integrated assessment of water resources systems, as one of the iwrm basic steps, is the most important stage in the process of planning and implementing water resources management. water accounting frameworks have been introduced for organizing water data and combining them with economic data to come up with effective strategies towards greater productivity with maintaining or improving enviro...

0307010. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the agencies. ABSTRACT In contrast to conventional multicriteria decision aids we take the point of view of environmetrics: Let first the data speak, and then let us derive a ranking. In the present paper we introduce an improved "...

The populations of West African countries continue to grow at rates exceeding three per cent per year. The international food price spike of 2008 focused attention on the risks to national security and livelihoods associated with importing significant quantities of food; and government and donor investment strategies now focus on ensuring national food security. Since rice is a key staple crop ...

As demand on freshwater resources increases, managers are increasingly tasked with identifying water withdrawal, storage, and management strategies that minimize impacts on aquatic species. Identifying critical features of the flow regime that sustain particular ecological processes can be difficult due to site and speciesspecific characteristics. Our goal was to simulate tradeoffs between diff...

introduction: lack of water and deterioration in the quality of soil and water resources are considered to be the prime cause of reduced crop yield in arid and semi-arid regions ‘more crop per drop’ by trickle irrigation, deficit irrigation, and uncommon water are the best strategies for mitigating water crises. different irrigation management strategies are needed to increase production in dif...

in recognition of the value and limitations of available water resources in agriculture and the occurrence of periodic drought in iran, water conservation and optimal usage of available water is essential. the main objective of this study was to optimize field water management and cropping patterns using deficit irrigation. the effect of reducing water consumption on different growth stages usi...

Precisely management of water quality in urban rivers is of significant and water environmental capacity provide a useful tool. This study presented a water quality analysis simulation program model-based approach for dynamical load reduction in Ashi River, highly contaminated tributaries of Songhua River, China. The actual and surplus dynamic environmental capacity of CODCr and NH<s...