Citation:

PANGAEA.935586

Name: Bulk organic matter composition, n-alkane distribution patterns, and compound-specific stable isotope compositions of modern surface sediments and plants of South Africa's largest freshwater wetland
Published: 2021-09-08
License: https://creativecommons.org/licenses/by/4.0/
Keywords: d13C; dD; n-alkanes; organic matter; plant waxes; Rock-Eval; South Africa; wetland

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Published: 2021-09-08 • DOI registered: 2021-11-16

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Abstract:

Surface sediments (n=41) reflecting modern times (uppermost 10 cm) were collected during a November/December 2018 field campaign along the course of the Mkhuze River and a transect into Lake St. Lucia (KwaZulu Natal Province, South Africa). In addition, plant species (n=10) were collected based on previous reports of dominant vegetation communities and local occurrences. All samples were extracted soon after with a mixture of dichloromethane and methanol (9:1), purified, and fractionated. The apolar fraction was finally analyzed for its n-alkane concentrations and corresponding compound-specific carbon and hydrogen isotope compositions. Sub-samples of the surface sediments were also analyzed for (i) organic matter content (total organic carbon) and composition (d13C, carbon-to-nitrogen ratio) after decalcification, and (ii) for thermal indices (Hydrogen Index, R-index, I-index) using Rock-Eval analyses. The study's objective was to evaluate the most extensive freshwater wetland system in South Africa regarding its current condition and functioning by identifying the origin and transport pathways of sedimentary organic matter.

Keyword(s):

d13C; dD; n-alkanes; organic matter; plant waxes; Rock-Eval; South Africa; wetland

Related to:

Gensel, Julia; Humphries, Marc; Zabel, Matthias; Sebag, David; Hahn, Annette; Schefuß, Enno (2022): Origin, transport, and retention of fluvial sedimentary organic matter in South Africa's largest freshwater wetland, Mkhuze Wetland System. Biogeosciences, 19(11), 2881-2902, https://doi.org/10.5194/bg-19-2881-2022

Project(s):

Tracing Human and Climate impacts in South Africa (TRACES)

Funding:

Federal Ministry of Education and Research (BMBF), grant/award no. 03F0798A : Tracing Human and Climate impacts in South Africa

Coverage:

Median Latitude: -27.803904 * Median Longitude: 32.454323 * South-bound Latitude: -27.945700 * West-bound Longitude: 32.017550 * North-bound Latitude: -27.583917 * East-bound Longitude: 32.561083

Minimum DEPTH, sediment/rock: 0.1 m * Maximum DEPTH, sediment/rock: 0.1 m

Event(s):

MK01-10 * Latitude: -27.598700 * Longitude: 32.302083 * Location: Mkuze River * Comment: TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018

