نتایج جستجو برای: forest stock

تعداد نتایج: 195367  

2008
Diane L. Haase

The demand for bigger, better, faster-growing seedlings has been ever-growing. As a result, forest seedling production is a continually evolving technology in reforestation. Evaluating seedling quality is crucial for understanding seedling development in the nursery, as well as subsequent field growth and survival. Stock quality, however, often is assessed inconsistently and on only a limited b...

Journal: :international journal of environmental research 0

land cover change constitutes one of main way of alteration of soil organic matter in both quantitative and qualitative terms. the goal of this study was to compare the carbon stock and the isotopic signature of the organic matter in the soil of areas with different land use, covered with forest and grass (pasture). the study area is located at sorocaba, sp, brazil. using un-deformed soil sampl...

2017
R. Leiterer J. Reiche O. Cartus M. Santoro C. Thiel M. Herold C. Schmullius

In terms of climate change analysis, information on large area forest cover distribution becomes increasingly important for studying terrestrial carbon cycle changes and its human impacts. Within the FOREST DRAGON 1 project large-area forest growing stock volume maps of Northeast and Southeast China based on ERS-1/2 tandem coherence data have been generated. For the validation of the largearea ...

Journal: :Carbon Balance and Management 2007
Georgii A Alexandrov

BACKGROUND Understanding the relationship between the age of a forest stand and its biomass is essential for managing the forest component of the global carbon cycle. Since biomass increases with stand age, postponing harvesting to the age of biological maturity may result in the formation of a large carbon sink. This article quantifies the carbon sequestration capacity of forests by suggesting...

2008
Sonja N. Oswalt Thomas J. Brandeis Christopher W. Woodall

Dead wood is a substantial carbon stock in terrestrial forest ecosystems and hence a critical component of global carbon cycles. Given the limited amounts of dead wood biomass and carbon stock information for Caribbean forests, our objectives were to: (1) describe the relative contribution of down woody materials (DWM) to carbon stocks on the island of St. John; (2) compare these contributions ...

2015
Rebecca Chaplin-Kramer Ivan Ramler Richard Sharp Nick M Haddad James S Gerber Paul C West Lisa Mandle Peder Engstrom Alessandro Baccini Sarah Sim Carina Mueller Henry King

Carbon stock estimates based on land cover type are critical for informing climate change assessment and landscape management, but field and theoretical evidence indicates that forest fragmentation reduces the amount of carbon stored at forest edges. Here, using remotely sensed pantropical biomass and land cover data sets, we estimate that biomass within the first 500 m of the forest edge is on...

پایان نامه :0 1391

uncertainty in the financial market will be driven by underlying brownian motions, while the assets are assumed to be general stochastic processes adapted to the filtration of the brownian motions. the goal of this study is to calculate the accumulated wealth in order to optimize the expected terminal value using a suitable utility function. this thesis introduced the lim-wong’s benchmark fun...

2015
Sohye Lee Dongho Lee Tae Kyung Yoon Kamariah Abu Salim Saerom Han Hyeon Min Yun Mihae Yoon Eunji Kim Woo-Kyun Lee Stuart James Davies Yowhan Son

Tropical forests play a critical role in mitigating climate change, and therefore, an accurate and precise estimation of tropical forest carbon (C) is needed. However, there are many uncertainties associated with C stock estimation in a tropical forest, mainly due to its large variations in biomass. Hence, we quantified C stocks in an intact lowland mixed dipterocarp forest (MDF) in Brunei, and...

2001

In the late 1970s, trials were established in the northern interior of British Columbia to investigate alternative regeneration methods and the suitability of different forms of seedling stock on brush-prone sites. This report summarizes the 20 year results of four of the planting trials1 in the Prince George Forest Region, where the effects of stock type and size on tree survival and growth we...

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