Composición y diversidad del matorral desértico rosetófilo en dos tipos de suelo en el noreste de México

Acta Botanica Mexicana

José Israel Yerena Yamallel¹  Javier Jiménez-Pérez¹  Marco Aurelio González-Tagle¹  Eduardo Alanís-Rodríguez¹  Laura Elena González-Rodríguez²  José Guadalupe Martínez-Ávalos²  Arturo Mora-Olivo² 

[1] Universidad Autónoma de Nuevo León;Universidad Autónoma de Tamaulipas

关键词: composición florística;    matorral xerófilo;    Nuevo León;    tipos de suelos;   

DOI  :  10.21829/abm110.2015.187

学科分类：植物学

来源: Acta Botanica Mexicana

【 摘 要 】

The floristic and ecological characteristics of a rosette desert scrub in two areas differing in soil type (Rendzina + Lithosol, medium texture, lithic, and Regosol calcareous + Lithosol, medium texture) in northeastern Mexico were studied. Using 44 plots of 20 × 10 m we sampled succulents, shrubs and tree species. We estimated the following vegetation variables: density (N/ha), crown cover (m 2 /ha), frequency, importance value index ( IVI ), in addition to α- and β-diversity. By ANOVA, no significant differences were found in richness, diversity and crown cover. The results indicate that the floristic composition was different between the two soil types, the density being significantly higher in the Regosol (8909 N/ha) than in the Rendzina (4790 N/ha). The predominance of cacti is favored by low moisture retention in the calcaric + Litosol Regosol association.

【 授权许可】

CC BY-SA