Study on Effect of Climate Warming to Carbon Cycle of Terrestrial Ecosystem Based on Fuzzy Evaluation

摘要

As one of the main manifestations of global change, climate warming effect on global terrestrial carbon cycles, this effect has important guiding significance for the development of accurate understanding of the carbon cycle process and related policies, through a lot of research work, this paper based on the fuzzy evaluation method to illustrate the ecological impact of climate warming on land, in the next few years or even decades, the synergistic effect of other manifestations of climate warming and global change will be the next focus of the study, climate change and terrestrial ecosystem between the two-way feedback mechanism is the theoretical basis for more accurate study, the structure and function of ecosystem climate change is the premise to accurately understand and predict future climate scenarios. As one of the main manifestations of global change, climate warming has become an indisputable fact. It is current global average temperature is higher than the average temperature over the past few thousand years. At present, there is strong evidence that human activities lead to the continuous accumulation of greenhouse gases in the atmosphere, so that the gradual rise in global temperatures. According to the forecast, the CO2 effect of carbon dioxide and other greenhouse gases will cause the global average temperature to rise 0.2°C every 10 years. According to the prediction, the global temperature will be a huge change hitherto unknown in the past 10000 years, resulting in the potential impact on the global environment such as climate warming, it can cause a series of environmental problems, such as flat and rising, precipitation distribution pattern change, and the direct and indirect impact on terrestrial ecosystems. The carbon cycle of terrestrial ecosystem is the research focus of global change, which is closely related to global climate change. Climate warming will lead to changes in the global carbon cycle of terrestrial ecosystems, the original carbon balance has been destroyed, and causes a series of environmental problems, such as rising sea level, precipitation pattern changes, etc.. It should be said that the impact of climate warming on terrestrial ecosystems is the core issue in the study of global change. Climate warming has an impact on vegetation carbon pool and soil carbon pool by affecting NPP, it can change the yield and decomposition rate of litter.