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  1. Article ; Online: Identifying external nutrient reduction requirements and potential in the hypereutrophic Lake Taihu Basin, China.

    Peng, Jiao-Ting / Zhu, Xiao-Dong / Sun, Xiang / Song, Xiao-Wei

    Environmental science and pollution research international

    2018  Volume 25, Issue 10, Page(s) 10014–10028

    Abstract: Reducing external nutrient loads is the first step for controlling eutrophication. Here, we identified external nutrient reduction requirements and potential of strategies for achieving reductions to remediate a eutrophic water body, Lake Taihu, China. A ...

    Abstract Reducing external nutrient loads is the first step for controlling eutrophication. Here, we identified external nutrient reduction requirements and potential of strategies for achieving reductions to remediate a eutrophic water body, Lake Taihu, China. A mass balance approach based on the entire lake was used to identify nutrient reduction requirements; an empirical export coefficient approach was introduced to estimate the nutrient reduction potential of the overall program on integrated regulation of Taihu Lake Basin (hereafter referred to as the "Guideline"). Reduction requirements included external total nitrogen (TN) and total phosphorus (TP) loads, which should be reduced by 41-55 and 25-50%, respectively, to prevent nutrient accumulation in Lake Taihu and to meet the planned water quality targets. In 2010, which is the most seriously polluted calendar year during the 2008-2014 period, the nutrient reduction requirements were estimated to be 36,819 tons of N and 2442 tons of P, and the potential nutrient reduction strategies would reduce approximately 25,821 tons of N and 3024 tons of P. Since there is a net N remaining in the reduction requirements, it should be the focus and deserves more attention in identifying external nutrient reduction strategies. Moreover, abatement measures outlined in the Guideline with high P reduction potential required large monetary investments. Achieving TP reduction requirement using the cost-effective strategy costs about 80.24 million USD. The design of nutrient reduction strategies should be enacted according to regional and sectoral differences and the cost-effectiveness of abatement measures.
    MeSH term(s) China ; Environmental Monitoring ; Eutrophication ; Lakes ; Nitrogen/analysis ; Phosphorus/analysis ; Water Pollutants, Chemical/analysis ; Water Quality
    Chemical Substances Water Pollutants, Chemical ; Phosphorus (27YLU75U4W) ; Nitrogen (N762921K75)
    Language English
    Publishing date 2018-01-29
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-018-1250-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Identifying external nutrient reduction requirements and potential in the hypereutrophic Lake Taihu Basin, China

    Peng, Jiao-Ting / Xiao-Dong Zhu / Xiang Sun / Xiao-Wei Song

    Environmental science and pollution research international. 2018 Apr., v. 25, no. 10

    2018  

    Abstract: Reducing external nutrient loads is the first step for controlling eutrophication. Here, we identified external nutrient reduction requirements and potential of strategies for achieving reductions to remediate a eutrophic water body, Lake Taihu, China. A ...

    Abstract Reducing external nutrient loads is the first step for controlling eutrophication. Here, we identified external nutrient reduction requirements and potential of strategies for achieving reductions to remediate a eutrophic water body, Lake Taihu, China. A mass balance approach based on the entire lake was used to identify nutrient reduction requirements; an empirical export coefficient approach was introduced to estimate the nutrient reduction potential of the overall program on integrated regulation of Taihu Lake Basin (hereafter referred to as the “Guideline”). Reduction requirements included external total nitrogen (TN) and total phosphorus (TP) loads, which should be reduced by 41–55 and 25–50%, respectively, to prevent nutrient accumulation in Lake Taihu and to meet the planned water quality targets. In 2010, which is the most seriously polluted calendar year during the 2008–2014 period, the nutrient reduction requirements were estimated to be 36,819 tons of N and 2442 tons of P, and the potential nutrient reduction strategies would reduce approximately 25,821 tons of N and 3024 tons of P. Since there is a net N remaining in the reduction requirements, it should be the focus and deserves more attention in identifying external nutrient reduction strategies. Moreover, abatement measures outlined in the Guideline with high P reduction potential required large monetary investments. Achieving TP reduction requirement using the cost-effective strategy costs about 80.24 million USD. The design of nutrient reduction strategies should be enacted according to regional and sectoral differences and the cost-effectiveness of abatement measures.
    Keywords basins ; cost effectiveness ; eutrophication ; guidelines ; lakes ; nitrogen content ; phosphorus ; pollution load ; surface water ; water quality ; watersheds ; China
    Language English
    Dates of publication 2018-04
    Size p. 10014-10028.
    Publishing place Springer Berlin Heidelberg
    Document type Article
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-018-1250-9
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

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  3. Article: Economic and welfare influences of an energy excise tax in Jiangsu province of China: A computable general equilibrium approach

    Peng, Jiao-Ting / Masashi Taketani / Rui Shi / Xiang Zhang / Xiao-Dong Zhu / Yanmin He / Yuan Wang

    Journal of cleaner production. 2019 Feb. 20, v. 211

    2019  

    Abstract: In recent years, although China's energy intensity has gradually decreased, the total consumption of energy commodities has increased sharply. Levying an excise tax on energy commodities is one of the keys to control energy consumption. This paper ... ...

