000			019900000a22003130004500
904			_aBCO
905			_aC
908			_aJ
909			_aAS
914			_aFORES
082	0	4	_a41519
100	1		_982667 _aKELLMAN, M.
100	1		_994736 _aMIYANISHI, K.
100	1		_977988 _aHIEBERT, P.
260			_c1985
520			_a(1) The daily patterns of precipitation, soil water movement, and the concentration of nutrient elements in soil solutions at five depths were examined beneath three types of savanna in Belize, Central America, after burning. (2) Large increases in the concentration of some elements were recorded in the rooting zones in all types, but these disappeared within 1 week. Despite much percolation, no comparably large increases were recorded in solution concentrations deeper in the soil. (3) A comparison of the mean element concentrations after this post fire peak with concentrations before the burn, and during an equivalent period 1 year earlier, showed many significant increases in concentration in the topsoil, but few increases in deeper soil. Ca and P appear to have been most effectively retained, Mg and K less so, and Na the least. (4) The results confirm the resistance of the three savanna types to acute losses of nutrients due to leaching after fire, and it is suggested that greater losses are likely to result from surface run-off during rainstorms. However, repeated burning has not significantly reduced the fertility of the surface soil, but has significantly increased the amounts of Ca and Mg in the soil exchange complex
650	1	4	_9165625 _aSUELOS
650	1	4	_9150981 _aINCENDIOS
650	1	4	_922334 _aBELICE
691			_9319217 _aFIRES
691			_922335 _aBELIZE
692			_aINCENDIE
692			_aBELIZE
773	0		_tJournal of Ecology (RU) _d1985 _gno.73 p.553-962
040			_aCR-TuBCO _cCR-TuBCO _bEs
245	1	0	_aNutrient retention by savanna ecosystems II. Retention after fire
942			_cANA
003			CR-TuBCO
999			_c55299 _d55299