El banco de semillas incluye propágulos viables presentes en el suelo por períodos variables de tiempo, su estudio permite obtener información sobre la riqueza, abundancia y predicción de la presencia de especies nativas, cuando el área es impactada. Con el objetivo de caracterizar el banco de semilla de un zacatal de Amelichloa clandestina en un área de 60 ha en el sureste de Coahuila, se colectaron 36 muestras de suelo en los 10 cm superficiales, en un cuadrante de 12 × 12 cm. Las muestras se colocaron en charolas de aluminio y se cubrieron para evitar la contaminación por el viento. Se aplicaron riegos periódicos, las especies se contabilizaron a intervalos de dos días y el registro de germinación se realizó durante tres meses. La riqueza de especies está integrada por 23 especies que pertenecen a 12 familias. A. clandestina inició la mayor germinación a partir de los 48 días y fue la especie que presentó mayor germinación de semilla con 1 030 (ind m-2). En el zacatal existe una elevada reserva de semilla de A. clandestina además de que es la especie dominante y por ello la riqueza de especies del zacatal es baja.
Abandonment of agricultural land is currently one of the main land use changes in developed countries. This change has an impact at the economic level and from the point of view of conservation. Therefore, recovering these areas after abandonment is, in many cases, necessary for ecological restoration, especially as they can be invaded by exotic or dominant species, preventing recovery of the original plant species community. The objective of this study is to examine changes in plant species richness and composition after the application of different treatments to eliminate Amelichloa clandestina, a species that dominates pastures abandoned 12 years ago in an area located in northern Mexico. The area is a semi-desert grassland dominated by buffalo grass Bouteloua dactyloides. We used different eradication techniques such as burning, herbicides, and clipping. Although the treatments had significant effects on species richness and composition and resulted in a relative reduction of the target species, the abundance of Amelichloa clandestina was still substantial. Burning is effective, favoring the increase of species richness and provoking a lower presence of A. clandestine but with a dominance of annuals. The most important impact on the total cover of A. clandestina is shown by the herbicide treatment. However, monitoring of these areas will still be required to consider the long-term impact and success of treatments.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.