Kreilein, Heinrich

[["dc.bibliographiccitation.firstpage","122"],["dc.bibliographiccitation.issue","1-2"],["dc.bibliographiccitation.journal","Ecological Modelling"],["dc.bibliographiccitation.lastpage","130"],["dc.bibliographiccitation.volume","212"],["dc.contributor.author","Olchev, A."],["dc.contributor.author","Ibrom, Andreas"],["dc.contributor.author","Ross, Thomas"],["dc.contributor.author","Falk, U."],["dc.contributor.author","Rakkibu, Golam"],["dc.contributor.author","Radler, K."],["dc.contributor.author","Grote, S."],["dc.contributor.author","Kreilein, H."],["dc.contributor.author","Gravenhorst, Gode"],["dc.date.accessioned","2018-11-07T11:17:03Z"],["dc.date.available","2018-11-07T11:17:03Z"],["dc.date.issued","2008"],["dc.description.abstract","An one-dimensional process-based SVAT model (Mixfor-SVAT) was developed to describe energy, water and carbon dioxide exchanges between vegetation canopy and the atmosphere at a local scale. Simulation of the energy, water and CO(2) fluxes in Mixfor-SVAT is based on aggregated description of the physical and biological processes on the leaf, tree (plant) and stand levels that allows to apply this model for prediction of atmospheric fluxes for the different vegetation types from grasslands and agricultural crops to vertically structured mono-specific and mixed forest stands represented by one or by many different tree species, as well as for description of the flux partitioning among different canopy sub-layers and different tree species. Upper boundary conditions of the model are measured or predicted meteorological parameters (air temperature and humidity, wind speed, CO(2) concentration, precipitation rate and global radiation) at some height above a plant canopy within the atmospheric surface layer. For simulation of exchange processes within a multi-specific forest stand Mixfor-SVAT uses both averaged and species specific biophysical parameters of the trees describing their structure (e.g. height, crown shape, stem diameter, root depth) and biological properties (e.g. leaf stomatal conductance, photosynthesis and respiration rates, etc.). Mixfor-SVAT assumes that trees of the different species are evenly distributed over some homogeneous ground surface area and that there are no differences in biophysical properties between the same tree species. Mixfor-SVAT was applied to a natural tropical rainforest in Central Sulawesi, Indonesia. The modelled H(2)O and CO(2) fluxes were compared with results of eddy covariance flux measurements above the forest canopy for the period from October 2003 to February 2005. All necessary biophysical parameters of vegetation and soil were obtained during several intensive field campaigns in 2004-2006. Comparisons showed a good agreement between modelled and measured H(2)O and CO(2) fluxes especially for smoothed daily flux trends. However, a large number of spikes in measured data series caused by some instrumental errors, sensor wetting, changes in the footprint or fast changes in turbulence conditions resulted in some reduction of correlation between modeled and measured fluxes (e.g. r(2) = 0.62 for CO(2) and r(2) = 0.64 for H(2)O fluxes under friction velocity u > 0.3 ms(-1)). The developed Mixfor-SVAT model could be applied for solutions of the different theoretical and applied tasks, e.g. to describe the response of H(2)O and CO(2) budgets of the different forest ecosystems to environmental and land use changes in different time scales, or to recover the long-term records of H(2)O and CO(2) fluxes in the cases of data loss or not reliable measured fluxes. (c) 2007 Elsevier B.V. All rights reserved."],["dc.identifier.doi","10.1016/j.ecolmodel.2007.10.021"],["dc.identifier.isi","000254227100016"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/54724"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.publisher.place","Amsterdam"],["dc.relation.conference","5th European Conference on Ecological Modelling"],["dc.relation.eventlocation","Pushchino, RUSSIA"],["dc.relation.issn","0304-3800"],["dc.relation.orgunit","Abteilung Bioklimatologie"],["dc.title","A modelling approach for simulation of water and carbon dioxide exchange between multi-species tropical rain forest and the