![]() Adjusting and optimizing energy structure, vigorously developing biomass energy has become the main developing trend of energy in the future. In addition, the current world is facing the dual pressures of economic growth and environmental protection. ![]() Therefore, the scientific and real-time monitoring of forest cover change and more accurate estimates of forest biomass and its magnitude is of significance to clarify the contribution of forests in global climate change. Land use/land use change (mainly deforestation) is considered to be an important approach to the release of CO 2, which affects the carbon cycle on various spatial and temporal scales, and then global climate change. Global deforestation is undergoing seriously, which contributes to a quarter of carbon released into the atmosphere each year. However, prior to this, spatial variation of forest biomass at various levels should be explored using multi-source data and multi-approaches. ![]() LIDAR) would be the key tools to improve forest biomass estimation accuracy. In this chapter, we argued that the new developed technique such as geo-statistics and remote sensing technique (e.g. For each method, we will present background, rational, applicability, as well as estimation procedure by exemplifying a case. Here, we reviewed the estimate methods, including allometric equation, mean biomass density, biomass expansion factor, geostatistics, etc. Therefore, the scientific evaluation of the size and potential of energy from plant also requires a suitable method for estimating biomass. As energy plant is characterized by a large net accumulation of biomass. Improving energy structure and vigorously developing biomass energy has become the development trend of energy utilization in the future. Moreover, the world is increasingly facing the conflicting pressures of economic growth and environmental protection. The use of a suitable and rigor method to accurately estimate forest biomass is significant. However, the large uncertainty in biomass estimation is unable to meet the requirement of the accurate carbon accounting. Forest plays a special role in carbon sequestration and thus mitigating climate change.
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