    Abstract In recent years, although China's energy intensity has gradually decreased, the total consumption of energy commodities has increased sharply. Levying an excise tax on energy commodities is one of the keys to control energy consumption. This paper constructed a Computable General Equilibrium model to simulate levying an energy excise tax in Jiangsu province, which is one of China's strong economic provinces with lower endowments of energy resources. The results show that the energy excise tax is beneficial for energy saving, while levying energy will cause economic and welfare declines. When at a level tax rate of 5%, 10%, and 15%, the loss of GDP will reach 0.27%, 0.66%, and 1.13% respectively, and the incomes of inhabitants and enterprises alike will decrease. When the energy tax revenue used to compensate for the welfare losses suffered by inhabitants or enterprises, there is a double dividend effect (energy saving and increasing income). Moreover, the simulation indicated that a 5% improvement of energy efficiency brings about a “backfire” phenomenon, with an increase of 142% in energy consumption. However, when considering the cost of energy-efficiency improvements, the rebound effect will be significantly decreased. Policy suggestions are further recommended to help improve the energy policy in regard to reducing energy consumption.
    Keywords business enterprises ; energy conservation ; energy efficiency ; energy policy ; energy resources ; excise tax ; income ; products and commodities ; simulation models ; China
    Language English
    Dates of publication 2019-0220
    Size p. 1403-1411.
    Publishing place Elsevier Ltd
    Document type Article
    ISSN 0959-6526
    DOI 10.1016/j.jclepro.2018.11.267
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  4. Article: Climatic Variabilities Control the Solute Dynamics of Monsoon Karstic River: Approaches from C-Q Relationship, Isotopes, and Model Analysis in the Liujiang River

    Liu, Jing / Ding, Hu / Xiao, Min / Xu, Zhu-Yan / Wei, Yuan / Su, Zhi-Hua / Zhao, Lei / Peng, Jiao-Ting / Wang, Heng / Wang, Xiao-Dan

    Water. 2020 Mar. 19, v. 12, no. 3

    2020  

    Abstract: The dynamics of riverine solutes’ contents and sources reflect geological, ecological, and climatic information of the draining basin. This study investigated the influence of climatic variability on solute dynamics by the high-frequency hydrogeochemical ...

    Abstract The dynamics of riverine solutes’ contents and sources reflect geological, ecological, and climatic information of the draining basin. This study investigated the influence of climatic variability on solute dynamics by the high-frequency hydrogeochemical monitory in the Liujiang River draining karst terrain of Guangxi Province, SW (Southwestern) China. In the study river, the content-discharge (C-Q) patterns of riverine solutes indicate that the majority of riverine solutes show similar dilution and near chemostatic behaviors responding to increasing discharge, especially geogenic solutes (such as weathering products from carbonate, silicate, and sulfide oxidation), whereas exogenous solutes (such as atmospheric input to riverine sulfate) and biological solutes (such as soil CO₂) show higher contents with increasing discharge. Besides, the biological carbon is the main driver of the chemostatic behaviors of total dissolved inorganic carbon (DIC). The forward model results show that carbonate weathering dominates the water chemistry, and the weathering rates are intensified during high flow period due to additional inputs of weathering agents, i.e., the biologic carbonic acid from dissolution of soil CO₂, indicated by δ¹³CDIC. In addition, there exists the strong capacity of CO₂ consumption that is heavily dependent on climatic variables such as precipitation and air temperature in this study river. Our study highlights the impact of climatic variability on solutes dynamics and chemical weathering and thus must be better addressed in C models under future climate change scenarios.
    Keywords air temperature ; aquifers ; basins ; carbon ; carbon dioxide ; carbonates ; carbonic acid ; climate change ; climatic factors ; dissolved inorganic carbon ; dynamics ; flow ; hydrogeochemistry ; information ; isotopes ; karsts ; models ; monsoon season ; oxidation ; riparian areas ; rivers ; silicates ; soil ; solutes ; sulfates ; sulfides ; variability ; water ; weathering ; China
    Language English
    Dates of publication 2020-0319
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    Note NAL-light
    ZDB-ID 2521238-2
    ISSN 2073-4441
    ISSN 2073-4441
    DOI 10.3390/w12030862
    Database NAL-Catalogue (AGRICOLA)

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