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Statistics and countermeasures of non point source pollution in plain river network of Taihu Basin

Qin Zhong,Geng Qingwei,Zang Guimin

Strategic Study of CAE 2010, Volume 12, Issue 6,   Pages 113-116

Abstract: sources pollution, this essay gives some suggestion on the control of non-point sources pollution in plainriver network of Taihu Basin.

Keywords： Taihu Basin     plain river network     non-point sources pollution     contro    

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Theory and Practice of Hydrodynamic Reconstruction in Plain River Networks Article

Hongwu Tang, Saiyu Yuan, Hao Cao

Engineering 2023, Volume 24, Issue 5,   Pages 202-212 doi: 10.1016/j.eng.2022.01.015

Abstract: network hydrodynamics is identified as the common cause of these water-related problems.From this, a theory for the hydrodynamic reconstruction of plain river networks is proposed.technical system for multiscale hydrodynamic reconstruction and multi-objective hydraulic regulation in plainThe principles of the integrated management of water problems in river network areas are put forward.network in the main urban area of Yangzhou City.

Keywords： Plain river network     Water security problems     Hydrodynamic reconstruction     Multi-objective     Integrated    

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On the environment evolvement of Jingjiang River Valley and the forming processes of Twain-Hu Plain Basinin the middle reaches of the Yangtze River

Hu Dongsheng,Zhang Huajing,Xu Bing,Gou Qingmei,Yu Xuefeng,Tian Xinhong,Liu Weiguo,An Zhisheng,Zhang Guowei

Strategic Study of CAE 2010, Volume 12, Issue 1,   Pages 36-42

Abstract: interpretation technique of earth satellite, the environment evolrement and the forming process of Jingjiang Riverin the middle reaches of Yangtze River and the basin of Twain-Hu (Jianghan-Dongting) Plain Baisn werewater system ,to surface processes the region environment and the basin of Twain-Hu(Jianghan -Dongting) Plain, the discuss into the earth dynamic mechanism for the mountain -basin -plain -river -lake -rivulet'

Keywords： Jingjiang River Valley of middle reaches of Yangtze River     Twain -Hu (Jianghan - Dongting) Plain     processof environment evolvement     mountain -basin -plain -river -lake -rivulet’s coupling system    

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response of bacterial community to the changes of nutrients and pollutants in sediments from an urban rivernetwork

Fang Zhang, Hao Zhang, Ying Yuan, Dun Liu, Chenyu Zhu, Di Zheng, Guanghe Li, Yuquan Wei, Dan Sun

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 2, doi: 10.1007/s11783-019-1207-3

Abstract: • Bacterial community varied spatially in sediments from the urban river network. • Key environmentalHowever, how the diversity and structure of bacterial communities in sediments from an urban river networknetwork in the lower Yangtze River Delta by Illumina MiSeq sequencing.network.network.

Keywords： Sediment     Urban river network     Bacterial community     Network analysis     Indicator species    

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Distribution of phytoplankton community and its influence factors in an urban river network, East China

Ling Sun, Hui Wang, Yuanqing Kan, Shiliang Wang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 6, doi: 10.1007/s11783-018-1062-7

Abstract:

Effects of urban river conditions on phytoplankton community wereitemcontent>

The diatoms and euglenoids dominated in an urban beheaded river

Keywords： Phytoplankton composition     Spatiotemporal distribution     Functional groups     Nitrate nitrogen     Winter bloom    

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GROUNDWATER DEPLETION IN THE NORTH CHINA PLAIN: THE AGROHYDROLOGICAL PERSPECTIVE

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 594-598 doi: 10.15302/J-FASE -2021407

Abstract:

Agricultural production in the North China Plain with rainfall of less than 500 mm·yr&

Keywords： crop yield / groundwater depletion / sustainability    

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An enhanced damage plasticity model for predicting the cyclic behavior of plain concrete under multiaxial

Mohammad Reza AZADI KAKAVAND, Ertugrul TACIROGLU

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1531-1544 doi: 10.1007/s11709-020-0675-7

Abstract: Some of the current concrete damage plasticity models in the literature employ a single damage variable for both the tension and compression regimes, while a few more advanced models employ two damage variables. Models with a single variable have an inherent difficulty in accounting for the damage accrued due to tensile and compressive actions in appropriately different manners, and their mutual dependencies. In the current models that adopt two damage variables, the independence of these damage variables during cyclic loading results in the failure to capture the effects of tensile damage on the compressive behavior of concrete and vice-versa. This study presents a cyclic model established by extending an existing monotonic constitutive model. The model describes the cyclic behavior of concrete under multiaxial loading conditions and considers the influence of tensile/compressive damage on the compressive/tensile response. The proposed model, dubbed the enhanced concrete damage plasticity model (ECDPM), is an extension of an existing model that combines the theories of classical plasticity and continuum damage mechanics. Unlike most prior studies on models in the same category, the performance of the proposed ECDPM is evaluated using experimental data on concrete specimens at the material level obtained under cyclic multiaxial loading conditions including uniaxial tension and confined compression. The performance of the model is observed to be satisfactory. Furthermore, the superiority of ECDPM over three previously proposed constitutive models is demonstrated through comparisons with the results of a uniaxial tension-compression test and a virtual test.

