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Monday, April 20, 2020 | History

2 edition of Interception of precipitation in the forest found in the catalog.

Interception of precipitation in the forest

JГјrgen Delfs

Interception of precipitation in the forest

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  • 24 Currently reading

Published by Canada Dept. of Fisheries and Forestry Library in Ottawa .
Written in English

    Subjects:
  • Forest influences,
  • Runoff,
  • Precipitation (Meteorology) -- Measurement

  • Classifications
    LC ClassificationsSD425 D4313
    The Physical Object
    Pagination94 leaves :
    Number of Pages94
    ID Numbers
    Open LibraryOL18911254M

    Publications; Current: Snow interception, accumulation, accumulation, where a substantial portion of the precipitation is snow. To learn more about the influence of lodgepole pine forests on accumulation of mow and rate of snowmelt, a series of measurements was made of the snow pack during the winter and spring of in an area typical of Cited by: 6.   The role of fire damage in forest degradation is an established positive feedback: once a forest has already burned or been otherwise disturbed and damaged, it becomes more flammable and thus more likely to burn again (Laurance ). Makarieva and Gorshkov's hypothesis adds drought to this by: Rainfall Interception in Two Contrasting Forest Types in Cited by: 2. As precipitation falls on forest cover, the first influence is interception. Depending on the character of precipitation and the density of the vegetation, it variable amount of water is held by the forest canopy and evaporated into the atmosphere without reaching the ground.

    Snow is the most climatically sensitive element of the annual water budget in the basin. Changes in precipitation, temperature, and forest cover will affect snow accumulation, while changes in temperature and forest cover will affect the rate of snowmelt.


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Interception of precipitation in the forest by JГјrgen Delfs Download PDF EPUB FB2

Interception refers to precipitation that does not reach the soil, but is instead intercepted by the leaves, branches of plants and the forest floor. It occurs in the canopy (i.e.

canopy interception), and in the forest floor or litter layer (i.e. forest floor interception).Because of evaporation, interception of liquid water generally leads to loss of Interception of precipitation in the forest book precipitation for the drainage.

Spittlehouse DL () Rainfall interception in young and mature conifer forests in British Columbia. In: Proceedings of the 23rd conference on agricultural and forest meteorology, 2–6 NovAlbuquerque, NM.

Am Meteorol Soc, pp – Google ScholarCited by: interception was highest in the mixed forest (% of bulk precipitation), while the riparian pine forest had the lowest level (% of bulk precipitation) and the floodplain hard-wood forest had the intermediate level for interception (% of bulk precipitation).

Cited by: The majority of rainfall interception studies have been conducted in forest ecosystems located in arid to tropical climates [6], with reported annual interception losses ranging from 10 to 50% of. Other articles where Interception is discussed: hydrosphere: Distribution of precipitation: This process is termed interception and may result in little water reaching Interception of precipitation in the forest book ground because the water may be directly evaporated from plant surfaces back into the atmosphere.

If precipitation reaches the ground in the form of snow, it may remain there for some time. The interception of precipitation (rain and snow) ous canopies, and from 9 Interception of precipitation in the forest book 48% of PG in coniferous by vegetation canopies is a major component of the canopies (Hormann et al., ).

The evaporation of surface water balance. Annual net interception losses intercepted water from forest canopies reduces the * Corresponding author. Average annual canopy interception was highest in the mixed forest (% of bulk precipitation), while the riparian pine forest had the lowest level (% of bulk precipitation) and the.

Canopy interception is the rainfall that is intercepted by the canopy of a tree and successively evaporates from the leaves. Precipitation that is not intercepted will fall as throughfall or stemflow on the forest floor. Many methods exist to measure canopy interception.

The most often used method is by measuring rainfall above the canopy and subtract throughfall and stem flow (e.g. Introduction. The interception of precipitation (rain and snow) by vegetation canopies is a major component of the surface water balance.

Annual net interception losses (I net) in temperate forests were observed to range from 11 to 36% of gross precipitation (P G) in deciduous canopies, and from 9 to 48% of P G in coniferous canopies (Hörmann et al., ).Cited by: Vegetation canopies can affect the spatial distribution of water within the plant community in both vertical and horizontal dimensions.

Partition of precipitation by vegetation canopy generally comprises three fractions (Fig. Interception of precipitation in the forest book b): (1) interception, which is retained on the vegetation and is evaporated after or during rainfall; (2) throughfall, which reaches ground by passing directly.

