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  "code": "7b.b.j",
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  "code": "7b.b.j",
            
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  "contributor": "NIOZ Royal Netherlands Institute for Sea Research",
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  "contributor": "NIOZ Royal Netherlands Institute for Sea Research",
            
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  "creators": "[{\"firstname\":\"Laura 
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  "creators": "[{\"firstname\":\"Laura 
            
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T.\",\"lastname\":\"Schreuder\",\"affiliation\":\"Royal Netherlands 
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T.\",\"lastname\":\"Schreuder\",\"affiliation\":\"Royal Netherlands 
            
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Institute for Sea 
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Institute for Sea 
            
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euder@nioz.nl\",\"iscorrespondingauthor\":true},{\"firstname\":\"Timme 
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euder@nioz.nl\",\"iscorrespondingauthor\":true},{\"firstname\":\"Timme 
            
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H.\",\"lastname\":\"Donders\",\"affiliation\":\"Utrecht 
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H.\",\"lastname\":\"Donders\",\"affiliation\":\"Utrecht 
            
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rstname\":\"Anchelique\",\"lastname\":\"Mets\",\"affiliation\":\"Royal 
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rstname\":\"Anchelique\",\"lastname\":\"Mets\",\"affiliation\":\"Royal 
            
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Netherlands Institute for Sea 
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Netherlands Institute for Sea 
            
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address\":\"\",\"iscorrespondingauthor\":false},{\"firstname\":\"Ellen 
            
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C.\",\"lastname\":\"Hopmans\",\"affiliation\":\"Royal Netherlands 
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C.\",\"lastname\":\"Hopmans\",\"affiliation\":\"Royal Netherlands 
            
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Institute for Sea 
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Institute for Sea 
            
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rstname\":\"Stefan\",\"lastname\":\"Schouten\",\"affiliation\":\"Royal 
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rstname\":\"Stefan\",\"lastname\":\"Schouten\",\"affiliation\":\"Royal 
            
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Netherlands Institute for Sea 
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Netherlands Institute for Sea 
            
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laddress\":\"\",\"iscorrespondingauthor\":false},{\"firstname\":\"Jaap 
            
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S.\",\"lastname\":\"Sinninghe Damste\",\"affiliation\":\"Royal 
            
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Netherlands Institute for Sea 
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Netherlands Institute for Sea 
            
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  "dates": 
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  "dates": 
            
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  "deposit_date": "2018-11-14",
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  "deposit_date": "2018-11-14",
            
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  "depositor": "Laura Schreuder",
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  "depositor": "Laura Schreuder",
            
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  "distribution_date": "2018-11-14",
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  "distribution_date": "2018-11-14",
            
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  "distributor": "Research Data Management(NIOZ Royal Netherlands 
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  "distributor": "Research Data Management(NIOZ Royal Netherlands 
            
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Institute for Sea Research)",
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Institute for Sea Research)",
            
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  "doi_date_published": "2019-10-30",
            
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  "funding_references": 
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  "funding_references": 
            
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name\":\"NWO\",\"awardnumber\":\"824.14.001\",\"awardtitle\":\"Tracing 
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name\":\"NWO\",\"awardnumber\":\"824.14.001\",\"awardtitle\":\"Tracing 
            
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ancient biomass burning using molecular biomarkers in marine and lake 
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ancient biomass burning using molecular biomarkers in marine and lake 
            
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sediments\"}]",
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sediments\"}]",
            
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  "geographic_coverage": "[{\"place\":\"Lake Allom, Fraser Island, 
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latitude_2\":153.2074233367939,\"longitude_2\":-25.198231244437547}]",
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  "name": "7bbj",
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  "name": "7bbj",
            
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  "notes": "Continental fire and vegetation history have been widely 
47
  "notes": "Continental fire and vegetation history have been widely 
            
47
studied in sedimentary archives using palynological proxies (i.e. 
48
studied in sedimentary archives using palynological proxies (i.e. 
            
