rumen bacterial communities and measured the mRNA expression of genes related to lipid metabolism in Longissimus dorsi.Sixty 4-month-old castrated male Albas white cashmere kids were randomly allocated among three dietary treatments.All three diets contained the same ingredients in the same proportions,but differed in their fat additives:palm oil(PMO),linseed oil(LSO)or mixed oil(MIX;2 parts linseed oil plus 1 part palm oil on a weight basis).Results:Compared with the LSO diet,the MIX diet decreased the relative abuandance of Pseudobutyrivibrio,a bacterial species that is positively related to the proportional loss rate of dietary C18:3n-3 and that has been reported to generate the ATP required for biohydrogenation(reflecting a decrease in the abundance of rumen bacteria that hydrogenate C18:3n-3 in MIX kids).In muscle,the MIX diet increased concentrations of C18:3n-3,C20:5n-3,C22:6n-3,and n-3 LCPUFA,and thus decreased the n-6/n-3 ratio;decreased the mRNA expression of CPT1β(a gene associated with fatty acid oxidation)and increased the mRNA expression of FADS1 and FADS2(genes associated with n-3 LCPUFA synthesis),compared with the LSO diet.Interestingly,compared to Longissimus dorsi,Biceps femoris had greater concentrations of PUFA,greater ratios of unsaturated fatty acids/saturated fatty acids(U/S),and poly-unsaturated fatty acids/saturated fatty acids(P/S),but a lesser concentration of saturated fatty acids(SFA).Conclusions:In cashmere goat kids,a combination of linseed and palm oils in the diet increases the muscle concentration of n-3 LCPUFA,apparently by decreasing the relative abundance of rumen bacteria that are positively related to the proportional loss rate of dietary C18:3n-3,by inhibiting mRNA expression of genes related to C18:3n-3 oxidation in muscle,and by up-regulating mRNA expression of genes related to n-3 LCPUFA synthesis in muscle,especially in Longissimus dorsi. | Xue Wang Graeme B.Martin Qi Wen Shulin Liu Yinhao Li Binlin Shi Xiaoyu Guo Yanli Zhao Yangdong Guo Sumei Yan | 2021 | Journal of Animal Science and Biotechnology2021,12,2: | 3 |
| 15 | Origin of Oils in“Subtle pools”in the Dongying Depression,Bohai Bay Basin, China显示文摘摘要:微妙的陷井或油水池在 Dongying 消沉成为了一出重要探索戏, Bohai 海湾盆,华东。尽管有在探索的最近的成功,微妙的陷井的形成机制仍然不好被理解。在 Dongying 消沉的微妙的油水池的多数与主要具有在 mudstones 包含的透镜的盆地板 turbidite 沙的微妙的陷井在 Paleogene Shahejie 形成的 Es3 成员的中间的间隔被开发。在微妙的陷井的油以前被认为从一样的形成(Es3 ) 的包围来源岩石直接移植了。从消沉的 41 油和 41 件岩石样品的详细 geochemical 调查现在显示从微妙的陷井的油不能与包围 Es3 来源岩石被相关很好,它被高 Pr/Ph 描绘(> 1 ) ,低 Gammacerane/C30hopane,代表淡水湖的背景。在对比油特征低 Pr/Ph (< 1 ) 并且相对高的 Gammacerane 内容,与内在的 Es4 来源一起显示出一种基因亲密关系摇,它也有一样的质量,显示一个略有盐味的湖的背景。在 Es3 微妙的陷井的油可能从支配的上面的 Es4 来源岩石与贡献从混合来源被导出。要调用解释从 Es4 来源岩石分享油的因此异乎寻常的油迁居和累积机制需要,它可能通过 Es3 来源的厚低间隔来了摇没有明显结构或 stratigraphic 小径。我们建议微妙的油迁居小径可能这里起一个重要作用。这发现可以在 Dongying 消沉为未来探索和留下的资源评估有重要含意。 | LI Sumei JIANG Zhengxue LIU Keyu QIU Guiqiang GAO Yongjin | 2008 | Acta Geologica Sinica(English Edition)2008,82,1: | 3 |
| 16 | Distribution of Dissolved Inorganic Arsenic and Its Seasonal Variations in the Coastal Area of the East China Sea显示文摘Water samples were collected in the coastal area of the Changjiang Estuary on four cruises from August 2002 to May 2003. The seasonal variations of dissolved inorganic arsenic (DIAs) distributions were analyzed. The results showed that the distributions of DIAs were mainly influenced by the terrestrial input and the intrusion of the Kuroshio Subsurface Water (KSSW). The concentration of the total dissolved inorganic arsenic (TDIAs) decreased consecutively from winter to summer, while it increased in autumn. The distributions of TDIAs showed some relationships with salinity and suspended particulate matter (SPM). The relationships between DIAs speciation (including arsenite [As(Ⅲ)] and arsenate [As(Ⅴ)]), biological activity and the availabilities of the phosphate were investigated in the study area for the cruise August 2002. The ratio of As (Ⅲ)/TDIAs increased with the decrease of phosphate concentrations. In the bottom water, the As(Ⅲ)/TDIAs ratio decreased with the increasing of N/P. The concentration of TDIAs decreased 28.7% approximately after the occurrence of harmful algal blooms (HAB) because of the uptake of arsenate by algae. Further study is needed about the arsenic source/sink relationships in their vertical or horizontal profiles and the uptake mechanism during the occurrence of harmful algal blooms. | CHENG Yan REN Jingling LI Dandan LIU Sumei ZHANG Jing | 2006 | Journal of Ocean University of China2006,5,3: | 3 |
