TRACE Tree Rings Archaeology Climatology Ecology

More documents

Recommendations

Info

lot of debris-flow events can be seen between 1940 and ca. 1960. After 1976, only smallscale events involving a small number of trees could be determined, which can be explained by the protective constructions that have been built between 1976 and 1978. The combination of dendrogeomorphological analysis and the geomorphic map allowed the elaboration of 12 formerly active flow tracks. Discussion The study closed the data gap between 1907 and 1987 by 28 event years. Our data proof that the Bruchji torrent has been active all the time but the debris-flow events have not been recorded. Furthermore, the study shows that the combination of tree-ring analysis and geomorphic mapping is a valuable tool for reconstructing the activity of a debris-flow torrent. The mapping helped to identify formerly active flow tracks. It must be taken into account that this study shows only a minimum-frequency for debris-flow events in the Bruchji torrent. Events not leaving the channel or not influencing trees strongly enough, cannot be identified and therefore do not appear in the frequency. Nevertheless, 39 event years could be established, which makes the combination of dendrogeomorphology and geomorphic mapping a valuable tool for the reconstruction of past debris-flow activity. References Alestalo, J (1971): Dendrochronological interpretation of geomorphic processes. Fennia 105: 1-140 Braam, R.R., Weiss, E.E.J. & P.A. Burrough (1987): Spatial and temporal analysis of mass movement using dendrochronology. CATENA 14: 573-584 Cook, E.R. & L. Kairiukstis (1990): Methods of Dendrochronology. Applications in the Environmental Sciences. Kluwer Academic Publishers, London: 394 p. Costa, J.E. (1984): Physical Geomorphology of Debris Flows. Developments and Applications of Geomorphology, Springer-Verlag, Berlin and New York: 268-317 Dikau, R., Gärtner, H., Holl, B., Kienholz, H., Mani, P. & M. Zimmermann (1996): Untersuchungen zur Murgangaktivität im Mattertal, Wallis, Schweiz. In: INTERPRAEVENT 1996, Tagungspublikation Bd.1, p.397-408. Gärtner, H (1996): Untersuchungen zu Geschwindigkeit und Volumen von Murgängen im Mattertal, Wallis, Schweiz, in den Jahren 1993 und 1994 - Ein Beitrag zur Klimafolgenund Naturgefahrenforschung. Unveröffentlichte Diplomarbeit des Geographischen Instituts der Universität Heidelberg. Gemeinde Naters (2001): Daten zu den baulichen Massnahmen am Bruchji. Unveröffentlichtes Dokument der Gemeinde Naters. Johnson, A.M. (1970): Physical Processes in Geology. Freeman & Cooper, San Francisco, California. Johnson, A.M. & J.R. Rodine (1984): Debris flow. D. Brunsden and D. B. Prior, Slope Instability. Wiley, New York, Ch. 8. 29
Jossen, E. (2000): Naters – Das grosse Dorf im Wallis. Rotten Verlag, Visp. Kienholz, H. & B. Krummenacher (1995): Symbolbaukasten zur Kartierung der Phänomene. Bundesamt für Wasserwirtschaft, Bundesamt für Umwelt, Wald und Landschaft, Bern. Leser, H & G. Stäblein (1975): Geomorphologische Kartierung. Institut für Physische Geographie der Freien Universtiät Berlin: 254 p. Pierson, T.C. & J.E. Costa (1987): A rheologic classification of subaerial sediment - water flows. Rev. Eng. Geol., VII: 1-12 Shroder, J.F.Jr (1980): Dendrogeomorphology: Review and new techniques of tree-ring dating. Progress in Physical Geography 4: 161-188 30
Page 1 and 2: Forschungszentrum Jülich in der He
Page 3 and 4: Schriften des Forschungszentrums J
Page 5 and 6: Bibliographic information published
Page 8 and 9: CONTENTS SECTION 1 ECOLOGY A. Bräu
Page 10: T. Vernimmen and U. Sass-Klaassen:
Page 13 and 14: Tree-ring studies in the Dolpo-Hima
Page 15 and 16: Rara MLD (Abies) Rara RW (Abies) Ts
Page 17 and 18: Cook, E.R., Krusic, P.J. & P.D. Jon
Page 19 and 20: Material and methods In the first p
Page 21 and 22: Correlations for all trees (no site
Page 23 and 24: Acknowledgements The authors wish t
Page 25 and 26: Results and interpretation Species
Page 27 and 28: Figure 3: Multitemporal maps of est