atmosphere"],["dc.type","conference_paper"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","6655"],["dc.bibliographiccitation.issue","22"],["dc.bibliographiccitation.journal","Biogeosciences"],["dc.bibliographiccitation.lastpage","6667"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Olchev, A."],["dc.contributor.author","Ibrom, A."],["dc.contributor.author","Panferov, O."],["dc.contributor.author","Gushchina, D."],["dc.contributor.author","Kreilein, H."],["dc.contributor.author","Popov, V."],["dc.contributor.author","Propastin, P."],["dc.contributor.author","June, T."],["dc.contributor.author","Rauf, A."],["dc.contributor.author","Gravenhorst, G."],["dc.contributor.author","Knohl, A."],["dc.date.accessioned","2017-09-07T11:49:05Z"],["dc.date.available","2017-09-07T11:49:05Z"],["dc.date.issued","2015"],["dc.description.abstract","The possible impact of El Niño–Southern Oscillation (ENSO) events on the main components of CO2 and H2O fluxes between the tropical rainforest and the atmosphere is investigated. The fluxes were continuously measured in an old-growth mountainous tropical rainforest in Central Sulawesi in Indonesia using the eddy covariance method for the period from January 2004 to June 2008. During this period, two episodes of El Niño and one episode of La Niña were observed. All these ENSO episodes had moderate intensity and were of the central Pacific type. The temporal variability analysis of the main meteorological parameters and components of CO2 and H2O exchange showed a high sensitivity of evapotranspiration (ET) and gross primary production (GPP) of the tropical rainforest to meteorological variations caused by both El Niño and La Niña episodes. Incoming solar radiation is the main governing factor that is responsible for ET and GPP variability. Ecosystem respiration (RE) dynamics depend mainly on the air temperature changes and are almost insensitive to ENSO. Changes in precipitation due to moderate ENSO events did not have any notable effect on ET and GPP, mainly because of sufficient soil moisture conditions even in periods of an anomalous reduction in precipitation in the region."],["dc.identifier.doi","10.5194/bg-12-6655-2015"],["dc.identifier.gro","3147096"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/4815"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.relation","SFB 990 | A | A03: Untersuchung von Land-Atmosphäre Austauschprozesse in Landnutzungsänderungs-Systemen"],["dc.relation.issn","1726-4189"],["dc.relation.orgunit","Abteilung Bioklimatologie"],["dc.rights","CC BY 3.0"],["dc.subject.gro","sfb990_journalarticles"],["dc.title","Response of CO2 and H2O fluxes in a mountainous tropical rainforest in equatorial Indonesia to El Niño events"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","131"],["dc.bibliographiccitation.issue","1-2"],["dc.bibliographiccitation.journal","Ecological Modelling"],["dc.bibliographiccitation.lastpage","137"],["dc.bibliographiccitation.volume","212"],["dc.contributor.author","Olchev, A."],["dc.contributor.author","Ibrom, A."],["dc.contributor.author","Priess, J."],["dc.contributor.author","Erasmi, S."],["dc.contributor.author","Leemhuis, Constanze"],["dc.contributor.author","Twele, Andre"],["dc.contributor.author","Radler, K. H."],["dc.contributor.author","Kreilein, Heinrich"],["dc.contributor.author","Panferov, Oleg"],["dc.contributor.author","Gravenhorst, Gode"],["dc.date.accessioned","2018-11-07T11:17:04Z"],["dc.date.accessioned","2020-05-11T13:29:09Z"],["dc.date.available","2018-11-07T11:17:04Z"],["dc.date.available","2020-05-11T13:29:09Z"],["dc.date.issued","2008"],["dc.description.abstract","The impact of deforestation and land-use changes on evapotranspiration of mountainous tropical rain forest area in the northern part of the Lore-Lindu National Park (LLNP) in Central Sulawesi (Indonesia) was quantified using a regional process-based SVAT model \"SVAT-Regio\". Description of evapotranspiration of a non-uniform land surface in local and regional scales in SVAT-Regio is based on equations of energy and water balances of individual plants, plant canopy and soil layers for each of many grid cells into which the entire study area is divided. The model uses a multi-layered representation of vegetation cover and soil structure that allows to describe the partitioning of energy and H2O-fluxes among different canopy layers and soil, and to quantify more precisely the total ecosystem fluxes. Selective integration of grid cell fluxes on space and time allows estimating the energy and water fluxes for e.g. ecosystems, catchments or entire study area for different time spans from 1 day to several years. September of 2004 was selected as a test period for modelling experiments. The regional patterns of meteorological parameters were