| 17 | Historic changes in flux of matter and nutrient budgets in the Bohai Sea显示文摘Over the past four periods (1959-1960,1982-1983,1992-1993,and 1998-1999),the ecosystem of the Bohai Sea changed due to both a significant decrease of river water discharge from the Huanghe River and a reduction of precipitation. The shifts in nutrient chemistry could result in changes in the phytoplankton composition with an increased potential for non-diatom algal blooms. Simple box model was used to estimate the water-mass balance and nutrient budgets for the Bohai Sea. Water budgets indicate that the residual flow changed from out of the Bohai Sea before 1993,but became inflow to the Bohai Sea after then. The nutrient budgets developed indicate that the Bohai Sea was a sink for nutrients except for phosphate in 1959-1960 and 1982-1983 and for silicate in 1982-1983. Net water flow transports nutrients out of the Bohai Sea in 1959-1960,1982-1983 and 1992-1993,but into the sea in 1998-1999 due to climate changes,such as precipitation and subsequent freshwater discharge. The residual fluxes of nutrients are minor relative to atmospheric deposition and riverine inputs. Conversions of phosphate values to carbon by stoichiometric ratios were used to predict that the system was net heterotrophic before 1982-1983 and net autotrophic after then. Nutrient budgets can explain the change of nutrient concentrations in the Bohai Sea except nitrates,which should include the surface runoff. | LIU Sumei ZHANG Jing GAO Huiwang LIU Zhe | 2008 | Acta Oceanologica Sinica2008,27,5: | 3 |
| 18 | An examination of groundwater discharge and the associated nutrient fluxes into the estuaries of eastern Hainan Island, China using 226 Ra显示文摘 | Ni Su Jinzhou Du Willard S. Moore Sumei Liu Jing Zhang | 2011 | Science of the Total Environment2011,,19: | 2 |
| 19 | Particulate n-alkanes and fatty acids in the Changjiang river system显示文摘微粒样品在一个洪水时期期间从 Changjiang 河系是镇定的,在 1997 年 5 月,并且与粒子联系的停靠港,稳定同位素和类脂化合物被检验。结果显示出减少(0。84% ~ 1.88%) 到河口的从上面的活动范围的器官的碳内容。器官的碳在 -24 的范围的微粒的δ ~(13 ) C 价值。9 X10~(-3) 到 -26。6 x 10 ~( 接近了大陆人 C_3vegetation 的同位素的签名的 -3), 。全部的微粒 n 链烷集中从 1.4 ~ 10 变化了。1 μ g /dm~3,或 from23.7 到全部的浮游物的 107 μ g /g。丰满的酸在所有样品是在场的,从 1.4to 5.4 μ g /dm~3,与浸透并且在碳数字的不饱和的直链、分叉的混合物从 C_(12 )到 C_(30 ) 。δ ~(13 ) C 和到氮内容的碳内容的比率在粒子之中显示陆上的输入(土壤有机物) 的优势。简历标记途径被用来在微粒样品识别源自陆地、本土的部分的相对部分。丰满的酸的分发在大多数粒子样品作为 triking 建议 phytoplanktonic 和微生物引起的信号。陆上的链烷被用来沿着主流估计陆上的输入的贡献。 | WU Ying ZHANG Jing LIU Sumei ZHANG Zaifeng CHEN Hongtao XIONG Hui | 2007 | Acta Oceanologica Sinica2007,26,2: | 2 |
| 20 | Quantitative prediction of mixed-source crude oils and its significance for understanding oil accumulation in subtle pools in the Dongying Depression,Bohai Bay Basin显示文摘常规 geochemical 途径在原油从 Paleogene Shahejie 形成的 Es3 和 Es4 成员导出的混合来源的比例的量的预言被利用。混合来源油在 Niuzhuang 在 Es3 成员(Es3 M ) 的中间的间隔被积累下垂,它是微妙的陷井在主要在 Dongying 消沉开发的 mudstones 以内的透镜的盆地板 turbidite 沙主要的 sags 之一, Bohai 海湾盆。结果证明大约 1892% 混合来源油与 5560% 的一般水准从 Es4 来源岩石被导出。与深差错联系的水库看起来有基因亲密关系上油的更多 Es4。导出 Es4 的油的一个高比例在 Es3 M 微妙的 lithological 发现在 Niuzhuang 的陷井下垂有长迁居距离。这建议包围来源岩石可能未必为微妙的陷井控制烃供应。微妙的迁居小径可以在垂直的油迁居起一个重要作用。在在从包围来源岩石的短迁居距离以内的这些透镜的 turbidite 沙岩陷井的烃累积的传统的概念是没由这研究支持。现在的结果与我们在在 Niuzhuang 的南方斜坡的 Bamianhe 油矿的不成熟的油下垂的以前的调查结果也一致实际上是主要在 Niuzhuang 的 depocenter 从 Es4 采购的混合来源油下垂,并且在 Dongying 消沉的 Es4 成员的石油潜力应该因此被重新估计。 | Li Sumei Liu Keyu Pang Xiongqi Li Maowen Jiang Zhenxue Qiu Guiqiang Gao Yongjin | 2008 | Petroleum Science2008,5,3: | 2 |