نتایج جستجو برای: forest typology changing

تعداد نتایج: 260569  

Journal: :جنگل و فرآورده های چوب 0
مریم مرادنژادی دانشجوی کارشناسی ‏ ارشد مهندسی جنگل، دانشکدة منابع طبیعی دانشگاه تهران، کرج، ایران مقداد جورغلامی دانشیار گروه جنگل داری و اقتصاد جنگل، دانشکدة منابع طبیعی دانشگاه تهران، کرج، ایران آرش ملکیان استادیار گروه احیای مناطق خشک و کوهستانی، دانشکدة منابع طبیعی دانشگاه تهران، کرج، ایران

forest cover is one of the most effective factors in reducing flooding in northern iran, so that in recent years the destruction, land use changing and uncontrolled harvesting of forest areas, has greatly increased the number and magnitude of floods. so far, there have been few studies on forest hydrology in iran, particularly the northern hyrcanian forests. this study examines the impact of a ...

2013
Gareth J Hollands Ian Shemilt Theresa M Marteau Susan A Jebb Michael P Kelly Ryota Nakamura Marc Suhrcke David Ogilvie

BACKGROUND The idea that behaviour can be influenced at population level by altering the environments within which people make choices (choice architecture) has gained traction in policy circles. However, empirical evidence to support this idea is limited, especially its application to changing health behaviour. We propose an evidence-based definition and typology of choice architecture interve...

2013
Kathie Swift

Natural disturbance processes are affected by both forest management and climate change. The resulting shifts in natural disturbance processes can have profound impact on the secondary successional pathways of British Columbia forest types (Ran & Swift 2013). Building an understanding of how these systems work and their potential changes over time and space is important since many forest manage...

2014
Fabián B Gálvez Andrew T Hudak John C Byrne Nicholas L Crookston Robert F Keefe

BACKGROUND Forest resources supply a wide range of environmental services like mitigation of increasing levels of atmospheric carbon dioxide (CO2). As climate is changing, forest managers have added pressure to obtain forest resources by following stand management alternatives that are biologically sustainable and economically profitable. The goal of this study is to project the effect of typic...

Journal: :Memorias do Instituto Oswaldo Cruz 2010
Helmut Kloos Rodrigo Correa-Oliveira Dener Carlos dos Reis Ed Wilson Rodrigues Luciana Alves Silveira Monteiro Andrea Gazzinelli

This paper examines recent developments in migration studies. It reviews literature related to the potential role of internal population movement in the occurrence of schistosomiasis in Brazil and modifies Prothero's typology of population movement for use in Brazil. This modified classification system may contribute to a better understanding of schistosome transmission as well as improved rese...

2011
Kristin Braa Terje Aksel Sanner

The paper offers a reference typology for large scale mHealth solutions in lowresource contexts. The proposed typology is produced through action research engagement with various mHealth initiatives within primary health care; including one fully deployed large-scale solution, medium-sized pilot studies and projects currently being implemented. Our investigations are informed by theoretical ass...

2008
Michael J. Apps

Focusing primarily on boreal forest ecosystems, this talk examines the role of stand-replacing disturbances in a changing climate and poses the hypotheses that: 1) Present and near-term future carbon budgets at the forest scale are constrained by the historical and present disturbance regime; 2) Changes in these regimes due to global change has a larger near-term impact on boreal forest carbon ...

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