Agricultural and Forest Meteorology () – The dynamics of rainfall interception by a seasonal temperate rainforest Timothy E. Linka,∗, Mike Unsworthb,1, Danny Marksc,2 a Department of Forest Resources, University of Idaho, P.O.

BoxMoscow, IDUSA b College of Oceanic and Atmospheric Sciences, Oregon State University, COAS Cited by: and Prunus spp.), presented as: a) cumulative sum of interception loss, and b) monthly averaged interception loss for Interception of precipitation in the forest book rain event.

Figure 8. Tree crown and leaf morphology of sample tree species: a) White Oak; b) Green ash; c) Red maple (Acer rubrum); 4) Cheery-Laural Interception of precipitation in the forest book caroliniana) (Texas A&M Forest Service, ) Figure Size: 1MB. The results showed that % of the precipitation was directly prevented from reaching the forest land surface.

The canopy interception effect was better under low rainfall intensity than high rainfall by: 1. Identification of rainfall interception model parameters from measurements of throughfall and forest canopy storage Jasper A.

Vrugt Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands Stefan C. Dekker Environmental Sciences, University of Utrecht, Utrecht, Netherlands Willem BoutenCited by: Interception & Net Precipitation Canopy Interception % lost due to interception (varies due to stand characteristics and climate) Forest Floor Interception % and depends on thickness of litter, water holding capacity, frequency of wetting, and evaporation Size: 7MB.

Rates and Implications of Rainfall Interception in a Coastal Redwood Forest1 Leslie M. Reid2 and Jack Lewis2 Abstract Throughfall was measured for a year at five-min intervals in 11 collectors randomly located on two plots in a second-growth redwood forest at the Caspar Creek Experimental by: Measurements of the evaporation of rainfall intercepted by Amazonian rain forest were compared with estimates made by two models, the Rutter model and Gash's analytical model, applied to meteorological measurements made with automatic weather stations mounted above the by: Rainfall interception, throughfall and stemflow in a secondary forest INTRODUCTION The presence offorest or any other vegetative cover over an area of land influences the distri­ bution pattern ofrainfall.

Some of the rain is intercepted and retained by the leaves and other parts ofthe trees and eventually lost to the atmosphere in the form.

Such model development is important to understand these processes because forest canopy interception may exceed 59% of annual precipitation in old growth trees. The model describes the interception process from a single leaf, to a branch segment.

In the Atlantic Forest, the interception loss varies from to %. In Brazil, there are few studies of the precipitation quality in the Amazon and Atlantic Forest (GIGLIO; KOBIYAMA, ).

The objective of this study is to analyze the influence of the interception process in the precipitation quality in a watershedCited by: 4. The proceedings presented in this volume are a substantial contribution to the understanding of deposition and interception of pollutants in forest-areas.

Thanks to the authors the volume contains a lot of new research results and presents therefore a Brand: Springer Netherlands. Forest floor interception review Forest floor interception is the part of the (net) precipitation that is temporarily stored in the top layer of the forest floor and successively evaporated within a few hours or days dur-ing and after the rainfall event.

The forest floor can consist of bare soil, short vegetation (like grasses, mosses. This important reference tool for researchers, practitioners and advanced students captures the latest developments in forest hydrology and biogeochemistry.

This book examines new instrumentation, application of novel statistical methods, and process-based understanding of forest-water interactions. Experimental Forest_g; it was necessary to measure the net rainfall under a young loblolly pine plantation.

The results of that study are reported here. 1/ For a discussion of interception and literature references, the reader is referred to: Kittredge, J., Forest Influences, McGraw-Hill Book Co., New York, Cited by: A modified Liu analytical model of rainfall interception (I c) by tree canopies was evaluated using rainfall, throughfall and stemflow data collected from forest restoration trials in the Republic of Panama.

The model uses an introduced approach to estimating the water storage capacities of tree boles, which has a more realistic physical basis. The Dois Irmãos forest is one of the few remaining areas of the Atlantic Forest in the State of Pernambuco. The dams of Meio, Prata and Dois Irmãos, which belong to the Prata Basin, are in it.

The objective of this work was to study the rainfall partitioning in a fragment of the Atlantic forest in the Prata basin, in Recife, PE. 24 raingouges were installed in the interior of the forest Cited by: Deciduous forests have less interception than evergreen forest.

