Citation:

PANGAEA.817933

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Abstract:

The Rieseberger Moor is a fen, 145 hectares in size, situated about 20 km east of Brunswick (Braunschweig), Lower Saxony, Germany. Peat was dug in the fen – with changing intensity - since the mid-18th century until around AD 1955. According to Schneekloth & Schneider (1971) the remaining peat (fen and wood peat) is predominantly 1.5 to 2 m thick (maximum 2.7 m). Part of the fen - now a nature reserve (NSG BR 005) - is wooded (Betula, Salix, Alnus). For more information on the Rieseberger Moor see http://de.wikipedia.org/wiki/Rieseberger_Moor.

Willi Selle was the first to publish pollen diagrams from this site (Selle 1935, profiles Rieseberger Torfmoor I and II).

This report deals with a 2.2 m long profile from the wooded south-eastern part of the fen consisting of strongly decomposed fen peat taken A.D. 1965 and studied by pollen analysis in the same year. The peat below 1.45 m contained silt and clay, samples 1.48 and 1.58 m even fine sand. These samples had to be treated with HF (hydrofluoric acid) in addition to the treatment with hot caustic potash solution. The coring ended in sandy material.

The new pollen data reflect the early part of the known postglacial development of the vegetation of this area: the change from a birch dominated forest to a pine forest and the later spreading of Corylus and of the thermophilous deciduous tree genera Quercus, Ulmus, Tilia and Fraxinus followed by the expansion of Alnus.

The new data are in agreement with Selle's results, except for Alnus, which in Selle's pollen diagram II shows high values (up to 42% of the arboreal pollen sum) even in samples deposited before Corylus and Quercus started to spread. On contrary the new pollen diagram shows that alder pollen – although present in all samples - is frequent in the three youngest pollen spectra only. A period with dominating Alnus as seen in the uppermost part of Selle's pollen diagrams is missing. The latter is most likely the result of peat cutting at the later coring site, whereas the early, unusually high alder values of Selle's pollen study are probably caused by contamination of the pollen samples with younger peat. Selle took peat samples usually with a “Torfbohrer” (= Hiller sampler). This side-filling type of sampler with an inner chamber and an outer loose jacket offers - if not handled with appropriate care - ample opportunities to contaminate older peat with carried off younger material.

Pollen grains of Fagus (2 % of the arboreal pollen sum) were found in two samples only, namely in the uppermost samples of the new profile (0.18 m) and of Selle's profile I (0.25 m). If this pollen is autochthonous, with other words: if this surface-near peat was not disturbed by human activities, the Fagus pollen indicates an Early Subboreal age of this part of the profile.

The accumulation of the Rieseberg peat started during the Preboreal. Increased values of Corylus, Quercus and Ulmus indicate that sample 0.78 m of the new profile is the oldest Boreal sample. The high Alnus values prove the Atlantic age of the younger peat. Whether Early Subboreal peat exists at the site is questionable, but evidently none of the three profiles reaches to Late Subboreal time, when Fagus spread in the region. Did peat-growth end during the Subboreal? Did younger peat exist, but got lost by peat cutting or has younger peat simply not yet been found in the Rieseberg fen? These questions cannot be answered with this study.

The temporary decline of the curve of Pinus for the benefit of Betula during the Preboreal, unusual for this period, is contemporaneous with the deposition of sand (Rieseberger Moor II, 1.33 - 1,41 m; samples 1.48 and 1.58 m of the new profile) and must be considered a local phenomenon.

Literature:

Schneekloth, Heinrich & Schneider, Siegfried (1971). Die Moore in Niedersachsen. 2. Teil. Bereich des Blattes Braunschweig der Geologischen Karte der Bundesrepublik Deutschland (1:200000). - Schriften der wirtschaftswissenschaftlichen Gesellschaft zum Studium Niedersachsens e.V. Reihe A I., Band 96, Heft 2, 83 Seiten, Göttingen.

Selle, Willi (1935) Das Torfmoor bei Rieseberg. – Jahresbericht des Vereins für Naturwissenschaft zu Braunschweig, 23, 46-58, Braunschweig.