48
charcoal abundance and the pollen assemblage) and organic proxies 
49
charcoal abundance and the pollen assemblage) and organic proxies 
            
49
(i.e. the anhydrosugars levoglucosan and it isomers, and plant-wax 
50
(i.e. the anhydrosugars levoglucosan and it isomers, and plant-wax 
            
50
n-alkanes), but rarely in concert. Here, we compared palynological and 
51
n-alkanes), but rarely in concert. Here, we compared palynological and 
            
51
organic proxies to reconstruct fire and vegetation history in a 
52
organic proxies to reconstruct fire and vegetation history in a 
            
52
sediment core from Lake Allom on Fraser Island, Australia, covering 
53
sediment core from Lake Allom on Fraser Island, Australia, covering 
            
53
the last 5.4 kyrs. We found that anhydrosugar and microscopic charcoal 
54
the last 5.4 kyrs. We found that anhydrosugar and microscopic charcoal 
            
54
accumulation rates had similar trends, while trends in macroscopic 
55
accumulation rates had similar trends, while trends in macroscopic 
            
55
charcoal accumulation rates were different. This was attributed to the 
56
charcoal accumulation rates were different. This was attributed to the 
            
56
short distance over which macroscopic charcoal is transported compared 
57
short distance over which macroscopic charcoal is transported compared 
            
57
to microscopic charcoal and anhydrosugars. Furthermore, differences in 
58
to microscopic charcoal and anhydrosugars. Furthermore, differences in 
            
58
fire regime and combusted types of vegetation may also explain the 
59
fire regime and combusted types of vegetation may also explain the 
            
59
differences in levoglucosan and charcoal accumulation rates in 
60
differences in levoglucosan and charcoal accumulation rates in 
            
60
lacustrine sediments. Moreover, we found that the ratios between 
61
lacustrine sediments. Moreover, we found that the ratios between 
            
61
anhydrosugars seem to be governed by combustion conditions and not by 
62
anhydrosugars seem to be governed by combustion conditions and not by 
            
62
type of burned vegetation. Long chain n-alkane accumulation rates and 
63
type of burned vegetation. Long chain n-alkane accumulation rates and 
            
63
stable isotope compositions showed similar patterns as the pollen 
64
stable isotope compositions showed similar patterns as the pollen 
            
64
assemblage throughout the last 5.4 kyrs, with both representing the 
65
assemblage throughout the last 5.4 kyrs, with both representing the 
            
65
local vegetation history. Collectively, our results showed that in the 
66
local vegetation history. Collectively, our results showed that in the 
            
66
period between 5.4 and 4 ka, biomass burning was low on Fraser Island, 
67
period between 5.4 and 4 ka, biomass burning was low on Fraser Island, 
            
67
while at 4 ka, fire occurrence started to increase, in absence of 
68
while at 4 ka, fire occurrence started to increase, in absence of 
            
68
changes in vegetation and hydrology. Therefore, we suggest that 
69
changes in vegetation and hydrology. Therefore, we suggest that 
            
69
increased fire activity on Fraser Island around 4 ka might have been 
70
increased fire activity on Fraser Island around 4 ka might have been 
            
70
caused by human-lit biomass burning, since aboriginals settled on 
71
caused by human-lit biomass burning, since aboriginals settled on 
            
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Fraser Island around this time.",
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Fraser Island around this time.",
            
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  "subject": "Earth and Environmental Sciences",
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  "subject": "Earth and Environmental Sciences",
            
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  "tags": [
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  "tags": [
            
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    {
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    {
            
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      "display_name": "Biomass burning",
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      "display_name": "Biomass burning",
            
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      "display_name": "anhydrosugars",
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      "display_name": "anhydrosugars",
            
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    {
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      "display_name": "long chain n-alkanes",
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      "display_name": "long chain n-alkanes",
            
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      "name": "southeast",
            
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      "state": "active",
            
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      "display_name": "vegetation history",
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      "display_name": "vegetation history",
            
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      "id": "ef4421b7-566e-4d70-a805-ec74f447a47f",
            
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      "name": "vegetation history",
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  ],
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  "title": "Comparison of organic and palynological proxies for 
177
  "title": "Comparison of organic and palynological proxies for 
            
176
biomass burning and vegetation - data",
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biomass burning and vegetation - data",
            
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  "type": "dataset",
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  "type": "dataset",
            
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  "url": "https://dataportal.nioz.nl/doi/10.25850/nioz/7b.b.j",
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  "version": "1"
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  "version": "2"
            
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}
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}