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Journal of Environmental Sciences 2019年第2期31卷 319-328页

作者： Yaoyao Zhu Xin Jin Wenzhong Tang Xin Meng Baoqing Shan State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of Sciences University of Chinese Academy of Sciences

The condition of baiyangdian Lake(BYDL) will improve as the Xiongan New Area evolves and fulfills its role of easing overcrowding and supporting economic growth. Water and sediment samples from BYDL were analyzed to provide information on nitrogen(N) contamination in BYDL. The mean ammonium N(NH_4^+-N), nitrate N, and total N concentrations in the water samples were 0.36, 0.12, and 2.22 mg/L, respectively, and the ranges were 0.003–8.38, 0.06–0.30,and 1.25–10.34 mg/L, respectively. The N concentrations in water gradually increased from the north to the south of BYDL. Sediment at 90% of the sampling sites was in or above the moderately contaminated class(1000–2000 mg/kg) defined in US Environmental Protection Agency total N pollution standards. Positive NH_4^+-N fluxes were found for 28 of the 34 sediment core samples, so the potential for NH_4^+-N being released from sediment was relatively high. The NH_4^+-N fluxes were 5.35–48.76 mg/m^2/day, and the mean and maximum fluxes were 8.71 and 48.76 mg/m^2/day, respectively. Benthic organisms will be affected more by NH_4^+-N and NH_3·H_2O in the surface sediment pore water(mean concentrations 4.93 and 0.13 mg/L, respectively) than by the other forms of N.

关键词： Nitrogen Ammonia nitrogen baiyangdian Lake Flux Sediment

Hydrochemical characteristics and geochemistry evolution of groundwater in the plain area of the Lake baiyangdian watershed,North China Plain

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Journal of Groundwater Science and Engineering 2018年第3期6卷 220-233页

作者： ZHANG Yu-qin WANG Guang-wei WANG Shi-qin YUAN Rui-qiang TANG Chang-yuan SONG Xian-fang Key Laboratory of Agricultural Water Resources Hebei Laboratory of Agricultural Water-SavingCenter for Agricultural Resources ResearchInstitute of Genetics and Developmental BiologyChinese Academy of SciencesShijiazhuang 050021China University of Chinese Academy of Sciences Beijing 100049China Faculty of Horticulture Chiba UniversityMatsudo-city271-8510Japan School of Environmental Sciences&Resources Shanxi UniversityTaiyuan 030006China Key Laboratory of Water Cycle and Related Land Surface Processes Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China

Water cycle and water quality in the Lake baiyangdian watershed of the North China Plain have undergone great changes due to over-pumping of groundwater and wastewater discharge.In this paper,hydrogeochemical data was collected to analyze the hydrochemical characteristics and geochemistry evolution of groundwater.The study area was divided into two typical parts.One was in the upstream plain area,where over-pumping had resulted in significant decline of groundwater level;the other one was located in the downstream area near the Fu River and Lake baiyangdian(Lake BYD region).In addition to the natural weathering of minerals,excessive fertilizer was also a main factor of higher ion concentration in groundwater.According to studies,due to good permeability,these regions were easy to be polluted even with deep groundwater depth.However,upstream shallow groundwater and surface water,including lake water,domestic along with industrial wastewater were all sources of present shallow groundwater in the Lake BYD region.Results indicated that anthropogenic activities rather than minerals much matter to the groundwater in these regions.Particularly,wastewater largely decided the groundwater quality,which suggested that the management and restoration of surface water quality was crucial to groundwater protection.

关键词： Hydrochemical characteristics Geochemical processes Groundwater The Lake baiyangdian Watershed North China Plain

Assessment of the Spatial and Temporal Water Eutrophication for Lake baiyangdian Based on Integrated Fuzzy Method

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Journal of Environmental Protection 2013年第1期4卷 120-125页

作者： Shuxuan Liang Hong Wu Hongbo Li Yihong Wu College of Chemistry and Environmental Science Hebei University Baoding China Hebei Provincial Academy of Environmental Science Shijiazhuan China

Water quality evaluation entails both randomness and fuzziness. Considering that water eutrophication evaluation involves many indices, different classifications and interval values, fuzzy variable sets theory was developed to Lake baiyangdian as a study case. Taking reference to eutrophication standard of Chinese lakes and local characteristic of Lake baiyangdian, eutrophication degree of lake was divided into 8 levels. Total phosphorus, total nitrogen, and CODMn were selected as evaluation indices in this research. Based on the measured data, index feature value matrix of sample was built. Index weights were determined by means of pure threshold value method. Relative membership degree of each index to each classification was calculated with relative difference function model. Then the stability of feature value of classification corresponding was received by the comprehensive calculation with the relative membership degree and index weights. The results show that the proposed models are effective tools for generating a set of realistic and flexible optimal solutions for complicated water quality evaluation issues. It concluded that the model was reasonable and practical.

