Results 111 to 120 of about 42,699 (178)
, 2007 The endemic pine, Pinus canariensis, forms one of the main forest ecosystems in the Canary Islands. In this archipelago, pine forest is a mosaic of natural stands (remnants of past forest overexploitation) and artificial stands planted from the 1940's ...
Adams +34 more
core +4 more sources
A preliminary assessment of the feasibility of deriving liquid and gaseous fuels from grown and waste organics [PDF]
The anticipated depletion of our resources of natural gas and petroleum in a few decades has caused a search for renewable sources of fuel. Among the possibilities is the chemical conversion of waste and grown organic matter into gaseous or liquid fuels.
Graham, R. W. +2 more
core +1 more source
Developing management plans for periurban degraded forests around Kinskasa (DRC) [PDF]
, 2011 The forests of the Democratic Republic of Congo are part of the second largest tropical forest in the world. Many of the rural population of this country are located nearby and live from them.
Dubiez, Emilien +3 more
core
Effect of Fertilization on the Performance of Adult Pinus pinea Trees
BiologyBackground: Pinus pinea L. (stone pine) produces pine nuts of high value. Its cultivation is carried out in forests and plantations, with intensive management techniques being studied to stimulate diameter growth, which is positively related to cone ...
Verónica Loewe-Muñoz +4 more
doaj +1 more source
FSC or Business as usual? Social impacts of forest certification in Cameroon [PDF]
, 2011 FSC or Business as usual? Social impacts of forest certification in Cameroon The paradigm of Sustainable Forest Management is central in the forestry laws enacted over the latest decades in the Congo Basin countries. However its implementation, and hence
Cerutti, Paolo Omar +2 more
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Forest@, 2006 This editorial stresses the need for a kind of silviculture that could address properly the profound changes in the wood market determined by the globalization of the economy and the most stringent environmental issues.
doaj
Assisted natural regeneration: a tool for degraded tropical forests [PDF]
, 2011 A major part of anthropic impacts on natural tropical forests in central Africa is related to unmanaged shifting agriculture and fuelwood extraction by local communities, mainly along access tracks (roads, rivers,...)and at the edge of forests.
Dubiez, Emilien +3 more
core
The Tropical managed Forests Observatory: a research network addressing the future of tropical logged forests [PDF]
, 2019 While attention to logging in the tropics has been increasing, studies on the long-term effects of silviculture on forest dynamics and ecology remain scare and spatially limited.
Sist, Plinio
core
'Quality' silviculture: everybody agree, but it is really applied?
Forest@, 2005 Some comments are made on the application of closed-to-nature silviculture in Italy.
doaj
All Results Journals: Biol, 2011 Pinyon-juniper woodlands are a dominant ecosystem in the American Southwest that have been increasing in density over the last century, generating concerns about the effects on wildlife habitat, livestock forage, and wildfire risk. We tested 16 treatment
Maria Irwin, Alex Finkral, John Bailey
doaj