Data/hora: 23/06/2024 18:07:16

Biblioteca(s): 	Embrapa Pantanal.	
Data corrente: 	06/08/1997	
Data da última atualização: 	03/04/2017	
Autoria: 	PANDEY, C. B.; SINGH, J. S.	
Título: 	Influence of grazing and soil conditions on secondary savanna vegetation in India.	
Ano de publicação: 	1991	
Fonte/Imprenta: 	Journal of Vegetation Science, v.2, n.1, p.95-102, 1991.	
Idioma: 	Inglês	
Conteúdo: 	Savanna vegetation and pertinent soil features were studied on 43 sites in a dry tropical forest region of India. Grazing intensity ranged from 0.68 to 0.98. Soil moisture was poositively related to the proportion of fine soil particles (<0.1 mm), and the latter decreased while the proportion of coarse particles (2.0-0.5 mm) increased with increasing grazing intensity. Canopy biomass ranged from 28 to 104 g/m2 in grazed communities and from 230 to 337 g/m2 in ungrazed communities and was positively related to vegatation cover which ranged between 30 - 72% in grazed and 68 - 91% in ungrazed communities. Vegetation cover was negatively related to grazing intensity. Species richness and diversity were highest at low grazing intensity. Using community coefficients and Detrended Correspondence Analysis, then grazed stands were clustered into six and the ungrazed ones into three communities. The grazed communities were regognised as degradation stages and the umgrazed ones as recovery stages. Only five grass species, in various combinations were able to dominate in one of the different stages. Evidently the harsch climatic conditions (high temperatures, high variability in rainfall and a long dry period) in the region permit only a few species already sdapted to these conditions to participate in the succession.	
Palavras-Chave: 	Analise multivariada; Community; Comunidade; Recovery; Recuperacao; Savana tropical; Succession; Sucessao; Tropical savanna.	
Thesagro: 	Vegetação.	
Thesaurus Nal: 	multivariate analysis; vegetation.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Pantanal (CPAP)	
Exemplares: 	CPAP - (34645-1) - ADC - SP - PP - SP15302 -  - 15302 - DIS