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Low Pathogenic Avian Influenza A(H5N7) Virus Isolated from a Domestic Duck in dongting Lake Wetland of China,2016

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Virologica Sinica 2019年第1期34卷 97-101页

作者： Liping Ma Haizhou Liu Runkun Wang Tao Jin Di Liu George Fu Gao Quanjiao Chen CAS Key Laboratory of Special Pathogens and Biosafety CAS Center for Influenza Research and Early WarningWuhan Institute of VirologyChinese Academy of Sciences University of Chinese Academy of Sciences China National Genebank-Shenzhen BGI-Shenzhen Savaid Medical School University of Chinese Academy of Sciences CAS Key Laboratory of Pathogenic Microbiology and Immunology Institute of MicrobiologyChinese Academy of Sciences

Dear Editor,The avian influenza virus (AIV) H5N7 was first isolated from wild birds in North America in 2001 (Spackman et al.2007), and information on only 25 strains of this virus has been deposited in the Global Initiative on Sharing All Influenza Data (GISAID-http://***/epi3/frontend#493de3) database until October 30, 2018. Twenty viruses were identified in the United States from 2001 to2017.

关键词： HPAIV Virus Isolated from a Domestic Duck in dongting Lake Wetland of China,2016 Low Pathogenic Avian Influenza A

Ichthyoplankton recruitment from mainstream of the Changjiang River into the dongting Lake, the second largest freshwater lake in China

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Journal of Oceanology and Limnology 2019年第3期37卷 1090-1101页

作者： MA Qin LI Mingzheng QIN Xiangchao LIU Huanzhang CAO Wenxuan Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences Institute of HydrobiologyChinese Academy of SciencesWuhan 430072China University of Chinese Academy of Sciences Beijing 100049China Yellow River Basin Water Environment Monitoring Center Zhengzhou 450004China

Floodplains are important and distinctive ecosystems around the world,and the recruitment of ichthyoplankton from river to floodplain lakes is crucial to maintain this unique ecosystem.However,this process has not been well documented.In this study,ichthyoplankton were sampled to investigate the details of ichthyoplankton recruitment from the Changjiang(Yangtze)River to the dongting Lake via a floodway channel,the Songzi River,from May to July in 2013 and 2014.During the study period,41 species of eggs and larvae were sampled.Among the samples,16 were river-lake migratory species(RL),representing 23.5%of the species in the dongting Lake.In 2013,an estimated 130 million eggs and 3180 million larvae drifted through the sampling section,and in 2014,an estimated 1 060 million eggs and 1040 million larvae drifted through the sampling section.The amount of eggs and larvae of RL reached 3 210 million in 2013 and 1 850 million in 2014,respectively.These results demonstrated the importance of ichthyoplankton recruitment from the river to the lake,as species diversity will decrease sharply without this recruitment.Canonical correspondence analysis(CCA)showed that water temperature and water flow are the two most important factors influencing the spawning activities of fish.To maintain the high fish diversity in the Changjiang floodplain,we suggest to irrigate the channel to increase water discharge and increase the transport of ichthyoplankton from the Changjiang mainstream into the dongting Lake.

关键词： ichthyoplankton recruitment Changjiang floodplain dongting Lake

Potential Impacts of Proposed Chenglingji Hydraulic Project on Wetlands in dongting Lake

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湿地科学 2018年第3期16卷 377-392页

作者： LU Cai SHI Linlu GUAN Lei ZHOU Yan JING Lei LEI Guangchun School of Nature Conservation Beijing Forestry University Southern Modern Forestry Collaborative Innovation Center College of Biology and the Environment Nanjing Forestry University College of Forestry Central South University of Forestry and Technology

