scholarly journals An Analysis of Water Environment Management Priorities in Hong Kong

1998 ◽  
Vol 10 (s1) ◽  
pp. 35-46
Author(s):  
H. Chua ◽  
◽  
P. H. F. Yu ◽  
M. W. L. Cheung
Keyword(s):  
Hong Kong ◽  
Water Environment ◽  
Environment Management ◽  
Management Priorities

scholarly journals Assessment of Nakdong River Basin Management: Target Water Quality Achievement and Future Challenges

2020 ◽  
Vol 20 (2) ◽  
pp. 251-263
Author(s):  
Kyeong Hwan Kang ◽  
Junghyeon Kim ◽  
Hyeonjin Jeon ◽  
Kyoungwoo Kim ◽  
Imgyu Byun
Keyword(s):  
Water Quality ◽  
River Basin ◽  
Water Environment ◽  
Quality Data ◽  
Master Plan ◽  
Nakdong River ◽  
Environment Management ◽  
Pollutant Load ◽  
Nakdong River Basin ◽  
Representative Points

In 2006, the Korean Ministry of Environment established <The 1st Water Environment Management Master Plan>. The plan aimed at “Clean Water, Eco River 2015” and guided water quality protection and strengthened water management. This study evaluated the achievement of the target water quality among the 33 mid-level basins in the Nakdong River basin and assessments of the causes of non-achievement of the target water quality by mid-level basins. According to the 2015 water quality data, only 16 of the 33 mid-level basins achieved the target water quality. The low achievement of the target water quality was attributed to the failure to predict the pollutant load at the time of planning, problems with the management of tributaries, implementation of the <Four major river restoration project>, and problems with the representativeness of the water quality representative points. In addition, feasibility studies on the water quality monitoring representative point used in each mid-level basin were also performed; some mid-level basins required improvement or change of the representative points. This study also suggested further research to improve water quality, such as detailed studies of the management of pollutant load, mainstream tributaries, and water quality indicators, for the revision of the current ongoing <The 2nd Water Environment Management Master Plan>.

The changes in Mulberry-based fish ponds in the Guangdong-Hong Kong-Macao Greater Bay Area over the past 40 years

2021 ◽  
Author(s):  
Wenxin Zhang ◽  
Zihao Cheng ◽  
Xianfeng Liu ◽  
Gangte Lin ◽  
Junan He ◽  
...  
Keyword(s):  
Hong Kong ◽  
Water Environment ◽  
Fish Ponds ◽  
Visual Interpretation ◽  
Landsat Images ◽  
Rapid Urbanization ◽  
Industrial Transfer ◽  
Intensity Index ◽  
Bay Area ◽  
Water Intensity

&lt;p&gt;Mulberry-based fish ponds are representative traditional eco-agriculture in the Guangdong-Hong Kong-Macao Greater Bay Area (GBA). Investigations about the changes in such ponds and their relevant water environment under the background of rapid urbanization can provide a reference for the protection and development of these ponds. Using the Landsat images obtained after 1986, this study employed supervised classification and visual interpretation approaches and water intensity index as well as calculating synthesized index to identify the spatial patterns of changes in Mulberry-based fish ponds in the GBA. The results indicated that the year of 2013 was the inflection point of fish pond changes, which can also be proved by calculating synthesized index. The causes to the changes in fish ponds were further explored from four aspects: land use change, industrial transfer, government guidance and financial motives.&lt;/p&gt;

scholarly journals Basic study for water-environment management in the Ara-River estuary

1996 ◽  
Vol 40 ◽  
pp. 389-396
Author(s):  
Akihiko NUNOMURA ◽  
Masakazu SHIBATA ◽  
Yuji MINAMI
Keyword(s):  
Water Environment ◽  
River Estuary ◽  
Basic Study ◽  
Environment Management

scholarly journals Construction risk analysis of water environment treatment project based on WBS-RBS and AHP in flood period --Take the EPC project of comprehensive treatment of water environment in the east of a city as an example

2021 ◽  
Vol 236 ◽  
pp. 04025
Author(s):  
Zhi Zheng ◽  
Qi Wu Chen ◽  
Tian Cheng Zhang ◽  
Ren Jie Zhang ◽  
Xing Fu Wang ◽  
...  
Keyword(s):  
Water Environment ◽  
Comprehensive Treatment ◽  
Environment Management ◽  
Engineering Construction ◽  
Flood Season ◽  
Construction Risk ◽  
Project Construction ◽  
Flood Period ◽  
Management Project ◽  
Current Engineering

Basic environment construction is a livelihood project, especially water environment management is a hot topic in current engineering construction. There are more or fewer risks in the water environment treatment construction process, especially the black and smelly water treatment during the flood season. Hidden dangers, especially this year is the resumption of work and production after the epidemic, which coincides with the flood season. This article takes the EPC project of comprehensive water environment management in the east of a city as an example, and combines the WBS-RBS method and AHP analysis to analyze the risks of the water environment management project during the flood period. Analysis enables the project risk to be predicted in advance, and the risk is quantified, so that the risk coefficient is minimized and the project construction can proceed smoothly.

scholarly journals Total Maximum Allocated Load of Chemical Oxygen Demand Near Qinhuangdao in Bohai Sea: Model and Field Observations

Water ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 1141 ◽  
Author(s):  
Zhichao Dong ◽  
Cuiping Kuang ◽  
Jie Gu ◽  
Qingping Zou ◽  
Jiabo Zhang ◽  
...  
Keyword(s):  
Water Quality ◽  
Chemical Oxygen Demand ◽  
Carrying Capacity ◽  
Bohai Sea ◽  
Water Environment ◽  
Oxygen Demand ◽  
Pollutant Emission ◽  
Optimization Approach ◽  
Environment Management ◽  
Total Maximum

Total maximum allocated load (TMAL) is the maximum sum total of all the pollutant loading a water body can carry without surpassing the water quality criterion, which is dependent on hydrodynamics and water quality conditions. A coupled hydrodynamic and water quality model combined with field observation was used to study pollutant transport and TMAL for water environment management in Qinhuangdao (QHD) sea in the Bohai Sea in northeastern China for the first time. Temporal and spatial variations of the chemical oxygen demand (COD) concentration were investigated based on MIKE suite (Danish Hydraulic Institute, Hørsholm, Denmark). A systematic optimization approach of adjusting the upstream pollutant emission load was used to calculate TMAL derived from the predicted COD concentration. The pollutant emission load, TMAL, and pollutant reduction of Luanhe River were the largest due to the massive runoff, which was identified as the most influential driving factor for water environmental capacity and total carrying capacity of COD. The correlation analysis and Spearman coefficient indicate strong links between TMAL and forcing factors such as runoff, kinetic energy, and pollutant emission load. A comparison of total carrying capacity in 2011 and 2013 confirms that the upstream pollutant control scheme is an effective strategy to improve water quality along the river and coast. Although, the present model results suggest that a monitoring system could provide more efficient total capacity control. The outcome of this study establishes the theoretical foundation for coastal water environment management strategy in this region and worldwide.

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