Vahid Hosseini

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Verified

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• PhD
• Professor (Assistant) at University of Kurdistan

Fire is one of the most important natural disturbances in forest ecosystems, and it has significant effects on soil properties depending on its severity and duration. The aim of this study was to compare the properties of forest soil beneath Iranian oak (Quercus brantii Lindl.) on northern and southern slopes that were heated under laboratory condi...

Introduction A large part of forest and woodland ecosystems in Iran have been located in arid and semi-arid areas which low level of soil organic carbon (SOC) is considered as one of the main problems. Millions of trees together that make forest ecosystems, play a major role in carbon sequestration and can sequester it in the form of biomass, abov...

Soil properties can be greatly affected by both topography and fire. Topography is one of the factors affecting the fire intensity. The aim of this study was to compare the effect of fire on chemical soil properties at top and toe of hillside slope. In order to sampling, one week after fire, three transects were installed with a length of approxima...

Fire ash contains essential nutrients that play an important role in the forest by changing soil properties. The goal of this study was to investigate the physical and chemical properties of ash from burning litter and branches of Aleppo oak (Quercus infectoria Oliv.). Litter and dried branches with a diameter of less than 2 and 2-5 cm were collect...

Sacred groves in northern Zagros forest have almost remained undisturbed, due to their social and religious values for local people. In this study, we attentively investigated and compared soil properties in these stands, as stands that show the less disturbed Zagros oak forests, with surrounding oak woodlands that have been pollarded and utilized...

In the present study, physical, chemical, and biological soil properties in pure plantation stands (21 years old) of Alnus subcordata, Populus deltoides, Cupressus sempervirens, and a mixed stand of Alnus subcordata-Populus caspica at Zaghmarz area, Neka city (north of Iran), were studied. In each stand, 10 plots of 400 m2 were selected and in each...

The earthworm is considered as one of the most important ecological indicators in assessing the soil quality of the soil ecosystems. The aim of this research was the investigation of forest land-use changes on the earthworm’s density and biomass related to the soil properties. For this purpose, 40 soil profile and earthworm samples were randomly ta...

The consequence of land-use change from forest to agriculture and other uses has become one of the world’s greatest concerns. The soil, one of the most important components of forests and containing all the required plant nutrients as soluble ions, is highly impacted by these changes. Because vast areas of the Zagros forests in western Iran have ch...

Introduction: Fires are natural processes in many ecosystems, constituting a natural, even vital, component of forests. Fire can change the soil properties depending on its severity. In semi-arid regions, the effects of fire are more vigorous in comparison with other regions. In these regions, forests restoration is much more difficult especially i...

Although livestock grazing is known as a historic disturbance in forest ecosystems, but we still need more understanding about how it can affect soil properties. The purpose of this study was to investigate the effect of grazing intensity and type of livestock on the physical and chemical properties of soil in the Armardeh forests, Baneh County in...

Forest fire and leaf litter is one of the effective factors influencing soil nutrient. Fire intensity and duration can affect the properties of ash and surface soil. The aim of this study was to investigate the physio- chemical properties of ash after the heating of Aleppo oak (Quercus infectoria Oliv.) litter at various temperatures under laborato...

For analyzing the effects of forest litter and slope aspect on soil properties eight soil samples were collected at a depth of 0–10 cm near (i.e., beneath the crown) and away from (i.e., not influenced by crown) five Persian turpentine trees each on a north and a south slope at the same elevation in a Zagros forest, Iran. The litter beneath tree cr...

Wildfire leads to accumulation of ash in the surface soil, which it can have effect on thebiochemical cycle of elements in the ecosystem. The goal of this study was to investigate some ash chemical properties of wildfire in litter of the Brant`s oak (Quercus brantii Lindl.) andvegetation of forest floor and determination gradiant from beneath of tr...

Trees crown can be regarded as main factor contributing to the conservation and support of soil in many ecosystems including semiarid forests in Zagross. The aim of this study was to find out the effect of tree crown of pictachio (Pistacia atlantica Desf) on N, OC, P, pH, EC and the texture of the soil. Soil samples were collected in and outside th...