Water level fluctuation of is an important ecological character of lakes in monsoon climate zone.It is the key driver to seasonal change of the wetlands and associated habitats,which provide vital inhabiting conditions for different species in summer and winter,or,wet season and dry season.Due the hydrologic regime changes in the recent years after the operation of Three Gorges Dam,in 2012,the government of Hunan province proposed Chenglingji Hydraulic Project,aiming at water level control in dry season at Chenglingji,where the outlet of dongting Lake located.Through different operations on water retreat process,five scenarios on the water level control from 21 m to 24 m were set in the plan.The potential ecological impacts of the project are under enormous public concern.To analyze potential impacts from different scenarios of water level control on the wetlands,this paper studied the topography of dongting Lake bed and wetlands in dry season,by using Digital Elevation Model（DEM）and 15 images from HJ satellite and 1 image from Landsat TM.The wetlands at water levels of 19 m to 27 m were analyzed.The study revealed that there were 4 terrain steps on dongting Lake bed from the West dongting Lake to East dongting Lake.Water level control at Chenglingji would increase area of open water in East dongting Lake and Hengling Lake areas,while its effect on South dongting Lake and West dongting Lake areas due to higher terrain was weaker.Particularly,the area percentages of South dongting Lake area did not change with water level fluctuation,due to its 2 elevation steps.The area percentages of various types of the wetlands in dongting Lake area during the processes of water level rising and retreating were quite different,even in the relatively close water level interval.The retreating area of open water in autumn was larger than that during the spring flooding.The 23 m was the key water level,a turning point of the area change of the wetlands in dongting Lake area.Areas of open water,mudflat,meadows and their percentages

关键词： dongting Lake Chenglingji Hydraulic Project fluctuation of water level impact wetlands

A Stable Isotope Approach to Determine Herbivorous Diets of Wintering Geese at dongting Lake,China

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湿地科学 2016年第3期14卷 337-346页

作者： GUAN Lei MAZUMDER Debashish YANG Xiaoxue WEN Li WANG Yuyu LEI Jialin LEI Guangchun School of Nature Conservation Beifing Forestry UniversityBeifing 100083P.R.China Australian Nuclear Science and Technology Organisation Locked Bag 2001Kirrawee D CNSW 2232Australia Science Division Office of Environment and HeritageDepartment of Premier and CabinetSydneyNew South WalesAustralia

The East dongting Lake National Nature Reserve in China is listed as a Ramsar Wetlands due to its global significance for migratory waterbird conservation, especially for the geese. For example, more than 90% of East Asian population of the vulnerable Lesser White-fronted Goose(Anser erythropus), and large numbers of Bean Goose(Anser fabilis) and Greater White-fronted Goose(Anser albifrons) over winter here every year from October to the next March. However, the habitats and food quality of the wintering geese have been threatened by hydrological alternation due to the operation of the Three Gorges Dam. Understanding the diets of these geese is fundamental for their conservation. We used the stable isotopic ratios of the body tissues of three predominant goose species(i.e. Ans?er erythropus, Anser fabilis and Anser albifrons) and their potential diet items(6 grass species), and applied smooth transition autoregressive(SIAR) mixing models to quantify the contribution of different food items to their diets. The results showed that the δ13C values of the blood samples were significantly different from those of feather, and the difference was consistent for the three kinds of geese. These results indicated that clear dietary shifts from their breeding place at the Arctic to the wintering place at dongting Lake. The δ13C values of the blood samples of the geese showed there were no significant difference(ANOVA, p=0.265) suggesting that they share the same food sources at dongting Lake. Moreover, the multiple-source mixing models(i.e. SIAR model) indicated that no single plant had a contribution greater than 35% to the diet of geese at 0.95 confident levels(0.50 and 0.95 credibility intervals of the posterior distributions range from 0.24-0.25 and 0.32-0.34, respectively). The results indicated that the geese had no preference for a particular plant. The findings suggested that the features at patch level(e.g. vegetation greenness and development stage) but not plant species might be the decisive factor in the habitat

关键词： stable isotope food resources geese dongting Lake

Yield of Agricultural Eco-economic System in dongting Rim

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Asian Agricultural Research 2013年第10期5卷 61-67页

作者： Maozhang HOU Yulin ZHU School of Economics Central South University of Forestry and Technology Economy of Agriculture and Forestry Research Center Central South University of Forestry and Technology Hunan Provincial Engineering Laboratory of Risk Management and Control Techniques for Innovative Enterprise

To analyze the efficiency of the agro-ecosystem of dongting Rim in Hunan Province,this paper adopted the emergy theory to study the agricultural output of this region during 2001 to 2010.The results showed that the value of regional agricultural emergy output increased by44.68%to(6.50 E)sej,but lower than the growth of non-agricultural industry output.Compared with 2001,the emergy output of planting industry was(4.10E)sej in 2010 which occupied 63.09%of the total agricultural emergy output and got an increase of 2.93 percentage points,while the emergy output of stock farming got a decrease of 2.87 percentage points.The growth of fishery emergy output was not in conformity with the characteristics of dongting Rim in Hunan.From the contrast between emergy output and economic output,we could find that the economic return ratio of planting industry and fishery industry were lower than those of forestry industry and stock farming industry,which indicated that it is necessary to improve the economic benefits of planting industry and fishery industry which were the traditional industries with advantages of the dongting Rim in Hunan.

