Redirigiendo al acceso original de articulo en 16 segundos...
ARTÍCULO
TITULO

Relationship between the soil seed bank and vegetation of tall grassland of Spartina argentinensis. Cien. Inv. Agr. (In English) 34(1): 33-40.

S.R. Feldman    
Claudia Alzugaray    
Juan P. Lewis    

Resumen

Tall grass communities of Spartina argentinensis Parodi are the most widespread plant communities in a large saline depression in Santa Fe, Argentina. The vegetation and soil seed bank of these communities have been studied. However, there is no information about the relationship between them. We worked with previous data obtained from the Federico Wildermuth Reserve, Colonia Bel Grano, Departamento San Martín, Santa Fe, Argentina (31°57? S; 61°23? W) and used the cover-abundance of the plant species and density of the soil seed bank for 1998 and 1999. The relationship between plant types C3 and C4 (C3/C4) and annual/perennial functional groups were determined. At the same time, the similarity index and the relationship between coverabundance and density of the shared species was determined. According to results obtained, plant species of type C3 were more frequent in the soil seed bank, while plant species of type C4 were more abundant in the vegetation. There was no signifi cant correlation between coverabundance in the vegetation and soil seed bank density of the common species. The similarity index was very low due to the fact that the number of species common to vegetation and seed bank was very low. In conclusion, there was a low relationship between species of the soil seed bank and vegetation with plant species type C3 and C4 as predominant species, respectively. Los pajonales de Spartina argentinensis Parodi ocupan grandes extensiones en bajos salinos de la provincia de Santa Fe, Argentina. La vegetación y el banco de semillas del suelo de estas comunidades han sido analizados pero se desconoce la relación entre ambos compartimentos de la comunidad. Se trabajó con datos obtenidos previamente de la Reserva Federico Wildermuth Colonia Bel Grano, Departamento San Martín, Santa Fe, Argentina (31°57? S; 61°23? W). Con este propósito se empleó información sobre abundancia-cobertura de la comunidad aérea y densidad del banco, discriminada por especies, obtenidos durante 1998 y 1999. Se calcularon: proporciones de grupos funcionales de especies vegetales C3 y C4 y anuales/perennes, se determinó el índice de similitud y la relación entre abundancia-cobertura y densidad del banco de semillas, para las especies comunes. Las especies tipo C3 predominaron en el banco y las tipo C4 en la vegetación. Las especies comunes a ambos compartimentos no presentaron correlación entre la abundancia-cobertura del suelo y la densidad en el banco. El número de especies comunes fue muy bajo, por lo cual los índices de similitud fueron también bajos. En conclusión, los resultados obtenidos en este estudio demostraron la existencia de una escasa relación entre el banco de semillas del suelo y la vegetación en pie, en los cuales predominan plantas C3 y C4, respectivamente.

 Artículos similares

       
 
Monica Marilena Miazzi, Antonella Pasqualone, Marion Zammit-Mangion, Michele Antonio Savoia, Valentina Fanelli, Silvia Procino, Susanna Gadaleta, Francesco Luigi Aurelio and Cinzia Montemurro    
The genetic diversity of the ancient autochthonous olive trees on the Maltese islands and the relationship with the wild forms growing in marginal areas of the island (57 samples), as well as with the most widespread cultivars in the Mediterranean region... ver más
Revista: Agriculture

 
Shuhao Li, Jun Tian, Shengxiang Ran, Yuqi Zhou, Hongdou Gao and Fenglin Zhong    
Cucumber (Cucumis sativus L.) lateral branch elongation is influenced by a variety of environmental signals, including light [e.g., far-red (FR) light] and hormones. In this experiment, the effect of FR light on the lateral branch elongation of cucumber ... ver más
Revista: Agronomy

 
Ke Ma, Xiatong Zhao, Boyu Lu, Yiru Wang, Zhongxiao Yue, Liguang Zhang, Xianmin Diao and Xiangyang Yuan    
Foxtail millet (Setaria italica [L.] P. Beauv.) is a climate-change-ready crop, and it is crucial for predicting the impact of ecological factors on grain quality. In this study, multivariate statistical analysis was used to explore the relationship betw... ver más
Revista: Agronomy

 
Dongyang Yu, Feihu Peng, Zhihao Zeng, Minghua Zhang, Wenwu Yang, Ying Zang, Jianfei He, Yichen Huang, Yuguang Wu, Wenneng Zhong, Ziyou Guo, Jiawen Liu, Guanjiong Li, Xingmou Qin and Zaiman Wang    
This investigation considered the effects of both internal and external excitation vibrations on the efficacy of the seed dispenser in a rice precision hole seeder. Through comprehensive field tests, we analyzed vibrational characteristics during direct ... ver más
Revista: Agriculture

 
Patrícia Campdelacreu Rocabruna, Xavier Domene, Catherine Preece and Josep Peñuelas    
Phosphorus (P) is a vital macronutrient crucial for crop productivity. Plants absorb P salts, mainly orthophosphate, from the soil, yet the primary P source resides in organic materials. Acid and alkaline phosphatases (the predominant forms of soil phosp... ver más
Revista: Agriculture