Water content and land use history controlling soil CO₂respiration and carbon stock in savanna soil and groundnut fields in semi-arid Senegal

Tree survey and allometric models for tiger bush in northern Senegal and comparison with tree parameters derived from high resolution satellite data

“…Trees are relatively sparse and the surface cover is dominated by annual grasses (e.g. Schoenefeldia gracilis, Digitalia gayana, Dactyloctenium aegypticum, Aristida mutabilis and Cenchrus bifloures) (Fensholt et al, 2006;Elberling et al, 2003). The soil is sandy and reddish in colour and was classified as an Arenosol by Batjes (2001).…”

Heterotrophic Soil Respiration in Relation to Environmental Factors and Microbial Biomass in Two Wet Tropical Forests

“…Therefore, differentiating the total soil microbes into bacteria and micro-fungi and investigating their relationships with heterotrophic soil respiration will significantly improve our understanding on soil carbon dynamics. In addition, vegetation type may also affect heterotrophic soil respiration through its effect on litter production and litter quality, microbial communities, and soil microclimate (Davidson and Ackerman, 1993;Elberling et al, 2003). By synthesizing a global database on soil respiration, Raich (2000) found that vegetation types could significantly influence soil respiration and decomposition.…”

Soil and vegetation-atmosphere exchange of NO, NH 3 , and N 2 O from field measurements in a semi arid grazed ecosystem in Senegal

“…Specific climatic conditions have to be taken into account in the Sahel: at the beginning of the rainy season, the soil moisture becomes sufficient to activate the microbial activity in the soil (Bouwman et al, 2002;Meixner and Yang, 2006), NO and N 2 O (and CO 2 ) emissions are larger than in the dry season, and large bursts of emission are produced when first precipitations shower long-dried soils (Yienger and Levy, 1995;Jaegl e et al, 2004, Delon et al, 2008Hudman et al, 2010;Delon et al, 2015;Elberling et al, 2003).…”