This study evaluates the size frequency distribution of 11 trees and shrubs in the cloud forest in Wadi Garziz, southern Oman, in order to assess their current situation, which is affected by cutting, overgrazing and other constraints. A size class distribution and a vegetation structure analysis were applied in order to analyze the dynamics of this forest using census data from 51 plots select...

This paper reviews the relevant information from journal articles and other resources on the most important medicinal plants present in the desert of Wadi Araba in South-West Jordan including the pharmaceutical and indigenous knowledge research. Many of Wadi Araba plants are common in the deserts of other Arab countries such as Arab gulf countries, Morocco, Tunisia, Egypt, Palestine and Sudan a...

Balanites aegyptiaca is a naturally grown desert plant at some radioactive places in Wadi El-Gemal area, Southeastern Desert. The aim of the present study was to highlight on the B. aegyptiaca species grown naturally at radioactive places in Wadi El-Gemal area (fruit part) on the ability of using the fruit in some biomedical application (glucose, cholesterol, triglycerides, HDL-cholesterol, LDL...

Profiles of some trace elements (Fe Mn, Zn, Cu, pb and Cd) were detected in saline water and surficial sediment of Wadi El-Natrun depression lakes. The trace elements concentrations largely indicate the influence of weathering of terrigenous sources on land. The order of the studied trace elements in brine lakes of Wadi El-Natrun from high to low concentrations are Mn > Pb > Fe > Zn > Cu > Cd a...

Wadi El Raiyan is a great depression located southwest of Cairo in the Western Desert of Egypt. Lake Qarun, located north of the study area, is a closed basin with a high evaporation rate. The source of water in the lake is agricultural and municipal drainage from the El Faiyum province. In 1973, Wadi El Raiyan was connected with the agricultural wastewater drainage system of the Faiyum provinc...

The distribution and abundance of plant species are strongly linked to the physical environmental and thus to anthropogenic disturbances. Changes in desert vegetation, in particular, can have drastic impacts on human livelihoods in these areas as ecosystem services may be affected (Dubroeucq and Livenais 2004; Klintenberg et al. 2007; Käyhkö et al. 2011; Rohde and Hoffman 2012). The Wadi Allaqi...

_________________________________________________________________ Complex social problems modeled by multi-agent systems have very large parameter and model space. The problem of how to model, validate, detect, and plan for the event of bioterrorism is one of the these, as it requires faithful modeling of dynamic signal (bioattack event) from complex dynamic noise (normal disease outbreaks and ...

Socio-technical problems, such as how smallpox outbreaks would spread in and affect modern societies, often have complex interrelated parts that defy simple mathematical analyses. A promising toolkit to solve these problems is large-scale multi-agent models, whose subsets with stochastic and knowledge-intensive networked interactions are social agent models. The value of these models and their ...

Hafar Al Batin liegt in der Ostprovinz Saudi-Arabiens, ca. 70 km südlich der Grenze nach Kuwait und Irak und ca. 200 km im Landesinneren. Die Stadt hat rund 400.000 Einwohner und erstreckt sich im und entlang des Wadi al Batin. Dieses Wadi ist das größte der arabischen Halbinsel und entwässert ein Gebiet von rund 60.000 km, was der 1,5 fachen Fläche der Schweiz entspricht. Zudem münden in Hafar...

The paper reports the first results of the EU funded Project WADI (Sustainability of European Irrigated Agriculture under Water Directive and Agenda 2000). The objective of the WADI project is to evaluate the economic, social and environmental sustainability of European irrigated farming under different scenarios concerning water policy and the Common Agricultural Policy. The methodology relies...