The Impact of Open Water Management System in Amang Processing on the Water Quality and 238U and 232Th Activity Concentrations in Sediment and Water

2003 ◽  
Vol 3 (11) ◽  
pp. 1063-1069 ◽  
Author(s):  
Ismail Bahari . ◽  
Redzuwan Yahaya . ◽  
Muhamad Samudi Yasir . ◽  
Amran Ab. Majid . ◽  
Lin Cheng Lee .
Keyword(s):  
Water Management ◽  
Water Quality ◽  
Management System ◽  
Open Water ◽  
Water Management System ◽  
Activity Concentrations ◽  
The Impact

Fourteenth to Sixteenth Centuries AD

2017 ◽  
Author(s):  
Roland Fletcher ◽  
Brendan M. Buckley ◽  
Christophe Pottier ◽  
Shi-Yu Simon Wang
Keyword(s):  
Water Management ◽  
Management System ◽  
Ice Age ◽  
Small Rivers ◽  
13Th Century ◽  
Water Management System ◽  
Climate Anomalies ◽  
High Magnitude ◽  
Urban Complex ◽  
The Impact

Angkor, the capital of the Khmer Empire in Southeast Asia, was the most extensive low-density agrarian-based urban complex in the world. The demise of this great city between the late 13th and the start of the 17th centuries AD has been a topic of ongoing debate, with explanations that range from the burden of excessive construction work to disease, geo-political change, and the development of new trade routes. In the 1970s Bernard-Phillipe Groslier argued for the adverse effects of land clearance and deteriorating rice yields. What can now be added to this ensemble of explanations is the role of the massive inertia of Angkor’s immense water management system, political dependence on a meticulously organized risk management system for ensuring rice production, and the impact of extreme climate anomalies from the 14th to the 16th centuries that brought intense, high-magnitude monsoons interspersed with decades-long drought. Evidence of this severe climatic instability is found in a seven-and-a-half century tree-ring record from tropical southern Vietnam. The climatic instability at the time of Angkor’s demise coincides with the abrupt transition from wetter, La Niña-like conditions over Indochina during the Medieval Warm Period to the more drought-dominated climate of the Little Ice Age, when El Niño appears to have dominated and the ITCZ migrated nearly five degrees southward. As this transition neared, Angkor was hit by the double impact of high-magnitude rains and crippling droughts, the former causing damage to water management infrastructure and the latter decreasing agricultural productivity. The Khmer state at Angkor was built on a human-engineered, artificial wetland fed by small rivers. The management of water was a massive undertaking, and the state potentially possessed the capacity to ride out drought, as it had done for the first half of the 13th century. Indeed, Angkor demonstrated just how powerful a water management system would be required and, conversely, how formidable a threat drought can be. The irony, then, is that extreme flooding destroyed Angkor’s water management capacity and removed a system that was designed to protect its population from climate anomalies.

scholarly journals Actual issues of assessment and regulation of surface water quality

2020 ◽  
Vol 163 ◽  
pp. 06012 ◽  
Author(s):  
Eugeny Venitsianov ◽  
Georgy Adzhienko ◽  
Sergey Yasinsky ◽  
Mariya Kozlova
Keyword(s):  
Water Management ◽  
Water Quality ◽  
Surface Water ◽  
Management System ◽  
Natural Waters ◽  
Surface Water Quality ◽  
Water Bodies ◽  
Water Management System ◽  
Current State ◽  
Current Water

The current state of surface water quality is stable, but it is characterized by a number of problems that collectively call into question the effectiveness of the current water management system in the country. Over a long period of time, the volume of pollutants entering the uncontrolled, mainly diffuse, runoff to water bodies determines the unsatisfactory quality of natural waters and the poor environmental condition of water bodies. This is a consequence of the imperfection of the current water management system.

The Water in the Royal Monastery of Santa Maria De Poblet, Tarragona, Spain

2007 ◽  
Vol 7 (1) ◽  
pp. 261-267
Author(s):  
J.L. De la Peña ◽  
M. De la Peña ◽  
M. Salgot ◽  
Ll. Torcal
Keyword(s):  
Water Management ◽  
Water Scarcity ◽  
Management System ◽  
Integrated Water Management ◽  
Water Management System ◽  
Santa Maria ◽  
Semiarid Conditions

The history and water-related features in the Poblet Cistercian Monastery, located in Tarragona province, Spain are described. The study is undertaken with the main purpose of obtaining data for the establishment of an integrated water management system inside the walls of the abbey, which is suffering water scarcity due to increasing demands and the prevalent semiarid conditions.

The Pre-Hispanic Maya Reservoir System at Kinal, Peten, Guatemala

1994 ◽  
Vol 5 (1) ◽  
pp. 97-106 ◽  
Author(s):  
Vernon L. Scarborough ◽  
Robert P. Connolly ◽  
Steven P. Ross
Keyword(s):  
Water Management ◽  
Management System ◽  
Water Sources ◽  
Dry Season ◽  
Water Management System ◽  
Reservoir System ◽  
System Characteristic ◽  
Catchment Areas ◽  
Lowland Maya

AbstractThe southern Lowland Maya hilltop center of Kinal is shown to be a human-modified watershed. The broad paved surfaces of the elevated central precinct acted as runoff-catchment areas directing precipitation into gravity-fed channels and reservoirs. In a geographical zone affected by an extended dry season and away from permanent water sources, Kinal demonstrates the components of a rainfall-dependent water-management system characteristic of other large sites in the region.

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