reconstructed using measurements provided by 10 mobile meteorological stations. Ecophysiological parameters for different vegetation types were determined from own measurements as well as from results of previous scientific studies in the area. The present spatial distribution of the different land-use types was described from analysis of LANDSAT ETM+ observations. The spatial pattern of leaf area index (LAI) was derived from analysis of NDVI data (calculated from LANDSAT ETM+ data) and field measurements at key experimental plots. A deforestation scenario (allowing for mainly anthropogenic impacts) which was applied in this study assumes a relatively strong decrease of the areas covered by tropical rain forests, i.e. about 15%, and an increase of agricultural (coffee plantations, corn and rice fields) and urban areas. Moreover, the scenario assumes a small increase of grassland areas as well. The results of modelling experiments show that 15% deforestation of the study area results in relatively small decrease of monthly evapotranspiration by about 2%, transpiration by about 6% and interception evaporation by about 5%, as well as an increase of soil evaporation by about 21%. The evapotranspiration decrease was highest in days with cloudy and rainy weather conditions, and lowest in sunny and dry days. (c) 2007 Elsevier B.V. All rights reserved."],["dc.identifier.doi","10.1016/j.ecolmodel.2007.10.022"],["dc.identifier.isi","000254227100017"],["dc.identifier.scopus","2-s2.0-38949186752"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/65057"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/54725"],["dc.identifier.url","http://www.scopus.com/inward/record.url?eid=2-s2.0-38949186752&partnerID=MN8TOARS"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","0304-3800"],["dc.relation.orgunit","Abteilung Bioklimatologie"],["dc.title","Effects of land-use changes on evapotranspiration of tropical rain forest margin area in Central Sulawesi (Indonesia): Modelling study with a regional SVAT model"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","4405"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Biogeosciences Discussions"],["dc.bibliographiccitation.lastpage","4431"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Olchev, A."],["dc.contributor.author","Ibrom, A."],["dc.contributor.author","Panferov, O."],["dc.contributor.author","Gushchina, D."],["dc.contributor.author","Propastin, P."],["dc.contributor.author","Kreilein, H."],["dc.contributor.author","June, T."],["dc.contributor.author","Rauf, A."],["dc.contributor.author","Gravenhorst, G."],["dc.contributor.author","Knohl, A."],["dc.date.accessioned","2019-07-09T11:42:04Z"],["dc.date.available","2019-07-09T11:42:04Z"],["dc.date.issued","2015"],["dc.description.abstract","The possible impact of El Niño–Southern Oscillation (ENSO) events on the main components of CO2 and H2O fluxes between the tropical rainforest and the atmosphere is investigated. The fluxes were continuously measured in an old-growth mountainous tropical rainforest in Central Sulawesi in Indonesia using the eddy covariance method for the period from January 2004 to June 2008. During this period, two episodes of El Niño and one episode of La Niña were observed. All these ENSO episodes had moderate intensity and were of the central Pacific type. The temporal variability analysis of the main meteorological parameters and components of CO2 and H2O exchange showed a high sensitivity of evapotranspiration (ET) and gross primary production (GPP) of the tropical rainforest to meteorological variations caused by both El Niño and La Niña episodes. Incoming solar radiation is the main governing factor that is responsible for ET and GPP variability. Ecosystem respiration (RE) dynamics depend mainly on the air temperature changes and are almost insensitive to ENSO. Changes in precipitation due to moderate ENSO events did not have any notable effect on ET and GPP, mainly because of sufficient soil moisture conditions even in periods of an anomalous reduction in precipitation in the region."],["dc.description.sponsorship","Open-Access Publikationsfonds 2015"],["dc.identifier.doi","10.5194/bgd-12-4405-2015"],["dc.identifier.fs","616105"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/12761"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/58580"],["dc.language.iso","en"],["dc.relation.issn","1810-6285"],["dc.rights.access","openAccess"],["dc.title","Response of CO2 and H2O fluxes of a mountainous tropical rain