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Wetland ecosystems have strong ability for carbon storage and fixation, and play important roles in the global carbon cycle. The accurate estimation of the leaf chlorophyll content is a significant foundation for researching wetland ecosystem cycle models. In this paper, the inversion of the leaf chlorophyll content was based on PROSPECT model from the physical mechanism angle. Leaf spectrum was simulated...
The permafrost in Qinghai-Tibet Plateau is the biggest thickness and the broadest area in middle and low latitude in the present world, the permafrost ecosystem is one of main ecosystem, the carbon cycle of permafrost ecosystems plays an important role in the global carbon cycle. Firstly, reviewed research progress of the permafrost and temperature changes and reasons for the differences, and subsequently...
The spatial and temporal dynamics of the carbon storage of the paleobiomes in eight geological periods (early Carboniferous, late Carboniferous, middle Permian, early Jurassic, late Cretaceous, Eocene, Oligocene and Miocene) were analyzed in this study, based on the area and the estimated unit carbon density of the paleobiomes. The results showed that the change rates of the carbon densities of vegetation...
Spruce (Picea asperata) is a special species of China, it is the main tree building species of high mountains in Sichuan, and plays an important role in the restoration of degraded ecosystems in sub-alpine areas in western China. In this study, impacts of different rotation lengths on carbon storage over 480 years were simulated using the ecosystem Model FORECAST for spruce, FORECAST_SPRUCE. Four...
The climate change has significantly affected the carbon cycling in Yangtze River Basin. To better understand the alternation pattern for the relationship between carbon cycling and climate change, the net primary production (NPP) were simulated in the study area from 1956 to 2006 by using the Integrated Biosphere Simulator (IBIS). The results showed that the average annual NPP per square meter was...
This paper used the revised BEPS ecological model to simulate net primary productivity (NPP) and evapotranspiration (ET) of terrestrial ecosystems in Lushui river watershed. Results showed that in recent years climate variability was mainly characterized by decrease in precipitation, especially in April, May and June (wet season). ET trended to increase in July, August and September (dry season)....
This paper employed the carbon dynamic model and IPCC cement model to estimate the amount of carbon emitted by energy and cement, and used CO2FIX model to predict the forest carbon sinks in Beijing, Tianjin and Hebei Province from 2009 to 2050, then, this paper analyzed the influential factors and the contribution of forest carbon sinks to carbon emissions reduction. The main conclusions are as follows:...
Impact of climate on the terrestrial carbon cycle is a focus of global change study. However, only a few researches have been conducted to investigate the influences of extreme climate events on terrestrial carbon cycling. This study takes Jian city, Jiangxi Province, China, as the study area to assess the regional change of gross primary productivity (GPP) caused by the severe ice storm hitting China...
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