MK02-2 * Latitude: -27.654833 * Longitude: 32.403083 * Location: Mkuze River

MK02-3 * Latitude: -27.654833 * Longitude: 32.403083 * Location: Mkuze River

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Event label	Event		Gensel, Julia
2	Latitude of event	Latitude		Gensel, Julia
3	Longitude of event	Longitude		Gensel, Julia
4	DEPTH, sediment/rock	Depth sed	m	Gensel, Julia	Geocode
5	Sample type	Samp type		Gensel, Julia
6	Sample comment	Sample comment		Gensel, Julia
7	Species	Species		Gensel, Julia
8	n-Alkane C16	C16	ng/g	Gensel, Julia
9	n-Alkane C17	C17	ng/g	Gensel, Julia
10	n-Alkane C18	C18	ng/g	Gensel, Julia
11	n-Alkane C19	C19	ng/g	Gensel, Julia
12	n-Alkane C20	C20	ng/g	Gensel, Julia
13	n-Alkane C21	C21	ng/g	Gensel, Julia
14	n-Alkane C22	C22	ng/g	Gensel, Julia
15	n-Alkane C23	C23	ng/g	Gensel, Julia
16	n-Alkane C24	C24	ng/g	Gensel, Julia
17	n-Alkane C25	C25	ng/g	Gensel, Julia
18	n-Alkane C26	C26	ng/g	Gensel, Julia
19	n-Alkane C27	C27	ng/g	Gensel, Julia
20	n-Alkane C28	C28	ng/g	Gensel, Julia
21	n-Alkane C29	C29	ng/g	Gensel, Julia
22	n-Alkane C30	C30	ng/g	Gensel, Julia
23	n-Alkane C31	C31	ng/g	Gensel, Julia
24	n-Alkane C32	C32	ng/g	Gensel, Julia
25	n-Alkane C33	C33	ng/g	Gensel, Julia
26	n-Alkane C34	C34	ng/g	Gensel, Julia
27	n-Alkane C35	C35	ng/g	Gensel, Julia
28	n-Alkane C23, δ13C	C23 δ13C	‰ PDB	Gensel, Julia
29	n-Alkane C23, δ13C, standard deviation	C23 δ13C std dev	±	Gensel, Julia
30	n-Alkane C25, δ13C	C25 δ13C	‰ PDB	Gensel, Julia
31	n-Alkane C25, δ13C, standard deviation	C25 δ13C std dev	±	Gensel, Julia
32	n-Alkane C27, δ13C	C27 δ13C	‰ PDB	Gensel, Julia
33	n-Alkane C27, δ13C, standard deviation	C27 δ13C std dev	±	Gensel, Julia
34	n-Alkane C29, δ13C	C29 δ13C	‰ PDB	Gensel, Julia
35	n-Alkane C29, δ13C, standard deviation	C29 δ13C std dev	±	Gensel, Julia
36	n-Alkane C31, δ13C	C31 δ13C	‰ PDB	Gensel, Julia
37	n-Alkane C31, δ13C, standard deviation	C31 δ13C std dev	±	Gensel, Julia
38	n-Alkane C33, δ13C	C33 δ13C	‰ PDB	Gensel, Julia
39	n-Alkane C33, δ13C, standard deviation	C33 δ13C std dev	±	Gensel, Julia
40	n-Alkane C35, δ13C	C35 δ13C	‰ PDB	Gensel, Julia
41	n-Alkane C35, δ13C, standard deviation	C35 δ13C std dev	±	Gensel, Julia
42	n-Alkane C25, δD	C25 δD	‰ SMOW	Gensel, Julia
43	n-Alkane C25, δD, standard deviation	C25 δD std dev	±	Gensel, Julia
44	n-Alkane C27, δD	C27 δD	‰ SMOW	Gensel, Julia
45	n-Alkane C27, δD, standard deviation	C27 δD std dev	±	Gensel, Julia
46	n-Alkane C29, δD	C29 δD	‰ SMOW	Gensel, Julia
47	n-Alkane C29, δD, standard deviation	C29 δD std dev	±	Gensel, Julia
48	n-Alkane C31, δD	C31 δD	‰ SMOW	Gensel, Julia
49	n-Alkane C31, δD, standard deviation	C31 δD std dev	±	Gensel, Julia
50	n-Alkane C33, δD	C33 δD	‰ SMOW	Gensel, Julia
51	n-Alkane C33, δD, standard deviation	C33 δD std dev	±	Gensel, Julia
52	n-Alkane C35, δD	C35 δD	‰ SMOW	Gensel, Julia
53	n-Alkane C35, δD, standard deviation	C35 δD std dev	±	Gensel, Julia
54	Carbon, organic, total	TOC	%	Gensel, Julia
55	Nitrogen, total	TN	%	Gensel, Julia
56	δ13C, bulk carbonate	δ13C bulk carb	‰ PDB	Gensel, Julia
57	Carbon/Nitrogen ratio	C/N		Gensel, Julia
58	Hydrogen index	HI		Gensel, Julia
59	I-index	I-index		Gensel, Julia
60	R-Index	R-Index		Gensel, Julia