forest in equatorial Indonesia to El Niño events"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","284"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Erdkunde"],["dc.bibliographiccitation.lastpage","293"],["dc.bibliographiccitation.volume","61"],["dc.contributor.author","Leemhuis, Constanze"],["dc.contributor.author","Erasmi, Stefan"],["dc.contributor.author","Twele, Andre"],["dc.contributor.author","Kreilein, Heinrich"],["dc.contributor.author","Oltchev, Alexander"],["dc.contributor.author","Gerold, Gerhard"],["dc.date.accessioned","2018-11-07T11:00:57Z"],["dc.date.accessioned","2020-05-11T13:19:35Z"],["dc.date.available","2018-11-07T11:00:57Z"],["dc.date.available","2020-05-11T13:19:35Z"],["dc.date.issued","2007"],["dc.description.abstract","The present land cover of humid tropical catchment areas mainly regulates the flow of vapour to the atmosphere. Therefore land use decisions play an important role for the water balance of a tropical catchment. Studies that relate land cover changes with river discharge changes for humid tropical catchment areas at the mesoscale level are rare. This article applies an integrated remote sensing and hydrological modelling approach to analyse the impact of land cover changes on the water resources of a mesoscale humid tropical catchment. First, a change detection analysis of Landsat/ETM+ satellite images was carried out to quantify land cover changes of the mesoscale Gumbasa River catchment in Central Sulawesi, Indonesia. Thereafter the distributed hydrological model WASIM-ETH was calibrated and validated for the current Landsat/ETM+, scene. The historical Landsat/ETM+ scene was integrated for the hydrological model application as a historical land cover scenario. Further hypothetical total-change scenarios were carried out. The results of the hydrological model scenario application clearly demonstrate a strong relationship between deforestation rates and increasing discharge variability. Especially a significant increase of high water discharges was simulated for the applied scenarios. With regard to the high deforestation rates of the research catchment, one can expect further changes of the water balance."],["dc.identifier.doi","10.3112/erdkunde.2007.03.06"],["dc.identifier.isi","000251117300006"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/65029"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","0014-0015"],["dc.title","Rainforest conversion in Central Sulawesi, Indonesia: Recent development and consequences for river discharge and water resources - An integrated remote sensing and hydrological modelling approach"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","219"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Meteorologische Zeitschrift"],["dc.bibliographiccitation.lastpage","225"],["dc.bibliographiccitation.volume","14"],["dc.contributor.author","Falk, U."],["dc.contributor.author","Ibrom, Andreas"],["dc.contributor.author","Oltchev, A."],["dc.contributor.author","Kreilein, H."],["dc.contributor.author","June, T."],["dc.contributor.author","Rauf, Abdul"],["dc.contributor.author","Merklein, J."],["dc.contributor.author","Gravenhorst, Gode"],["dc.date.accessioned","2018-11-07T08:43:37Z"],["dc.date.available","2018-11-07T08:43:37Z"],["dc.date.issued","2005"],["dc.description.abstract","Rapid conversion of tropical rainforests to agricultural land-use types occurs throughout Indonesia and South-East Asia. We hypothesize that these changes in land-use affect the turbulent heat exchange processes between vegetation and the atmosphere, and the radiative properties of the surface, and therefore, induce an impact on local climate and water flows. As part of the international research project (SFB 552, Stability of Rainforest Margins in Indonesia, STORMA) the turbulent heat fluxes over a cacao agroforestry system (AFS) were investigated, using the eddy covariance technique. These first heat flux observations above a cacao AFS showed an unexpectedly large contribution of the sensible heat flux to the total turbulent heat transport, resulting in an averaged day-time Bowen ratio of beta = H/lambda E approximate to 1. Seasonality of beta did mainly coincide with the seasonal course of precipitation, which amounted to 1970 mm yr(-1) during the investigated period. The findings are compared to invastigations at four neotropical rain forests where daytime beta were substantially smaller than 1. All discussed sites received similar incident short wave radiation, however, precipitation