نتایج جستجو برای: forest stock
تعداد نتایج: 195367 فیلتر نتایج به سال:
Environment[1] Environment[1]Climate Change [2]Forest [3]Mountain [4]Norway [5]Forskning.no [6] Birch forest is currently expanding in mountain regions because of climate warming and reduced grazing pressure. A recent study shows that increased mountain forest promotes climate warming. Tourists and locals have noticed that forests are creeping up hillsides in mountain regions in Norway. Beautif...
NĚMEC P. 2015. Comparison of modern forest inventory method with the common method for management of tropical rainforest in the Peruvian Amazon. Electronic devices consisting of field computer, laser rangefinder, electronic compass and global positioning system unit were used for data collection in the tropical rainforest of the Peruvian Amazon with the objective of comparing forest inventory m...
BACKGROUND The objective of this study was to demonstrate a new, cost-effective method to define the sustainable amounts of harvested wood products in Southeast Asian countries case studies, while avoiding degradation (net loss) of total wood carbon stocks. Satellite remote sensing from the MODIS sensor was used in the CASA (Carnegie Ames Stanford Approach) carbon cycle model to map forest prod...
Large tropical trees and a few dominant species were recently identified as the main structuring elements of tropical forests. However, such result did not translate yet into quantitative approaches which are essential to understand, predict and monitor forest functions and composition over large, often poorly accessible territories. Here we show that the above-ground biomass (AGB) of the whole...
Forest soils are a key element of the forest ecosystems which could contribute to carbon storage and climate change mitigation. The sequestration potential soils, however, depends great extent on forestry operations management activities carried out in forest. There is widely accepted assumption that under set conditions content at equilibrium. However, different factors like activities, produc...
Changes in China Fang et al. (1), using forest inventory data to estimate changes in forest biomass carbon storage in China during the past 50 years, demonstrated that China’s carbon storage in living forest biomass has increased since the 1980s. We appreciate their valuable effort; however, the equation used to estimate forest biomass [note 20 in (1)] is questionable. Fang et al. purportedly d...
The objectives of this study were to estimate changes of tree carbon (C) and soil organic carbon (SOC) stock following a conversion in land use, an issue that has been only insufficiently addressed. For this study, we examined a chronosequence of 2 to 54-year-old Pinus kesiya var. langbianensis plantations that replaced the original secondary coniferous forest (SCF) in Southwest China due to cl...
Fries, C. & Lamls, T. 2000. Different management regimes in a boreal forest landscape: ecological and economic effects. Studia Forestalia Suecica 208. 25 pp. ISSN 0039-3150. Five management regimes were theoretically applied and evaluated in a 10 000 ha boreal forest landscape. Four regimes were designed to enhance conditions for biodiversity conservation, by establishing reserves and by modify...
The relationship between landscape patterns and functions is the central research theme of landscape ecology and forest management. This study assesses the interactive relationship of landscape heterogeneity with the carbon stock of urban forests in the city of Xiamen, Fujian Province, China, using spatial and statistical analyses. The objectives of this study are to explore the most appropriat...
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