Evapotranspiration is one of the most important hydrological variables in the context of water resources management. An attempt was made to understand and predict the dynamics of reference evapotranspiration from a nonlinear dynamical perspective in this study. The reference evapotranspiration data was calculated using the FAO Penman-Monteith equation with the observed daily meteorological data...

expect the government to do it for them." Through networks in professional societies, he notes, scientists could work in their local communities. He suggests that scientists help public education groups with materials and by volunteering to do some teaching. "The time and effort would be well worth it," he says, "because the public understanding of science is a priceless thing." Gary Ritchie (A...

In Algeria, liberalization reforms undertaken since the 1990s have resulted in negative effects on the development and management of irrigation schemes, as well as on the conditions of farmers. Reforms have been undertaken to improve the performance of irrigation schemes, such as the national plan of agricultural development (PNDA) in 2000 and the water pricing policy of 2005. However, after im...

Traded agricultural goods redistribute water, virtually, around the world to satisfy unmet demands while limiting excess water extraction in importing regions. However, gaps remain our understanding of how alternative international trade regimes may alter demands, locally and virtually. Here, we explore global savings virtual impacts such under reference low-carbon scenarios using an integrated...

This paper reviews the patterns of growth in agricultural production and land use existing in Asian countries and how they are affecting agricultural resources and food security. A comparative analysis of time series data from a variety of Asian countries is used to discern the past trends for food supply, agricultural resources and the growth of consumption base. Future trends of those indicat...