Arid
DOI10.1002/eco.1461
Rainfall partitioning, tree form and measurement scale: a comparison of two co-occurring, morphologically distinct tree species in a semi-arid environment
Swaffer, Brooke A.1,3; Holland, Kate L.2; Doody, Tanya M.2; Hutson, John3
通讯作者Swaffer, Brooke A.
来源期刊ECOHYDROLOGY
ISSN1936-0584
EISSN1936-0592
出版年2014
卷号7期号:5页码:1331-1344
英文摘要

The partitioning of precipitation into interception, stemflow and throughfall is an important hydrological process in forested systems, influenced heavily by climate and plant form. This study examined whether the rainfall partitioning pathways reflect the often cited influence of tree morphology, using two species in a semi-arid karst environment. Eucalyptus diversifolia ssp. diversifolia has a multi-stemmed habit, smooth bark and true leaves. In comparison, Allocasuarina verticillata has a single trunk, rough bark and long, thin, vertical phyllodes. We hypothesized that multiple stems and a smooth bark would be more effective at generating stemflow compared with single stems with a rough bark surface. To test this, rainfall, throughfall and stemflow were collected over twoyears, and stemflow funnelling ratios were calculated. The degree of similarity in overall rainfall partitioning for the two species was remarkable; although some divergence was found each month, the partitioning regressions converged. For E.diversifolia, gross rainfall partitioned into interception, throughfall and stemflow averaged 30.9%, 66.4% and 2.7%, respectively. For A.verticillata, rainfall partitioning of gross precipitation into interception, throughfall and stemflow averaged 31.4%, 65.9% and 2.7%, respectively. Maximum stemflow funnelling ratio for E.diversifolia was 74 and for A.verticillata was 147, indicating that water from stemflow is likely to play an important ecohydrological role in this environment. We further compared these findings to 31 global studies and discussed the importance of scale (individual tree vs plot) and canopy cover when reporting or interpreting rainfall partitioning results. Copyright (c) 2013 John Wiley & Sons, Ltd.


英文关键词stemflow throughfall interception stemflow funnelling ratio karst
类型Article
语种英语
国家Australia
收录类别SCI-E
WOS记录号WOS:000344334700006
WOS关键词SOUTH-EASTERN AUSTRALIA ; WATER STORAGE CAPACITY ; SCLEROPHYLL EUCALYPT FOREST ; CANOPY INTERCEPTION LOSS ; LEAF-AREA INDEX ; PINE PLANTATION ; SOUTHEASTERN AUSTRALIA ; NORTHEASTERN MEXICO ; SOIL-WATER ; WESTERN AUSTRALIA
WOS类目Ecology ; Environmental Sciences ; Water Resources
WOS研究方向Environmental Sciences & Ecology ; Water Resources
来源机构Commonwealth Scientific and Industrial Research Organisation
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/181637
作者单位1.South Australia Water Corp, Adelaide, SA 5001, Australia;
2.CSIRO Land & Water, Glen Osmond, SA 5064, Australia;
3.Flinders Univ S Australia, Adelaide, SA 5001, Australia
推荐引用方式
GB/T 7714
Swaffer, Brooke A.,Holland, Kate L.,Doody, Tanya M.,et al. Rainfall partitioning, tree form and measurement scale: a comparison of two co-occurring, morphologically distinct tree species in a semi-arid environment[J]. Commonwealth Scientific and Industrial Research Organisation,2014,7(5):1331-1344.
APA Swaffer, Brooke A.,Holland, Kate L.,Doody, Tanya M.,&Hutson, John.(2014).Rainfall partitioning, tree form and measurement scale: a comparison of two co-occurring, morphologically distinct tree species in a semi-arid environment.ECOHYDROLOGY,7(5),1331-1344.
MLA Swaffer, Brooke A.,et al."Rainfall partitioning, tree form and measurement scale: a comparison of two co-occurring, morphologically distinct tree species in a semi-arid environment".ECOHYDROLOGY 7.5(2014):1331-1344.
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