scholarly journals Evaluating the effects of an electric barrier on fish entrainment in an irrigation canal in Colorado

2022 ◽  
Author(s):  
Dan A. Kowalski ◽  
Eric I. Gardunio ◽  
Chase A. Garvey
Keyword(s):  
Irrigation Canal ◽  
Electric Barrier

Role of irrigation canal morphology in driving riparian flora in over-exploited catchments

2020 ◽  
Vol 21 (2) ◽  
pp. 121-132
Author(s):  
Irene Montanari ◽  
Fabrizio Buldrini ◽  
Rossano Bolpagni ◽  
Alex Laini ◽  
Alice Dalla Vecchia ◽  
...  
Keyword(s):  
Irrigation Canal ◽  
Canal Morphology

The Irrigation Canal Stele of the Urartian King Argišti I Recently Discovered in Erciş/Salmanağa, North of Lake Van

2019 ◽  
Vol 109 (2) ◽  
pp. 204-213
Author(s):  
Kenan Işık
Keyword(s):  
Irrigation Canal ◽  
Lake Van ◽  
Irrigation Channel ◽  
Eastern Turkey

Abstract This article presents a recently-found inscribed stele belonging to the Urartian king Argišti I (ca. 785/80–756 BC). The stele was erected to commemorate the inauguration of an irrigation channel running off the Dainalitini Stream (modern Deliçay), north of Lake Van in Eastern Turkey. The inscription on this stele is important, both for localizing the Dainalitini Stream mentioned in Urartian texts, as well as understanding sacrificial rituals in agricultural contexts.

scholarly journals On Modeling and Constrained Model Predictive Control of Open Irrigation Canals

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Lihui Cen ◽  
Ziqiang Wu ◽  
Xiaofang Chen ◽  
Yanggui Zou ◽  
Shaohui Zhang
Keyword(s):  
Model Predictive Control ◽  
Prediction Model ◽  
Predictive Control ◽  
Hyperbolic Partial Differential Equations ◽  
Irrigation Canal ◽  
Irrigation Canals ◽  
Optimal Control Algorithms ◽  
Saint Venant Equations ◽  
Constrained Model ◽  
Constrained Model Predictive Control

This paper proposes a model predictive control of open irrigation canals with constraints. The Saint-Venant equations are widely used in hydraulics to model an open canal. As a set of hyperbolic partial differential equations, they are not solved explicitly and difficult to design optimal control algorithms. In this work, a prediction model of an open canal is developed by discretizing the Saint-Venant equations in both space and time. Based on the prediction model, a constrained model predictive control was firstly investigated for the case of one single-pool canal and then generalized to the case of a cascaded canal with multipools. The hydraulic software SICC was used to simulate the canal and test the algorithms with application to a real-world irrigation canal of Yehe irrigation area located in Hebei province.

scholarly journals The barasingha, or swamp deer, in Suklaphanta Wildlife Reserve, Nepal

Oryx ◽  
1994 ◽  
Vol 28 (3) ◽  
pp. 199-206 ◽  
Author(s):  
J. Henshaw
Keyword(s):  
Environmental Impact ◽  
Field Study ◽  
National Parks ◽  
Wildlife Conservation ◽  
Irrigation Canal ◽  
Protective Measures ◽  
Deer Species ◽  
The World ◽  
Wildlife Reserve ◽  
Swamp Deer

Between 1988 and 1993 six periods of field study were undertaken to investigate the environmental impact of the construction of a main irrigation canal and other works in the proposed extension of Suklaphanta Wildlife Reserve and to recommend protective measures. Suklaphanta is administered by His Majesty's Government of Nepal through the Department of National Parks and Wildlife Conservation. Special emphasis was placed upon the barasingha Cervus duvauceli population because it is the largest remaining group of this endangered deer species in the world. This paper presents recommendations for the management of the barasingha and its habitat.

scholarly journals Bioecological and statistical risk assessment of toxic metals in sediments of a worldwide important wetland: Gala Lake National Park (Turkey)

2017 ◽  
Vol 43 (1) ◽  
pp. 34-47 ◽  
Author(s):  
Cem Tokatli
Keyword(s):  
Ecological Risk ◽  
National Park ◽  
Risk Index ◽  
Sediment Quality ◽  
Potential Ecological Risk ◽  
Irrigation Canal ◽  
Anthropogenic Pressure ◽  
Ecological Risk Index ◽  
Potential Ecological Risk Index ◽  
Biological Risk

Abstract Gala Lake National Park that has an international importance is one of the most important wetland ecosystems for Turkey. As same as many aquatic habitats, Gala Lake is under a significant anthropogenic pressure originated from agricultural activities conducted around the lake and from industrial discharges by means of Ergene River. The aim of this study was to evaluate the sediment quality of Gala Lake and Irrigation Canal by investigating some toxic element accumulations (As, B, Ni, Cr, Pb, Cd, Zn and Cu) from a statistical perspective. Pearson Correlation Index (PCI) and Factor Analysis (FA) were applied to detected data in order to determine the associated contaminants and effective factors on the system. Potential Ecological Risk Index (RI) and Biological Risk Index based sediment quality guidelines (mERM-Q) applied to detected data in order to assess the ecological and biological risks of heavy metals in the ecosystem. Also Geographic Information System (GIS) technology was used to make visual explanations by presenting distribution maps of investigated elements. According to the results of PCI, significant positive correlations were recorded among the investigated toxic elements at 0.01 significance level. According to the results of FA, two factors, which were named as “Agricultural Factor” and “Industrial Factor”, explained 86.6% of the total variance. According to the results of Potential Ecological Risk Index, cadmium was found to be the highest risk factor and according to results of Biological Risk Index, nickel and chromium were found to be the highest risk factors for Gala Lake and Irrigation Canal. As a result of the present study, it was also determined that heavy metal contents in sediments of Gala Lake National Park reached to critical levels and the system is intensively under effect of agricultural and industrial originated pollution.

Sign in / Sign up

Export Citation Format

Share Document