Coverage:

Latitude: 52.284440 * Longitude: 10.813890

Date/Time Start: 1965-04-27T00:00:00 * Date/Time End: 1965-04-27T00:00:00

Minimum DEPTH, sediment/rock: 0.18 m * Maximum DEPTH, sediment/rock: 2.16 m

Event(s):

Rieseberger_Moor * Latitude: 52.284440 * Longitude: 10.813890 * Date/Time: 1965-04-27T00:00:00 * Elevation: 95.0 m * Location: Lower Saxony, Northern Germany * Method/Device: Dachnowski corer (DACH) * Comment: fen and wood peat

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m			Geocode
2	Pinus	Pin	#	Grüger, Eberhard	Counting, palynology
3	Picea	Pic	#	Grüger, Eberhard	Counting, palynology
4	Ephedra distachya-type	Eph.d-T	#	Grüger, Eberhard	Counting, palynology
5	Ephedra fragilis-type	Eph.f-T	#	Grüger, Eberhard	Counting, palynology
6	Hippophae	Hpp	#	Grüger, Eberhard	Counting, palynology
7	Juniperus	Jun	#	Grüger, Eberhard	Counting, palynology
8	Quercus	Que	#	Grüger, Eberhard	Counting, palynology
9	Ulmus	Ulm	#	Grüger, Eberhard	Counting, palynology
10	Fraxinus	Frx	#	Grüger, Eberhard	Counting, palynology
11	Tilia	Til	#	Grüger, Eberhard	Counting, palynology
12	Hedera	Hed	#	Grüger, Eberhard	Counting, palynology
13	Viscum	Vis	#	Grüger, Eberhard	Counting, palynology
14	Fagus	Fag	#	Grüger, Eberhard	Counting, palynology
15	Carpinus	Car	#	Grüger, Eberhard	Counting, palynology
16	Salix	Sal	#	Grüger, Eberhard	Counting, palynology
17	Alnus	Aln	#	Grüger, Eberhard	Counting, palynology
18	Betula	Bet	#	Grüger, Eberhard	Counting, palynology
19	Corylus	Cor	#	Grüger, Eberhard	Counting, palynology
20	Apiaceae	Apiae	#	Grüger, Eberhard	Counting, palynology
21	Artemisia	Art	#	Grüger, Eberhard	Counting, palynology
22	Boraginaceae	Borae	#	Grüger, Eberhard	Counting, palynology
23	Brassicaceae	Braae	#	Grüger, Eberhard	Counting, palynology
24	Caryophyllaceae	Cphae	#	Grüger, Eberhard	Counting, palynology
25	Chenopodiaceae	Cheae	#	Grüger, Eberhard	Counting, palynology
26	Calluna	Cal	#	Grüger, Eberhard	Counting, palynology
27	Centaurea cyanus	Cen.c	#	Grüger, Eberhard	Counting, palynology
28	Centaurea scabiosa-type	Cen.s-T	#	Grüger, Eberhard	Counting, palynology
29	Compositae	Compae	#	Grüger, Eberhard	Counting, palynology
30	Cyperaceae	Cypae	#	Grüger, Eberhard	Counting, palynology
31	Epilobium	Epl	#	Grüger, Eberhard	Counting, palynology
32	Ericaceae	Eriae	#	Grüger, Eberhard	Counting, palynology	p.p.
33	Fallopia convolvulus	Fal.c	#	Grüger, Eberhard	Counting, palynology
34	Filipendula	Flp	#	Grüger, Eberhard	Counting, palynology
35	Geum-type	Geu-T	#	Grüger, Eberhard	Counting, palynology
36	Potentilla-type	Pti-T	#	Grüger, Eberhard	Counting, palynology
37	Gentianaceae	Genae	#	Grüger, Eberhard	Counting, palynology
38	Helianthemum nummularium-type	Hel.n-T	#	Grüger, Eberhard	Counting, palynology
39	Lysimachia	Lys	#	Grüger, Eberhard	Counting, palynology
40	Mentha-type	Men-T	#	Grüger, Eberhard	Counting, palynology
41	Menyanthes trifoliata	Mey.t	#	Grüger, Eberhard	Counting, palynology
42	Mercurialis annua	Mer.a	#	Grüger, Eberhard	Counting, palynology
43	Parnassia palustris	Par.p	#	Grüger, Eberhard	Counting, palynology
44	Plantago lanceolata-type	Pla.l-T	#	Grüger, Eberhard	Counting, palynology
45	Poaceae	Poac	#	Grüger, Eberhard	Counting, palynology
46	Polemonium coeruleum	Pol.coe	#	Grüger, Eberhard	Counting, palynology
47	Potamogeton natans-type	P. natans-T	#	Grüger, Eberhard	Counting, palynology
48	Ranunculus acris-type	Ran.a-T	#	Grüger, Eberhard	Counting, palynology
49	Rosaceae	Rosae	#	Grüger, Eberhard	Counting, palynology	p.p.
50	Rubiaceae	Rubae	#	Grüger, Eberhard	Counting, palynology
51	Rumex	Rum	#	Grüger, Eberhard	Counting, palynology
52	Sanguisorba officinalis	San.o	#	Grüger, Eberhard	Counting, palynology
53	Saxifraga aizoides-type	Sax.a-T	#	Grüger, Eberhard	Counting, palynology
54	Saxifraga oppositifolia-type	Sax.o-T	#	Grüger, Eberhard	Counting, palynology
55	Thalictrum	Tha	#	Grüger, Eberhard	Counting, palynology
56	Typha latifolia-type	Typ.l-T	#	Grüger, Eberhard	Counting, palynology
57	Varia	Varia	#	Grüger, Eberhard	Counting, palynology
58	Pollen indeterminata	Pollen indet	#	Grüger, Eberhard	Counting, palynology
59	Equisetum	Equ	#	Grüger, Eberhard	Counting, palynology
60	Lycopodium clavatum-type	Lyc.c-T	#	Grüger, Eberhard	Counting, palynology
61	Polypodiaceae	Pocae	#	Grüger, Eberhard	Counting, palynology	p.p.
62	Polypodium vulgare	Ppd.v	#	Grüger, Eberhard	Counting, palynology
63	Equisetum	Equ	#	Grüger, Eberhard	Counting, palynology
64	Sphagnum	Sph	#	Grüger, Eberhard	Counting, palynology

