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Anthropogenic and climate-driven environmental change in the Songnen Plain of northeastern China over the past 200 years
Mackenzie, Lydia1; Bao, Kunshan1; Mao, Limi (毛礼米)2,3; Klamt, Anna-Marie1; Pratte, Steve1; Shen, Ji1
2018-12-15
Source PublicationPALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
Volume511Pages:208-217
Abstract

Multi-proxy records (pollen, particle size, loss on ignition, C:N ratios and radioisotopes, Pb-210 and Cs-137) of natural and anthropogenic environmental change are reported for sediment cores from three lakes in the Songnen Plain of northeastern China. These data provide high-resolution records of vegetation history and catchment dynamics for the region over the past 200 years. Records show that vegetation initially responded to a cooler and drier climate during the Little Ice Age with high values of Pin us, Ephedra and Amaranthaceae and low values of Cyperaceae. As anthropogenic activity increased in northeastern China, Pinus gradually declined while broad-leaved deciduous vegetation increased in the region from 1900 CE. Aquatic taxa also increased from 1900 CE as the wetlands responded to changing lake water levels and agricultural activities. Land policy implementation had a profound impact on the vegetation with arboreal pollen in Keqin and Hongyan lakes declining from 1900 CE as marginal land was reclaimed, and agricultural activities increased. Vegetation diversity increased as agricultural activities caused environmental disturbance, with pollen taxa indicating human disturbance including Humulus, Polygonum and Xanthium. Silt and organic content increased and C:N ratios declined after 1940 CE as erosion in the catchment and productivity in the lakes increased. Re-vegetation strategies introduced in the late 1990s caused an increase in arboreal taxa in the pollen record. This multi-proxy palaeoenvironmental study improves understanding of the long-term relationship between natural and anthropogenic environmental change in northeastern China.

KeywordHuman Activities Palaeolimnology Landscape Change Palynology Pb-210 And Cs-137 Wetland History
DOI10.1016/j.palaeo.2018.08.005
Language英语
WOS KeywordHolocene Vegetation ; Pollen Record ; Lake ; Future ; Cover
Funding ProjectNSFC-BF/IGFA Joint Research Project[4166114404] ; National Key R&D Program of China[2016YFA0602300] ; National Science and Technology Basic Work of China[2014FY110400] ; NSFC-CNRS Joint Research Project[41611130163] ; NIGLAS Cross-functional Innovation Teams[NIGLAS2016TD01]
WOS Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS IDWOS:000452583600011
Funding OrganizationNSFC-BF/IGFA Joint Research Project ; National Key R&D Program of China ; National Science and Technology Basic Work of China ; NSFC-CNRS Joint Research Project ; NIGLAS Cross-functional Innovation Teams
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/16216
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorBao, Kunshan
Affiliation1.Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Dept Palaeobot & Palynol, Nanjing 210008, Jiangsu, Peoples R China
3.Chinese Acad Sci, Key Lab Econ Stratig & Palaeogeog, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Mackenzie, Lydia,Bao, Kunshan,Mao, Limi ,et al. Anthropogenic and climate-driven environmental change in the Songnen Plain of northeastern China over the past 200 years[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2018,511:208-217.
APA Mackenzie, Lydia,Bao, Kunshan,Mao, Limi ,Klamt, Anna-Marie,Pratte, Steve,&Shen, Ji.(2018).Anthropogenic and climate-driven environmental change in the Songnen Plain of northeastern China over the past 200 years.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,511,208-217.
MLA Mackenzie, Lydia,et al."Anthropogenic and climate-driven environmental change in the Songnen Plain of northeastern China over the past 200 years".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 511(2018):208-217.
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