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

2231 data points

Data

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

1 Event	2 Latitude	3 Longitude	4 Depth sed [m]	5 Samp type	6 Sample comment	7 Species	8 C16 [ng/g]	9 C17 [ng/g]	10 C18 [ng/g]	11 C19 [ng/g]	12 C20 [ng/g]	13 C21 [ng/g]	14 C22 [ng/g]	15 C23 [ng/g]	16 C24 [ng/g]	17 C25 [ng/g]	18 C26 [ng/g]	19 C27 [ng/g]	20 C28 [ng/g]	21 C29 [ng/g]	22 C30 [ng/g]	23 C31 [ng/g]	24 C32 [ng/g]	25 C33 [ng/g]	26 C34 [ng/g]	27 C35 [ng/g]	28 C23 δ13C [‰ PDB]	29 C23 δ13C std dev [±]	30 C25 δ13C [‰ PDB]	31 C25 δ13C std dev [±]	32 C27 δ13C [‰ PDB]	33 C27 δ13C std dev [±]	34 C29 δ13C [‰ PDB]	35 C29 δ13C std dev [±]	36 C31 δ13C [‰ PDB]	37 C31 δ13C std dev [±]	38 C33 δ13C [‰ PDB]	39 C33 δ13C std dev [±]	40 C35 δ13C [‰ PDB]	41 C35 δ13C std dev [±]	42 C25 δD [‰ SMOW]	43 C25 δD std dev [±]	44 C27 δD [‰ SMOW]	45 C27 δD std dev [±]	46 C29 δD [‰ SMOW]	47 C29 δD std dev [±]	48 C31 δD [‰ SMOW]	49 C31 δD std dev [±]	50 C33 δD [‰ SMOW]	51 C33 δD std dev [±]	52 C35 δD [‰ SMOW]	53 C35 δD std dev [±]	54 TOC [%]	55 TN [%]	56 δ13C bulk carb [‰ PDB]	57 C/N	58 HI	59 I-index	60 R-Index
MK04-1	-27.5944	32.0175	0.1	surface sediment	upper reach		3	532	19	40	35	42	30	81	51	201	88	518	142	1374	160	1977	164	1635	75	308									-30.37																		1.83	0.20	-18.51	10.49	115	0.16	0.60
MK05-1	-27.5839	32.1471	0.1	surface sediment	upper reach		93	2374	40	71	50	75	46	137	63	311	108	964	198	1530	200	2140	174	1622	72	267					-29.75	0.02	-29.39	0.01	-28.51	0.16	-26.52	0.04			-137.67	1.75	-137.93	0.28	-143.32	0.20	-151.90	0.16	-157.11	0.15			4.14	0.39	-23.69	12.28	128	0.09	0.62
MK06-1	-27.5918	32.2185	0.1	surface sediment	upper reach		4	139	7	14	15	20	13	32	18	75	26	145	37	290	44	480	51	432	25	117			-25.92	0.10	-27.84	0.10	-28.22	0.01	-28.24	0.06	-25.80	0.01			-148.29	0.46	-147.12	1.74	-147.40	0.35	-151.16	0.02	-156.47	0.78	-150.18	1.33	1.20	0.11	-20.05	12.56	99	0.14	0.63
MK01-10	-27.5987	32.3021	0.1	surface sediment	upper reach		11	94	16	47	29	41	28	89	45	264	81	522	145	1945	215	2413	161	1003	54	208	-29.7900	0.09	-30.66	0.02	-30.44	0.15	-32.29	0.03	-33.20	0.04	-28.39	0.04	-24.70	0.00	-139.82	0.75	-142.52	0.03	-131.53	0.20	-125.38	0.27	-145.92	0.61			1.68	0.17	-25.32	11.25	116	0.03	0.65
MK02-2	-27.6548	32.4031	0.1	surface sediment	floodplain		10	42	17	30	27	29	23	30	20	42	21	71	21	96	24	191	28	223	16	92	-23.2700	0.08	-21.95	0.10	-21.92	0.15	-24.03	0.04	-24.65	0.07	-21.66	0.08	-19.55	0.14																	52	0.11	0.71
