نتایج جستجو برای: forest range

تعداد نتایج: 766089  

2013
Anamika Chauhan Rahul Chauhan Sunil Semwal

Wireless sensor network have a broad range of applications in the category of environmental monitoring. In this paper, the problem of forest fire is considered and a comprehensive framework is proposed for the use of wireless sensor networks for real-time forest fire detection and monitoring. The wireless sensor network unlike that of traditional approaches, can easily forecast forest fires bef...

Journal: :ecopersia 0
javad mirzaei assistant professor, faculty of agriculture, university of ilam, ilam, iran mostafa moradi assistant professor, faculty of natural resources and environment, behbahan khatam al-anbia university of technology, behbahan, iran farzad seyedi m.sc. in environmental sciences, ilam provincial directorate of environmental protection, ilam, iran

carbon sequestration in soil, leaf and litter of three tree species, viz. eucalyptuscamaldulensis, prosopisjuliflora and ziziphus spina-christi, plantation was investigated in the dehloran city, iran. results showed that the amount of sequestered c in leaf, litter and soil was significantly different among these species. the highest amount of sequestrated c was in leaf and the lowest amount in ...

Journal: :Journal of environmental management 2013
Nilesh Timilsina Francisco J Escobedo Wendell P Cropper Amr Abd-Elrahman Thomas J Brandeis Sonia Delphin Samuel Lambert

Spatial analyses of ecosystem system services that are directly relevant to both forest management decision making and conservation in the subtropics are rare. Also, frameworks that identify and map carbon stocks and corresponding forest management drivers using available regional, national, and international-level forest inventory datasets could provide insights into key forest structural char...

2007
MELISSA A. MOYER J. WALTER MCCOWN MADAN K. OLI

The manner in which space is utilized by animals is influenced by several factors, including habitat quality and the distribution and abundance of resources. We used 4 years (2000–2003) of radiotelemetry data to investigate the space-use pattern of female Florida black bears (Ursus americanus floridanus) in the Ocala National Forest and an adjacent residential community of Lynne, north-central ...

2007
Todd A. Schroeder Warren B. Cohen Zhiqiang Yang

The rate at which forest vegetation re-establishes dominance after clearcut harvesting can impact many ecological processes, such as erosion/ sedimentation, nutrient and water cycling, carbon storage potential, wildlife habitat, and trophic interactions. Although knowing a forest stand’s current state of succession is useful, a clearer understanding of the impact forest harvesting has on the af...

Mohammad kazem Parsapour Yousef Askari, Zahra Hosseni

To modeling of Suitability Iranian Oak site to establish coppice regenerations, chahartagh forest reserve, Ardal region, chaharmehal and Bakhtiari Province, southern Zagros forest, and southwest Iranian state was selected. To modeling Suitability Iranian Oak used the physiographic element, soil depth, climatology and distance from village selected. To this study used the raster formats by pixel...

Vegetation in any landscape reflects its health condition. Monitoring land use change and land cover plays a key role in environmental planning and management. Mazandaran province has always been considered by tourists due to its high tourism potential and consequently the vegetation, especially the forest, has been damaged. In this study, vegetation Contiguity and integrity in Mazandaran using...

2004

The Water Erosion Prediction Project (WEPP) is a physically based erosion model for applications to dryland and irrigated agriculture, rangeland, and forests. U.S. Forest Service (USFS) experience showed that WEPP was not being adapted because of the difficulty in building files describing the input conditions in the existing interfaces. To address this difficulty, a suite of Internet interface...

Journal: :Theoretical population biology 1998
H Lischke T J Löffler A Fischlin

Individual based, stochastic forest patch models have the potential to realistically describe forest dynamics. However, they are mathematically intransparent and need long computing times. We simplified such a forest patch model by aggregating the individual trees on many patches to height-structured tree populations with theoretical random dispersions over the whole simulated forest area. The ...

Journal: :Ecological Informatics 2007
Deana D. Pennington

Article history: Received 1 November 2006 Received in revised form 29 March 2007 Accepted 17 April 2007 Exploratorymodeling is an approach used when process and/or parameter uncertainties are such that modeling attempts at realistic prediction are not appropriate. Exploratory modeling makes use of computational experimentation to test how varying model scenarios drive model outcome. The goal of...

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