at the neotropical sites was much higher. Our first observations in a nearby Indonesian upland rain forest where precipitation was comparable to that at the cacao AFS showed an intermediate behaviour. Differences in beta between the cacao AFS and the tropical forests are discussed as a consequence of differing precipitation amounts, and albedo. From these comparisons we conclude that conversion from tropical forests to cacao AFS affects the energy fluxes towards increased heating of the day-time convective boundary-layer."],["dc.identifier.doi","10.1127/0941-2948/2005/0025"],["dc.identifier.isi","000230043300018"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/20013"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Gebruder Borntraeger"],["dc.publisher.place","Stuttgart"],["dc.relation.conference","5th Conference on Biometeorology of the German-Meteorological-Society"],["dc.relation.eventlocation","Deutsch Hygiene Museum, Dresden, GERMANY"],["dc.relation.issn","0941-2948"],["dc.title","Energy and water fluxes above a cacao agroforestry system in Central Sulawesi, Indonesia, indicate effects of land-use change on local climate"],["dc.type","conference_paper"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","117"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Meteorologische Zeitschrift"],["dc.bibliographiccitation.lastpage","122"],["dc.bibliographiccitation.volume","14"],["dc.contributor.author","Gravenhorst, Gode"],["dc.contributor.author","Oltchev, A."],["dc.contributor.author","Sogachev, A."],["dc.contributor.author","Ibrom, Andreas"],["dc.contributor.author","Kreilein, H."],["dc.date.accessioned","2018-11-07T08:43:34Z"],["dc.date.available","2018-11-07T08:43:34Z"],["dc.date.issued","2005"],["dc.description.abstract","The effect of a spruce forest in the Solling-hills (Germany) on the concentration of airborne trace compounds in the atmospheric boundary layer is discussed. The discussion is based on field measurements of vertical concentration profiles and vertical fluxes of reactive trace gases and particles in and above a spruce forest and on numerical modelling. Measured SO2-, O-3- and PAN-concentrations are 10 % to 20 % lower near the forest floor than just above the canopy. NO2 is emitted from the forest into the atmospheric boundary-layer and NO is transported both from the atmosphere and from the forest floor into the spruce canopy air space. The net NOx-flux between the atmosphere and this spruce forest can be neglected compared quantitatively to other N-fluxes. Numerical experiments using two models show that a 1000 m long spruce forest reduces the near surface concentration of an airborne trace substance with a deposition velocity of about 0.7 cm/s by up to 6 % as compared to the upwind SO2-concentration. If a forest is replaced by a meadow the SO2-concentration at the former downwind side of a forest increases by about 10 %."],["dc.identifier.doi","10.1127/0941-2948/2005/0011"],["dc.identifier.isi","000230043300004"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/20002"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Gebruder Borntraeger"],["dc.publisher.place","Stuttgart"],["dc.relation.eventlocation","Deutsch Hygiene Museum, Dresden, GERMANY"],["dc.relation.issn","0941-2948"],["dc.title","Forests as protection against airborne immissions"],["dc.type","conference_paper"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","245"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Geography, Environment, Sustainability"],["dc.bibliographiccitation.lastpage","258"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Tiralla, Nina"],["dc.contributor.author","Panferov, Oleg"],["dc.contributor.author","Kreilein, Heinrich"],["dc.contributor.author","Olchev, Alexander"],["dc.contributor.author","Ali, Ashehad A."],["dc.contributor.author","Knohl, Alexander"],["dc.contributor.orcid","0000-0002-7328-306X"],["dc.date.accessioned","2022-03-09T12:38:34Z"],["dc.date.available","2022-03-09T12:38:34Z"],["dc.date.issued","2019"],["dc.description.abstract","Climate change has distinct regional and local differences in its impacts on the land sur face. One of the important parameters determining the climate change signal is the emissivity (ε) of the sur face. In forest-climate interactions, the leaf sur face emissivity plays a decisive role. The accurate determination of leaf emissivities is crucial for the appropriate interpretation of measured energy and matter fluxes between the forest and the