نتایج جستجو برای: forest degradation

تعداد نتایج: 254568  

2015
Sébastien Boillat Corinna Stich Joan Bastide Michael Epprecht Andreas Heinimann

This study explores the relationships between forest cover change and the village resettlement and land planning policies implemented in Laos, which have led to the relocation of remote and dispersed populations into clustered villages with easier access to state services and market facilities. We used the Global Forest Cover Change (2000–2012) and the most recent Lao Agricultural Census (2011)...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2009
David P Edwards Felicity A Ansell Abdul H Ahmad Reuben Nilus Keith C Hamer

The recent advent of carbon crediting has led to a rapid rise in biosequestration projects that seek to remove carbon from the atmosphere through afforestation and forest rehabilitation. Such projects also present an important potential opportunity to reverse biodiversity losses resulting from deforestation and forest degradation, but the biodiversity benefits of different forms of biosequestra...

Journal: :international journal of agricultural science, research and technology in extension and education systems 2013
eneje n.c. onwubuya e.a. mbah e.n

the study examined prospects of selected forest fruits and vegetables in enugu north agricultural zone of enugu state, nigeria. structured interview schedule and focus group discussion were used to collect data from a sample of one hundred and twenty (120) respondents. data were analyzed using matrix rank ordering, percentage, mean scores and standard deviation. results of the study identified ...

2013
Izaya Numata Mark A. Cochrane

In recent decades, human development pressures have results in conversions of vast tracts of Amazonian tropical rain forests to agriculture and other human land uses. In addition to the loss of large forest cover, remaining forests are also fragmented into smaller habitats. Fragmented forests suffer several biological and ecological changes due to edge effects that can exacerbate regional fores...

2014
Witoon Purahong Danuta Kapturska Marek J. Pecyna Elke Schulz Michael Schloter François Buscot Martin Hofrichter Dirk Krüger

Leaf litter decomposition is the key ecological process that determines the sustainability of managed forest ecosystems, however very few studies hitherto have investigated this process with respect to silvicultural management practices. The aims of the present study were to investigate the effects of forest management practices on leaf litter decomposition rates, nutrient dynamics (C, N, Mg, K...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2009
Ashwini Chhatre Arun Agrawal

Forests provide multiple benefits at local to global scales. These include the global public good of carbon sequestration and local and national level contributions to livelihoods for more than half a billion users. Forest commons are a particularly important class of forests generating these multiple benefits. Institutional arrangements to govern forest commons are believed to substantially in...

2013
Charlene Watson Susana Mourato E. J. Milner-Gulland

The environmental integrity of a mechanism rewarding Reduced Emissions from Deforestation and Degradation (REDD) depends on appropriate accounting for emission reductions. Largely stemming from a lack of forest data in developing countries, emission reductions accounting contains substantial uncertainty as a result of forest carbon stock estimates, where the application of biome-averaged data o...

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