MK02-3	-27.6548	32.4031	0.1	surface sediment	floodplain		15	59	18	34	33	40	32	99	34	129	47	312	93	977	138	1684	137	1206	54	271	-29.4000	0.07	-29.11	0.02	-28.41	0.02	-31.05	0.04	-30.41	0.07	-27.23	0.03	-24.75	0.13	-146.51	0.72	-154.57	0.79	-143.86	0.05	-141.78	0.53	-154.65	0.44	-154.38	0.42	1.05	0.08	-18.82	14.67	106	0.04	0.66
MK03-1	-27.6628	32.4199	0.1	surface sediment	floodplain		0	4	2	6	8	11	10	17	13	29	15	52	15	66	17	125	17	145	12	54	-21.3100	0.20	-22.04	0.21	-23.29	0.05	-24.72	0.01	-23.58	0.04	-22.10	0.01	-20.00	0.06	-137.46		-149.60		-138.86		-145.78		-148.15								34	0.18	0.65
MK03-2	-27.6628	32.4199	0.1	surface sediment	floodplain		12	55	18	36	32	34	27	50	43	138	62	205	42	173	38	317	44	473	25	131			-22.24	0.00	-22.45	0.06	-24.70	0.02	-24.12	0.19	-21.91	0.16			-159.22	1.54	-161.81	0.43	-160.37	0.98	-163.69	0.47	-170.29	0.17	-162.15	1.64	2.48	0.19	-24.75	16.30	102	0.06	0.65
MK03-3	-27.6628	32.4199	0.1	surface sediment	floodplain		3	14	6	13	16	17	15	23	16	38	0	60	18	98	19	144	19	137	12	46	-26.1500	0.23	-25.18	0.03	-25.52	0.12	-27.24	0.04	-26.58	0.06	-23.88	0.01	-21.72	0.19	-138.86		-141.42		-145.66		-144.14		-152.95				3.86	0.34		13.06	106	0.11	0.63
MK12-1	-27.6961	32.4679	0.1	surface sediment	floodplain		6	46	6	12	11	18	15	75	21	97	26	163	32	261	35	416	45	420	23	115	-22.3000	0.11	-25.38	0.11	-25.91	0.04	-29.78	0.00	-28.72	0.11	-26.18	0.00	-23.42	0.00	-144.43	1.25	-157.42	1.13	-149.47	0.84	-150.86	1.41	-157.85	0.30			1.77	0.12	-18.85	16.74	56	0.16	0.64
MK10-1	-27.6962	32.4746	0.1	surface sediment	floodplain		11	35	10	14	15	33	19	59	27	147	42	305	57	650	81	984	106	1165	52	288			-27.25	0.08	-27.79	0.17	-30.57	0.03	-27.35	0.10	-25.91	0.07	-23.80	0.07	-147.93	1.00	-158.66	0.94	-160.28	0.06	-157.23	0.27	-162.96	0.05			1.56	0.15	-20.10	11.77	77	0.14	0.62
MK20-1	-27.7254	32.4868	0.1	surface sediment	floodplain		36	380	71	337	87	403	97	743	111	593	106	752	153	1079	163	1700	170	1357	84	421	-22.7200	0.04	-24.48	0.07	-24.98	0.09	-25.07	0.11	-23.85	0.08	-22.62	0.10			-142.13	0.75	-157.25	1.97	-154.98	0.32	-151.47	0.01	-155.26	0.52			5.01	0.50	-20.52	11.73	172	0.00	0.69
MK20-2	-27.7254	32.4868	0.1	surface sediment	floodplain		38	568	92	307	121	836	199	1642	220	909	137	895	184	1234	216	2297	218	1874	95	437	-20.5600	0.04	-23.04	0.02	-24.81	0.12	-24.66	0.02	-23.71	0.03	-22.28	0.15			-137.81	0.35	-147.42	1.24	-146.46	0.23	-146.02	0.34	-150.32	0.53			5.81	0.47	-19.64	14.65	161	0.02	0.69
