نتایج جستجو برای: forest policies

تعداد نتایج: 226168  

Journal: :Anais da Academia Brasileira de Ciencias 2008
Philip M Fearnside

Amazonian forest produces environmental services such as maintenance of biodiversity, water cycling and carbon stocks. These services have a much greater value to human society than do the timber, beef and other products that are obtained by destroying the forest. Yet institutional mechanisms are still lacking to transform the value of the standing forest into the foundation of an economy based...

Journal: :Journal of environmental management 2013
Rasoul Yousefpour Christian Temperli Harald Bugmann Che Elkin Marc Hanewinkel Henrik Meilby Jette Bredahl Jacobsen Bo Jellesmark Thorsen

We study climate uncertainty and how managers' beliefs about climate change develop and influence their decisions. We develop an approach for updating knowledge and beliefs based on the observation of forest and climate variables and illustrate its application for the adaptive management of an even-aged Norway spruce (Picea abies L. Karst) forest in the Black Forest, Germany. We simulated fores...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تحصیلات تکمیلی صنعتی کرمان - دانشکده برق و کامپیوتر 1390

عملکردهای زیستی پروتئین ها به واکنش های شیمیایی آنها با محیط پیرامون و سایر پروتئین ها بستگی دارد. به عبارت دیگر، ساختار سه بعدی و نحوه تاخوردن اجزای پروتئین ها در فضا، چگونگی این تعاملات را تعیین می کند. تشخیص صحیح الگوی تاخوردگی پروتئین با استفاده از اطلاعات استخراج شده از توالی آن، یکی از مسائل پیچیده و بحث برانگیز در زمینه بیوانفورماتیک می باشد. در این پایان نامه، سه روش نوین مبتنی بر الگور...

2015
Heather Keith David Lindenmayer Andrew Macintosh Brendan Mackey Paul Adam

Climate change mitigation benefits from the land sector are not being fully realised because of uncertainty and controversy about the role of native forest management. The dominant policy view, as stated in the IPCC's Fifth Assessment Report, is that sustainable forest harvesting yielding wood products, generates the largest mitigation benefit. We demonstrate that changing native forest managem...

2015
Juan Robalino Catalina Sandoval David N. Barton Adriana Chacon Alexander Pfaff

We estimate the effects on deforestation that have resulted from policy interactions between parks and payments and between park buffers and payments in Costa Rica between 2000 and 2005. We show that the characteristics of the areas where protected and unprotected lands are located differ significantly. Additionally, we find that land characteristics of each of the policies and of the places wh...

2013
Jianguo Liu Joanna Brodrick Shuxin Li

China’s forest cover has been increasing in the past three decades, which is in sharp contrast to rapid declines in other natural resources. Understanding the mechanisms of forest recovery and their effects is essential for sustaining forests in China and elsewhere. Some studies suggest that imports of forest products have contributed to the increase in forest cover of China and the decline in ...

2016
Anne Sofie Elberg Nielsen Thomas Hedemark Lundhede Jette Bredahl Jacobsen

Article history: Received 8 July 2015 Received in revised form 5 August 2016 Accepted 30 August 2016 Available online 8 September 2016 Stated preference studies eliciting welfare economic consequence of national policies, are often not considering the spatial variation in supply and demand. This spatial variation may however cause large distributional heterogeneity of policy changes. In this st...

Journal: :Ecological applications : a publication of the Ecological Society of America 2007
K Norman Johnson Pete Bettinger Jeffrey D Kline Thomas A Spies Marie Lennette Gary Lettman Brian Garber-Yonts Tad Larsen

Protecting biodiversity has become a major goal in managing coastal forests in the Pacific Northwest--an area in which human activities have had a significant influence on landscape change. A complex pattern of public and private forest ownership, combined with new regulations for each owner group, raises questions about how well and how efficiently these policies achieve their biodiversity goa...

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