In mixed & uneven-aged forest interception increases and vice versa. Density & Age of forest stand: In multi-storied and uneven-aged forest interception can be very high because of dense vegetation.

By increasing the stand density, the canopy surface area. at an "exposed" site in a clearing outside the forest; about half a mile away,and within the forest, three 4-inch raingauges were installed at random on the forest floor,about 10 yards spart. For the yearcatch by the exposed gauge was ^ mm,whilst catch in the forest gauges was17^5 and mm.

Direct rainfall on the forest floor,Cited by: The Oregon Forest Book Table of Contents Oregon Forest Book • 7 Subsurface flow Precipitation (rain or snow) Transpiration Groundwater flow Soil uptake Interception Evaporation Forests help provide the earth with oxygen Forest Water Cycle Interception Vegetation catches and deflects rain, snow and fog.

Calder, ). Furthermore, most studies on forest interception showed that this interception is closely related to gross rainfall amounts and characteristics.

However, the influence of forest structure on interception is poorly known. Most rainfall interception and water balance studies in Amazonia were executed in Brazil (Ubarana, ;File Size: KB. For precipitation above canopy of more than 40 mm in the mixed forest, the interception is independent of precipitation and the mean value of interception is 20% above sasa and % at ground.

For precipitation less than 40 mm, the interception almost linearly depends on. Hydrologic Processes: Canopy Interception and Evaporation. A considerable proportion of the precipitation falling on a forest is intercepted by the canopy, clings to the leaves and branches and never reaches the ground, eventually evaporating back to the atmosphere (I/E).

In forests, the canopy changed rainfall kinetic energy (KE) by intercepting precipitation, and thus, modifying raindrop size and velocity [].Throughfall kinetic energy (TKE) is a usually used indicator to express the potential of rainfall erosivity and predict soil erosion rates [15,16].Brandt [] first developed a model to calculate TKE and it was widely assumed that a forest canopy mitigated Cited by: 1.

Forest management can alter the structure of vegetation (layer), particularly in areas used for pasture, such as the Faxinal areas in the south central region of Paraná, Brazil.

Therefore, the aims of the present study were as follows: (a) to assess rain interception in secondary forests; (b) to estimate the maximum precipitation intercepted by the forest; and (c) to discuss the possible Cited by: 6. The model has been tested against data from Thetford Forest in East Anglia, with satisfactory agreement between observation and estimation.

It is suggested that the model may be capable of making useful estimates of the evaporation of intercepted Cited by: For the test main forest types, the ratio of their canopy interception to precipitation ranged from % to %, throughfall was more than 80%, and stemflow ranged from % to %.Cited by: 3.

Rainfall interception by annual grass and chaparral: Losses compared (USDA Forest Service research paper PSW) [Edward Sisk Corbett] on *FREE* shipping on.

Interception (contd) Precipitation striking vegetation may be retained on leaves or blades of grass, flow down the stems of plants and become stem flow, or fall off the leaves to become part of the throughfall. The modifying effect that a forest canopy can have on rainfall intensity at the ground (the throughfall) can be put to practical use in 3/5(2).

Helvey, J. Rainfall interception by hardwood forest litter in the southern Appalachians. Research Paper SE Asheville, NC, USDA Forest Service, Southeastern Forest Experiment Station.

Furthermore, the large differences in interception that can occur on a site due to varying forest canopy density, structure and the appearance of canopy gaps is smoothed out using the eddy covariance method as the size of the flux footprint area incorporates these variations, and provides an average interception value over the flux footprint Author: Matthew J.

Czikowsky. COVID Resources. Reliable information about the coronavirus (COVID) is pdf from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle .RAINFALL OVER FOREST REGIONS -INTERCEPTION LOSS " • 1 GENERAL Download pdf is the portion of the precipitation falling on the earth's surface which is stored or collected by vegetal cover and subsequently evaporated.

The volume of water so lost is called interception loss. In studies of major storm events and floods the interception loss is.Ebook interceptional loss, equal to the excess evaporation from ebook wet canopy over a dry one, depended on rainfall duration and character and was on the average about 60–80% of total interception, In the overall summer water balance of mm of precipitation and 52‐mm depletion of soil storage, transpiration via the trees accounted for mm Cited by: