Development of Watershed Management Strategies for the Chiang-Chun River Basin, Taiwan

2008 ◽  
Vol 12 (1) ◽  
pp. 47-52 ◽  
Author(s):  
M. S. Lee ◽  
T. Y. Chen ◽  
C. M. Kao ◽  
J. L. Hung ◽  
C. Y. Chen
Keyword(s):  
River Basin ◽  
Watershed Management ◽  
Management Strategies

scholarly journals The application of environmental governance for sustainable watershed-based management

2021 ◽  
Author(s):  
Seiichi Kagaya ◽  
Tetsuya Wada
Keyword(s):  
Environmental Protection ◽  
River Basin ◽  
Watershed Management ◽  
Water Use ◽  
Flood Control ◽  
Environmental Governance ◽  
Planning Process ◽  
Environment Assessment ◽  
Control Water

AbstractIn recent years, it has become popular for some of countries and regions to adapt the system of governance to varied and complex issues concerned with regional development and the environment. Watershed management is possibly the best example of this. It involves flood control, water use management and river environment simultaneously. Therefore, comprehensive watershed-based management should be aimed at balancing those aims. The objectives of this study are to introduce the notion of environmental governance into the planning process, to establish a method for assessing the alternatives and to develop a procedure for determining the most appropriate plan for environmental governance. The planning process here is based on strategic environment assessment (SEA). To verify the hypothetical approach, the middle river basin in the Tokachi River, Japan was selected as a case study. In practice, after workshop discussions, it was found to have the appropriate degree of consensus based on the balance of flood control and environmental protection in the watershed.

Monitoring micropollutants in the Swist river basin

2016 ◽  
Vol 74 (10) ◽  
pp. 2280-2296 ◽  
Author(s):  
Ekkehard Christoffels ◽  
Andrea Brunsch ◽  
Jens Wunderlich-Pfeiffer ◽  
Franz Michael Mertens
Keyword(s):  
River Basin ◽  
Urban Areas ◽  
Flame Retardants ◽  
Wastewater Treatment Plants ◽  
Beta Blockers ◽  
Management Strategies ◽  
Sewer System ◽  
Receiving River ◽  
Western Germany ◽  
Industrial Compounds

Micropollutant pathways were studied for the Swist river basin (Western Germany). The aim was to verify the effectiveness of a monitoring approach to detect micropollutants entering the river. In a separate sewer system, water was frequently found to be contaminated with micropollutants. Improper connections of sewage canals to the stormwater network seemed to be the cause of pollution. Wastewater treatment plants (WWTPs) exerted the largest influence on micropollutants for the receiving river. During a flu outbreak, antibiotics in the Swist stemming from WWTPs increased remarkably. Elevated levels of pharmaceuticals were measured in discharges from a combined sewer overflow (CSO). The study showed that the pharmaceutical load of a CSO was significantly reduced by advanced treatment with a retention soil filter. Painkillers, an anticonvulsant and beta blockers were the most often detected pharmaceuticals in the sewage of urban areas. Herbicides, flame retardants and industrial compounds were also observed frequently. On cropland, Chloridazon and Terbuthylazine compounds were often found in landscape runoff. Fungicides and insecticides were the most frequent positive findings in runoff from orchards. The paper shows that a coherent approach to collecting valid information regarding micropollutants and to addressing relevant pathways as a basis for appropriate management strategies could be established.

scholarly journals Hydrological recovery in two large forested watersheds of southeastern China: the importance of watershed properties in determining hydrological responses to reforestation

2016 ◽  
Vol 20 (12) ◽  
pp. 4747-4756 ◽  
Author(s):  
Wenfei Liu ◽  
Xiaohua Wei ◽  
Qiang Li ◽  
Houbao Fan ◽  
Honglang Duan ◽  
...  
Keyword(s):  
Watershed Management ◽  
Large Scale ◽  
Management Strategies ◽  
Forest Recovery ◽  
Southeastern China ◽  
Forested Watersheds ◽  
Positive Effects ◽  
Low Flows ◽  
Hydrological Responses ◽  
High Flows

