Soil nutrient contents of Alnus sibirica Fisch. ex Turcz. plantations of different ages were determined by routine methods in order to study the effect of A. sibirica on soil fertility. Result showed that nutrient content in rhizosphere soil in A. sibirica plantation of the same age was higher than that in non rhizosphere soil. The contents of all the nutrients in the soil increased with forest age increasing except the content of available phosphorus, which were higher than those of Sorbus L. plantation (the control). It is indicated that the effect of A. sibirica on soil fertility is obvious and it can increase the soil fertility.
Alnus sibiricaOrganic mattersAvailable NAvailable PAvailable K
NETL
NSTL
万方数据
维普
