The Development and Ecological Responses of Fishways under the Legislative Trend of Environmental Flows in China

2013 ◽  
Vol 361-363 ◽  
pp. 949-953
Author(s):  
Chang Chun Chen ◽  
La Chun Wang ◽  
Jie Song ◽  
Xue Zhang Cao
Keyword(s):  
Environmental Flows ◽  
Negative Influence ◽  
Current Situation ◽  
Ecological Systems ◽  
Fish Migration ◽  
Water Requirements ◽  
Ecological Responses ◽  
Historical Reason ◽  
Ecological Water Requirements

Fishways play an important role in the mitigation of negative influence of hydraulic projects on fish, and can help maintain river connectivity and fish migration in river ecological systems. Based on the current situation of fishways construction in China, this paper demonstrated the legislative prospect of environmental flows, and analyzed the historical reason of depression of fishways. Focusing on adaptable measures of fishways development to legislative and ecological water requirements, four proposals were provided, which included strengthening the supervision, promoting the ecological integration, exploring the behavior of fish, and investigating the ecohydraulics of fishways.

scholarly journals COVID-19, Remote Teaching, and the School Ecosystem: a Delicate Relationship

2021 ◽  
Vol 3 (1) ◽  
pp. 85-91
Author(s):  
A. Hedlund
Keyword(s):  
Systems Theory ◽  
Current Situation ◽  
Ecological Systems ◽  
Ecological Systems Theory

The paper explores the current situation with remote teaching in schools in Brazil from the perspective of ecological systems theory and school ecosystem. The situation is analysed from the viewpoints of the main stakeholders: children, parents, teachers and school managers. The author describes typical questions that the stakeholders raise in Brazil and offers answers. Advice is also offered on what can be done by the stakeholders to keep the ecosystem balanced.

Knowledge sharing on fish-friendly hydropower: the FIThydro wiki

2021 ◽  
Author(s):  
Bendik Hansen ◽  
Lennart Schönfelder
Keyword(s):  
Decision Making ◽  
Decision Support ◽  
Environmental Flows ◽  
Green Energy ◽  
Mitigation Measures ◽  
Fish Migration ◽  
Test Cases ◽  
Mitigation Measure ◽  
Support Decision Making ◽  
Classification Table

<p>Hydropower is a key element in the transition to a green energy future. However, this technology also comes with adverse environmental impacts that should be avoided or mitigated. One of the challenges related to hydropower is its impact on fish, and the FIThydro project (2016-2020) has worked on improving the decision support for commissioning and operating hydropower using both existing and innovative technologies. One of the outputs from the project is the FIThydro wiki, which is a collection of mitigation measures, methods, tools and devices for the assessment and measure implementation of fish-friendly hydropower. The mitigation measures are divided into five categories of challenges: environmental flows, habitat, sediment management, upstream fish migration, and downstream fish migration. Each mitigation measure has a description of which methods, tools, and devices to use during the three separate stages of planning, implementation, and operation/monitoring. They also contain a classification table describing different aspects of the solution, such as TRL, suitable locations, which challenges are mitigated, and costs. Similar articles exist for methods, tools, and devices that can be useful in implementing mitigation measures, as well as for test cases in the project. The wiki is closely linked to a Decision Support System (DSS), which helps guide users to the appropriate mitigation measures. The wiki can support decision-making and contribute to a more transparent and simple communication/negotiation of hydropower-related issues through a clarification of terms and technologies.  </p>

scholarly journals A General Approach to Predicting Ecological Responses to Environmental Flows: Making Best Use of the Literature, Expert Knowledge, and Monitoring Data

2014 ◽  
Vol 31 (4) ◽  
pp. 505-514 ◽  
Author(s):  
J. A. Webb ◽  
S. C. Little ◽  
K. A. Miller ◽  
M. J. Stewardson ◽  
I. D. Rutherfurd ◽  
...  
Keyword(s):  
Expert Knowledge ◽  
Environmental Flows ◽  
Monitoring Data ◽  
Ecological Responses

Quantifying water requirements of riparian river red gum (Eucalyptus camaldulensis) in the Murray-Darling Basin, Australia - implications for the management of environmental flows

Ecohydrology ◽  
2015 ◽  
Vol 8 (8) ◽  
pp. 1471-1487 ◽  
Author(s):  
Tanya M. Doody ◽  
Matthew J. Colloff ◽  
Micah Davies ◽  
Vijay Koul ◽  
Richard G. Benyon ◽  
...  
Keyword(s):  
Environmental Flows ◽  
Eucalyptus Camaldulensis ◽  
Water Requirements ◽  
Murray Darling Basin ◽  
River Red Gum

Estimation of ecological water requirements based on habitat response to water level in Huanghe River Delta, China

2010 ◽  
Vol 20 (4) ◽  
pp. 318-329 ◽  
Author(s):  
Baoshan Cui ◽  
Yanyan Hua ◽  
Chongfang Wang ◽  
Xiaolin Liao ◽  
Xuejie Tan ◽  
...  
Keyword(s):  
Water Level ◽  
River Delta ◽  
Water Requirements ◽  
Huanghe River ◽  
Huanghe River Delta ◽  
Response To Water ◽  
Ecological Water Requirements ◽  
Habitat Response

scholarly journals Estimating Sectoral Water Demand for Sindh Province of Pakistan

2020 ◽  
Vol 39 (2) ◽  
pp. 398-406
Author(s):  
Heman Das Lohano ◽  
Fateh Muhammad Marri
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
Water Demand ◽  
Environmental Flows ◽  
Change Scenario ◽  
Total Water ◽  
Water Requirements ◽  
Sindh Province ◽  
The Impact ◽  
Total Water Demand

Water resources in Sindh province of Pakistan are under significant pressure due to increasing and conflicting water demand from municipalities for domestic users, agriculture and industries, and requirements of environmental flows. Population growth and climate change are likely to pose serious challenges to households and economic sectors that depend on water. This study estimates the present water demand from municipalities, agriculture and industries, and its future projections by the year 2050 in Sindh. The study also evaluates the impact of climate change on sectoral water demand and assesses the water requirements for the environmental flows. The results show that presently the total water demand for these sectors in Sindh is 44.06 Million Acre Feet (MAF). Agriculture is the largest consumer of water, accounting for 95.24 percent of the total water demand. Municipal water demand accounts for 2.61 percent while industrial water demand accounts for 1.88 percent. The demand for water in these sectors is expected to rise by 10 percent from 2018 to 2050. Moreover, depending on climate change scenario, the total water demand in these three sectors is likely to rise by 16 to 25 percent from 2018 to 2050. In additions, water requirements for the environmental flows have been indicated as 10 MAF in the National Water Accord of 1991. The findings of this study call for policy measures and strategies for management of water resources in Sindh.

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