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Investigation and Evaluation on water environment quality of Xiawan Reservoir and Its Adjacent waters in Zhaoqing

Meteorological and environmental Research 2021年第2期12卷 38-42页

作者： Jianqiao QIN Lizhi LIANG Dongni YU Jiali HUANG School of environmental and Chemical Engineering Zhaoqing UniversityZhaoqing 526061China Guangdong Key Laboratory of environmental Health and Resource Utilization Zhaoqing 526061China

Town Planning Board of Zhaoqing passed the Planning and Design of Xiawan Urban Wetland Park in Zhaoqing City in 2012,and Xiawan Reservoir,located at the junction of Duanzhou District and Dinghu District,would be built into a wetland park at that *** understand water quality status near the wetland park,according to relevant requirements of the Technical Guidelines for environmental Impact Assessment:Surface water environment(HJ/T 2.3-93),the environmental quality Standards for Surface water(GB 3838-2002),and the Technical Specification for environmental Monitoring issued by the State environmental Protection Administration,Xiawan Reservoir,Houlichong and the Xijiang River were investigated,monitored and evaluated.

关键词： Xiawan Reservoir water environment quality Investigation and evaluation

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Synergetic pathways of water-energy-carbon in ecologically vulnerable regions aiming for carbon neutrality: a case study of Shaanxi, China

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FRONTIERS OF environmentAL SCIENCE & ENGINEERING 2024年第9期18卷 106-0页

作者： Liu, Yingying Li, Hanbing Chen, Sha Zhang, Lantian Li, Sumei Lv, He Gao, Ji Cui, Shufen Jiang, Kejun Beijing Univ Technol Dept Environm Sci Key Lab Beijing Reg Air Pollut Control Beijing 100124 Peoples R China China Met Ind Planning & Res Inst Beijing 100711 Peoples R China Environm Def Fund Beijing 100007 Peoples R China Lishui Univ Dept Elect Lishui 323000 Peoples R China Energy Res Inst Beijing 100038 Peoples R China

Synergetic energy-water-carbon pathways are key issues to be tackled under carbon-neutral target and high-quality development worldwide, especially in ecologically vulnerable regions (EVRs). In this study, to explore the synergistic pathways in an EVR, a water-energy-carbon assessment (WECA) model was built, and the synergistic effects of water-energy-carbon were comprehensively and quantitatively analyzed under various scenarios of regional transition. Shaanxi Province was chosen as the representative EVR, and Lower challenge (LEC) and Greater challenge (GER) scenarios of zero-carbon transition were set considering the technological maturity and regional energy characteristics. The results showed that there were limited effects under the zero-carbon transition of the entire region on reducing water withdrawals and improving the water quality. In the LEC scenario, the energy demand and CO2 emissions of Shaanxi in 2060 will decrease by 70.9% and 99.4%, respectively, whereas the water withdrawal and freshwater aquatic ecotoxicity potential (FAETP) will only decrease by 8.9% and 1.6%, respectively. This could be attributed to the stronger demand for electricity in the energy demand sector caused by industrial transition measures. The GER scenario showed significant growth in water withdrawals (16.0%) and FAETP (36.0%) because of additional biomass demand. To promote the synergetic development of regional transition, EVRs should urgently promote zero-carbon technologies (especially solar and wind power technologies) between 2020 and 2060 and dry cooling technology for power generation before 2030. In particular, a cautious attitude toward the biomass energy with carbon capture and storage technology in EVRs is strongly recommended.

关键词： Carbon neutrality water withdrawals water environment quality Ecologically vulnerable region Typical regional transition CO2 EMISSIONS

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Evaluation on environment State of Breeding Area in Shuidong Bay by Using Fuzzy Comprehensive Evaluation Method

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Journal of Northeast Agricultural University(English Edition) 2010年第2期17卷 64-68页

作者： XU Yonghua 1,and SUN Yong 2 1 Heilongjiang Agriculture Polytechnic University,Jiamusi 154007,Heilongjiang,China 2 Engineering College,Northeast Agricultural University,Harbin 150030,China Heilongjiang Agriculture Polytechnic University Jiamusi 154007HeilongjiangChina Engineering College Northeast Agricultural UniversityHarbin 150030China

Fuzzy comprehensive evaluation method was used to develop a standard model to analyze and evaluate nearness degree of water environment quality at breeding area of Shuidong Bay in *** showed that certain environment contamination factors in some areas seriously exceeded the standard value and led to the whole water quality at the third class *** measurements should be taken to promote the sustainable development of breeding area in Shuidong Bay.

关键词： fuzzy comprehensive evaluation method nearness degree water environment quality

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