关键词： Eutrophication Evaluation Fuzzy Method Spatial Variation Temporal Variation Lake baiyangdian

Evaluating the biotoxicity of surface water in a grassy lake in North China

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Journal of Environmental Sciences 2021年第4期33卷 316-325页

作者： Xin Meng Wenqiang Zhang Baoqing Shan State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of the Chinese Academy of Science Beijing 100049China

The biological toxicity of aquatic ecosystems should be considered when assessing the effects of toxicity on the water environment.The aim of this study was to identify the main pollutants in the baiyangdian(BYD)and the factors that contribute to biological toxicity.We determined various physical and chemical indicators in the surface water of the BYD,including nutrients and heavy metals,and the biological toxicity.We also explored the sources of the main pollutants and how the pollutants contributed to toxicity in the lake,using correlation analysis and an index of the biological toxicity.The results showed that total nitrogen(TN),ammoniacal nitrogen(NH4^(+)-N),chromium(Cr),and zinc(Zn)were the main pollutants in the BYD surface water.The average concentration of Cr was 2.3 times greater than the Class V threshold,and the concentrations at about 65%of the sampling points,mainly those in the southern part of the BYD,exceeded the threshold standard.The average concentration of Zn was 1.25 times higher than the Class V threshold,with the concentrations of about 35%of the samples greater than the threshold concentration.The integrated toxicity of the surface water to luminescent bacteria ranged from 0.51%to 58%,and averaged 24.07%,which was within the range of moderate toxicity.The inhibition rates were high near Diantou(59%)and Duan(51.6%).The pollutant levels in the BYD tend to be related to the population density,with pollution mainly caused by sewage and domestic garbage,with little influence from local industries.Cr and TN were strongly correlated,but the biological toxicity was not correlated with any of the individual environmental indicators,which suggests that the toxicity in the surface water of the BYD reflected the combined effects of the environmental factors,rather than a single factor.The information from this study,about the main pollutants and the relationships between the physical and chemical properties of the surface water in the BYD,can be used to support plans for restoring the BYD.

关键词： baiyangdian Typical pollutants Biotoxicity Risk assessment

Strategic Explanation and Planning of Xiong＇ an New Area

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学术界 2017年第6期 322-328页

baiyangdian Technology Town initiated in 2015 is the pre -form of Xiong＇ an New Ar-ea which is both a national new area and a national special economic zone. Xiong＇ an New Areacan be regarded as an exploration of alternative mechanism of metropolitan space which fits the ruleof urban development. Xiong＇ an New Area is a national new area of the highest rank approved inthe process of National New Urbanization Plan. Therefore, the strategic positioning is supposed tobe fit in the new urbanization strategy and to have major leading and prototype functions in solvingthe problems of old style urbanization. Xiong＇ an New Area is to undertake great preas in preventingthe over gathering, which is a major task and principle of the planning.

关键词： baiyangdian Technology Town National New Urbanization Prototype Area Strategicresearch

基于RS和GIS的白洋淀“引岳济淀”景观格局分析(英文)

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Journal of Landscape Research 2010年第9期2卷 60-64页

作者：张晶香杨胜天王玉娟朗杨云南曲靖师范学院云贵高原生物多样性研究所云南曲靖655011 北京师范大学地理学与遥感科学学院北京100875

By using TM remote sensing images of baiyangdian Wetland in 1989,1999,2003 and 2004,taking the water area between Anxin County and Cangzhou where most of baiyangdian Wetland water body lies for landscape classification,changes in landscape pattern of baiyangdian before and after the water supplement were analyzed with landscape indexes calculated by Fragstats3.3. The results showed that after the water supplement,from the perspective of landscape cell index,fractal dimension of major ecosystems in baiyangdian decreased to some extent;from the perspective of landscape diversity index,diversity index of the study region also decreased,which demonstrated that ecosystem diversity in this region reduced,land cover grew to simplification;and the decreasing evenness degree of the study region also showed the uneven development of its ecosystems. That is to say,water supplement has brought favorable ecological changes to the eco-environment of baiyangdian,which has further optimized the health condition of ecosystems in this region.

关键词： baiyangdian Wetland Water supplement for baiyangdian from Yuecheng Reservoir Landscape pattern Landscape index