MK21-1	-27.7460	32.5021	0.1	surface sediment	floodplain		33	229	59	155	104	208	155	592	139	499	159	902	237	1681	286	3611	322	3316	736	26	-23.3400	0.05	-24.31	0.04	-25.81	0.03	-26.94	0.04	-23.42	0.24	-21.17	0.03					-146.81	1.77	-138.49	0.18	-135.58	0.55	-138.46	1.18			15.38	1.03	-19.65	17.50	220	0.07	0.64
MK22-1	-27.7460	32.5021	0.1	surface sediment	swamp		23	133	39	119	76	157	94	370	90	371	103	744	147	1195	166	1821	182	1690	90	702	-24.5300	0.09	-24.31	0.04	-23.36	0.14	-23.74	0.03	-22.61	0.04	-21.30	0.05	-20.88	0.09	-142.21	1.27	-158.28	0.33	-150.89	0.10	-141.52	0.02	-148.31	0.79			6.42	0.54	-21.44	13.83	121	0.05	0.64
MK07-5_1	-27.8412	32.4784	0.1	surface sediment	swamp		5	25	11	30	29	49	42	160	69	256	75	399	96	720	117	1226	135	1263	71	653	-22.6700	0.03	-24.53	0.11	-24.53	0.00	-25.72	0.01	-24.43	0.12	-21.23	0.14	-20.37	0.07	-158.86		-165.33		-157.06		-147.47		-151.02		-160.37		8.10	0.61	-20.50	15.57	113	0.05	0.65
MK07-5_2	-27.8412	32.4784	0.1	surface sediment	swamp		11	136	49	131	81	210	165	545	187	783	215	1584	344	2388	328	3123	356	3390	200	1488	-24.1000	0.01	-25.77	0.07	-24.58	0.02	-25.25	0.01	-24.88	0.13	-22.63	0.04	-21.23	0.07	-160.15	0.32	-169.30	0.26	-164.77	0.03	-154.98	0.04	-159.50	0.23	-164.57	0.71					99	0.15	0.55
MK09-2	-27.8524	32.4768	0.1	surface sediment	swamp		4	26	7	20	20	33	30	130	103	293	91	356	96	596	117	997	132	1318	69	447	-26.9600	0.12	-25.88	0.17	-26.22	0.05	-29.03	0.06	-26.70	0.17	-22.61	0.01	-21.48	0.08													4.62	0.40	-22.64	13.36	81	0.17	0.59
MK23-1	-27.8526	32.4749	0.1	surface sediment	swamp		12	23	9	19	35	61	67	150	114	387	128	443	80	399	89	813	110	1356	67	429			-22.74	0.05	-25.01	0.09	-26.66	0.04	-26.59	0.11	-22.68	0.01			-139.05	0.03	-140.71	0.65	-133.80	0.42	-155.24	0.04	-161.32	0.51	-158.06	0.04	5.03	0.38	-20.86	15.53	84	0.05	0.68
MK24-4	-27.8561	32.4793	0.1	surface sediment	swamp		16	57	28	67	57	66	69	365	316	489	112	323	115	629	109	532	54	299	22	102	-32.3900	0.04	-32.18	0.09	-31.46	0.12	-31.94	0.09	-30.62	0.06	-25.31	0.11			-151.05	1.12	-151.09	1.79	-154.19	0.26	-149.67	0.05	-142.64	0.02			6.35	0.56	-27.51	13.19	65	0.10	0.64
MK14-1	-27.8567	32.4785	0.1	surface sediment	swamp		6	90	15	87	29	78	44	188	81	307	94	615	150	1102	152	1473	153	1656	78	510	-26.3600	0.19	-27.38	0.00	-28.40	0.05	-29.66	0.06	-27.24	0.11	-23.45	0.02	-22.12	0.14	-147.62	0.40	-160.37	0.76	-157.93	0.29	-153.83	0.24	-160.43	0.49			3.70	0.31	-23.33	14.14	72	0.24	0.53
