Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.7818/ECOS.2104 |
| Productivity of natural grasslands in different geomorphological units of the Sierras Pampeanas of Argentina | |
| Scaglia, Juan A.; Flores, Daniel G.; Martinelli, Mariana | |
| 通讯作者 | Scaglia, JA (corresponding author), Inst Nacl Tecnol Agr, EEA San Juan, Calle 11 & Vidart, RA-5427 San Juan, Argentina. ; Scaglia, JA (corresponding author), Consejo Nacl Invest Cient & Tecn CONICET, Buenos Aires, DF, Argentina. |
| 来源期刊 | ECOSISTEMAS
 |
| ISSN | 1697-2473 |
| 出版年 | 2021 |
| 卷号 | 30期号:2 |
| 英文摘要 | In the semi-arid areas of Argentina there is a variation of the natural grasslands associated with different landscape units. Digital terrain models are tools that have allowed the study of the physical variables of the environment and the dynamics and patterns of semi-arid ecosystems. For this reason, the objective of our work was to determine if there are differences in the productivity and botanical composition of the natural grassland in the different geomorphological units identified. The quantification of the amount of biomass was carried out by the method of double sampling and botanical composition by the method of assigning ranges. To determine the geomorphological properties, a digital model of the terrain was used, where the following were considered: slope, slope orientation, altitude, terrain roughness index and topographic humidity index. Differences were found in terms of the productivity and botanical composition of the natural grassland, influenced directly and indirectly by geomorphological characteristics such as height, slope and roughness. The decades-long history of overgrazing in the foothills of the study area has contributed to grassland degradation through the loss of palatable perennials and the installation of low-quality and annual species. It is necessary to add sampling stations with broader time scales taking into account grazing pressure. |
| 英文关键词 | botanical composition digital terrain model semi-arid topographic variables |
| 类型 | Article |
| 语种 | 西班牙语 |
| 收录类别 | ESCI |
| WOS记录号 | WOS:000687700600004 |
| WOS关键词 | FLORISTIC COMPOSITION ; PLANT-COMMUNITIES ; SOIL ; SLOPE |
| WOS类目 | Ecology |
| WOS研究方向 | Environmental Sciences & Ecology |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/363043 |
| 作者单位 | [Scaglia, Juan A.; Martinelli, Mariana] Inst Nacl Tecnol Agr, EEA San Juan, Calle 11 & Vidart, RA-5427 San Juan, Argentina; [Scaglia, Juan A.; Flores, Daniel G.] Consejo Nacl Invest Cient & Tecn CONICET, Buenos Aires, DF, Argentina; [Flores, Daniel G.; Martinelli, Mariana] Univ Nacl San Juan, Fac Ciencias Exactas Fis & Nat, Dept Biol, Av Jose I de la Roza & Meglioli, San Juan, Argentina |
| 推荐引用方式 GB/T 7714 | Scaglia, Juan A.,Flores, Daniel G.,Martinelli, Mariana. Productivity of natural grasslands in different geomorphological units of the Sierras Pampeanas of Argentina[J],2021,30(2). |
| APA | Scaglia, Juan A.,Flores, Daniel G.,&Martinelli, Mariana.(2021).Productivity of natural grasslands in different geomorphological units of the Sierras Pampeanas of Argentina.ECOSISTEMAS,30(2). |
| MLA | Scaglia, Juan A.,et al."Productivity of natural grasslands in different geomorphological units of the Sierras Pampeanas of Argentina".ECOSISTEMAS 30.2(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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