Abstract. Understanding hydrological responses to reforestation is an important subject in watershed management, particularly in large forested watersheds ( >  1000 km2). In this study, we selected two large forested watersheds (Pingjiang and Xiangshui) located in the upper reach of the Poyang Lake watershed, southeastern China (with an area of 3261.4 and 1458 km2, respectively), along with long-term data on climate and hydrology (1954–2006) to assess the effects of large-scale reforestation on streamflow. Both watersheds have similar climate and experienced comparable and dramatic forest changes during the past decades, but with different watershed properties (e.g., the topography is much steeper in Xiangshui than in Pingjiang), which provides us with a unique opportunity to compare the differences in hydrological recovery in two contrasted watersheds. Streamflow at different percentiles (e.g., 5, 10, 50 and 95 %) were compared using a combination of statistical analysis with a year-wise method for each watershed. The results showed that forest recovery had no significant effects on median flows (Q50%) in both watersheds. However, reforestation significantly reduced high flows in Pingjiang, but had limited influence in Xiangshui. Similarly, reforestation had significant and positive effects on low flows (Q95%) in Pingjiang, while it did not significantly change low flows in Xiangshui. Thus, hydrological recovery is limited and slower in the steeper Xiangshui watershed, highlighting that watershed properties are also important for determining hydrological responses to reforestation. This finding has important implications for designing reforestation and watershed management strategies in the context of hydrological recovery.

Water quality monitoring: the basis for watershed management in the Oldman River Basin, Canada

2006 ◽  
Vol 53 (10) ◽  
pp. 153-161 ◽  
Author(s):  
C.W. Koning ◽  
K.A. Saffran ◽  
J.L. Little ◽  
L. Fent
Keyword(s):  
Water Quality ◽  
Point Source ◽  
River Basin ◽  
Watershed Management ◽  
Health Concern ◽  
Quality Data ◽  
Oil And Gas Development ◽  
Water Quality Data ◽  
Oldman River Basin ◽  
Oldman River

The Oldman River flows 440 km from its headwaters in south-western Alberta, through mountains, foothills and plains into the South Saskatchewan River. Peak flows occur in May and June. Three major reservoirs, together with more than a dozen other structures, supply water to nine irrigation districts and other water users in the Oldman basin. Human activity in the basin includes forestry, recreation, oil and gas development, and agriculture, including a large number of confined livestock feeding operations. Based on the perception of basin residents that water quality was declining and of human health concern, the Oldman River Basin Water Quality Initiative was formed in 1997 to address the concerns. There was limited factual information, and at the time there was a desire for finger pointing. Results (1998–2002) show that mainstem water quality remains good whereas tributary water quality is more of a challenge. Key variables of concern are nutrients, bacteria and pesticides. Point source discharges are better understood and better regulated, whereas non-point source runoff requires more attention. Recent data on Cryptosporidium and Giardia species are providing benefit for focusing watershed management activities. The water quality data collected is providing a foundation to implement community-supported urban and rural better management practices to improve water quality.

scholarly journals Establishment of Watershed Management System for Efficient Water Management in the Yeongsan and Seomjin River Basin

2012 ◽  
Vol 31 (2) ◽  
pp. 200-204
Author(s):  
Hee-Joung Joung ◽  
Jae-Woon Jung ◽  
Kap-Soon Kim ◽  
Ha-Na Park ◽  
Byung-Jin Lim ◽  
...  
Keyword(s):  
Water Management ◽  
River Basin ◽  
Watershed Management ◽  
Management System ◽  
Seomjin River

Integrating 1D-2D Hydrodynamic Model For Sabarmati Upper River Basin With Special Reference to Ahmedabad City Area

2021 ◽  
Author(s):  
sejal chandel ◽  
suvarna shah
Keyword(s):  
River Basin ◽  
Hydrodynamic Model ◽  
Management Strategies ◽  
Flow Simulation ◽  
Urban Setting ◽  
Flood Inundation ◽  
Flash Flooding ◽  
Arc Gis ◽  
Sabarmati River ◽  
The Impact

<p>In recent study, Gujarat has become one of the India’s most urbanized state, causing severe flash flooding. The Sabarmati river is one of the major west-flowing rivers in India and biggest river of north Gujarat.Urbanization should meet the population’s need by enlargement of paved areas, which has unusually changed the catchment’s hydrological and hydraulic characteristic. Therefor, the frequency of flash flooding in Sabarmati river has been increased. The Sabarmati river basin experienced eight times devastating flooding coendition between 1972 to 2020.Among which July 2017 flooding event breakdown a 112 years old record of 1905. The Dharoi dam and Wasna barrage on Sabarmati river and surrounding district Kheda, Mehsana, Gandhinagar, Ahmedabad received a huge rainfall caused anomalous inflow to tributary which forced the dam authorities to release huge discharge in short duration which leads to flooding. The Sabarmati riverfront of Ahmedabad had been going under water for five days due incessant rainfall in the city that leads to swelling of the Sabarmati river in 2017. In order to determine extent of Inundation, Hydrodynamic Model HEC-RAS(5.0.6) with Arc GIS was used. Various scenarios were run with HEC-RAS to study the impact of flow simulation on flood inundation(with & without riverfront project). The simulated flood depths have been compared with actual depths obtained at gauging station, which were collected from Government authorities. Ultimately, the analysis was used to create maps for different return periods with RAS Mapper and ArcMap that visually show the reach of the floodplains, illustrating the affected areas. Results demonstrate the usefulness of  modelling system to predict the extent of flood inundation and thus support analyses of management strategies to deal with risk associated with infrastructure in an urban setting.</p>

