Above Ground Biomass And Carbon Stocks In A Secondary Forest In Comparison With Adjacent Primary Forest On Limestone In Seram The Moluccas Indonesia

The loss of ecosystem services due to deforestation is of global concern. Financial mechanisms such as REDD+ (reducing emissions from deforestation and forest degradation) have been proposed as ways to support the conservation of tropical forests. Crucial steps in the implementation of REDD+ are to estimate national-level carbon emissions from deforestation and forest degradation and to collect data on local biomass and carbon stocks. In this research, above-ground biomass (AGB) values and associated carbon stocks in a lowland secondary forest are estimated and compared with those in an adjacent primary forest, both growing on limestone in Seram, the Moluccas, Indonesia.

This book is a printed edition of the Special Issue "Urban and Periurban Forest Diversity and Ecosystem Services" that was published in Forests

This study assessed the temporal and spatial variability in forest growth & carbon storage to provide a comprehensive estimate of the carbon budget for boreal ecosystems in the Lake Abitibi Model Forest in northern Ontario. In the study, stand-level growth & carbon dynamics were simulated using TRIPLEX1.0, a new process-based forest growth & carbon dynamics model. The model was recently calibrated & tested using field measurements collected in Ontario, and was validated using 49 permanent sample plots in the Model Forest. Simulated carbon storage (net primary productivity, forest biomass, and soil carbon) are compared with field data and results from other studies on Canadian boreal forests. Estimates of carbon based on stand variables & analysis of the net carbon balance suggest whether the Model Forest ecosystem was acting as a carbon sink. The results provide information needed by local forest managers to develop ecological & carbon-based indicators and to monitor the sustainability of their forest ecosystems.

Estimates of forest carbon stores and flux for California circa 1990 were modeled from forest inventory data in support of California's legislatively mandated greenhouse gas inventory. Reliable estimates of live-tree carbon stores and flux on timberlands outside of national forest could be calculated from periodic inventory data collected in the 1980s and 1990s; however, estimation of circa 1990 flux on national forests and forests other than timberland was problematic owing to a combination of changing inventory protocols and definitions and the lack of remeasurement data on those land categories. We estimate annual carbon flux on the 7.97 million acres of timberlands outside of national forests (which account for 24 percent of California's forest area and 28 percent of its live tree aboveground biomass) at 2.9 terragrams per year.

This study presents techniques for calculating average net annual additions to carbon in forests and in forest products. Forest ecosystem carbon yield tables, representing stand-level merchantable volume and carbon pools as a function of stand age, were developed for 51 forest types within 10 regions of the United States. Separate tables were developed for afforestation and reforestation. Because carbon continues to be sequestered in harvested wood, approaches to calculate carbon sequestered in harvested forest products are included. Although these calculations are simple and inexpensive to use, the uncertainty of results obtained by using representative average values may be high relative to other techniques that use site- or project-specific data. The estimates and methods in this report are consistent with guidelines being updated for the U.S. Voluntary Reporting of Greenhouse Gases Program and with guidelines developed by the Intergovernmental Panel on Climate Change. The CD-ROM included with this publication contains a complete set of tables in spreadsheet format.