MK13-1	-27.8624	32.4805	0.1	surface sediment	swamp		0	4	3	13	8	22	16	90	34	127	29	167	36	283	46	556	58	740	31	211	-26.6400	0.02	-25.93	0.01	-26.62	0.05	-27.51	0.05	-25.77	0.01	-23.12	0.02	-21.77	0.05	-148.98	2.39	-157.46	0.43	-154.51	0.62	-152.24	0.61	-159.20	0.56	-156.61	0.54	0.92	0.03	-19.47	17.35	72	0.22	0.55
MK15-1	-27.8650	32.4840	0.1	surface sediment	swamp		2	26	6	28	14	33	21	87	39	125	29	166	41	305	47	563	50	560	24	162	-24.6000	0.01	-25.24	0.14	-26.62	0.09	-28.22	0.07	-26.87	0.07	-23.35	0.09	-21.05	0.00	-140.37	0.48	-155.11	0.74	-152.88	0.58	-148.37	0.67	-154.60	0.84	-156.58	0.30	1.94	0.05	-20.69	47.67	68	0.23	0.57
MK16-1	-27.8700	32.4845	0.1	surface sediment	swamp		5	76	9	42	20	47	33	119	57	178	44	234	60	399	63	609	64	637	29	173	-25.1300	0.01	-25.63	0.06	-27.93	0.05	-29.11	0.08	-27.02	0.04	-23.58	0.11	-21.62	0.03	-140.07	0.74	-152.69	0.96	-153.44	0.33	-151.73	0.55	-158.50	0.91			2.08	0.23	-20.86	10.97	71	0.29	0.53
MK17-1	-27.8738	32.4838	0.1	surface sediment	delta		1	9	2	6	4	8	5	22	10	35	8	46	11	74	12	142	14	135	6	41	-23.2600	0.12	-23.92	0.02	-25.05	0.25	-27.12	0.13	-26.59	0.07	-23.33	0.05	-20.92	0.07													0.77	0.09	-20.40	9.67	77	0.29	0.56
MK18-1	-27.8780	32.4834	0.1	surface sediment	delta		13	224	11	35	18	36	26	76	36	119	36	168	49	281	52	467	55	489	26	130	-23.9600	0.12	-23.97	0.04	-26.00	0.01	-28.06	0.01	-26.46	0.05	-23.56	0.10	-22.09	0.02	-131.58	1.49	-145.89	1.93	-146.73	0.23	-150.40	0.59	-157.51	0.21	-157.54	0.71	1.69	0.29	-19.66	6.89	78	0.30	0.55
MK19-1	-27.8819	32.4823	0.1	surface sediment	delta		17	259	13	40	21	41	30	88	41	126	35	151	42	218	40	326	39	329	19	87	-24.0400		-23.84		-25.86		-28.18		-26.53		-23.67		-21.54														1.76	0.18	-19.68	11.40	80	0.30	0.56
MK08-2	-27.8896	32.4830	0.1	surface sediment	delta		8	95	8	21	13	26	21	77	40	118	32	144	40	238	47	530	59	706	30	177	-24.3100	0.05	-24.06	0.02	-25.49	0.06	-26.98	0.15	-25.78	0.02	-23.68	0.04	-23.16	0.06	-140.62	1.34	-152.12	2.13	-148.53	1.00	-151.58	0.51	-158.63	1.43			1.51	0.14	-18.91	12.31	65	0.26	0.58
MK08-4	-27.8863	32.4838	0.1	surface sediment	delta		4	100	6	17	12	24	20	60	29	86	25	107	31	157	29	223	26	187	12	49	-24.0800	0.11	-23.71	0.05	-25.98	0.05	-28.19	0.07	-27.02	0.02	-23.69	0.11			-130.57		-144.35		-148.59		-148.78		-154.99				1.37	0.14	-19.35	11.49	65	0.32	0.54
