Community Adoption of Watershed Management Practices at Kindo Didaye District, Southern Ethiopia

Uncertainty in water quality model predictions is inevitably high due to natural stochasticity, model uncertainty, and parameter uncertainty. An integrated modelling system (modified-BASINS) under uncertainty is described and demonstrated for use in receiving-water quality prediction and watershed management. A Monte Carlo simulation was used to investigate the effect of various uncertainty types on output prediction. Without pollution control measures in the watershed, the concentrations of total nitrogen (T-N) and total phosphorus (T-P) in the Hwaong Reservoir, considering three uncertainty types, would be less than about 4.4 and 0.23 mg L−1, respectively, in 2012, with 90% confidence. The effects of two watershed management practices, wastewater treatment plants (WWTP) and constructed wetlands (WETLAND), were evaluated. The combined scenario (WWTP + WETLAND) was the most effective at improving reservoir water quality, bringing concentrations of T-N and T-P in the Hwaong Reservoir to less than 3.4 and 0.14 mg L−1, 24 and 41% improvements, respectively, with 90% confidence. Overall, the Monte Carlo simulation in the integrated modelling system was practical for estimating uncertainty and reliable in water quality prediction. The approach described here may allow decisions to be made based on the probability and level of risk, and its application is recommended.

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Comparative Assessment of Stormwater and Nonpoint Source Pollution Best Management Practices in Suburban Watershed Management

Water ◽

10.3390/w5010280 ◽

2013 ◽

Vol 5 (1) ◽

pp. 280-291 ◽

Cited By ~ 11

Author(s):

Zeyuan Qiu

Keyword(s):

Watershed Management ◽

Nonpoint Source Pollution ◽

Best Management Practices ◽

Management Practices ◽

Nonpoint Source ◽

Comparative Assessment ◽

Best Management

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Identification of critical areas and evaluation of best management practices using SWAT for sustainable watershed management

The Science of The Total Environment ◽

10.1016/j.scitotenv.2020.140737 ◽

2020 ◽

Vol 744 ◽

pp. 140737

Author(s):

Bhumika Uniyal ◽

Madan K. Jha ◽

Arvind Kumar Verma ◽

Prajna Kasargodu Anebagilu

Keyword(s):

Watershed Management ◽

Best Management Practices ◽

Management Practices ◽

Best Management ◽

Critical Areas

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Empowering the Next Generation of Watershed Decision-Makers: A Pedagogical Design

Water ◽

10.3390/w11040662 ◽

2019 ◽

Vol 11 (4) ◽

pp. 662 ◽

Cited By ~ 1

Author(s):

Jim Perry ◽

Louise Thompson

Keyword(s):

Watershed Management ◽

Water Resource Management ◽

Management Practices ◽

Human Right ◽

Goods And Services ◽

Pedagogical Design ◽

Trade Offs ◽

Cultural Boundaries ◽

Decision Making Processes ◽

Uncertain Future

Watershed management is the art and practice of understanding stakeholder values for ecosystem services within a watershed and instituting management practices that consider trade-offs to sustain these goods and services. Effective watershed management practices are hydrologically defined, ecosystem-based, inclusive, and integrate biophysical as well as socioeconomic decisions. The uncertainties and unpredictability of climate change create an ambiguous backdrop to the increasingly social problem of water resource management. Inequities in watershed decision-making processes often lead to the reinforcement of power and resource imbalances. Future watershed managers must be able to engage across socioeconomic and cultural boundaries to support decisions that advance water as a human right in an uncertain future. We offer a design for a graduate level, 15-week university course that uses publicly available resources to help emerging watershed leaders prepare for an uncertain future. The design is interactive and constructivist, engaging the refereed literature and leading to an increased understanding of ecosystem-based watershed management under climate scenarios, with special attention to vulnerable populations.

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Farmers’ Perceptions of Mexican Bean Weevil, Zabrotes subfasciatus (Boheman), and Pest Management Practices in Southern Ethiopia

Advances in Agriculture ◽

10.1155/2019/8193818 ◽

2019 ◽

Vol 2019 ◽

pp. 1-10

Author(s):

Tariku Mesele ◽

Kumela Dibaba ◽

Esayas Mendesil

Keyword(s):

Common Bean ◽

Pest Management ◽

Management Practices ◽

Education Level ◽

Southern Ethiopia ◽

Bean Weevil ◽

Chemical Insecticide ◽

Zabrotes Subfasciatus ◽

The Common ◽

Handling Practices

The common bean, Phaseolus vulgaris L., is one of the most important sources of protein in Ethiopia and other developing countries. However, the Mexican bean weevil, Zabrotes subfasciatus (Boheman), is a major constraint of stored common bean that causes qualitative and quantitative losses. This study was conducted to assess farmers’ knowledge and perceptions of Mexican bean weevil, to examine farmers’ pest management practices, and to identify challenges of pest management practices to develop integrated pest management (IPM) strategies. A survey of 148 smallholder common bean farmers was conducted at Mareka and Loma districts in southern Ethiopia. The majority (75%) of the farmers stored common bean in polypropylene bags while less than 10% of the farmers stored beans in ‘Diya’ (a traditional storage structure). Most (60.8%) farmers stored their beans in seed (threshed) form, and the majority (63.5%) of them stored their beans for 3-5 months. The majority of the farmers had knowledge about the Mexican bean weevil; they could identify damaged seeds based on the ‘holes’ on the seed (72.3%) and circular ‘windows’ on the seed (20.0%). About 45% of the farmers mentioned the high amount of loss at the time of storage. In addition, most farmers (53.4%) estimated 26-50% loss in storage. Most farmers reported the use of pesticidal plants for control of Mexican bean weevil, while only a few farmers reported they had applied insecticide in their store. Education level and family size had a positive and statistically significant impact on the use of pesticidal plants for the control of Mexican bean weevil. Furthermore, education level also influences the use of chemical insecticide. Results highlighted the need to use improved storage technology and to train farmers in postharvest handling practices as a component to develop IPM approach in order to minimize losses occurring along the value chains of the common bean.

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