Background and objectives: Some forest management, in addition to direct impact on soil, will also affect indirectly soil physical and chemical properties by changing or degrading vegetation cover. Accordingly, forest reserves are most common protection systems in the Iran forest ecosystems management that can affect physio-chemical properties of...

Considering the importance of Zagros forests in terms of water and soil conservation, information on the relationship between environmental factors and soil quality can be very effective for forest managers. The aim of this study was to find the relationship between the aspect and some chemical properties of soil in the Armardeh forest in Baneh Cou...

Soil is one of the important components of the forest ecosystem and getting knowledge about the chemical properties of soil can be a good guide for analyzing of forest ecosystem health. In this research, soil samples were taken during a year over four times at intervals of three months (March, June, September and December) in order to evaluate the...

Livestock grazing is a major driver of ecosystem functions in drylands and would be expected to influence soil biota such as termites. We examined changes in soil chemistry and plant community composition on mounds constructed by the subterranean termite Anacanthotermes ahngerianus along a gradient in grazing intensity in an arid steppe in north-ea...

The Hyrcanian forests in the Northern Iran are originally poor of coniferous and are considered as a refugium of temperate broad-leaved trees during the Quaternary glaciations. In this study mass loss and nutrients dynamic of Norway spruce needles when combined with oriental beech litter was investigated in a 50-year plantation of pure Norway spruc...

Northern Zagros forests are one of the most important ecosystems in Iran from ecological and socio-economic points of view. This study was done to determine the most important gradients affecting on plant species distribution by using ordination methods. Environmental variables including inclination, slope aspect, elevation, litter depth, bare soil...

This study shows that functional grouping of the species based on nitrogen fixing ability along with initial leaf litter C/P, C/N, P and N could help us predicting leaf litter decomposition rate. Grouping species into functional groups is a good approach to understanding exotic plants impacts on ecosystem functioning in their new environment. One k...

Soil is one of the most important components in forests and distinguishing soil types and soil capability are first steps in forest management. The main aim of this study was to determine relationship between slope aspect and position, and chemical properties of the soil. Soil sampling was done in Tang-e-Dalab in Ilam province which is a part of so...

The forests located in Kurdistan province, in particular the Marivan forests, are assessed to be substantially vulnerable to wildfire hazard due to the Mediterranean climatic regime within the region. A research was designed here to explore the effects of periodic wildfires on soil nutrient. A total number of 40 soil samples were collected, consist...

Soil communities exert strong influences on the processing of organic matter and nutrients. Plantations of trees, especially of nitrogen fixing ones, may affect the soil macrofauna through litter quality and quantity. This study was conducted in a randomized block design with three blocks consisting of Populus euphratica, Eucalyptus camaldulensis,...

Fire is natural feature of most of ecosystems, including Mediterranean region and the site study in this research. In order to evaluate effect of fire intensity on dynamic of organic carbon, nitrogen and phosphorus of soil, 56 samples were selected from two depths (0-5 and 5-15 cm) in two areas of burned and unburned. Then, some unburned soil sampl...

In arid and semi-arid ecosystems isolated trees have an important effect on soil properties and could determine the structure of the soil fauna communities and herbaceous species under the tree which could influence these types of ecosystems. The aim of this study was to find out effect of tree canopy on the spatial distribution of soil nutrients (...

Populus euphratica forests in river floodplains in southwestern Iran are degraded heavily. Tree plantation is one method by which the restoration of these degraded sites would be possible. Trees are expected to influence soils through different mechanisms such as nutrition and nutrient return. This study was conducted in a randomized block design w...

In order to determine the rate of litter decomposition of Fagus orientalis at two beech stands, litters from Vaz and Asalem with different parent material were collected in autumn. Litters of each region, put in four vases for 357 d in laboratory conditions. Sampling was taken within 21 d. The nitrogen, carbon and phosphorus were measured in each i...

In order to determine the rate of litter decomposition of Alnus subcordata at two alder stands, litters from Vaz and Asalem with different parent material were collected in autumn. Litters of each region, put in four vases for 7 months in laboratory conditions. Sampling were taken within 21 days. Then nitrogen and carbon was measured in each interv...