MK25-1	-27.8948	32.4832	0.1	surface sediment	lake		5	124	11	32	21	46	36	112	49	153	40	183	52	270	52	405	48	350	21	95			-23.70	0.14	-26.04	0.18	-28.27	0.01	-27.38	0.09	-24.10	0.14							-134.01		-145.20						1.70	0.17	-20.72	11.37	67	0.32	0.53
MK26-1	-27.8995	32.4834	0.1	surface sediment	lake		5	73	18	39	29	51	42	121	57	167	47	200	61	313	62	495	60	437	27	121									-27.35	0.01	-24.79	0.24			-127.63		-142.69	2.03	-142.43	2.93	-146.65	1.36	-153.09	0.70			1.52	0.16	-18.67	11.32	70	0.28	0.55
MK27-1	-27.9049	32.4849	0.1	surface sediment	lake		0	23	6	25	20	48	33	102	44	148	34	167	46	249	54	432	54	405	24	112					-24.43	0.01	-26.62	0.05	-29.75	0.03	-23.83	0.20									-140.99	0.98					1.49	0.14	-19.64	12.41	56	0.30	0.53
MK28-1	-27.9083	32.4859	0.1	surface sediment	lake		0	21	6	25	21	51	38	116	55	172	42	191	54	266	55	430	51	374	22	96			-22.79	0.01	-24.68	0.07	-26.93	0.19	-26.25	0.07	-23.64	0.03									-138.15						1.59	0.14	-19.35	13.21	55	0.32	0.53
MK29-1	-27.9130	32.4860	0.1	surface sediment	lake		0	24	6	19	16	39	28	87	40	133	31	150	44	225	48	389	48	363	22	100	-22.9700	0.24	-23.08	0.13	-24.78	0.09	-26.86	0.09	-25.91	0.18	-23.25	0.06							-130.62		-142.97		-139.64				1.61	0.15	-19.36	12.92	61	0.32	0.53
MK30-1	-27.9178	32.4867	0.1	surface sediment	lake		4	20	9	23	19	37	26	62	27	81	23	104	32	190	44	393	50	405	24	117	-22.7000		-22.87		-24.44		-26.93		-26.29		-23.93		-22.17								-140.88		-144.36				1.50	0.16	-18.77	10.91	53	0.37	0.52
MK31-1	-27.9225	32.4869	0.1	surface sediment	lake		4	40	6	23	17	36	29	87	40	128	31	151	44	236	52	418	53	394	23	108			-23.34	0.08	-25.61	0.09	-26.89	0.09	-25.61	0.23	-23.56	0.02							-132.22		-145.10		-146.16				1.50	0.13	-19.38	13.83	54	0.29	0.53
MK32-1	-27.9267	32.4894	0.1	surface sediment	lake		4	53	8	25	20	42	35	108	50	152	36	155	42	202	41	305	37	262	16	71	-23.7000	0.25	-23.33	0.09	-24.75	0.09	-26.96	0.20	-26.29	0.05	-23.60	0.04							-130.02		-138.56										54	0.32	0.52
MK33-1	-27.9313	32.4912	0.1	surface sediment	lake		4	47	8	22	16	29	23	60	29	83	24	108	36	193	43	369	47	364	22	100	-23.5300	0.05	-23.15	0.12	-24.87	0.15	-27.02	0.19	-26.09	0.10	-23.54	0.04	-21.97	0.08													1.44	0.12	-18.63	13.82	53	0.35	0.52
MK34-1	-27.9361	32.4930	0.1	surface sediment	lake		3	55	8	22	16	29	24	68	30	91	23	109	33	179	41	331	44	331	20	94	-23.6000	0.04	-23.28	0.11	-25.07	0.07	-27.02	0.00	-25.85	0.16	-23.41	0.04	-21.69	0.21													1.55	0.13	-19.86	13.22	58	0.32	0.54
