The seasonal changes of N, P, K, Na, Ca, Mg and Cl concentrations in the mature leaves of Kandelia candel L Druce and Rhizophora stylosa Griff at Jiulongjiang estuary were studied in the resent study, and the relationships among elements were discussed Although K candel and R stylosa all belong to Rhizophoraceae and salt exclusion types and occur on the same habitat, they were different in the patterns in terms of element accumulation and seasonal changes The leaves of K ...