Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.catena.2018.01.010 |
A paddy on sodic varved sediment and plant life constraints, NE Spain | |
Herrero, Juan; Castaneda, Carmen | |
通讯作者 | Herrero, Juan |
来源期刊 | CATENA
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ISSN | 0341-8162 |
EISSN | 1872-6887 |
出版年 | 2018 |
卷号 | 164页码:50-61 |
英文摘要 | In arid lands, irrigation is necessary for agriculture to be profitable. However, the nature of soils and parent materials is significant enough to trigger permanent management limitations and the loss of important investments, as happened in some areas of the Flumen irrigation district in the Central Ebro Basin, NE Spain. We studied the distinct soil characteristics of a salt-affected agricultural plot and its recurrent problems from the last 30 years. We describe and discuss the prominent features of this soil and their effects on plant life and agricultural management. The evidence of post-irrigation salt-related effects is documented together with the water and soil salinity monitoring records. The presence of varved Holocene sediments comprising alternating clays and carbonate-rich silt with high levels of salinity and sodicity, together with a shallow saline water table, were found to be the key unfavorable conditions. Despite a noticeable decrease in sodium adsorption ratio (SAR) from 1999 to 2015 and a reduction in soil salinity down to a steady state after rice paddy cultivation, SAR and alkalinity remained high enough to hamper irrigated agriculture. Only the native plant Puccinellia festuciformis thrives in the studied plot. The article presents and discusses chemical features analytical data and morphological features pictures and descriptions that are seldom reported and interpreted together in the scientific or technical literature about irrigation of sodic soils, often limited to chem data. The paddy field studied is deemed representative of the most unfavorable soils for agriculture in the irrigated districts of the Ebro valley. |
英文关键词 | Ebro Basin Holocene Irrigation Rice Salinity Sodiclty Soil |
类型 | Article |
语种 | 英语 |
国家 | Spain |
收录类别 | SCI-E |
WOS记录号 | WOS:000430031800006 |
WOS关键词 | INDUCED LAND DEGRADATION ; SOIL-SALINITY ; ELECTROMAGNETIC INDUCTION ; WATER-LOSS ; IRRIGATION ; DISTRICT |
WOS类目 | Geosciences, Multidisciplinary ; Soil Science ; Water Resources |
WOS研究方向 | Geology ; Agriculture ; Water Resources |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/208334 |
作者单位 | CSIC, Estn Expt Aula Dei, Av Montanana 1005, Zaragoza 50059, Spain |
推荐引用方式 GB/T 7714 | Herrero, Juan,Castaneda, Carmen. A paddy on sodic varved sediment and plant life constraints, NE Spain[J],2018,164:50-61. |
APA | Herrero, Juan,&Castaneda, Carmen.(2018).A paddy on sodic varved sediment and plant life constraints, NE Spain.CATENA,164,50-61. |
MLA | Herrero, Juan,et al."A paddy on sodic varved sediment and plant life constraints, NE Spain".CATENA 164(2018):50-61. |
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