atmosphere. In this study, we quantified the emissivity of the five broadleaf tree species Acer pseudoplatanus, Fagus sylvatica, Fraxinus excelsior, Populus simonii and Populus candicans. Measurements of leaf sur face temperatures were conducted under laboratory conditions in a controlled-climate chamber within the temperature range of +8 °C and +32°C. Based on these measurements, broadband leaf emissivities ε (ε for the spectral range of 8-14 µm) were calculated. Average ε8-14 µm was 0.958±0.002 for all species with very little variation among species. In a second step, the soil-vegetation-atmosphere transfer model ‘MixFor-SVAT ’ was applied to examine the effects of ε changes on radiative, sensible and latent energy fluxes of the Hainich forest in Central Germany. Model experiments were driven by meteorological data measured at the Hainich site. The simulations were forced with the calculated ε value as well as with minimum and maximum values obtained from the literature. Significant effects of ε changes were detected. The strongest effect was identified for the sensible heat flux with a sensitivity of 20.7 % per 1 % ε change. Thus, the variability of ε should be considered in climate change studies."],["dc.identifier.doi","10.24057/2071-9388-2018-86"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/114311"],["dc.identifier.url","https://publications.goettingen-research-online.de/handle/2/62623"],["dc.language.iso","en"],["dc.relation.doi","10.24057/2071-9388-2018-86"],["dc.relation.issn","2542-1565"],["dc.relation.issn","2071-9388"],["dc.relation.orgunit","Abteilung Bioklimatologie"],["dc.subject.gro","Leaf emissivity"],["dc.title","Quantification Of Leaf Emissivities Of Forest Species: Effects On Modelled Energy And Matter Fluxes In Forest Ecosystems"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","111"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Flora - Morphology, Distribution, Functional Ecology of Plants"],["dc.bibliographiccitation.lastpage","117"],["dc.bibliographiccitation.volume","202"],["dc.contributor.author","Dietz, Johannes"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Hölscher, Dirk"],["dc.contributor.author","Kreilein, Heinrich"],["dc.date.accessioned","2017-09-07T11:45:47Z"],["dc.date.available","2017-09-07T11:45:47Z"],["dc.date.issued","2007"],["dc.description.abstract","In tropical montane forests, the wetness of leaf surfaces is an important parameter which may influence gas exchange, growth and vitality of leaves, and forest productivity. Thirty surface wetness sensors were operated during May–August 2004 in a vertical profile inside an old-growth lower montane rain forest of Central Sulawesi, Indonesia, with the objective to analyse spatial and temporal patterns of surface wetness and to relate wetness duration to the microclimate inside the stand. The canopy was wet during 25–30% of time in this study period. In a dry period, however, surface wetness lasted for only 5% of the time, whereas the canopy was wet during 45–55% of the time in a rainy period. In the lower shade canopy, surface wetness continuously existed for periods of up to 22 h and more, although rainfall occurred only during afternoon thunderstorms of limited duration. The long duration of surface wetness has implications for forest interception models, which assume a complete drying of the canopy between subsequent rainfall events. In periods with rainfall, leaf wetness typically occurred in the afternoon, evening and first half of the night because intercepted water persisted on the leaves until about midnight. In dry periods, in contrast, surface wetness was mainly caused by dewfall in the second half of the night, and it occurred mainly in the uppermost canopy where radiative heat losses resulted in a substantial under-cooling of the leaves. Ecophysiological and hydrological importance is suggested by the long duration of surface wetting in this stand with possible implications for gas exchange, leaf growth, leaf colonization by epiphylls and the forest water balance."],["dc.identifier.doi","10.1016/j.flora.2006.03.004"],["dc.identifier.gro","3149100"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5748"],["dc.language.iso","en"],["dc.notes.intern","Hoelscher Crossref import"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.relation.issn","0367-2530"],["dc.title","Vertical patterns and duration of surface wetness in an old-growth tropical montane forest, Indonesia"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]