The status of renewable energy in Iran and the world

Due to the development of human societies, growing demand for energy sources, and the challenge of shortage or lack of them, industrial developed countries and developing countries have begun many studies on renewable energy sources in nature, especially solar energy, wind, waves, geothermal, hydro, biomass, etc. Moreover, by using these energy sources, some problems such […]

Autecology of Nepeta asterotricha medicinal plant in center of Iran (Case study: Yazd Province)

The aim of this study was to determine autecological background of Nepeta asterotricha that is a rare endemic medicinal plant distributed in Iran. Site characteristics such as topography, climate, soil, and accompanied plant species were determined. Sampling was done in two different areas and the species phenology, root system, and their presence conditions were examined […]

Ecological characteristics of Panicum turgidum in hormozgan province

Panicum turgidum is one of the most important species of Hormozgan coastal rangelands, playing an important role in terms of soil conservation and forage production. This research was conducted in 2011 to investigate the ecological characteristics of Panicum turgidum in Hormozgan. In this research, the distribution map of the species was prepared initially and then […]

Estimation of carbon sequestration and micronutrient in oak high forest soils

The main challenge of modern world, especially in arid and semi- arid regions, is climate warming due to green house gases. With regard to the role of forests in decreasing green house gases (by means of carbon sequestration), this study was done about oak high forests in Dalab region of Ilam province. 30 soil samples […]

Annual ring analysis of persian oak (Quercus Brantii) to determine periods of stress and tensions on Zagros Forests (case study: forests of Ilam County)

Goal of this study was to analyze relationships between the annual variability of Persian Oak (Quercus Brantii) tree-ring chronologies and the variability of the main climatic parameters in Zagros forests of Iran. In order to conduct this research, 17 annual ring diskettes of 17 Persian Oak tree collars, in CheghaSabz District of Ilam County, were […]

Genetic erosion: assessment of neglected and underutilized crop genotypes in South Western Kenya

The loss of Neglected and Underutilized Species (NUS) of crop results in reduction of the genetic base of the remaining varieties that may have a consequence upon changing environmental and ecological conditions. There is therefore, an urgent need to collect, document, characterize, conserve and utilize the traditional crops and formulate policies that will protect them […]

Estimation above ground biomass by using a diameter and density parameters (case study: district one of Darabkola forest)

Vegetation biomass is a crucial ecological variable for understanding the evolution and potential future changes of the climate system and is a larger global store of carbon than the atmosphere. One of the issues of major global concern is the increase in atmospheric carbon dioxide and its potential to change world climate. The study area […]