Arid
DOI10.1002/hyp.9767
Influence of shrub canopy morphology and rainfall characteristics on stemflow within a revegetated sand dune in the Tengger Desert, NW China
Wang, Xin-ping1; Zhang, Ya-feng1; Wang, Zheng-ning1,2; Pan, Yan-xia1; Hu, Rui1; Li, Xiao-jun1; Zhang, Hao1
通讯作者Wang, Xin-ping
来源期刊HYDROLOGICAL PROCESSES
ISSN0885-6087
EISSN1099-1085
出版年2013
卷号27期号:10页码:1501-1509
英文摘要

Stemflow of xerophytic shrubs was monitored on event basis within a revegetated sand dune. Quantity of stemflow showed a clear species-specific dependence in combination with the rainfall characteristics. Results obtained revealed that for ovate-leaved C. korshinskii with an inverted cone-shaped canopy and smooth bark, the quantity of stemflow in depth accounted for 7.2% of the individual gross rainfall, while it was 2.0% for needle-leaved A. ordosica with a cone-shaped canopy and coarse bark. There were significant positive linear relationships between stemflow and individual gross rainfall and rainfall intensity for the two shrubs. An individual gross rainfall of 1.4 and 1.8 mm was necessary for stemflow generation for C. korshinskii and A. ordosica, respectively. Multiple regression analysis showed that the abiotic and biotic variables including the individual gross rainfall, mean windspeed (WS), canopy height, branch length, and canopy volume have significant influence on stemflow for C. korshinskii, whereas for A. ordosica, the notable influencing variables were individual gross rainfall, stem diameter, and leaf area index. Generally, WS has less effect on stemflow than that of rainfall for A. ordosica. The correlation relationship between individual gross rainfall and funneling ratio showed that the funneling ratio attains its peak when the gross rainfall is 13 and 16 mm for C. korshinskii and A. ordosica, respectively, implying that the canopy morphology emerged as determining factors on funneling ratio decrease when the individual gross rainfall exceeds these values. In comparison, higher WS increased the funneling ratio remarkably for C. korshinskii than A. ordosica due partly to the greater branch length and canopy projection area in C. korshinskii. Funneling ratio can be used as an integrated variable for the effects of canopy morphology and rainfall characteristics on stemflow. The implication of stemflow on water balance and its contribution to sustain the shrubs and the revegetation efforts was discussed. Copyright (c) 2013 John Wiley & Sons, Ltd.


英文关键词stemflow rainfall xerophytic shrub canopy morphology revegetation arid desert ecosystems
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000318350600012
WOS关键词THROUGHFALL ; FOREST ; TREES ; INTERCEPTION
WOS类目Water Resources
WOS研究方向Water Resources
来源机构中国科学院西北生态环境资源研究院
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/177525
作者单位1.Chinese Acad Sci, Shapotou Desert Res & Expt Stn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China;
2.Liaoning Environm Monitoring & Expt Ctr, Shenyang 110031, Peoples R China
推荐引用方式
GB/T 7714
Wang, Xin-ping,Zhang, Ya-feng,Wang, Zheng-ning,et al. Influence of shrub canopy morphology and rainfall characteristics on stemflow within a revegetated sand dune in the Tengger Desert, NW China[J]. 中国科学院西北生态环境资源研究院,2013,27(10):1501-1509.
APA Wang, Xin-ping.,Zhang, Ya-feng.,Wang, Zheng-ning.,Pan, Yan-xia.,Hu, Rui.,...&Zhang, Hao.(2013).Influence of shrub canopy morphology and rainfall characteristics on stemflow within a revegetated sand dune in the Tengger Desert, NW China.HYDROLOGICAL PROCESSES,27(10),1501-1509.
MLA Wang, Xin-ping,et al."Influence of shrub canopy morphology and rainfall characteristics on stemflow within a revegetated sand dune in the Tengger Desert, NW China".HYDROLOGICAL PROCESSES 27.10(2013):1501-1509.
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