CORRELACIÓN ESPACIAL ENTRE MALAS HIERBAS EN UNA PRADERA Y SU RELACIÓN CON LA CONDUCTIVIDAD ELÉCTRICA APARENTE DEL SUELO (CE A )

AUTOR(ES)
FONTE

Planta daninha

DATA DE PUBLICAÇÃO

2015-12

RESUMO

ABSTRACT The objective of this study was to evaluate the ecology and, linear and spatial correlation between weeds in and soil apparent electrical conductivity (ECa, mS m-1) in a grassland. Measurements were done in 23/06/2008 (ECa) and 24/06/2008 (weeds). Data were analyzed using classical statistical and geostatistical tools. Most data presented logarithmic frequency distribution, using the residual kriging being necessary. Low values of correlation measures ECa measurements with weeds in the study area were found, being influenced by the topography of the area. The spatial variability maps have showed relationship between weeds and values of ECa (ECa-V and ECa-H), mainly regarding the number of weed species, as there are an increasing number of species with declining ECa values. The maps of spatial variability for weeds demonstrate the dominance of species and endemism of other species.

Documentos Relacionados