Respiration – JSTOR
and the uplands at higher latitudes. There is limited evidence that CO2 efflux from grass-lands may be about 20% higher than that from comparable forest stands (Raich and Tufekcioglu 2000). Unfortunately, however, most annual esti-mates of CO2 efflux from temperate grasslands date back to the 1970s (compare reviews by Raich