Conflict Intensity in African Water Basins: Water Stress and the Effectiveness of Water Management Strategies

2018 ◽  
Author(s):  
Sarah Boyce
Keyword(s):  
Water Management ◽  
Water Stress ◽  
River Basin ◽  
Management Strategies ◽  
Water Sources ◽  
Nile River ◽  
Social Stability ◽  
Lake Turkana ◽  
Conflict Intensity ◽  
Zambezi River

Access to cross-border water sources in the African regions of the Nile River, Zambezi River, and Lake Turkana Basins becomes less certain as global population, human consumption, and climate change increase. Uncertainty during periods of high demand for water in agro-dependent economies creates circumstances of water stress, where social stability is low as stakeholders compete over scarce water sources. Longstanding traditions of political power, such as colonial rule and the status of regional superpowers, reinforce the unequal resource distribution. All three regions encounter water stress in the form of floods or droughts. They rely on dam projects that modify water distribution and basin agreements that reallocate political power to manage stress. The basins vary, however, in conflict intensity and effectiveness of water management strategies. The Nile River Basin exhibits low-intensity conflict and has institutionalized collaborative management strategies; the Zambezi River Basin demonstrates medium-intensity conflict with theoretically collaborative initiatives that fall short in practice; the Lake Turkana Basin exemplifies high-intensity conflict, lacking collaborative agreements. In order to address the discrepancy in outcomes, this study asks: what factors contribute to the intensity of conflict surrounding water stress? And, to what extent are water management practices effective in promoting cooperation and preventing conflict? The study concludes that the most intense conflicts occur in rural localities, where social instability is high and resource distribution is uneven. Collaborative agreements and international involvement in water management initiatives increase social stability and decrease conflict intensity by institutionalizing equitable distribution of water in a changing environment. 

scholarly journals A coupled modeling framework for sustainable watershed management in transboundary river basins

2017 ◽  
Vol 21 (12) ◽  
pp. 6275-6288 ◽  
Author(s):  
Hassaan Furqan Khan ◽  
Y. C. Ethan Yang ◽  
Hua Xie ◽  
Claudia Ringler
Keyword(s):  
River Basin ◽  
Watershed Management ◽  
Water Resource ◽  
Ecosystem Health ◽  
Water System ◽  
River Basins ◽  
System Model ◽  
Transboundary River ◽  
Transboundary River Basins ◽  
Water Uses

Abstract. There is a growing recognition among water resource managers that sustainable watershed management needs to not only account for the diverse ways humans benefit from the environment, but also incorporate the impact of human actions on the natural system. Coupled natural–human system modeling through explicit modeling of both natural and human behavior can help reveal the reciprocal interactions and co-evolution of the natural and human systems. This study develops a spatially scalable, generalized agent-based modeling (ABM) framework consisting of a process-based semi-distributed hydrologic model (SWAT) and a decentralized water system model to simulate the impacts of water resource management decisions that affect the food–water–energy–environment (FWEE) nexus at a watershed scale. Agents within a river basin are geographically delineated based on both political and watershed boundaries and represent key stakeholders of ecosystem services. Agents decide about the priority across three primary water uses: food production, hydropower generation and ecosystem health within their geographical domains. Agents interact with the environment (streamflow) through the SWAT model and interact with other agents through a parameter representing willingness to cooperate. The innovative two-way coupling between the water system model and SWAT enables this framework to fully explore the feedback of human decisions on the environmental dynamics and vice versa. To support non-technical stakeholder interactions, a web-based user interface has been developed that allows for role-play and participatory modeling. The generalized ABM framework is also tested in two key transboundary river basins, the Mekong River basin in Southeast Asia and the Niger River basin in West Africa, where water uses for ecosystem health compete with growing human demands on food and energy resources. We present modeling results for crop production, energy generation and violation of eco-hydrological indicators at both the agent and basin-wide levels to shed light on holistic FWEE management policies in these two basins.

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