Keywords： damage plasticity model     plain concrete     cyclic loading     multiaxial loading conditions    

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Determination of the principal factors of river water quality through cluster analysis method and its

Liang GUO, Ying ZHAO, Peng WANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2,   Pages 238-245 doi: 10.1007/s11783-011-0382-7

Abstract: In this paper, an artificial neural network model was built to predict the Chemical Oxygen Demand (COD) measured by permanganate index in Songhua River.which optimized the topological structure of the prediction model input items of the artificial neural networkforecasting skill significantly through the comparison between results of prediction by artificial neural network

Keywords： water quality forecast     principal factor     cluster analysis method     artificial neural network    

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Investigation on the freeze-thaw damage to the jointed plain concrete pavement under different climate

Shuaicheng GUO, Qingli DAI, Jacob HILLER

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 2,   Pages 227-238 doi: 10.1007/s11709-017-0426-6

Abstract: Freeze-thaw damage is one of the main threats to the long time performance of the concrete pavement in the cold regions. This project aims to evaluate the influence of the freeze-thaw damages on pavement distresses under different climate conditions. Based on the Long-Term Pavement Performance (LTPP) data base, the freeze-thaw damage generated by four different kinds of climate conditions are considered in this project: wet-freeze, wet-non freeze, dry-freeze and dry-non freeze. The amount of the transverse crack and the joint spalling, along with the International Roughness Index ( ) are compared among the test sections located in these four different climate conditions. The back calculation with the Falling Weight Deflectometer (FWD) test results based on the ERES and the Estimation of Concrete Pavement Parameters (ECOPP) methods are conducted to obtain concrete slab elastic modulus and the subgrade -value. These two parameters both decrease with service time under freeze condition. Finally, MEPDG simulation is conducted to simulate the development with service year. These results showed the reasonable freeze-thaw damage development with pavement service life and under different climate conditions.

Keywords： LTPP     elastic modulus     k-value     IRI     MEPDG    

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Evaluation of groundwater quality in the Xinjiang Plain Area

Jinlong ZHOU, Xinguang DONG, Yiping WANG, Guomin LI, Xiaojing GUO,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 2,   Pages 183-186 doi: 10.1007/s11783-010-0021-8

Abstract: Groundwater is the main source of drinking water for the urban and rural residents in the plain areaThe results indicate that the groundwater in the mainstream area of the Tarim Basin and the Yerqiang RiverSub-basin belongs to Category V; the groundwater in the Wulungu River Sub-basin, the Kaidu-Kongque RiverSub-basin, the Kashgar River Sub-basin, the Cherchen River Sub-basin and the Hotan River Sub-basin belongsThe results can be useful for the evaluation and management of water resources in the Xinjiang Plain

Keywords： groundwater quality     evaluation     one veto method     total dissolved solids (TDS)     pH     total hardness    

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Ballistic behavior of plain and reinforced concrete slabs under high velocity impact

Chahmi OUCIF, Luthfi Muhammad MAULUDIN, Farid Abed

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 299-310 doi: 10.1007/s11709-019-0588-5

Abstract: work presents a numerical simulation of ballistic penetration and high velocity impact behavior of plainIn this paper, we focus on the comparison of the performance of the plain and reinforced concrete slabsreinforcements to the concrete samples were found efficient in terms of ballistic resistance comparing to the plain

Keywords： Johnson-Holmquist-2     Johnson-Cook     reinforced concrete     damage     impact loads    

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Quantitative analysis of yield and soil water balance for summer maize on the piedmont of the North China Plain

Jingjing WANG,Feng HUANG,Baoguo LI

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 4,   Pages 295-310 doi: 10.15302/J-FASE-2015074

Abstract: The North China Plain (NCP) is a major grain production area in China, but the current winter wheat-summer

Keywords： AquaCrop     summer maize     soil water balance     water productivity    

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Improving water use efficiency in grain production of winter wheat and summer maize in the North China Plain

