نتایج جستجو برای: the ecological forest monitoring programs

تعداد نتایج: 16167887  

2000
P. VOS E. MEELIS

Environmental and nature management can not operate effectively without reliable information on changes in the environment and on the causes of those changes. Ecological monitoring can represent an important source of information. However, many operational monitoring programs are not very effective, i.e., not very useful for decision-making. We present a conceptual framework for the development...

2016
Mingxu Zhao Søren Brofeldt Qiaohong Li Jianchu Xu Finn Danielsen Simon Bjarke Lægaard Læssøe Michael Køie Poulsen Anna Gottlieb James Franklin Maxwell Ida Theilade

Biodiversity conservation is a required co-benefit of REDD+. Biodiversity monitoring is therefore needed, yet in most areas it will be constrained by limitations in the available human professional and financial resources. REDD+ programs that use forest plots for biomass monitoring may be able to take advantage of the same data for detecting changes in the tree diversity, using the richness and...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده علوم انسانی 1389

abstract poor reading comprehension can result in failure in using references, benefiting from professional gatherings and resources, keeping up with the growing body of knowledge in the virtual world of the internet, and failing to achieve in efl programs. the purpose of the present quasi-experimental study was to explore the effects of background knowledge and previewing narrative and expos...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم تربیتی و روانشناسی 1388

on- the-job training on of the most effective tools for managers to cope with the changing organizational environment. it grantess suitable services to customers, particularly in public service enterprises. if such training os goal oriented, planned systematically, and tailored to the employees, job content, then not only it could increase employees and organizational performance, but also it c...

2011
Miguel A. Veganzones Leónia C.S. Nunes Domingos M.M. Lopes Carmen Hernandez Manuel Graña

Forest-BGC is a well-known and widely-used general ecophysiological model of forest ecosystem processes for regional applications. It's used to simulate the annual hydrologic balance and the Net Primary Production (NPP) of forests. The net flux of carbon between the atmosphere and terrestrial vegetation can be expressed on an annual basis in terms of NPP. This way, NPP is a key variable for a w...

A Mashayekhan H Jalilvand M.R Gholami M.R Pourmajidian

This study focuses on the carrying capacity estimation for Darkesh forest in Northeast Iran. Four factors were used for estimating the carrying capacity including tourist flows, size of the area, optimum space available for each tourist, and visiting time. Results showed that the physical carrying capacity was 2727 ha or 165 visitors/day, while the real carrying capacity was 2719 ha or 132 visi...

2015
Sam W. Wood Lynda D. Prior Helen C. Stephens David M. J. S. Bowman Paul Adam

Tracking the response of forest ecosystems to climate change demands large (≥1 ha) monitoring plots that are repeatedly measured over long time frames and arranged across macro-ecological gradients. Continental scale networks of permanent forest plots have identified links between climate and carbon fluxes by monitoring trends in tree growth, mortality and recruitment. The relationship between ...

2007
H. Sbay J. Guillot P. Danthu D. Prat

accompanying forest species by nitrogen supply. The genus Alnus includes some fast-growing species adapted to various ecological situations (Martin, 1985). Genetic improvement programs are being developed to produce effective clonal varieties able to grow under various ecological conditions. Controlled hybridizations (intraspecific and interspecific) were carried out to obtain improved progenie...

Journal: :محیط شناسی 0
مجید مخدوم

six catchment areas of fars, where belong to bioclimatic zone of deciduous temperate forests of palearctic realm, first were . surveyed, and mapped (scale:1: 100,000). then, after ecological and socio economic data analysis and integration, the ecosystem map (mapping unit) of the area was depicted (makhdoum 1992). the ecological capability of catchment areas for agriculture, range management, f...

2016
Aerin L. Jacob Martin J. Lechowicz Colin A. Chapman

Ecological restoration of abandoned, formerly forested farmland can improve the delivery of ecosystem services and benefit biodiversity conservation. Restoration programs can involve removing isolated, non-native trees planted by farmers for fruit or wood. As such “legacy” trees can attract seed dispersers and create microclimates that help native seedlings to establish, removing them may actua...

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