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

1323 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Depth sed [m]	2 Pin [#]	3 Pic [#]	4 Eph.d-T [#]	5 Eph.f-T [#]	6 Hpp [#]	7 Jun [#]	8 Que [#]	9 Ulm [#]	10 Frx [#]	11 Til [#]	12 Hed [#]	13 Vis [#]	14 Fag [#]	15 Car [#]	16 Sal [#]	17 Aln [#]	18 Bet [#]	19 Cor [#]	20 Apiae [#]	21 Art [#]	22 Borae [#]	23 Braae [#]	24 Cphae [#]	25 Cheae [#]	26 Cal [#]	27 Cen.c [#]	28 Cen.s-T [#]	29 Compae [#]	30 Cypae [#]	31 Epl [#]	32 Eriae [#] (p.p.)	33 Fal.c [#]	34 Flp [#]	35 Geu-T [#]	36 Pti-T [#]	37 Genae [#]	38 Hel.n-T [#]	39 Lys [#]	40 Men-T [#]	41 Mey.t [#]	42 Mer.a [#]	43 Par.p [#]	44 Pla.l-T [#]	45 Poac [#]	46 Pol.coe [#]	47 P. natans-T [#]	48 Ran.a-T [#]	49 Rosae [#] (p.p.)	50 Rubae [#]	51 Rum [#]	52 San.o [#]	53 Sax.a-T [#]	54 Sax.o-T [#]	55 Tha [#]	56 Typ.l-T [#]	57 Varia [#]	58 Pollen indet [#]	59 Equ [#]	60 Lyc.c-T [#]	61 Pocae [#] (p.p.)	62 Ppd.v [#]	63 Equ [#]	64 Sph [#]
0.18	18	3	0	0	0	0	42	6	6	10	0	0	8	2	5	172	95	30	1	2	0	2	1	1	32	1	1	2	58	0	0	0	0	0	0	0	0	0	0	0	0	0	1	60	0	0	0	2	17	1	0	0	0	0	2	2	2	0	0	75	1	0	26
0.28	127	1	0	0	0	0	27	17	11	16	0	1	0	0	7	177	112	47	1	2	0	0	0	1	1	0	0	4	120	0	0	0	0	0	0	0	0	1	0	0	1	0	0	28	0	0	0	0	3	0	0	0	0	1	1	0	3	0	0	566	0	0	3
0.38	114	0	0	0	0	0	49	29	6	10	0	1	0	0	5	96	52	68	9	1	0	0	1	0	1	0	0	3	103	0	3	0	0	0	0	0	0	1	0	0	0	0	0	52	0	0	1	0	14	1	0	0	0	1	1	1	5	0	0	171	1	0	19
0.48	68	0	0	0	0	0	31	18	2	7	1	0	0	0	1	31	251	74	2	2	0	0	0	0	2	0	0	0	50	0	0	0	1	0	0	0	0	0	0	0	0	0	0	27	0	0	0	0	0	0	0	0	0	0	3	0	0	0	1	413	0	0	20
0.58	190	0	0	0	0	0	29	24	0	7	1	1	0	0	5	14	153	150	1	1	0	0	0	0	1	0	0	1	140	0	0	0	1	0	0	0	0	1	0	0	0	0	0	6	0	0	0	2	1	0	0	0	0	0	1	3	0	0	0	274	0	0	3
0.68	167	0	0	0	0	0	20	15	1	1	0	0	0	0	16	8	142	108	0	2	0	0	0	0	0	0	0	1	141	0	1	0	2	0	0	0	0	0	0	0	0	0	0	22	0	0	0	1	2	0	0	0	0	0	3	0	5	0	0	170	0	0	3
0.78	347	0	0	0	0	0	48	32	0	1	1	0	0	0	17	12	104	256	4	2	0	0	0	0	1	0	0	1	347	0	0	0	3	0	1	0	0	1	0	0	0	0	0	47	0	0	0	0	0	0	0	0	0	1	8	1	15	0	0	200	1	0	7
