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Mapped estimates of forest aboveground biomass (AGB) at regular intervals are important in carbon cycle studies. In the southwestern United States, there have been extensive changes to forests over the last decade, due to wildfire, climate-driven insect outbreaks and disease, increasing forest-human interaction, resource exploitation, and increasing aridity [1]. Earlier estimates of AGB based on MISR...
The study on the soil organic metter, microbial biomass, C and N of meadow grassland under the different condition of grazing intensity, showed that the different condition of grazing intensity has an effect on the soil organic metter, microbial biomass, C and N, the soil organic metter in the area of fence and light grazing higher than that of moderate and heavy grazing(P<0.05), the soil...
Surface soil samples (0∼20cm) were collected from a Calamagrostis angustifolia freshwater marsh in the Sanjiang Plain from May to September and soil active organic carbon including microbial biomass carbon (MBC), easily oxidizable carbon (EOC), dissolved organic carbon (DOC) were analyzed aiming to reveal their seasonal dynamics characterisitics and their correlationships with activities of soil invertase,...
Biomass gasification with steam/air is compared from an exergetic aspect. The comparison details include the exergy efficiencies of the product gases, tar, char and the lost part from the same biomass of both steam gasification and air gasification. Some conclusions can be obtained from the results. In the temperature range from 800°C to 1200°C analyzed in this paper, exergy efficiencies of both steam...
In order to better understand the limiting factors and substrate affecting soil CO2 flux, we measured total organic carbon, microbial biomass carbon, microbial biomass nitrogen, dissolved organic carbon, and dissolved organic nitrogen from seven sites of four land use types of subtropical agriculture soils. Objectives were to (1) evaluate the relationship of MBC, MBN, DOC, and DON with soil CO2 flux,...
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