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 ...

The global forest products industry’s carbon and greenhouse gas profile is composed of emissions, sequestration, and avoided emissions. Emissions from the forest products value chain are comprised of direct emissions from manufacturing (~260 million tonnes CO2 per year), as well as a number of different types of indirect emissions including those associated with electricity purchases (~190 mill...

This paper analyzes how sustained yield (SY) forestry is defined and implemented in Sweden and Russia, two countries with different forest-industrial regimes. We first compare definitions of SY forestry in national legislation and policies. Then we study forest management planning in two large forest management units with respect to: delivered forest products and values, how the harvest level o...

natural sources of water contain some halogenated organic compounds after disinfection by chlorine. trihalomethanes are one group of the chlorination by products that suspected of being carcinogenic inhuman unfortunately, these compounds are in finished water of all treatment plants that use chlorine as a disinfectant. in this study, the concentration of total thms of water treated in the water...

In recent decades, concerns have arisen about the proper valuation of the world's forests. While some of these concerns have to do with market distortions for timber products or inadequate data on non-timber forest products, an additional issue has been the challenge of uncovering the economic worth of non-market services provided by forest ecosystems (Kramer, Healy and Mendelsohn). This has le...

Over the last five years forest products other than timber-based products have received a great deal of attention. The markets for medicinal plants that are collected from the forests are growing rapidly. Some reports suggest this segment of the non-timber forest products industry is expanding faster than the timber-based industry. Plants used for their therapeutic value are marketed either as ...