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@INPROCEEDINGS{Wiekenkamp:279229,
author = {Wiekenkamp, Inge and Lin, H. S. and Graf, Alexander and
Huisman, Johan Alexander and Bogena, Heye and Vereecken,
Harry},
title = {{D}eforestation {E}ffects on {S}oil {M}oisture {P}atterns
and {W}ater {F}luxes in a {H}eadwater {C}atchment},
reportid = {FZJ-2015-07244},
year = {2015},
abstract = {Although the hydrological effects of deforestation have
been studied since the beginning of the 20th century, little
is known about its effect on soil moisture variability and
water movement through the vadose zone. Analyzing the
changes in patterns of soil moisture content can assist in
identifying changes in short-term catchment dynamics. The
objective of this study was to evaluate changes in
spatial-temporal soil moisture patterns and water movement
caused by partial deforestation in the small headwater
catchment Wüstebach (Germany). In this catchment, soil
moisture has been measured since July 2009 at more than 100
locations using a wireless soil moisture sensor network with
a 15 minute resolution. Additionally, discharge,
precipitation, and evapotranspiration data have been used to
better interpret temporal soil moisture fluctuations and to
put these into a broader hydrologic perspective. In August
2013, spruce trees within an area of 9 ha were almost
completely removed. To identify the effects of this
deforestation, the relationship between the soil moisture in
the control area (remaining forest) and the deforested area
were studied before and after the deforestation. Changes in
preferential flow occurrence were identified using a sensor
response time analysis of soil moisture measurements before
and after the deforestation where preferential flow was
identified as a non-sequential sequence of sensor response
times within the soil. Using this approach, spatial and
temporal changes in preferential flow occurrence and changes
in factors that affected preferential flow occurrence were
identified. Results of our study reveal an increased wetness
of the deforested area, with the most significant changes in
the upper soil (5 cm). Nonetheless, the relationship between
the mean soil moisture and its standard deviation remained
similar before and after deforestation, which might indicate
that the deforestation measures have not yet caused a
significant change in soil properties at the sensor
locations.},
month = {Jun},
date = {2015-06-13},
organization = {Gordon Research Seminar and Catchment
Conference, Andover,NH (USA), 13 Jun
2015 - 19 Jun 2015},
subtyp = {After Call},
cin = {IBG-3},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {255 - Terrestrial Systems: From Observation to Prediction
(POF3-255)},
pid = {G:(DE-HGF)POF3-255},
typ = {PUB:(DE-HGF)24},
url = {https://juser.fz-juelich.de/record/279229},
}