Xiying ZHANG,Wenli QIN,Juanna XIE

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 1,   Pages 25-33 doi: 10.15302/J-FASE-2016090

Abstract: ) in grain production is critical for the development of sustainable agriculture in the North China Plain

Keywords： harvest index     cultivar selection     deficit irrigation     root water uptake     straw mulching    

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compaction parameters for sand-filled embankment using large thickness sand filling technique in Jianghan Plain

Wentao WANG, Chongzhi TU, Rong LUO

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 568-576 doi: 10.1007/s11709-017-0444-4

Abstract: the finite element method to simulate a new technique of highway sand embankment filling in Jianghan Plain

Keywords： sand embankment     compaction in large thickness     numerical simulation     small size vibratory roller     steady compaction    

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Spatial Variability and Distribution of Nitrate Content of Shallow Groundwater in Huang-Huai-Hai Plain

Li Baoguo,Bai Youlu,Hu Kelin,Huang Yuanfang,Chen Deli

Strategic Study of CAE 2001, Volume 3, Issue 4,   Pages 42-45

Abstract: spatial variability and distribution of NO3- N in shallow groundwater in Huang-Huai-Hai Plain>—N concentration over 20 mg· L-1 was about 10% of the whole Huang-Huai-Hai Plainwas mainly distributed in the zone from Tianjin to Jinan and Xincai, Fuyang and Bengbu in the Huaihe RiverLianyungang in Jiangsu Province and Weifang,in Shandong Provence, which was about 11.5% of the Huang-Huai-Hai Plainfertilizer utilization efficiency and to the sustaining agricultural development in Huang-Huai-Hai Plain

Keywords： Huang-Huai-Hai Plain     groundwater     nitrate     spatial distribution    

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Title Author Date Type Operation

Statistics and countermeasures of non point source pollution in plain river network of Taihu Basin

Qin Zhong,Geng Qingwei,Zang Guimin

Journal Article

Theory and Practice of Hydrodynamic Reconstruction in Plain River Networks

Hongwu Tang, Saiyu Yuan, Hao Cao

Journal Article

On the environment evolvement of Jingjiang River Valley and the forming processes of Twain-Hu Plain Basinin the middle reaches of the Yangtze River

Hu Dongsheng,Zhang Huajing,Xu Bing,Gou Qingmei,Yu Xuefeng,Tian Xinhong,Liu Weiguo,An Zhisheng,Zhang Guowei

Journal Article

response of bacterial community to the changes of nutrients and pollutants in sediments from an urban rivernetwork

Fang Zhang, Hao Zhang, Ying Yuan, Dun Liu, Chenyu Zhu, Di Zheng, Guanghe Li, Yuquan Wei, Dan Sun

Journal Article

Distribution of phytoplankton community and its influence factors in an urban river network, East China

Ling Sun, Hui Wang, Yuanqing Kan, Shiliang Wang

Journal Article

GROUNDWATER DEPLETION IN THE NORTH CHINA PLAIN: THE AGROHYDROLOGICAL PERSPECTIVE

Journal Article

An enhanced damage plasticity model for predicting the cyclic behavior of plain concrete under multiaxial

Mohammad Reza AZADI KAKAVAND, Ertugrul TACIROGLU

Journal Article

Determination of the principal factors of river water quality through cluster analysis method and its

Liang GUO, Ying ZHAO, Peng WANG

Journal Article

Investigation on the freeze-thaw damage to the jointed plain concrete pavement under different climate

Shuaicheng GUO, Qingli DAI, Jacob HILLER

Journal Article

Evaluation of groundwater quality in the Xinjiang Plain Area

Jinlong ZHOU, Xinguang DONG, Yiping WANG, Guomin LI, Xiaojing GUO,

Journal Article

Ballistic behavior of plain and reinforced concrete slabs under high velocity impact

Chahmi OUCIF, Luthfi Muhammad MAULUDIN, Farid Abed

Journal Article

Quantitative analysis of yield and soil water balance for summer maize on the piedmont of the North China Plain

Jingjing WANG,Feng HUANG,Baoguo LI

Journal Article

Improving water use efficiency in grain production of winter wheat and summer maize in the North China Plain

Xiying ZHANG,Wenli QIN,Juanna XIE

Journal Article

compaction parameters for sand-filled embankment using large thickness sand filling technique in Jianghan Plain

Wentao WANG, Chongzhi TU, Rong LUO

Journal Article

Spatial Variability and Distribution of Nitrate Content of Shallow Groundwater in Huang-Huai-Hai Plain

Li Baoguo,Bai Youlu,Hu Kelin,Huang Yuanfang,Chen Deli

Journal Article