The Riacho Fundo qualitative model, a product of the Brazilian case study run by the Univeristy of Brasilia in Naturnet project, was evaluated by stakeholders. The Riacho Fundo basin is located near Brasilia, the new capital, and changes in land use are held responsible for major changes in the area, including deforestation, erosion, loss of biodiversity and water resources, and decrease in eco...

The study of Fanta et al. (2001) investigated the variability of annual river flow of the southern African region. The assessment results may be useful for practitioners to improve water resources planning and management in this region in the future. However, the methodology used by the authors is questionable and the objective of the present paper is to point out some drawbacks in that methodo...

© 2013 González-Sosa et al., licensee InTech. This is an open access chapter distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Effect of Water Resources in the Queretaro River: Climate Analysis and Other C...

The pressure on water resources caused by accelerated urbanization, the inadequate management and disposal of wastewater and the implementation of sophisticated treatment systems which sometimes with low efficiency and coverage are some of the problems to be solved with alternative and innovative strategies that be in harmony with the recent trends on water management. One of these strategies i...

Assessing and managing water use is crucial for supporting sustainable river basin management and regional development. The first consistent and comprehensive assessment of sectorial water use in the Pearl River Delta (PRD) is presented by analysing homogenized annual water use data from 2000 to 2010 in relation to socio economic statistics for the same period. An abstraction of water use, usin...

Biological invasion is one of the most threatening factors for biodiversity conservation. Lacking information on alien species in certain regions of the world hampers a balanced understanding of invasion processes and efficient data exchange among stakeholders. Current knowledge gaps are in need of urgent concern. We therefore conducted a review on alien animals in Xinjiang, an unknown region o...

One of humanity's major challenges of the 21st century will be meeting future food demands on an increasingly resource constrained-planet. Global food production will have to rise by 70 percent between 2000 and 2050 to meet effective demand which poses major challenges to food production systems. Doing so without compromising environmental integrity is an even greater challenge. This study look...

Regulatory agencies and citizens have placed great emphasis on sustainability of natural resources. Individuals involved in animal husbandry should understand the basic components associated with air and water quality issues. An increase in regulations governing land, air, and water resources increases the need for educators, researchers, and producers to realize impacts of current and potentia...

We propose a mathematical nonlinear model for the Tiwanaku civilization collapse based on the assumption, supported by archeological data, that a drought caused a lack of the main resource, water. We evaluate the parameter of our model using archaeological data. According to our numerical simulation the population core should have decreased from 45,000 to 2000 inhabitants due to lake surface co...

Population growth is in general constrained by food production, which in turn depends on the access to water resources. At a country level, some populations use more water than they control because of their ability to import food and the virtual water required for its production. Here, we investigate the dependence of demographic growth on available water resources for exporting and importing n...