0.88	344	0	0	0	0	0	1	1	1	0	0	0	0	0	4	2	83	6	2	3	0	0	0	0	0	0	0	1	90	0	0	0	1	0	0	0	0	1	0	1	0	0	0	46	0	0	0	2	3	0	0	0	0	1	5	1	6	0	0	285	0	0	1
0.98	351	0	0	0	0	1	0	1	0	0	0	0	0	0	7	9	86	2	1	0	1	1	1	0	0	0	0	3	130	0	0	0	1	0	0	0	0	0	0	1	0	0	0	35	0	0	0	1	1	1	0	0	0	0	3	1	7	1	0	215	0	1	2
1.08	413	0	1	0	0	1	0	0	0	1	0	0	0	0	3	8	51	5	0	1	0	0	1	0	0	0	0	0	48	0	0	0	0	0	0	0	0	0	0	1	0	0	0	13	0	0	1	0	0	0	0	0	0	0	16	3	4	2	0	311	0	2	0
1.18	303	0	1	0	0	0	0	0	0	0	0	0	0	0	6	4	144	6	1	3	0	0	1	1	0	0	0	0	103	0	0	0	3	0	1	0	0	0	0	1	0	0	0	22	0	0	0	3	0	0	0	0	0	0	17	2	0	2	0	103	0	2	0
1.28	300	0	0	0	0	0	0	0	0	1	0	0	0	0	17	5	110	8	1	7	0	0	0	1	1	0	0	1	66	0	0	0	12	0	4	0	0	0	1	0	0	0	0	30	0	0	1	1	2	1	0	0	0	2	15	2	2	19	0	26	0	19	0
1.38	406	0	1	0	0	2	1	0	1	0	0	0	0	0	3	3	47	6	0	6	0	0	0	0	0	0	0	1	31	1	0	0	8	0	0	0	0	0	0	0	0	0	0	20	0	0	1	2	1	0	0	0	0	1	39	2	2	18	0	137	0	18	2
1.48	114	0	0	1	0	3	0	0	0	0	0	0	0	0	35	19	251	22	0	5	0	1	1	3	0	0	0	1	94	0	9	0	1	0	0	1	0	0	0	0	0	0	0	34	0	0	3	1	1	0	0	0	0	4	1	1	4	3	0	0	0	3	1
1.58	307	0	0	0	0	0	2	0	0	0	0	0	0	0	6	23	320	36	1	6	0	4	1	2	0	0	0	1	200	1	4	0	2	0	0	0	0	0	0	2	0	0	0	58	0	0	0	1	0	0	0	0	0	1	3	0	3	0	0	2	0	0	4
1.68	277	0	0	0	0	1	1	0	0	0	0	0	0	0	7	3	123	17	1	7	0	0	1	1	0	0	0	0	310	1	2	0	4	0	0	0	0	0	0	10	0	0	0	53	0	0	0	0	1	1	0	0	0	3	2	1	2	1	0	7	0	1	12
1.77	210	0	0	0	0	0	1	1	0	1	0	0	0	0	13	2	150	3	2	7	0	0	4	1	0	0	0	0	172	0	1	0	1	0	1	0	0	0	1	0	0	0	0	43	0	0	0	0	1	0	1	1	0	1	1	2	5	0	0	17	0	0	0
1.88	85	0	0	0	0	1	1	0	1	0	0	0	0	0	42	10	164	4	5	9	0	0	4	0	0	0	1	0	434	0	2	0	0	2	0	0	1	0	0	0	0	0	0	42	1	0	0	0	6	0	0	1	0	15	0	3	15	1	0	5	0	1	0
1.97	93	0	0	0	2	2	1	0	0	0	0	0	0	0	36	13	147	8	0	12	0	0	3	0	1	0	0	0	310	0	0	0	3	0	1	0	0	0	0	0	0	0	0	80	0	0	0	2	6	0	0	0	1	12	1	4	14	2	0	6	0	2	0
2.08	84	0	1	0	1	3	3	1	0	1	0	0	0	0	60	5	71	2	5	14	0	1	15	1	1	0	0	7	370	0	0	0	0	1	0	0	5	0	0	0	0	0	0	138	0	40	0	0	14	0	0	1	0	9	0	3	23	1	0	13	0	1	1
2.16	82	1	0	0	0	1	2	0	0	1	0	0	0	0	78	33	188	2	0	5	0	2	0	2	1	0	0	0	904	4	0	1	0	0	0	0	0	0	0	0	0	2	0	73	0	128	3	5	9	0	0	0	0	0	0	3	33	1	0	3	0	1	2