Meteorological satellite data from 1982 to 1990 were used to identify areas of significant association between tropical Pacific sea surface temperature (SST) and remotely sensed normalized difference vegetation index (NDVI) anomalies, here taken as a surrogate for rainfall anomalies. During this period, large areas of arid and semi-arid Africa, Australia and South America experienced NDVI anoma...

The Siberian elm (Ulmus pumila L.) is one of the most commonly found tree species in arid areas of northeast Asia. To understand the morphological and physiological characteristics of Siberian elms in arid regions, we analyzed leaves from seven study sites (five arid or semi-arid and two mesic) in China, Mongolia and the Republic of Korea, which covered a wide range of average annual precipitat...

single storms are the most restore water at the water management especially in arid and semi arid. therefore, single storm estimation is the important step in risk management. this study, single storm estimated by gsdm model. so, the date used include: meteorological data, dem and water value in basin jahanbin. in the gsdm model should divide basin to two region smooth and rough, moisture adjus...

introduction various factors like climatic conditions, vegetation, soil properties, topography, time, plant residue quality and crop management strategies affect the decomposition rate of organic carbon (oc) and its residence time in soil. plant residue management concerns nutrients recycling, carbon recycling in ecosystems and the increasing co2 concentration in the atmosphere. plant residue d...

Abstract The imbalance between water supply and demand highlights the vulnerability of many people prospect an uncertain future for supply. This work aims to compare Urban Water Security Index (UWSI) with three other methodologies (percentage flow duration curve, Sustainability Indicator, accumulated data from Drought Monitor) municipality Guarabira, Paraíba, Brazil. results show security based...