MK35-1	-27.9403	32.4952	0.1	surface sediment	lake		0	31	6	22	18	38	34	117	55	177	42	192	53	272	57	440	52	385	22	100	-23.7100	0.21	-23.23	0.04	-25.12	0.17	-26.87	0.17	-26.11	0.08	-23.48	0.09	-22.34	0.06													1.60	0.16	-19.01	12.13	57	0.33	0.52
MK36-1	-27.9457	32.4970	0.1	surface sediment	lake		0	21	6	20	16	36	32	119	52	190	44	217	59	319	66	521	61	456	25	118	-23.0400		-22.60		-24.43		-26.55		-26.56		-23.31		-22.00														1.56	0.14	-19.87	13.12	61	0.29	0.54
MK12-3	-27.6961	32.4679		plant	aqua	Nymphaceae	18	36	13	24	27	92	51	333	77	513	243	2422	341	2264	171	838	56	300	26	56	-26.7930	0.05	-31.08	0.12	-32.39	0.01	-31.88	0.03	-31.04	0.00	-27.66	0.11
MK07-2	-27.8412	32.4784		plant	aqua	Nymphaceae	10	30	17	8	23	21	46	42	21	160	38	524	62	619	45	141	9	28	4	10	-29.2465	0.09	-30.71	0.14	-30.59	0.01	-30.39	0.02	-30.17	0.21
MK21-4	-27.7460	32.5021		plant	grass	Vossia cuspidata	0	5	5	8	23	0	11	69	30	310	83	1408	114	1303	72	665	63	551	71	434			-18.51	0.09	-17.91	0.00	-18.81	0.01	-21.09	0.05	-21.24	0.07	-20.53	0.05
MK07-4	-27.8412	32.4784		plant	grass	Vossia cuspidata	0	0	0	14	16	144	36	344	203	1311	644	7513	760	7513	316	2780	192	1868	162	2769			-18.18	0.02	-17.85	0.00	-18.51	0.04	-21.86	0.06	-22.27	0.06	-21.31	0.17
MK21-5	-27.7460	32.5021		plant	cyperus	Cyperus papyrus	135	127	27	104	85	299	207	677	201	988	582	8907	3879	41081	12981	67068	32226	26892	9603	5273					-21.02	0.05	-20.08	0.04	-20.53	0.09	-20.63	0.16
MK07-3	-27.8412	32.4784		plant	aqua	Phragmites australis	0	0	0	7	11	61	63	651	270	1630	602	3225	529	7429	119	570	89	64	12	10	-31.8720	0.07	-33.09	0.05	-34.41	0.08	-34.85	0.12	-34.60	0.16
MK24-5	-27.8561	32.4793		plant	aqua	Phragmites australis	0	0	7	16	20	263	97	934	114	807	170	1446	239	2193	65	327	0	0	0	0	-32.4610	0.15	-33.46	0.05	-33.86	0.06	-34.03	0.02	-35.38	0.09
MK07-6	-27.8412	32.4784		plant	grass	Cynodon dactylon	0	0	0	16	0	107	39	356	71	565	198	1331	629	3727	1332	24393	1961	38641	612	2661							-22.62	0.15	-22.06	0.06	-21.88	0.04
MK07-7	-27.8412	32.4784		plant	grass	Cynodon dactylon	0	0	0	0	0	155	34	399	44	442	103	1000	380	2281	773	14364	1835	59673	1469	12062									-22.15	0.05	-21.89	0.02	-22.18	0.04
MK37-2	-27.5991	32.5611		plant	cyperus	Cyperus alternifolius	0	0	0	45	34	610	51	561	67	433	158	2377	667	24022	3196	124973	4110	27803	319	358							-38.49	0.01	-38.87	0.04	-38.83	0.10