globalchange  > 气候变化与战略
DOI: 10.5194/hess-22-2921-2018
论文题名:
Dendrohydrology and water resources management in south-central Chile: Lessons from the Río Imperial streamflow reconstruction
作者: Fernández A.; Muñoz A.; González-Reyes A.; Aguilera-Betti I.; Toledo I.; Puchi P.; Sauchyn D.; Crespo S.; Frene C.; Mundo I.; González M.; Vignola R.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2018
卷: 22, 期:5
起始页码: 2921
结束页码: 2935
语种: 英语
Scopus关键词: Drought ; Forestry ; Stream flow ; Accurate estimation ; Forestry production ; Hydrological regime ; Hydrological scenarios ; Southern Annular Mode ; Streamflow variability ; Tree-ring reconstruction ; Water resources management ; Water resources ; climate signal ; dendrochronology ; drought ; hydrological regime ; paleohydrology ; reconstruction ; snowmelt ; streamflow ; water management ; water resource ; Chile
英文摘要: Streamflow in south-central Chile (SCC, ĝ1/4 ĝ€37-42°ĝ€S) is vital for agriculture, forestry production, hydroelectricity, and human consumption. Recent drought episodes have generated hydrological deficits with damaging effects on these activities. This region is projected to undergo major reductions in water availability, concomitant with projected increases in water demand. However, the lack of long-term records hampers the development of accurate estimations of natural variability and trends. In order to provide more information on long-term streamflow variability and trends in SCC, here we report findings of an analysis of instrumental records and a tree-ring reconstruction of the summer streamflow of the Río Imperial ( ĝ1/4 ĝ€37°ĝ€40′ĝ€S-38°ĝ€50′ĝ€S). This is the first reconstruction in Chile targeted at this season. Results from the instrumental streamflow record ( ĝ1/4 ĝ€1940 onwards) indicated that the hydrological regime is fundamentally pluvial with a small snowmelt contribution during spring, and evidenced a decreasing trend, both for the summer and the full annual record. The reconstruction showed that streamflow below the average characterized the post-1980 period, with more frequent, but not more intense, drought episodes. We additionally found that the recent positive phase of the Southern Annular Mode has significantly influenced streamflow. These findings agree with previous studies, suggesting a robust regional signal and a shift to a new hydrological scenario. In this paper, we also discuss implications of these results for water managers and stakeholders; we provide rationale and examples that support the need for the incorporation of tree-ring reconstructions into water resources management. © Author(s) 2018.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163305
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Fernández, A., Departamento de Geografía, Universidad de Concepción, Concepción, Chile; Muñoz, A., Instituto de Geografía, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile; González-Reyes, A., Instituto de Ciencias de la Tierra, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Aguilera-Betti, I., Instituto de Geografía, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile, Centro Transdisciplinario de Estudios Ambientales y Desarrollo Humano Sostenible (CEAM), Universidad Austral de Chile, Valdivia, Chile; Toledo, I., Instituto de Geografía, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile; Puchi, P., Instituto de Geografía, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile, Dipartimento Territorio e Sistemi Agro-Forestali (TESAF), Università degli Studi di Padova, Agripolis, Italy; Sauchyn, D., Prairie Adaptation Research Collaborative, University of Regina, Saskatchewan, Canada; Crespo, S., Instituto de Geografía, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile; Frene, C., Instituto de Ecología y Biodiversidad, Pontificia Universidad Católica de Chile, Santiago, Chile, Chile; Mundo, I., Instituto Argentino de Glaciología, Nivología and Ciencias Ambientales and Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina; González, M., Instituto de Conservación, Biodiversidad y Territorio, Universidad Austral de Chile, Valdivia, Chile, Chile; Vignola, R., Cátedra Latinoamericana en Decisiones Ambientales para El Cambio Global, Turrialba, Costa Rica

Recommended Citation:
Fernández A.,Muñoz A.,González-Reyes A.,et al. Dendrohydrology and water resources management in south-central Chile: Lessons from the Río Imperial streamflow reconstruction[J]. Hydrology and Earth System Sciences,2018-01-01,22(5)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Fernández A.]'s Articles
[Muñoz A.]'s Articles
[González-Reyes A.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Fernández A.]'s Articles
[Muñoz A.]'s Articles
[González-Reyes A.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Fernández A.]‘s Articles
[Muñoz A.]‘s Articles
[González-Reyes A.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.