Page 30 and 31: SECTION 2 GEOMORPHOLOGY
Page 32 and 33: Zurich Geneva Study site Zermatt Fi
Page 36 and 37: Changes in growth rates and wood an
Page 38 and 39: Growth reductions and eccentricity
Page 40 and 41: 40% of all trees in the landslide a
Page 42 and 43: Figure 1: Location of study areas H
Page 44 and 45: Ai− rBi Eccentricity for year i i
Page 46 and 47: The event frequency per year for th
Page 48: Shroder, J.F. (1980): Dendrogeomorp
Page 51 and 52: Temporal and spatial variability of
Page 53 and 54: 120 100 80 (Dlink/Dmax)*100 60 Uppe
Page 55 and 56: Figure 6: Results of stepwise clust
Page 57 and 58: Figure 8: Forest types and forest d
Page 59 and 60: The first principal component of a
Page 61 and 62: Figure 2: Correlations of the 1 st
Page 63 and 64: NAO and Tree Rings - A dendroclimat
Page 65 and 66: 5°E 10°E 15°E 50°N 45°N Figure
Page 67 and 68: The smaller bars show the number of
Page 69 and 70: a b c d Significant correlating are
Page 71 and 72: Neuwirth, B., Esper, J., Schweingru
Page 73 and 74: Unterspreewald,Brandenburg,Germany
Page 75 and 76: Unterspreewald, Brandenburg, German
Page 77 and 78: Leuschner, H.H., Delorme A. & H.-C.
Page 79 and 80: Figure 1: Location of the monitorin
Page 81 and 82: Figure 3: Examples of the distribut
Page 83 and 84: On the potential of cedar forests i
Page 85 and 86:
At every site, two cores per tree w
Page 87 and 88:
Maximum replications are reached in
Page 89 and 90:
Schweingruber, F.H., Eckstein, D.,
Page 91 and 92:
developed that can be used to study
Page 93 and 94:
4 3 2 1 0 -1 -2 normalized Schmidha
Page 95 and 96:
This value is based on the fact tha
Page 97 and 98:
Stokes, M.A. & T.L. Smiley (1968):
Page 99 and 100:
The use of stable isotope dendrochr
Page 101 and 102:
3.0 2.5 Z74 2.0 1.5 1.0 0.5 0.0 3.0
Page 103 and 104:
Conclusions The combined stable car
Page 105 and 106:
The climatic signal in oxygen isoto
Page 107 and 108:
Results Figure 2 shows the raw ring
Page 109 and 110:
Secondly, the records are short and
Page 111 and 112:
Jouzel, J., Hoffmann, G., Koster, R
Page 113 and 114:
Although the difference between min
Page 116 and 117:
SECTION 5 PALAEO-ENVIRONMENTS
Page 118 and 119:
Results and discussion Of 59 oaks a
Page 120:
Acknowledgements This research was
Page 123 and 124:
Great efforts on small woods Analys
Page 125 and 126:
Some 250 of them - mainly beeches (
Page 127 and 128:
References Billamboz ,A. (1990): Da
Page 129 and 130:
coefficient can be expected from in
Page 131 and 132:
country region covered by theCATRAS
Page 133 and 134:
Figure 2: Map of the Netherlands an
Page 135 and 136:
Jansma, E., Sass-Klaassen, U., de V
Page 137 and 138:
The aim of the current study is to
Page 139 and 140:
Figure 1: Map of archaeological sit
Page 141 and 142:
0.8 correlation coefficient (r) 0.4
Page 143 and 144:
Acknowledgements We would like to e
Page 145 and 146:
Figure 2: 17th century forgery (Mus
Page 147 and 148:
1400 1450 1500 1550 1600 1650 1700
Page 149 and 150:
Table 2 - Average annual-growth ind
Page 151 and 152:
Conclusion The data set we studied
Page 153 and 154:
Figure 1: Collapsed foundation (Pho
Page 155 and 156:
A list of the archaeological sites
Page 157 and 158:
personal communication) believe tha
Page 159 and 160:
Table 4: Success rates of the dendr
Page 161 and 162:
wood with no strong common tree-rin
Page 163 and 164:
Jansma, E. (1996): An 1100-Year Tre
Page 165 and 166:
Malacochronology, the application o
Page 167 and 168:
Fladen Grounds 100 m Norway 30 m UK
Page 169 and 170:
higher with the chronology of growt
Page 171 and 172:
0 140 200 growth index 120 100 80 6
Page 173 and 174:
an underlying mechanism but demonst
Page 175 and 176:
Witbaard, R., Jenness, M.I., Van de
Page 177 and 178:
TRACE 2003 Utrecht (NL) 1 st -3 rd
Page 179 and 180:
TRACE 2003 Utrecht (NL) 1 st -3 rd
Page 181 and 182:
Schriften des Forschungszentrums J
Page 183 and 184:
Page 185 and 186:
Page 187:
Forschungszentrum Jülich in der He
show all

TRACE Tree Rings Archaeology Climatology Ecology

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?