To examine these, I studied two 37 and 40 yearlong chronosequences dominated by Leymus: 1) on Surtsey island, which was created in an oceanic eruption between 1963-1967, and 2) in Leirdalur, an area affected by tephra deposits from numerous eruptions in Mt.
Ég rannsakaði framvindu, uppsöfnun kolefnis og köfnunarefnis í mellöndum, á tveimur svæðum: 1) Surtsey, þar sem var 40 ára aldursröð af melhólum sem mynduðust af sjálfsáðum melplöntum.