TITLE

COMPOSICI�N Y ASPECTOS ESTRUCTURALES DE LOS BOSQUES DE ENCINO DE LA SIERRA DE ZAPALINAM�, COAHUILA, M�XICO

AUTHOR(S)
DOM�NGUEZ, JUAN ANTONIO ENCINA; LUPERCIO, ALEJANDRO Z�RATE; CASTILL�N, EDUARDO ESTRADA; REYNA, JES�S VALD�S; QUINTANILLA, JOS� �NGEL VILLARREAL
PUB. DATE
January 2009
SOURCE
Acta Botanica Mexicana;ene2009, Issue 86, p71
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
To determine the structure and floristic composition of the oak forest of the Sierra de Zapalinam�, we established sixty six plots of 500 m�. Density and basal area were measured for adult trees and density and cover in shrubs. Saplings were considered in concentric areas of 50 m� and seedlings in five areas of 1 m�. All the plants were collected and identified. Vegetation attributes were used to obtain the importance value for trees and shrubs. The vascular flora takes in 259 species and intraspecific taxa with 178 genera in 67 plant families. The forest associations were defined by Quercus greggii - Q. mexicana and Quercus saltillensis - Q. laeta; the most important oaks in the forest structure were Quercus greggii (1480 ind ha-1), Q. saltillensis (876), Q. laeta (741) and Q. mexicana (284). The mature tree density (4448 ind ha-1) differs opposed to the seedlings (269 ind ha-1) and saplings (175 ind ha-1). The oaks with the highest basal area were Quercus greggii with 9.0 m� ha-1 and Q. saltillensis 6.62 m� ha-1. Thirty seven pairs of species were analyzed and 62% have significant association. The shrubs with the highest value of covering were: Garrya glaberrima, Ageratina ligustrina and A. saltillensis. The herbs were 72.9% of the flora and the most common elements were: Artemisia ludoviciana, Pleopeltis guttata, Cheilanthes tomentosa and Achillea millefolium. The species number diminishes when the altitude increases.
ACCESSION #
36235035

 

Related Articles

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics