TY  - JOUR
A1  - Zimmermann, Alexander
A1  - Germer, Sonja
A1  - Neill, Christopher
A1  - Krusche, Alex V.
A1  - Elsenbeer, Helmut
T1  - Spatio-temporal patterns of throughfall and solute deposition in an open tropical rain forest
Y1  - 2008
UR  - http://www.sciencedirect.com/science/journal/00221694
U6  - https://doi.org/10.1016/j.jhydrol.2008.07.028
SN  - 0022-1694
ER  - 
TY  - JOUR
A1  - Zimmermann, Beate
A1  - Elsenbeer, Helmut
T1  - Spatial and temporal variability of soil saturated hydraulic conductivity in gradients of disturbance
Y1  - 2008
UR  - http://www.sciencedirect.com/science/journal/00221694
U6  - https://doi.org/10.1016/j.jhydrol.2008.07.027
SN  - 0022-1694
ER  - 
TY  - JOUR
A1  - Grimm, Rosina
A1  - Behrens, T.
A1  - Märker, Michael
A1  - Elsenbeer, Helmut
T1  - Soil organic carbon concentrations and stocks on Barro Colorado Island : digital soil mapping using random forests analysis
Y1  - 2008
UR  - http://si-pddr.si.edu/jspui/bitstream/10088/8584/1/ Grimm_et_al_Soil_organic_carbon_concentrations_and_stocks_on_B.pdf
U6  - https://doi.org/10.1016/j.geoderma.2008.05.008
SN  - 0016-7061
ER  - 
TY  - JOUR
A1  - Barthold, Frauke Katrin
A1  - Stallard, Robert F.
A1  - Elsenbeer, Helmut
T1  - Soil nutrient-landscape relationships in a lowland tropical rainforest in Panama
N2  - Soils play a crucial role in biogeochemical cycles as spatially distributed sources and sinks of nutrients. Any spatial patterns depend on soil forming processes, our understanding of which is still limited, especially in regards to tropical rainforests. The objective of our study was to investigate the effects of landscape properties, with an emphasis on the geometry of the land surface, on the spatial heterogeneity of soil chemical properties, and to test the suitability of soil-landscape modeling as an appropriate technique to predict the spatial variability of exchangeable K and Mg in a humid tropical forest in Panama. We used a design-based, stratified sampling scheme to collect soil samples at 108 sites on Barro Colorado Island, Panama. Stratifying variables are lithology, vegetation and topography. Topographic variables were generated from high-resolution digital elevation models with a grid size of 5 m. We took samples from five depths down to I m, and analyzed for total and exchangeable K and Mg. We used simple explorative data analysis techniques to elucidate the importance of lithology for soil total and exchangeable K and Mg. Classification and Regression Trees (CART) were adopted to investigate importance of topography, lithology and vegetation for the spatial distribution of exchangeable K and Mg and with the intention to develop models that regionalize the point observations using digital terrain data as explanatory variables. Our results suggest that topography and vegetation do not control the spatial distribution of the selected soil chemical properties at a landscape scale and lithology is important to some degree. Exchangeable K is distributed equally across the study area indicating that other than landscape processes, e.g. biogeochemical processes, are responsible for its spatial distribution. Lithology contributes to the spatial variation of exchangeable Mg but controlling variables could not be detected. The spatial variation of soil total K and Mg is mainly influenced by lithology.
Y1  - 2008
UR  - http://si-pddr.si.edu/dspace/bitstream/10088/7790/1/Barthold_soil_nutrient_landscape_r.pdf
U6  - https://doi.org/10.1016/j.foreco.2007.09.089
SN  - 0378-1127
ER  - 
TY  - JOUR
A1  - Chaves, Joaquín E.
A1  - Neill, Christopher
A1  - Germer, Sonja
A1  - Neto, Sérgio Gouveia
A1  - Krusche, Alex V.
A1  - Elsenbeer, Helmut
T1  - Land management impacts on runoff sources in small amazon watersheds
Y1  - 2008
UR  - http://www3.interscience.wiley.com/journal/4125/home?CRETRY=1&SRETRY=0
U6  - https://doi.org/10.1002/hyp.6803
SN  - 0885-6087
ER  - 
TY  - JOUR
A1  - Zimmermann, Beate
A1  - Zehe, Erwin
A1  - Hartmann, N. K.
A1  - Elsenbeer, Helmut
T1  - Analyzing spatial data : an assessment of assumptions, new methods, and uncertainty using soil hydraulic data
Y1  - 2008
SN  - 0043-1397
ER  -