نتایج جستجو برای: rainfall interception

تعداد نتایج: 35958  

2016
Zhi-Shan Zhang Yang Zhao Xin-Rong Li Lei Huang Hui-Juan Tan

In water-limited regions, rainfall interception is influenced by rainfall properties and crown characteristics. Rainfall properties, aside from gross rainfall amount and duration (GR and RD), maximum rainfall intensity and rainless gap (RG), within rain events may heavily affect throughfall and interception by plants. From 2004 to 2014 (except for 2007), individual shrubs of Caragana korshinski...

2016
Yi-Ying Chen Ming-Hsu Li Ataur Rahman

The factors controlling seasonal rainfall interception loss are investigated by using a double-mass curve analysis, based on direct measurements of high-temporal resolution gross rainfall, throughfall and stemflow from 43 rainfall events that occurred in central Taiwan from April 2008 to April 2009. The canopy water storage capacity for the wet season was estimated to be 1.86 mm, about twice th...

2000
N. Zeng J. W. Shuttleworth J.H.C. Gash

An interception model that links the temporal variability of rainfall with the storm-based description of the interception process is derived. Analytical formulae for long-term interception loss are obtained for precipitation with statistical characteristics derived from observations. The analysis of the results indicates that the point interception loss is controlled primarily by three time sc...

Journal: :Monthly Weather Review 1919

2015
Chris B. Zou Giulia L. Caterina Rodney E. Will Elaine Stebler Donald Turton Christian Andrew Hagen

Rainfall partitioning and redistribution by canopies are important ecohydrological processes underlying ecosystem dynamics. We quantified and contrasted spatial and temporal variations of rainfall redistribution for a juniper (Juniperus virginiana, redcedar) woodland and a tallgrass prairie in the south-central Great Plains, USA. Our results showed that redcedar trees had high canopy storage ca...

2006
Joseph A. Kozak Lajpat R. Ahuja Timothy R. Green Liwang Ma

Crop canopies and residues have been shown to intercept a significant amount of rainfall. However, rainfall or irrigation interception by crops and residues has often been overlooked in hydrologic modelling. Crop canopy interception is controlled by canopy density and rainfall intensity and duration. Crop residue interception is a function of crop residue type, residue density and cover, and ra...

2003

Canopy interception plays an important role in determining the amount of rainfall reaching the forest floor. During a rainfall event, water either penetrates the canopy falling directly to the understory of the forest floor, or is intercepted by the canopy. From there it can drip to the ground surface, flow down tree stems, or be held and evaporated. The portion that falls directly to the groun...

2013
Xiang Li Jianzhi Niu Baoyuan Xie

Canopy interception, throughfall, stemflow, and runoff have received considerable attention during the study of water balance and hydrological processes in forested ecosystems. Past research has either neglected or underestimated the role of hydrological functions of litter layers, although some studies have considered the impact of various characteristics of rainfall and litter on litter inter...

Journal: Desert 2010
a. bahremand h. barani m. mesdaghi m. sharafatmandrad

Abstract The impact of rainfall and light interception by litter on maintenance of surface soil water content is determined in an arid rangeland in Khabr National Park in south-east of Iran. Litter weight sampling is done by 90 square plots, each 1 m2, that are randomly placed within site. After determining the intensity of a typical storm of the region (20 mm/h), the rainfall duration requir...

2007
Ning Zeng James W. Shuttleworth John H. C. Gash

An interception model is derived that links the temporal variability of rainfall with the stormbased description of the interception process. Analytical formulae are obtained for precipitation occurrence with idealized statistical characteristics. The analysis of the results indicates that point interception loss is controlled primarily by three time scales: the mean inter-storm arrival time a,...

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