نتایج جستجو برای: social and especially water resources

تعداد نتایج: 17066967  

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2013
Harry Verhoeven

As key economic, ecological and demographic trends converge to reshape Africa and its relationship with the outside world, a new politics is emerging in the twenty-first century around the water-food-energy nexus, which is central to the continent's relevance in the global economy. On the one hand, Malthusian anxieties are proliferating; pessimists link population growth and growing water scarc...

2007
Barbara van Koppen Mark Giordano John Butterworth

Water resources management reform in developing countries has tended to overlook community-based water laws, which govern self-help water development and management by large proportions, if not the majority, of citizens: rural, small-scale water users, including poor women and men. In an attempt to fill this gap, global experts on community-based water law and its interface with public sector i...

2010
M. Kannan S. Prabhakaran P. Ramachandran

Rainfall is important for food production plan, water resource management and all activity plans in the nature. The occurrence of prolonged dry period or heavy rain at the critical stages of the crop growth and development may lead to significant reduce crop yield. India is an agricultural country and its economy is largely based upon crop productivity. Thus rainfall prediction becomes a signif...

2017
Gottfried Mandlburger

Introduction Knowledge about the bathymetry of water bodies is of high economic, social, and ecologic importance. Whereas charting bathymetry for navigational purposes is indispensable for ensuring safe shipping traffic, monitoring the quantity and quality of fresh water resources gains more and more importance, especially in the light of climate change. In the European context three water rela...

2016
Robert Hahn Robert D. Metcalfe Michael K. Price

We explore Tinbergen’s fundamental insight that policymakers need at least as many policy instruments as targets. We extend this idea using a large natural field experiment in water resource management. We use social comparisons and loss-framed messages to help achieve two goals of our partner utility: getting consumers to purchase drought-resistant plants and reducing water use. Our results sh...

2015
Abdulrahman Al-Fawwaz Abdullah Ahmed

The study concludes that the reality of food security in the Arab World is unstable and fluctuated; there is no self-sufficiency to cover the needs of the Arab states. In addition, food security is connected with the power of water security, as all water resources come from non-Arab states. Water shortage may lead to the shortage of food for Arab states (famines), poverty and divisions. Therefo...

Abdolrasool Divsallar Hadi Abolfathi Mehrdad Nazeri

Distribution and allocation of resources is affected by factors such as values, norms, social stratifications, ideology, information, coercion, political challenges, and even external factors. This finding means that there is always a fundamental tendency to redirect resources toward political goals instead of public interests and development. Because the resource structure is strongly influenc...

2017
Charles A. Osunla Anthony I. Okoh

Members of the Vibrio genus are autochthonous inhabitants of aquatic environments and play vital roles in sustaining the aquatic milieu. The genus comprises about 100 species, which are mostly of marine or freshwater origin, and their classification is frequently updated due to the continuous discovery of novel species. The main route of transmission of Vibrio pathogens to man is through drinki...

ژورنال: علوم آب و خاک 2016
آلبوعلی, علی, صادقی, سیدهادی, قضاوی, رضا,

Nowadays, the increasing population and water demand in various sectors of agriculture, industry, drinking and sanitation has brought about tremendous pressure on groundwater resources. Changes in groundwater quality and salinity of the water resources are currently major threats to development, especially in the dry and too dry lands. The aim of this study is evaluation of the trend of changes...

Aims :Water is considered as one of the main sources for development in Iran, especially in the margin of desert. Its lack is one of the main limiting factors in the life of a society and the development of economic activities. Regarding the fundamental problems in urban water supply in Yazd province, combined management of water supply and demand in order to balance the future supply and dema...

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