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008			210628t 1986 ||||| |||| 00| 0 eng d
040			_aCR-TuBCO _cCR-TuBCO _bEspañol
041	0		_aeng
100	1		_995324 _aMontagnini, F.
100	1		_975620 _aHaines, B.
100	1		_950207 _aBoring, L.
100	1		_9122556 _aSwank, W.
245	1	0	_aNitrification potentials in early successional black locust and in mixed hardwood forest stands in the Southern Appalachians, USA
260			_aAmsterdam (Países Bajos): _bSpringer, _c1986
270			_aSan José, C.R.
300			_a14 páginas: _b4 tablas
504			_aIncluye referencias bibliográficas en las páginas 209-210
520			_aSoil nitrogen mineralisation and nitrification potentials, and soil solution chemistry were measured in black locust (Robinia pseudo-acacia L.), in pine-mixed hardwood stands on an early successional watershed (WS6), and in an older growth oak-hickory forest located on an adjacent, mixed hardwood watershed (WS14) at Coweeta Hydrologic laboratory, in the southern Appalachian mountains, U.S.A. Nitrification potentials were higher in black locust and pine-mixed hardwood early successional stands than in the oak-hickory forest of the older growth watershed. Ammonification rates were the main factor controlling nitrification in the early successional stands. There was no evidence of inhibition of nitrification in soils from the older growth oak-hickory forest site. Within the early successional watershed, black locust sites had net mineralisation and nitrification rates at least twice as high as those in the pine mixed-hardwood stands. Concentrations of exchangeable nitrate in the soil of black locust stands were higher than in pine-mixed hardwoods at 0–15 cm in March and they were also higher at 0–15, 16–30 and 31–45 cm depth in the black locust dominated sites in July. Soil solution nitrate concentrations were higher under black locust than under pine-mixed hardwoods. Areas dominated by the nitrogen fixing black locust had greater nitrogen mineralisation and nitrification rates, resulting in higher potential for leaching losses of nitrate from the soil column in the early successional watershed.
650	1	4	_9163306 _aROBINIA PSEUDOACACIA
650	1	4	_9147945 _aFIJACION DEL NITROGENO
650	1	4	_9165569 _aSUELO
650	1	4	_9141440 _aCOMPOSICION QUIMICA
650	1	4	_9138269 _aBOSQUE MIXTO
650	1	4	_924573 _aEUA
691			_9163306 _aROBINIA PSEUDOACACIA
691			_aNITROGEN FIXATION
691			_9165084 _aSOIL
691			_9310534 _aCHEMICAL COMPOSITION
691			_9327454 _aMIXED FORESTS
691			_aUSA _xUSA
773	0		_tBiogeochemistry (Países Bajos) _gVolumen 2, páginas 197-210 _d1986
856	4	0	_uhttps://doi.org/10.1007/BF02180195 _qpdf _yeng
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907			_a000001794
907			_a000004874
907			_a000008114
908			_aJ
942			_cDIG _2z