The relationship between the climatic factors and the litter decomposition of 4 species(Aneurolepidium chinense , Stipa grandis , Salsola collina , Achnatherum splendens )in InnerMongolia steppe were studied by modelling. The mathematical model is X(t)/X(o)=exp[-(at b∑T c∑P )] ,Where t is time ,X (t)is the weight of the remaining litter at time t,T isair temperature ,and P is precipitation. A high temperature and aboundant precipitation willresult in rapid decomposition. The relativc rate of decomposition ...