scholarly journals Spatiotemporal Changes in Evapotranspiration from an Overexploited Water Resources Basin in Arid Northern China and Their Implications for Ecosystem Management

2019 ◽  
Vol 11 (2) ◽  
pp. 445 ◽  
Author(s):  
Jianfu Liu ◽  
Yujiu Xiong ◽  
Jianlin Tian ◽  
Zhihang Tan
Keyword(s):  
Resource Management ◽  
Water Resource ◽  
Water Resource Management ◽  
Water Distribution ◽  
Northern China ◽  
Northwest China ◽  
Mean Value ◽  
Limiting Factor ◽  
Human Society ◽  
Shiyang River Basin

Evapotranspiration (ET), including evaporation from soil and water surfaces and transpiration from vegetation, influences water distribution in the soil-plant-atmosphere continuum, especially in arid areas where water is a key limiting factor. Therefore, understanding the spatiotemporal dynamics of ET, including its two components of soil evaporation (Es) and vegetation transpiration (Ec), can be useful for water resource management and ecological restoration in arid regions. Based on ET data from 2002 to 2012, the spatiotemporal variations in ET were evaluated in the Shiyang River Basin in arid Northwest China. The results showed the following: (1) spatially, ET decreased from upstream of the Qilian Mountains to the middle and downstream, with a mean annual value of 316 mm; (2) temporally, ET showed a single peak curve throughout the year, with the highest value occurring in summer; (3) ET showed a downward trend (from 350 to 265 mm) before 2009 and thereafter increased (from 265 to 345 mm); and (4) water use efficiency, indicated by the ratio of Ec to ET, was low in the cropland, with a mean value of 50.9%. Further analysis indicates that decreases in ET are mainly caused by vegetation decreases; in contrast, ecological restriction measures and strict water resource management policies in the middle reaches of the basin led to ET increases. It is concluded that understanding ET and its two components can elucidate the connections between water and human society.

Participatory Water Resource Management in the Bhutan Himalayan Foothill Environment of Baksa District, Assam

2020 ◽  
Vol 16 (1) ◽  
pp. 62-80 ◽  
Author(s):  
Sourav Saha ◽  
Nityananda Deka ◽  
Abani Kumar Bhagabati
Keyword(s):  
Resource Management ◽  
Community Participation ◽  
Water Resource ◽  
Water Resource Management ◽  
Water Distribution ◽  
Management Practices ◽  
Stream Water ◽  
Traditional System ◽  
Secondary Sources ◽  
Set Up

Participatory water resource management assumes great significance in the changing context of fresh water availability and use. The forces of market economy, in most cases, have transformed the rural social scenario in such a way that community participation in resource management has become almost a far cry. But the Himalayan foothill area in Assam sets a good example of management and sharing of water resources by the communities living in the area in eco-friendly and socially just ways. This study is an attempt to analyse the traditional management practices called dong-bandh system evolved by the local people to harvest and share the stream water for agricultural and domestic purposes. Based on data collected from secondary sources and generated through primary survey, the study focuses on the organizational set-up of the community participation, water distribution policies, conflict resolution and perception of the people on dong–bandh governance. The challenges faced by this traditional system during the recent period have also been discussed.

Catchment surveillance for water resource management

Waterlines ◽  
1997 ◽  
Vol 16 (1) ◽  
pp. 23-25
Author(s):  
Barry Lloyd ◽  
Teresa Thorpe
Keyword(s):  
Resource Management ◽  
Water Resource ◽  
Water Resource Management

Water Resources Management in the Semi-Arid Central Valley of California

1987 ◽  
Vol 19 (9) ◽  
pp. 97-106
Author(s):  
J. J. Vasconcelos
Keyword(s):  
Resource Management ◽  
Ground Water ◽  
Water Resource ◽  
Water Resource Management ◽  
Arid Regions ◽  
Central Valley ◽  
The United States ◽  
Policy Makers ◽  
Ground Water Resource ◽  
Semi Arid

Hater resource managers in semi-arid regions are faced with some unique problems. The wide variations in precipitation and stream flows in semi-arid regions increase man's dependence on the ground water resource for an ample and reliable supply of water. Proper management of the ground water resource is absolutely essential to the economic well being of semi-arid regions. Historians have discovered the remains of vanished advanced civilizations based on irrigated agriculture which were ignorant of the importance of proper ground water resource management. In the United States a great deal of effort is presently being expended in the study and control of toxic discharges to the ground water resource. What many public policy makers fail to understand is that the potential loss to society resulting from the mineralization of the ground water resource is potentially much greater than the loss caused by toxic wastes discharges, particularly in developing countries. Appropriations for ground water resource management studies in developed countries such as the United States are presently much less than those for toxic wastes management and should be increased. It is the reponsibility of the water resource professional to emphasize to public policy makers the importance of ground water resource management. Applications of ground water resource management models in the semi-arid Central Valley of California are presented. The results demonstrate the need for proper ground water resource management practices in semi-arid regions and the use of ground water management models as a valuable tool for the water resource manager.

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