Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s11258-018-0834-2 |
Water and nitrogen supply effects on four desert shrubs with potential use for rehabilitation activities | |
Emilia Fernandez, Maria1; Ines Pissolito, Clara2; Bernardo Passera, Carlos3 | |
通讯作者 | Emilia Fernandez, Maria |
来源期刊 | PLANT ECOLOGY |
ISSN | 1385-0237 |
EISSN | 1573-5052 |
出版年 | 2018 |
卷号 | 219期号:7页码:789-802 |
英文摘要 | Desert evergreen shrubs, which are adapted to low-fertility ecosystems, generally exhibit limited responses to increased nutrient availability and tend to absorb and store nutrients rather than synthesize new tissues. The objective of this work was to analyze the effect of nitrogen fertilization combined with soil water availability on growth, nitrogen content, and nitrogen use efficiency on four shrubs (Atriplex lampa, Capparis atamisquea, Larrea cuneifolia, and Senecio subulatus) from the Monte Desert. In a 120-day glasshouse experiment in Mendoza, Argentina, we compared the effects of three levels of nitrogen fertilization combined with two levels of water availability on seedling biomass, nitrogen content, water potential, and nitrogen use efficiency. Fertilization induced a higher biomass on A. lampa under high water availability and on C. atamisquea regardless of water level. Shoot:root ratios of these two species were lower under water stress without fertilization. On the other hand, L. cuneifolia presented lower root biomass and lower water potential with N fertilization. All species when fertilized exhibited higher nitrogen content and lower nitrogen use efficiency. Also, A. lampa and L. cuneifolia presented higher nitrogen content under water stress conditions. In conclusion, some desert shrubs (A. lampa and C. atamisquea) were able to take advantage of increased nitrogen availability producing more biomass. Understanding seedlings response to nitrogen and water availability on arid lands is critically important to develop adequate revegetation techniques of degraded areas. |
英文关键词 | Monte Desert Growth Shoot:root ratio Nitrogen content Nitrogen use efficiency |
类型 | Article |
语种 | 英语 |
国家 | Argentina |
收录类别 | SCI-E |
WOS记录号 | WOS:000434910100003 |
WOS关键词 | LARREA-TRIDENTATA ; MONTE DESERT ; SEEDLING EMERGENCE ; PROSOPIS-FLEXUOSA ; MINERAL-NUTRITION ; PATAGONIAN MONTE ; NATIVE SHRUBS ; WILD PLANTS ; ARGENTINA ; FERTILIZATION |
WOS类目 | Plant Sciences ; Ecology ; Forestry |
WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology ; Forestry |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/212195 |
作者单位 | 1.CCT Mendoza CONICET, Inst Argentino Invest Zonas Aridas IADIZA, Ruiz Leal S-N,Parque Gral San Martin,CC 507, RA-5500 Mendoza, Argentina; 2.Univ Nacl Rio Negro CONICET, Inst Invest Agroecol Recursos Nat & Desarrollo Ru, San Martin 2650, RA-8430 El Bolson, Rio Negro, Argentina; 3.Univ Nacl Cuyo, Fac Ciencias Agr, Catedra Fisiol Vegetal, Alte Brown 500, RA-5505 Mendoza, Argentina |
推荐引用方式 GB/T 7714 | Emilia Fernandez, Maria,Ines Pissolito, Clara,Bernardo Passera, Carlos. Water and nitrogen supply effects on four desert shrubs with potential use for rehabilitation activities[J],2018,219(7):789-802. |
APA | Emilia Fernandez, Maria,Ines Pissolito, Clara,&Bernardo Passera, Carlos.(2018).Water and nitrogen supply effects on four desert shrubs with potential use for rehabilitation activities.PLANT ECOLOGY,219(7),789-802. |
MLA | Emilia Fernandez, Maria,et al."Water and nitrogen supply effects on four desert shrubs with potential use for rehabilitation activities".PLANT ECOLOGY 219.7(2018):789-802. |
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