关键词： dongting Rim Agricultural eco-economic system Emer

AN ANALYSIS OF THE GEOTECTONICCONDITIONS OF FORMATION OF NONMETALLIC ORES ON THE WESTERN MARGIN OF THE dongting DIWA

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Geotectonica et Metallogenia 1999年第2期23卷 134-142页

作者： Mu Shichun and Wang Ling(Changsha Institute of Geotectonics, Academia Sinica, Changsha 410013, China)

There is a close relationship between occurrence of nonmetallic minerals and tectonic evolution of geosyncline, platform and diwa (geodepression) on the western margin of the dongting diwa. Some results that (1) diwa tectonics is berfeficial for formation and preservation of nonmetallic minerals and (2) volcano-sedimentary altered ore deposits, saline deposits and organo-sedimentary ore deposits can be often found in diwa basins are gained.

关键词： Nonmetallic ores geotectonic condition of formation of ore diwa western margin of dongting diwa

FLOOD SIMULATION IN dongting LAKE DRAINAGE AREA AND ITS FLOOD CONTROL

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Geotectonica et Metallogenia 1998年第Z1期22卷 90-96页

作者： Huang Huaiyong Du Guoquan Fan Weimin and Chen Guanghao(Changsha Institute of Geotectonics, Academia Sinica, Changsha 410013)

On the basis of water-balance equation in dongting Lake and Xiang Zi Yuan-Li River drainage areas, a possib1e flood height relating to the rainfall precipitation in these areas has been inferred. According to the flood simulation, some synthetic maintenance strategies to prevent future catastrophic f1oods in dongting Lake drainage area have been also presented.

关键词： dongting Lake drainage area flood simulation synthetic maintenance

Temporal Distribution of Fish Community Structure in dongting Lake Estuary

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Agricultural Sciences 2019年第3期10卷 294-301页

作者： Xiping Yuan Xin Yang Hongzi Ge Hong Li Daqing Deng Hunan Fisheries Institute Changsha China Xinshao County Animal Husbandry and Fisheries Bureau Shaoyang China

The dongting Lake Estuary is migration pathways for some river-lake migratory and semi-migratory fishes. In the present study, an annual survey of fish was conducted from January to November 2018 covering a total of 6 sites in dongting Lake Estuary. A total of 57 freshwater species and subspecies belonging to 5 orders and 10 families were recorded. The catches at the dongting Lake Estuary were mainly composed of Lake settled fish. The biomass of Cyprinus (Cyprinus) carpio Linnaeus was the highest, accounting for 25.53% of the total catches, followed by Hypophthalmichthys molitrixs, Culter alburnus Basilewsky and Ctenopharyngodon idellus, accounting for 10.41%, 8.99% and 7.10% of the total catches, respectively. The four major domestic carps accounted for 26.13% of the total catch. The range of richness of species varied between 40 and 51 species. The trend was fewer species in spring, with the arrival of summer and autumn gradually increasing, peaking at the turn of summer and autumn, and then gradually decreasing with the arrival of winter, to the lowest in spring. The Shannon, Simpson, Pielou and Margalef indices showed the consistent trends with richness of species.

关键词： Biodiversity dongting Lake Estuary Freshwater Fish

Study on the Water Quality and Protection Measures of dongting Lake

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Asian Agricultural Research 2015年第1期7卷 57-60页

作者： Zhangquan ZENG Canming ZHANG Xiquan LI Nan Yang Yandong NIU Zijian WU Hunan Academy of Forestry The dongting Lake Wetland Ecosystem Observation and Research Station State Administration of Forestry

From nitrogen and phosphorus,chemical oxygen demand,phytoplankton,and eutrophication,this article analyzes the current situation of water quality in the dongting Lake area,and discusses the factors influencing the water quality of dongting Lake. Based on the actual production,geographic characteristics and outstanding problem of grim water pollution situation in the dongting Lake area,some specific proposed measures are put forward in order to provide the basis and reference for the future pollution control in the dongting Lake area,such as strengthening the industrial pollution control,developing ecological agriculture,and enhancing ecological restoration and water quality early warning.

关键词： dongting Lake Water pollution Current situation Pr